mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
8bde7f776c
- remove trailing white space, trailing empty lines, C++ comments, etc.
- split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)
* Patches by Kenneth Johansson, 25 Jun 2003:
- major rework of command structure
(work done mostly by Michal Cendrowski and Joakim Kristiansen)
1151 lines
34 KiB
C
1151 lines
34 KiB
C
/*
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* (C) Copyright 2001
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* Denis Peter, MPL AG Switzerland
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Note: Part of this code has been derived from linux
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*
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*/
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/**********************************************************************
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* How it works:
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* -------------
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* The framelist / Transfer descriptor / Queue Heads are similar like
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* in the linux usb_uhci.c.
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*
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* During initialization, the following skeleton is allocated in init_skel:
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*
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* framespecific | common chain
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*
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* framelist[]
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* [ 0 ]-----> TD ---------\
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* [ 1 ]-----> TD ----------> TD ------> QH -------> QH -------> QH ---> NULL
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* ... TD ---------/
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* [1023]-----> TD --------/
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*
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* ^^ ^^ ^^ ^^ ^^
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* 7 TDs for 1 TD for Start of Start of End Chain
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* INT (2-128ms) 1ms-INT CTRL Chain BULK Chain
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*
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*
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* Since this is a bootloader, the isochronous transfer descriptor have been removed.
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*
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* Interrupt Transfers.
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* --------------------
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* For Interupt transfers USB_MAX_TEMP_INT_TD Transfer descriptor are available. They
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* will be inserted after the appropriate (depending the interval setting) skeleton TD.
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* If an interrupt has been detected the dev->irqhandler is called. The status and number
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* of transfered bytes is stored in dev->irq_status resp. dev->irq_act_len. If the
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* dev->irqhandler returns 0, the interrupt TD is removed and disabled. If an 1 is returned,
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* the interrupt TD will be reactivated.
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*
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* Control Transfers
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* -----------------
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* Control Transfers are issued by filling the tmp_td with the appropriate data and connect
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* them to the qh_cntrl queue header. Before other control/bulk transfers can be issued,
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* the programm has to wait for completion. This does not allows asynchronous data transfer.
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*
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* Bulk Transfers
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* --------------
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* Bulk Transfers are issued by filling the tmp_td with the appropriate data and connect
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* them to the qh_bulk queue header. Before other control/bulk transfers can be issued,
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* the programm has to wait for completion. This does not allows asynchronous data transfer.
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*
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*
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*/
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#include <common.h>
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#include <pci.h>
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#ifdef CONFIG_USB_UHCI
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#include <usb.h>
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#include "usb_uhci.h"
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#define USB_MAX_TEMP_TD 128 /* number of temporary TDs for bulk and control transfers */
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#define USB_MAX_TEMP_INT_TD 32 /* number of temporary TDs for Interrupt transfers */
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#undef USB_UHCI_DEBUG
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#ifdef USB_UHCI_DEBUG
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#define USB_UHCI_PRINTF(fmt,args...) printf (fmt ,##args)
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#else
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#define USB_UHCI_PRINTF(fmt,args...)
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#endif
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static int irqvec = -1; /* irq vector, if -1 uhci is stopped / reseted */
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unsigned int usb_base_addr; /* base address */
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static uhci_td_t td_int[8]; /* Interrupt Transfer descriptors */
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static uhci_qh_t qh_cntrl; /* control Queue Head */
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static uhci_qh_t qh_bulk; /* bulk Queue Head */
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static uhci_qh_t qh_end; /* end Queue Head */
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static uhci_td_t td_last; /* last TD (linked with end chain) */
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/* temporary tds */
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static uhci_td_t tmp_td[USB_MAX_TEMP_TD]; /* temporary bulk/control td's */
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static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD]; /* temporary interrupt td's */
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static unsigned long framelist[1024] __attribute__ ((aligned (0x1000))); /* frame list */
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static struct virt_root_hub rh; /* struct for root hub */
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/**********************************************************************
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* some forward decleration
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*/
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int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
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void *buffer, int transfer_len,struct devrequest *setup);
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/* fill a td with the approproiate data. Link, status, info and buffer
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* are used by the USB controller itselfes, dev is used to identify the
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* "connected" device
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*/
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void usb_fill_td(uhci_td_t* td,unsigned long link,unsigned long status,
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unsigned long info, unsigned long buffer, unsigned long dev)
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{
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td->link=swap_32(link);
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td->status=swap_32(status);
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td->info=swap_32(info);
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td->buffer=swap_32(buffer);
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td->dev_ptr=dev;
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}
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/* fill a qh with the approproiate data. Head and element are used by the USB controller
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* itselfes. As soon as a valid dev_ptr is filled, a td chain is connected to the qh.
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* Please note, that after completion of the td chain, the entry element is removed /
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* marked invalid by the USB controller.
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*/
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void usb_fill_qh(uhci_qh_t* qh,unsigned long head,unsigned long element)
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{
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qh->head=swap_32(head);
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qh->element=swap_32(element);
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qh->dev_ptr=0L;
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}
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/* get the status of a td->status
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*/
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unsigned long usb_uhci_td_stat(unsigned long status)
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{
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unsigned long result=0;
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result |= (status & TD_CTRL_NAK) ? USB_ST_NAK_REC : 0;
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result |= (status & TD_CTRL_STALLED) ? USB_ST_STALLED : 0;
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result |= (status & TD_CTRL_DBUFERR) ? USB_ST_BUF_ERR : 0;
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result |= (status & TD_CTRL_BABBLE) ? USB_ST_BABBLE_DET : 0;
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result |= (status & TD_CTRL_CRCTIMEO) ? USB_ST_CRC_ERR : 0;
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result |= (status & TD_CTRL_BITSTUFF) ? USB_ST_BIT_ERR : 0;
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result |= (status & TD_CTRL_ACTIVE) ? USB_ST_NOT_PROC : 0;
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return result;
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}
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/* get the status and the transfered len of a td chain.
