1195 lines
35 KiB
C
1195 lines
35 KiB
C
/*
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* Part of this code has been derived from linux:
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* Universal Host Controller Interface driver for USB (take II).
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*
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* (c) 1999-2001 Georg Acher, acher@in.tum.de (executive slave) (base guitar)
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* Deti Fliegl, deti@fliegl.de (executive slave) (lead voice)
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* Thomas Sailer, sailer@ife.ee.ethz.ch (chief consultant) (cheer leader)
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* Roman Weissgaerber, weissg@vienna.at (virt root hub) (studio porter)
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* (c) 2000 Yggdrasil Computing, Inc. (port of new PCI interface support
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* from usb-ohci.c by Adam Richter, adam@yggdrasil.com).
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* (C) 2000 David Brownell, david-b@pacbell.net (usb-ohci.c)
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*
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* HW-initalization based on material of
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*
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* (C) Copyright 1999 Linus Torvalds
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* (C) Copyright 1999 Johannes Erdfelt
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* (C) Copyright 1999 Randy Dunlap
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* (C) Copyright 1999 Gregory P. Smith
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*
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*
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* Adapted for U-Boot:
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* (C) Copyright 2001 Denis Peter, MPL AG Switzerland
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* (C) Copyright 2008, Daniel Hellström, daniel@gaisler.com
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* Added AMBA Plug&Play detection of GRUSB, modified interrupt handler.
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* Added cache flushes where needed.
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*
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* SPDX-License-Identifier: GPL-2.0+
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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 Interrupt 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 <ambapp.h>
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#include <asm/leon.h>
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#include <asm/leon3.h>
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#include <asm/processor.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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extern int leon3_snooping_avail;
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/*
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#define out16r(address,data) (*(unsigned short *)(address) = \
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(unsigned short)( \
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(((unsigned short)(data)&0xff)<<8) | \
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(((unsigned short)(data)&0xff00)>>8) \
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))
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*/
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#define out16r(address,data) _out16r((unsigned int)(address), (unsigned short)(data))
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void _out16r(unsigned int address, unsigned short data)
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{
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unsigned short val = (unsigned short)((((unsigned short)(data) & 0xff)
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<< 8) | (((unsigned short)(data)
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& 0xff00) >> 8));
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#ifdef UHCI_DEBUG_REGS
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printf("out16r(0x%lx,0x%04x = 0x%04x)\n", address, val, data);
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#endif
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*(unsigned short *)(address) = val;
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}
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#define out32r(address,data) _out32r((unsigned int)(address), (unsigned int)(data))
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void _out32r(unsigned int address, unsigned int data)
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{
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unsigned int val = (unsigned int)((((unsigned int)(data) & 0x000000ff)
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<< 24) | (((unsigned int)(data) &
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0x0000ff00) << 8) |
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(((unsigned int)(data) & 0x00ff0000)
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>> 8) | (((unsigned int)(data) &
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0xff000000) >> 24));
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#ifdef UHCI_DEBUG_REGS
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printf("out32r(0x%lx,0x%lx = 0x%lx)\n", address, val, data);
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#endif
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*(unsigned int *)address = val;
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}
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#define in16r(address) _in16r((unsigned int)(address))
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unsigned short _in16r(unsigned int address)
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{
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unsigned short val = sparc_load_reg_cachemiss_word(address);
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val = ((val << 8) & 0xff00) | ((val >> 8) & 0xff);
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#ifdef UHCI_DEBUG_REGS
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printf("in16r(0x%lx): 0x%04x\n", address, val);
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#endif
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return val;
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}
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#define in32r(address) _in32r((unsigned int)(address))
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unsigned int _in32r(unsigned int address)
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{
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unsigned int val = sparc_load_reg_cachemiss(address);
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val =
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((val << 24) & 0xff000000) | ((val << 8) & 0xff0000) | ((val >> 8) &
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0xff00) |
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((val >> 24) & 0xff);
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#ifdef UHCI_DEBUG_REGS
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printf("in32r(0x%lx): 0x%08x\n", address, val);
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#endif
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return val;
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}
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#define READ32(address) sparc_load_reg_cachemiss((unsigned int)(address))
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/*#define USB_UHCI_DEBUG*/
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#undef USB_UHCI_DEBUG
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void usb_show_td(int max);
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#ifdef USB_UHCI_DEBUG
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void grusb_show_regs(void);