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* called from the completion handler
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*/
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int usb_get_td_status(uhci_td_t *td,struct usb_device *dev)
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{
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unsigned long temp,info;
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unsigned long stat;
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uhci_td_t *mytd=td;
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if(dev->devnum==rh.devnum)
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return 0;
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dev->act_len=0;
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stat=0;
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do {
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temp=swap_32((unsigned long)mytd->status);
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stat=usb_uhci_td_stat(temp);
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info=swap_32((unsigned long)mytd->info);
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if(((info & 0xff)!= USB_PID_SETUP) &&
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(((info >> 21) & 0x7ff)!= 0x7ff) &&
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(temp & 0x7FF)!=0x7ff)
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{ /* if not setup and not null data pack */
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dev->act_len+=(temp & 0x7FF) + 1; /* the transfered len is act_len + 1 */
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}
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if(stat) { /* status no ok */
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dev->status=stat;
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return -1;
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}
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temp=swap_32((unsigned long)mytd->link);
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mytd=(uhci_td_t *)(temp & 0xfffffff0);
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}while((temp & 0x1)==0); /* process all TDs */
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dev->status=stat;
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return 0; /* Ok */
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}
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/*-------------------------------------------------------------------
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* LOW LEVEL STUFF
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* assembles QHs und TDs for control, bulk and iso
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*-------------------------------------------------------------------*/
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/* Submits a control message. That is a Setup, Data and Status transfer.
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* Routine does not wait for completion.
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*/
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int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
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int transfer_len,struct devrequest *setup)
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{
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unsigned long destination, status;
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int maxsze = usb_maxpacket(dev, pipe);
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unsigned long dataptr;
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int len;
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int pktsze;
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int i=0;
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if (!maxsze) {
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USB_UHCI_PRINTF("uhci_submit_control_urb: pipesize for pipe %lx is zero\n", pipe);
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return -1;
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}
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if(((pipe>>8)&0x7f)==rh.devnum) {
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/* this is the root hub -> redirect it */
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return uhci_submit_rh_msg(dev,pipe,buffer,transfer_len,setup);
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}
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USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n",transfer_len,maxsze);
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/* The "pipe" thing contains the destination in bits 8--18 */
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destination = (pipe & PIPE_DEVEP_MASK) | USB_PID_SETUP; /* Setup stage */
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/* 3 errors */
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status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
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/* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD); */
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/* Build the TD for the control request, try forever, 8 bytes of data */
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usb_fill_td(&tmp_td[i],UHCI_PTR_TERM ,status, destination | (7 << 21),(unsigned long)setup,(unsigned long)dev);
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#if 0
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{
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char *sp=(char *)setup;
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printf("SETUP to pipe %lx: %x %x %x %x %x %x %x %x\n", pipe,
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sp[0],sp[1],sp[2],sp[3],sp[4],sp[5],sp[6],sp[7]);
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}
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#endif
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dataptr = (unsigned long)buffer;
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len=transfer_len;
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/* If direction is "send", change the frame from SETUP (0x2D)
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to OUT (0xE1). Else change it from SETUP to IN (0x69). */
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destination = (pipe & PIPE_DEVEP_MASK) | ((pipe & USB_DIR_IN)==0 ? USB_PID_OUT : USB_PID_IN);
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while (len > 0) {
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/* data stage */
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pktsze = len;
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i++;
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if (pktsze > maxsze)
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pktsze = maxsze;
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destination ^= 1 << TD_TOKEN_TOGGLE; /* toggle DATA0/1 */
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usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, destination | ((pktsze - 1) << 21),dataptr,(unsigned long)dev); /* Status, pktsze bytes of data */
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tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
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dataptr += pktsze;
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len -= pktsze;
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}
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/* Build the final TD for control status */
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/* It's only IN if the pipe is out AND we aren't expecting data */
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destination &= ~UHCI_PID;
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if (((pipe & USB_DIR_IN)==0) || (transfer_len == 0))
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destination |= USB_PID_IN;
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else
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destination |= USB_PID_OUT;
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destination |= 1 << TD_TOKEN_TOGGLE; /* End in Data1 */
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i++;
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status &=~TD_CTRL_SPD;
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/* no limit on errors on final packet , 0 bytes of data */
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usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status | TD_CTRL_IOC, destination | (UHCI_NULL_DATA_SIZE << 21),0,(unsigned long)dev);
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tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]); /* queue status td */
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/* usb_show_td(i+1);*/
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USB_UHCI_PRINTF("uhci_submit_control end (%d tmp_tds used)\n",i);
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/* first mark the control QH element terminated */
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qh_cntrl.element=0xffffffffL;
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/* set qh active */
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qh_cntrl.dev_ptr=(unsigned long)dev;
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/* fill in tmp_td_chain */
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qh_cntrl.element=swap_32((unsigned long)&tmp_td[0]);
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return 0;
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}
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/*-------------------------------------------------------------------
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* Prepare TDs for bulk transfers.
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*/
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int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len)
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{
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unsigned long destination, status,info;
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unsigned long dataptr;
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int maxsze = usb_maxpacket(dev, pipe);
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int len;
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int i=0;
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if(transfer_len < 0) {
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printf("Negative transfer length in submit_bulk\n");
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return -1;
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}
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if (!maxsze)
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return -1;
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/* The "pipe" thing contains the destination in bits 8--18. */
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destination = (pipe & PIPE_DEVEP_MASK) | usb_packetid (pipe);
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/* 3 errors */
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status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
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/* ((urb->transfer_flags & USB_DISABLE_SPD) ? 0 : TD_CTRL_SPD) | (3 << 27); */
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/* Build the TDs for the bulk request */
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len = transfer_len;
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dataptr = (unsigned long)buffer;
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do {
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int pktsze = len;
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if (pktsze > maxsze)
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pktsze = maxsze;
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/* pktsze bytes of data */
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info = destination | (((pktsze - 1)&UHCI_NULL_DATA_SIZE) << 21) |
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(usb_gettoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe)) << TD_TOKEN_TOGGLE);
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if((len-pktsze)==0)
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status |= TD_CTRL_IOC; /* last one generates INT */
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usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, info,dataptr,(unsigned long)dev); /* Status, pktsze bytes of data */
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if(i>0)
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tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
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i++;
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dataptr += pktsze;
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len -= pktsze;
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usb_dotoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe));
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} while (len > 0);
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/* first mark the bulk QH element terminated */
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qh_bulk.element=0xffffffffL;
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/* set qh active */
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qh_bulk.dev_ptr=(unsigned long)dev;
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/* fill in tmp_td_chain */
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qh_bulk.element=swap_32((unsigned long)&tmp_td[0]);
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return 0;
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}
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/* search a free interrupt td
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*/
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uhci_td_t *uhci_alloc_int_td(void)
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{
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int i;
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for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
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if(tmp_int_td[i].dev_ptr==0) /* no device assigned -> free TD */
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return &tmp_int_td[i];
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}
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return NULL;
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}
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#if 0
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void uhci_show_temp_int_td(void)
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{
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int i;
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for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
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if((tmp_int_td[i].dev_ptr&0x01)!=0x1L) /* no device assigned -> free TD */
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printf("temp_td %d is assigned to dev %lx\n",i,tmp_int_td[i].dev_ptr);
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}
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printf("all others temp_tds are free\n");
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}
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#endif
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/*-------------------------------------------------------------------
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* submits USB interrupt (ie. polling ;-)
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*/
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int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len, int interval)
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{
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int nint, n;
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unsigned long status, destination;
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unsigned long info,tmp;
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uhci_td_t *mytd;
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if (interval < 0 || interval >= 256)
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return -1;
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if (interval == 0)
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nint = 0;
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else {
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for (nint = 0, n = 1; nint <= 8; nint++, n += n) /* round interval down to 2^n */
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{
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if(interval < n) {
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interval = n / 2;
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break;
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}
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}
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nint--;
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}
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USB_UHCI_PRINTF("Rounded interval to %i, chain %i\n", interval, nint);
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mytd=uhci_alloc_int_td();
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if(mytd==NULL) {
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printf("No free INT TDs found\n");
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return -1;
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}
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status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | TD_CTRL_IOC | (3 << 27);
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/* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD) | (3 << 27);
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*/
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destination =(pipe & PIPE_DEVEP_MASK) | usb_packetid (pipe) | (((transfer_len - 1) & 0x7ff) << 21);
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info = destination | (usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)) << TD_TOKEN_TOGGLE);
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tmp = swap_32(td_int[nint].link);
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usb_fill_td(mytd,tmp,status, info,(unsigned long)buffer,(unsigned long)dev);
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/* Link it */
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tmp = swap_32((unsigned long)mytd);
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td_int[nint].link=tmp;
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usb_dotoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe));
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return 0;
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}
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/**********************************************************************
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* Low Level functions
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*/
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void reset_hc(void)
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{
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/* Global reset for 100ms */
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out16r( usb_base_addr + USBPORTSC1,0x0204);
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out16r( usb_base_addr + USBPORTSC2,0x0204);
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out16r( usb_base_addr + USBCMD,USBCMD_GRESET | USBCMD_RS);
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/* Turn off all interrupts */
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out16r(usb_base_addr + USBINTR,0);
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wait_ms(50);
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out16r( usb_base_addr + USBCMD,0);
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wait_ms(10);
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}
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void start_hc(void)
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{
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int timeout = 1000;
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while(in16r(usb_base_addr + USBCMD) & USBCMD_HCRESET) {
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if (!--timeout) {
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printf("USBCMD_HCRESET timed out!\n");
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break;
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}
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}
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/* Turn on all interrupts */
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out16r(usb_base_addr + USBINTR,USBINTR_TIMEOUT | USBINTR_RESUME | USBINTR_IOC | USBINTR_SP);
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/* Start at frame 0 */
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out16r(usb_base_addr + USBFRNUM,0);
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/* set Framebuffer base address */
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out32r(usb_base_addr+USBFLBASEADD,(unsigned long)&framelist);
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/* Run and mark it configured with a 64-byte max packet */
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out16r(usb_base_addr + USBCMD,USBCMD_RS | USBCMD_CF | USBCMD_MAXP);
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}
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|
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/* Initialize the skeleton
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*/
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void usb_init_skel(void)
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{
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unsigned long temp;
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int n;
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for(n=0;n<USB_MAX_TEMP_INT_TD;n++)
|
|
tmp_int_td[n].dev_ptr=0L; /* no devices connected */
|
|
/* last td */
|
|
usb_fill_td(&td_last,UHCI_PTR_TERM,TD_CTRL_IOC ,0,0,0L);
|
|
/* usb_fill_td(&td_last,UHCI_PTR_TERM,0,0,0); */
|
|
/* End Queue Header */
|
|
usb_fill_qh(&qh_end,UHCI_PTR_TERM,(unsigned long)&td_last);
|
|
/* Bulk Queue Header */
|
|
temp=(unsigned long)&qh_end;
|
|
usb_fill_qh(&qh_bulk,temp | UHCI_PTR_QH,UHCI_PTR_TERM);
|
|
/* Control Queue Header */
|
|
temp=(unsigned long)&qh_bulk;
|
|
usb_fill_qh(&qh_cntrl, temp | UHCI_PTR_QH,UHCI_PTR_TERM);
|
|
/* 1ms Interrupt td */
|
|
temp=(unsigned long)&qh_cntrl;
|
|
usb_fill_td(&td_int[0],temp | UHCI_PTR_QH,0,0,0,0L);
|
|
temp=(unsigned long)&td_int[0];
|
|
for(n=1; n<8; n++)
|
|
usb_fill_td(&td_int[n],temp,0,0,0,0L);
|
|
for (n = 0; n < 1024; n++) {
|
|
/* link all framelist pointers to one of the interrupts */
|
|
int m, o;
|
|
if ((n&127)==127)
|
|
framelist[n]= swap_32((unsigned long)&td_int[0]);
|
|
else
|
|
for (o = 1, m = 2; m <= 128; o++, m += m)
|
|
if ((n & (m - 1)) == ((m - 1) / 2))
|
|
framelist[n]= swap_32((unsigned long)&td_int[o]);
|
|
}
|
|
}
|
|
|
|
/* check the common skeleton for completed transfers, and update the status
|
|
* of the "connected" device. Called from the IRQ routine.
|
|
*/
|
|
void usb_check_skel(void)
|
|
{
|
|
struct usb_device *dev;
|
|
/* start with the control qh */
|
|
if(qh_cntrl.dev_ptr!=0) /* it's a device assigned check if this caused IRQ */
|
|
{
|
|
dev=(struct usb_device *)qh_cntrl.dev_ptr;
|
|
usb_get_td_status(&tmp_td[0],dev); /* update status */
|
|
if(!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */
|
|
qh_cntrl.dev_ptr=0;
|
|
}
|
|
}
|
|
/* now process the bulk */
|
|
if(qh_bulk.dev_ptr!=0) /* it's a device assigned check if this caused IRQ */
|
|
{
|
|
dev=(struct usb_device *)qh_bulk.dev_ptr;
|
|
usb_get_td_status(&tmp_td[0],dev); /* update status */
|
|
if(!(dev->status & USB_ST_NOT_PROC)) { /* is not active anymore, disconnect devices */
|
|
qh_bulk.dev_ptr=0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* check the interrupt chain, ubdate the status of the appropriate device,
|
|
* call the appropriate irqhandler and reactivate the TD if the irqhandler
|
|
* returns with 1
|
|
*/
|
|
void usb_check_int_chain(void)
|
|
{
|
|
int i,res;
|
|
unsigned long link,status;
|
|
struct usb_device *dev;
|
|
uhci_td_t *td,*prevtd;
|
|
|
|
for(i=0;i<8;i++) {
|
|
prevtd=&td_int[i]; /* the first previous td is the skeleton td */
|
|
link=swap_32(td_int[i].link) & 0xfffffff0; /* next in chain */
|
|
td=(uhci_td_t *)link; /* assign it */
|
|
/* all interrupt TDs are finally linked to the td_int[0].
|
|
* so we process all until we find the td_int[0].
|
|
* if int0 chain points to a QH, we're also done
|
|
*/
|
|
while(((i>0) && (link != (unsigned long)&td_int[0])) ||
|
|
((i==0) && !(swap_32(td->link) & UHCI_PTR_QH)))
|
|
{
|
|
/* check if a device is assigned with this td */
|
|
status=swap_32(td->status);
|
|
if((td->dev_ptr!=0L) && !(status & TD_CTRL_ACTIVE)) {
|
|
/* td is not active and a device is assigned -> call irqhandler */
|
|
dev=(struct usb_device *)td->dev_ptr;
|
|
dev->irq_act_len=((status & 0x7FF)==0x7FF) ? 0 : (status & 0x7FF) + 1; /* transfered length */
|
|
dev->irq_status=usb_uhci_td_stat(status); /* get status */
|
|
res=dev->irq_handle(dev); /* call irqhandler */
|
|
if(res==1) {
|
|
/* reactivate */
|
|
status|=TD_CTRL_ACTIVE;
|
|
td->status=swap_32(status);
|
|
prevtd=td; /* previous td = this td */
|
|
}
|
|
else {
|
|
prevtd->link=td->link; /* link previous td directly to the nex td -> unlinked */
|
|
/* remove device pointer */
|
|
td->dev_ptr=0L;
|
|
}
|
|
} /* if we call the irq handler */
|
|
link=swap_32(td->link) & 0xfffffff0; /* next in chain */
|
|
td=(uhci_td_t *)link; /* assign it */
|
|
} /* process all td in this int chain */
|
|
} /* next interrupt chain */
|
|
}
|
|
|
|
|
|
/* usb interrupt service routine.
|
|
*/
|
|
void handle_usb_interrupt(void)
|
|
{
|
|
unsigned short status;
|
|
|
|
/*
|
|
* Read the interrupt status, and write it back to clear the
|
|
* interrupt cause
|
|
*/
|
|
|
|
status = in16r(usb_base_addr + USBSTS);
|
|
|
|
if (!status) /* shared interrupt, not mine */
|
|
return;
|
|
if (status != 1) {
|
|
/* remove host controller halted state */
|
|
if ((status&0x20) && ((in16r(usb_base_addr+USBCMD) && USBCMD_RS)==0)) {
|
|
out16r(usb_base_addr + USBCMD, USBCMD_RS | in16r(usb_base_addr + USBCMD));
|
|
}
|
|
}
|
|
usb_check_int_chain(); /* call interrupt handlers for int tds */
|
|
usb_check_skel(); /* call completion handler for common transfer routines */
|
|
out16r(usb_base_addr+USBSTS,status);
|
|
}
|
|
|
|
|
|
/* init uhci
|
|
*/
|
|
int usb_lowlevel_init(void)
|
|
{
|
|
unsigned char temp;
|
|
int busdevfunc;
|
|
|
|
busdevfunc=pci_find_device(USB_UHCI_VEND_ID,USB_UHCI_DEV_ID,0); /* get PCI Device ID */
|
|
if(busdevfunc==-1) {
|
|
printf("Error USB UHCI (%04X,%04X) not found\n",USB_UHCI_VEND_ID,USB_UHCI_DEV_ID);
|
|
return -1;
|
|
}
|
|
pci_read_config_byte(busdevfunc,PCI_INTERRUPT_LINE,&temp);
|
|
irqvec = temp;
|
|
irq_free_handler(irqvec);
|
|
USB_UHCI_PRINTF("Interrupt Line = %d, is %d\n",irqvec);
|
|
pci_read_config_byte(busdevfunc,PCI_INTERRUPT_PIN,&temp);
|
|
USB_UHCI_PRINTF("Interrupt Pin = %ld\n",temp);
|
|
pci_read_config_dword(busdevfunc,PCI_BASE_ADDRESS_4,&usb_base_addr);
|
|
USB_UHCI_PRINTF("IO Base Address = 0x%lx\n",usb_base_addr);
|
|
usb_base_addr&=0xFFFFFFF0;
|
|
usb_base_addr+=CFG_ISA_IO_BASE_ADDRESS;
|
|
rh.devnum = 0;
|
|
usb_init_skel();
|
|
reset_hc();
|
|
start_hc();
|
|
irq_install_handler(irqvec, (interrupt_handler_t *)handle_usb_interrupt, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* stop uhci
|
|
*/
|
|
int usb_lowlevel_stop(void)
|
|
{
|
|
if(irqvec==-1)
|
|
return 1;
|
|
irq_free_handler(irqvec);
|
|
reset_hc();
|
|
irqvec=-1;
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************************
|
|
* Virtual Root Hub
|
|
* Since the uhci does not have a real HUB, we simulate one ;-)
|
|
*/
|
|
#undef USB_RH_DEBUG
|
|
|
|
#ifdef USB_RH_DEBUG
|
|
#define USB_RH_PRINTF(fmt,args...) printf (fmt ,##args)
|
|
static void usb_display_wValue(unsigned short wValue,unsigned short wIndex);
|
|
static void usb_display_Req(unsigned short req);
|
|
#else
|
|
#define USB_RH_PRINTF(fmt,args...)
|
|
static void usb_display_wValue(unsigned short wValue,unsigned short wIndex) {}
|
|
static void usb_display_Req(unsigned short req) {}
|
|
#endif
|
|
|
|
static unsigned char root_hub_dev_des[] =
|
|
{
|
|
0x12, /* __u8 bLength; */
|
|
0x01, /* __u8 bDescriptorType; Device */
|
|
0x00, /* __u16 bcdUSB; v1.0 */
|
|
0x01,
|
|
0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */
|
|
0x00, /* __u8 bDeviceSubClass; */
|
|
0x00, /* __u8 bDeviceProtocol; */
|
|
0x08, /* __u8 bMaxPacketSize0; 8 Bytes */
|
|
0x00, /* __u16 idVendor; */
|
|
0x00,
|
|
0x00, /* __u16 idProduct; */
|
|
0x00,
|
|
0x00, /* __u16 bcdDevice; */
|
|
0x00,
|
|
0x01, /* __u8 iManufacturer; */
|
|
0x00, /* __u8 iProduct; */
|
|
0x00, /* __u8 iSerialNumber; */
|
|
0x01 /* __u8 bNumConfigurations; */
|
|
};
|
|
|
|
|
|
/* Configuration descriptor */
|
|
static unsigned char root_hub_config_des[] =
|
|
{
|
|
0x09, /* __u8 bLength; */
|
|
0x02, /* __u8 bDescriptorType; Configuration */
|
|
0x19, /* __u16 wTotalLength; */
|
|
0x00,
|
|
0x01, /* __u8 bNumInterfaces; */
|
|
0x01, /* __u8 bConfigurationValue; */
|
|
0x00, /* __u8 iConfiguration; */
|
|
0x40, /* __u8 bmAttributes;
|
|
Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */
|
|
0x00, /* __u8 MaxPower; */
|
|
|
|
/* interface */
|
|
0x09, /* __u8 if_bLength; */
|
|
0x04, /* __u8 if_bDescriptorType; Interface */
|
|
0x00, /* __u8 if_bInterfaceNumber; */
|
|
0x00, /* __u8 if_bAlternateSetting; */
|
|
0x01, /* __u8 if_bNumEndpoints; */
|
|
0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */
|
|
0x00, /* __u8 if_bInterfaceSubClass; */
|
|
0x00, /* __u8 if_bInterfaceProtocol; */
|
|
0x00, /* __u8 if_iInterface; */
|
|
|
|
/* endpoint */
|
|
0x07, /* __u8 ep_bLength; */
|
|
0x05, /* __u8 ep_bDescriptorType; Endpoint */
|
|
0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */
|
|
0x03, /* __u8 ep_bmAttributes; Interrupt */
|
|
0x08, /* __u16 ep_wMaxPacketSize; 8 Bytes */
|
|
0x00,
|
|
0xff /* __u8 ep_bInterval; 255 ms */
|
|
};
|
|
|
|
|
|
static unsigned char root_hub_hub_des[] =
|
|
{
|
|
0x09, /* __u8 bLength; */
|
|
0x29, /* __u8 bDescriptorType; Hub-descriptor */
|
|
0x02, /* __u8 bNbrPorts; */
|
|
0x00, /* __u16 wHubCharacteristics; */
|
|
0x00,
|
|
0x01, /* __u8 bPwrOn2pwrGood; 2ms */
|
|
0x00, /* __u8 bHubContrCurrent; 0 mA */
|
|
0x00, /* __u8 DeviceRemovable; *** 7 Ports max *** */
|
|
0xff /* __u8 PortPwrCtrlMask; *** 7 ports max *** */
|
|
};
|
|
|
|
static unsigned char root_hub_str_index0[] =
|
|
{
|
|
0x04, /* __u8 bLength; */
|
|
0x03, /* __u8 bDescriptorType; String-descriptor */
|
|
0x09, /* __u8 lang ID */
|
|
0x04, /* __u8 lang ID */
|
|
};
|
|
|
|
static unsigned char root_hub_str_index1[] =
|
|
{
|
|
28, /* __u8 bLength; */
|
|
0x03, /* __u8 bDescriptorType; String-descriptor */
|
|
'U', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'H', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'C', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'I', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
' ', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'R', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'o', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'o', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
't', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
' ', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'H', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'u', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
'b', /* __u8 Unicode */
|
|
0, /* __u8 Unicode */
|
|
};
|
|
|
|
|
|
/*
|
|
* Root Hub Control Pipe (interrupt Pipes are not supported)
|
|
*/
|
|
|
|
|
|
int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len,struct devrequest *cmd)
|
|
{
|
|
void *data = buffer;
|
|
int leni = transfer_len;
|
|
int len = 0;
|
|
int status = 0;
|
|
int stat = 0;
|
|
int i;
|
|
|
|
unsigned short cstatus;
|
|
|
|
unsigned short bmRType_bReq;
|
|
unsigned short wValue;
|
|
unsigned short wIndex;
|
|
unsigned short wLength;
|
|
|
|
if ((pipe & PIPE_INTERRUPT) == PIPE_INTERRUPT) {
|
|
printf("Root-Hub submit IRQ: NOT implemented\n");
|
|
#if 0
|
|
uhci->rh.urb = urb;
|
|
uhci->rh.send = 1;
|
|
uhci->rh.interval = urb->interval;
|
|
rh_init_int_timer (urb);
|
|
#endif
|
|
return 0;
|
|
}
|
|
bmRType_bReq = cmd->requesttype | cmd->request << 8;
|
|
wValue = swap_16(cmd->value);
|
|
wIndex = swap_16(cmd->index);
|
|
wLength = swap_16(cmd->length);
|
|
usb_display_Req(bmRType_bReq);
|
|
for (i = 0; i < 8; i++)
|
|
rh.c_p_r[i] = 0;
|
|
USB_RH_PRINTF("Root-Hub: adr: %2x cmd(%1x): %02x%02x %04x %04x %04x\n",
|
|
dev->devnum, 8, cmd->requesttype,cmd->request, wValue, wIndex, wLength);
|
|
|
|
switch (bmRType_bReq) {
|
|
/* Request Destination:
|
|
without flags: Device,
|
|
RH_INTERFACE: interface,
|
|
RH_ENDPOINT: endpoint,
|
|
RH_CLASS means HUB here,
|
|
RH_OTHER | RH_CLASS almost ever means HUB_PORT here
|
|
*/
|
|
|
|
case RH_GET_STATUS:
|
|
*(unsigned short *) data = swap_16(1);
|
|
len=2;
|
|
break;
|
|
case RH_GET_STATUS | RH_INTERFACE:
|
|
*(unsigned short *) data = swap_16(0);
|
|
len=2;
|
|
break;
|
|
case RH_GET_STATUS | RH_ENDPOINT:
|
|
*(unsigned short *) data = swap_16(0);
|
|
len=2;
|
|
break;
|
|
case RH_GET_STATUS | RH_CLASS:
|
|
*(unsigned long *) data = swap_32(0);
|
|
len=4;
|
|
break; /* hub power ** */
|
|
case RH_GET_STATUS | RH_OTHER | RH_CLASS:
|
|
|
|
status = in16r(usb_base_addr + USBPORTSC1 + 2 * (wIndex - 1));
|
|
cstatus = ((status & USBPORTSC_CSC) >> (1 - 0)) |
|
|
((status & USBPORTSC_PEC) >> (3 - 1)) |
|
|
(rh.c_p_r[wIndex - 1] << (0 + 4));
|
|
status = (status & USBPORTSC_CCS) |
|
|
((status & USBPORTSC_PE) >> (2 - 1)) |
|
|
((status & USBPORTSC_SUSP) >> (12 - 2)) |
|
|
((status & USBPORTSC_PR) >> (9 - 4)) |
|
|
(1 << 8) | /* power on ** */
|
|
((status & USBPORTSC_LSDA) << (-8 + 9));
|
|
|
|
*(unsigned short *) data = swap_16(status);
|
|
*(unsigned short *) (data + 2) = swap_16(cstatus);
|
|
len=4;
|
|
break;
|
|
case RH_CLEAR_FEATURE | RH_ENDPOINT:
|
|
switch (wValue) {
|
|
case (RH_ENDPOINT_STALL):
|
|
len=0;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case RH_CLEAR_FEATURE | RH_CLASS:
|
|
switch (wValue) {
|
|
case (RH_C_HUB_OVER_CURRENT):
|
|
len=0; /* hub power over current ** */
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
|
|
usb_display_wValue(wValue,wIndex);
|
|
switch (wValue) {
|
|
case (RH_PORT_ENABLE):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) & ~USBPORTSC_PE;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_PORT_SUSPEND):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) & ~USBPORTSC_SUSP;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_PORT_POWER):
|
|
len=0; /* port power ** */
|
|
break;
|
|
case (RH_C_PORT_CONNECTION):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) | USBPORTSC_CSC;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_C_PORT_ENABLE):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) | USBPORTSC_PEC;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_C_PORT_SUSPEND):
|
|
/*** WR_RH_PORTSTAT(RH_PS_PSSC); */
|
|
len=0;
|
|
break;
|
|
case (RH_C_PORT_OVER_CURRENT):
|
|
len=0;
|
|
break;
|
|
case (RH_C_PORT_RESET):
|
|
rh.c_p_r[wIndex - 1] = 0;
|
|
len=0;
|
|
break;
|
|
}
|
|
break;
|
|
case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
|
|
usb_display_wValue(wValue,wIndex);
|
|
switch (wValue) {
|
|
case (RH_PORT_SUSPEND):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) | USBPORTSC_SUSP;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_PORT_RESET):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) | USBPORTSC_PR;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
wait_ms(10);
|
|
status = (status & 0xfff5) & ~USBPORTSC_PR;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
udelay(10);
|
|
status = (status & 0xfff5) | USBPORTSC_PE;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
wait_ms(10);
|
|
status = (status & 0xfff5) | 0xa;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
case (RH_PORT_POWER):
|
|
len=0; /* port power ** */
|
|
break;
|
|
case (RH_PORT_ENABLE):
|
|
status = in16r(usb_base_addr+USBPORTSC1+2*(wIndex-1));
|
|
status = (status & 0xfff5) | USBPORTSC_PE;
|
|
out16r(usb_base_addr+USBPORTSC1+2*(wIndex-1),status);
|
|
len=0;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case RH_SET_ADDRESS:
|
|
rh.devnum = wValue;
|
|
len=0;
|
|
break;
|
|
case RH_GET_DESCRIPTOR:
|
|
switch ((wValue & 0xff00) >> 8) {
|
|
case (0x01): /* device descriptor */
|
|
i=sizeof(root_hub_config_des);
|
|
status=i > wLength ? wLength : i;
|
|
len = leni > status ? status : leni;
|
|
memcpy (data, root_hub_dev_des, len);
|
|
break;
|
|
case (0x02): /* configuration descriptor */
|
|
i=sizeof(root_hub_config_des);
|
|
status=i > wLength ? wLength : i;
|
|
len = leni > status ? status : leni;
|
|
memcpy (data, root_hub_config_des, len);
|
|
break;
|
|
case (0x03): /*string descriptors */
|
|
if(wValue==0x0300) {
|
|
i=sizeof(root_hub_str_index0);
|
|
status = i > wLength ? wLength : i;
|
|
len = leni > status ? status : leni;
|
|
memcpy (data, root_hub_str_index0, len);
|
|
break;
|
|
}
|
|
if(wValue==0x0301) {
|
|
i=sizeof(root_hub_str_index1);
|
|
status = i > wLength ? wLength : i;
|
|
len = leni > status ? status : leni;
|
|
memcpy (data, root_hub_str_index1, len);
|
|
break;
|
|
}
|
|
stat = USB_ST_STALLED;
|
|
}
|
|
break;
|
|
|
|
case RH_GET_DESCRIPTOR | RH_CLASS:
|
|
root_hub_hub_des[2] = 2;
|
|
i=sizeof(root_hub_hub_des);
|
|
status= i > wLength ? wLength : i;
|
|
len = leni > status ? status : leni;
|
|
memcpy (data, root_hub_hub_des, len);
|
|
break;
|
|
case RH_GET_CONFIGURATION:
|
|
*(unsigned char *) data = 0x01;
|
|
len = 1;
|
|
break;
|
|
case RH_SET_CONFIGURATION:
|
|
len=0;
|
|
break;
|
|
default:
|
|
stat = USB_ST_STALLED;
|
|
}
|
|
USB_RH_PRINTF("Root-Hub stat %lx port1: %x port2: %x\n\n",stat,
|
|
in16r(usb_base_addr + USBPORTSC1), in16r(usb_base_addr + USBPORTSC2));
|
|
dev->act_len=len;
|
|
dev->status=stat;
|
|
return stat;
|
|
|
|
}
|
|
|
|
/********************************************************************************
|
|
* Some Debug Routines
|
|
*/
|
|
|
|
#ifdef USB_RH_DEBUG
|
|
|
|
static void usb_display_Req(unsigned short req)
|
|
{
|
|
USB_RH_PRINTF("- Root-Hub Request: ");
|
|
switch (req) {
|
|
case RH_GET_STATUS:
|
|
USB_RH_PRINTF("Get Status ");
|
|
break;
|
|
case RH_GET_STATUS | RH_INTERFACE:
|
|
USB_RH_PRINTF("Get Status Interface ");
|
|
break;
|
|
case RH_GET_STATUS | RH_ENDPOINT:
|
|
USB_RH_PRINTF("Get Status Endpoint ");
|
|
break;
|
|
case RH_GET_STATUS | RH_CLASS:
|
|
USB_RH_PRINTF("Get Status Class");
|
|
break; /* hub power ** */
|
|
case RH_GET_STATUS | RH_OTHER | RH_CLASS:
|
|
USB_RH_PRINTF("Get Status Class Others");
|
|
break;
|
|
case RH_CLEAR_FEATURE | RH_ENDPOINT:
|
|
USB_RH_PRINTF("Clear Feature Endpoint ");
|
|
break;
|
|
case RH_CLEAR_FEATURE | RH_CLASS:
|
|
USB_RH_PRINTF("Clear Feature Class ");
|
|
break;
|
|
case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS:
|
|
USB_RH_PRINTF("Clear Feature Other Class ");
|
|
break;
|
|
case RH_SET_FEATURE | RH_OTHER | RH_CLASS:
|
|
USB_RH_PRINTF("Set Feature Other Class ");
|
|
break;
|
|
case RH_SET_ADDRESS:
|
|
USB_RH_PRINTF("Set Address ");
|
|
break;
|
|
case RH_GET_DESCRIPTOR:
|
|
USB_RH_PRINTF("Get Descriptor ");
|
|
break;
|
|
case RH_GET_DESCRIPTOR | RH_CLASS:
|
|
USB_RH_PRINTF("Get Descriptor Class ");
|
|
break;
|
|
case RH_GET_CONFIGURATION:
|
|
USB_RH_PRINTF("Get Configuration ");
|
|
break;
|
|
case RH_SET_CONFIGURATION:
|
|
USB_RH_PRINTF("Get Configuration ");
|
|
break;
|
|
default:
|
|
USB_RH_PRINTF("****UNKNOWN**** 0x%04X ",req);
|
|
}
|
|
USB_RH_PRINTF("\n");
|
|
|
|
}
|
|
|
|
static void usb_display_wValue(unsigned short wValue,unsigned short wIndex)
|
|
{
|
|
switch (wValue) {
|
|
case (RH_PORT_ENABLE):
|
|
USB_RH_PRINTF("Root-Hub: Enable Port %d\n",wIndex);
|
|
break;
|
|
case (RH_PORT_SUSPEND):
|
|
USB_RH_PRINTF("Root-Hub: Suspend Port %d\n",wIndex);
|
|
break;
|
|
case (RH_PORT_POWER):
|
|
USB_RH_PRINTF("Root-Hub: Port Power %d\n",wIndex);
|
|
break;
|
|
case (RH_C_PORT_CONNECTION):
|
|
USB_RH_PRINTF("Root-Hub: C Port Connection Port %d\n",wIndex);
|
|
break;
|
|
case (RH_C_PORT_ENABLE):
|
|
USB_RH_PRINTF("Root-Hub: C Port Enable Port %d\n",wIndex);
|
|
break;
|
|
case (RH_C_PORT_SUSPEND):
|
|
USB_RH_PRINTF("Root-Hub: C Port Suspend Port %d\n",wIndex);
|
|
break;
|
|
case (RH_C_PORT_OVER_CURRENT):
|
|
USB_RH_PRINTF("Root-Hub: C Port Over Current Port %d\n",wIndex);
|
|
break;
|
|
case (RH_C_PORT_RESET):
|
|
USB_RH_PRINTF("Root-Hub: C Port reset Port %d\n",wIndex);
|
|
break;
|
|
default:
|
|
USB_RH_PRINTF("Root-Hub: unknown %x %x\n",wValue,wIndex);
|
|
break;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
#ifdef USB_UHCI_DEBUG
|
|
|
|
static int usb_display_td(uhci_td_t *td)
|
|
{
|
|
unsigned long tmp;
|
|
int valid;
|
|
|
|
printf("TD at %p:\n",td);
|
|
|
|
tmp=swap_32(td->link);
|
|
printf("Link points to 0x%08lX, %s first, %s, %s\n",tmp&0xfffffff0,
|
|
((tmp & 0x4)==0x4) ? "Depth" : "Breath",
|
|
((tmp & 0x2)==0x2) ? "QH" : "TD",
|
|
((tmp & 0x1)==0x1) ? "invalid" : "valid");
|
|
valid=((tmp & 0x1)==0x0);
|
|
tmp=swap_32(td->status);
|
|
printf(" %s %ld Errors %s %s %s \n %s %s %s %s %s %s\n Len 0x%lX\n",
|
|
(((tmp>>29)&0x1)==0x1) ? "SPD Enable" : "SPD Disable",
|
|
((tmp>>28)&0x3),
|
|
(((tmp>>26)&0x1)==0x1) ? "Low Speed" : "Full Speed",
|
|
(((tmp>>25)&0x1)==0x1) ? "ISO " : "",
|
|
(((tmp>>24)&0x1)==0x1) ? "IOC " : "",
|
|
(((tmp>>23)&0x1)==0x1) ? "Active " : "Inactive ",
|
|
(((tmp>>22)&0x1)==0x1) ? "Stalled" : "",
|
|
(((tmp>>21)&0x1)==0x1) ? "Data Buffer Error" : "",
|
|
(((tmp>>20)&0x1)==0x1) ? "Babble" : "",
|
|
(((tmp>>19)&0x1)==0x1) ? "NAK" : "",
|
|
(((tmp>>18)&0x1)==0x1) ? "Bitstuff Error" : "",
|
|
(tmp&0x7ff));
|
|
tmp=swap_32(td->info);
|
|
printf(" MaxLen 0x%lX\n",((tmp>>21)&0x7FF));
|
|
printf(" %s Endpoint 0x%lX Dev Addr 0x%lX PID 0x%lX\n",((tmp>>19)&0x1)==0x1 ? "TOGGLE" : "",
|
|
((tmp>>15)&0xF),((tmp>>8)&0x7F),tmp&0xFF);
|
|
tmp=swap_32(td->buffer);
|
|
printf(" Buffer 0x%08lX\n",tmp);
|
|
printf(" DEV %08lX\n",td->dev_ptr);
|
|
return valid;
|
|
}
|
|
|
|
|
|
void usb_show_td(int max)
|
|
{
|
|
int i;
|
|
if(max>0) {
|
|
for(i=0;i<max;i++) {
|
|
usb_display_td(&tmp_td[i]);
|
|
}
|
|
}
|
|
else {
|
|
i=0;
|
|
do {
|
|
printf("tmp_td[%d]\n",i);
|
|
}while(usb_display_td(&tmp_td[i++]));
|
|
}
|
|
}
|
|
|
|
|
|
#endif
|
|
#endif /* CONFIG_USB_UHCI */
|
|
|
|
/* EOF */
|