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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 grusb_irq = -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] __attribute__ ((aligned(16))); /* Interrupt Transfer descriptors */
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static uhci_qh_t qh_cntrl __attribute__ ((aligned(16))); /* control Queue Head */
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static uhci_qh_t qh_bulk __attribute__ ((aligned(16))); /* bulk Queue Head */
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static uhci_qh_t qh_end __attribute__ ((aligned(16))); /* end Queue Head */
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static uhci_td_t td_last __attribute__ ((aligned(16))); /* 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] __attribute__ ((aligned(16))); /* temporary bulk/control td's */
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static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD] __attribute__ ((aligned(16))); /* 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,
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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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if ((info & UHCI_PID) == 0)
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info |= USB_PID_OUT;
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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)READ32(&mytd->status));
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stat = usb_uhci_td_stat(temp);
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info = swap_32((unsigned long)READ32(&mytd->info));
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if (((info & 0xff) != USB_PID_SETUP) && (((info >> 21) & 0x7ff) != 0x7ff) && (temp & 0x7FF) != 0x7ff) { /* 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)READ32(&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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int dummy(void)
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{
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USB_UHCI_PRINTF("DUMMY\n");
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return 0;
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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
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("uhci_submit_control_urb: pipesize for pipe %lx is zero\n",
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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,
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setup);
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}
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USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n",
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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),
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(unsigned long)setup, (unsigned long)dev);
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#ifdef DEBUG_EXTRA
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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 =
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(pipe & PIPE_DEVEP_MASK) | ((pipe & USB_DIR_IN) ==
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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,
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destination | (UHCI_NULL_DATA_SIZE << 21), 0,
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(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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dummy();
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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,
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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 =
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destination | (((pktsze - 1) & UHCI_NULL_DATA_SIZE) << 21) |
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(usb_gettoggle
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(dev, usb_pipeendpoint(pipe),
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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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|
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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,
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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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if (interval < n) {
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interval = n / 2;
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break;
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}
|
|
}
|
|
nint--;
|
|
}
|
|
|
|
USB_UHCI_PRINTF("Rounded interval to %i, chain %i\n", interval, nint);
|
|
mytd = uhci_alloc_int_td();
|
|
if (mytd == NULL) {
|
|
printf("No free INT TDs found\n");
|
|
return -1;
|
|
}
|
|
status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | TD_CTRL_IOC | (3 << 27);
|
|
/* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD) | (3 << 27);
|
|
*/
|
|
|
|
destination =
|
|
(pipe & PIPE_DEVEP_MASK) | usb_packetid(pipe) |
|
|
(((transfer_len - 1) & 0x7ff) << 21);
|
|
|
|
info =
|
|
destination |
|
|
(usb_gettoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)) <<
|
|
TD_TOKEN_TOGGLE);
|
|
tmp = swap_32(td_int[nint].link);
|
|
usb_fill_td(mytd, tmp, status, info, (unsigned long)buffer,
|
|
(unsigned long)dev);
|
|
/* Link it */
|
|
tmp = swap_32((unsigned long)mytd);
|
|
td_int[nint].link = tmp;
|
|
|
|
usb_dotoggle(dev, usb_pipeendpoint(pipe), usb_pipeout(pipe));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**********************************************************************
|
|
* Low Level functions
|
|
*/
|
|
|
|
void reset_hc(void)
|
|
{
|
|
|
|
/* Global reset for 100ms */
|
|
out16r(usb_base_addr + USBPORTSC1, 0x0204);
|
|
out16r(usb_base_addr + USBPORTSC2, 0x0204);
|
|
out16r(usb_base_addr + USBCMD, USBCMD_GRESET | USBCMD_RS);
|
|
/* Turn off all interrupts */
|
|
out16r(usb_base_addr + USBINTR, 0);
|
|
mdelay(50);
|
|
out16r(usb_base_addr + USBCMD, 0);
|
|
mdelay(10);
|
|
}
|
|
|
|
void start_hc(void)
|
|
{
|
|
int timeout = 1000;
|
|
|
|
while (in16r(usb_base_addr + USBCMD) & USBCMD_HCRESET) {
|
|
if (!--timeout) {
|
|
printf("USBCMD_HCRESET timed out!\n");
|
|
break;
|
|
}
|
|
}
|
|
/* Turn on all interrupts */
|
|
out16r(usb_base_addr + USBINTR,
|
|
USBINTR_TIMEOUT | USBINTR_RESUME | USBINTR_IOC | USBINTR_SP);
|
|
/* Start at frame 0 */
|
|
out16r(usb_base_addr + USBFRNUM, 0);
|
|
/* set Framebuffer base address */
|
|
out32r(usb_base_addr + USBFLBASEADD, (unsigned long)&framelist);
|
|
/* Run and mark it configured with a 64-byte max packet */
|
|
out16r(usb_base_addr + USBCMD, USBCMD_RS | USBCMD_CF | USBCMD_MAXP);
|
|
}
|
|
|
|
/* Initialize the skeleton
|
|
*/
|
|
void usb_init_skel(void)
|
|
{
|
|
unsigned long temp;
|
|
int n;
|
|
|
|
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, USB_PID_OUT, 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, USB_PID_OUT, 0, 0L);
|
|
temp = (unsigned long)&td_int[0];
|
|
for (n = 1; n < 8; n++)
|
|
usb_fill_td(&td_int[n], temp, 0, USB_PID_OUT, 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;
|
|
/* Flush cache now that hardware updated DATA and TDs/QHs */
|
|
if (!leon3_snooping_avail)
|
|
sparc_dcache_flush_all();
|
|
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;
|
|
/* Flush cache now that hardware updated DATA and TDs/QHs */
|
|
if (!leon3_snooping_avail)
|
|
sparc_dcache_flush_all();
|
|
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(READ32(&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(READ32(&td->link)) & UHCI_PTR_QH))) {
|
|
/* check if a device is assigned with this td */
|
|
status = swap_32(READ32(&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 = READ32(&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(READ32(&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;
|
|
static int error = 0;
|
|
|
|
/*
|
|
* 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 & (USBSTS_HCPE | USBSTS_HCH)) ==
|
|
(USBSTS_HCPE | USBSTS_HCH)) {
|
|
/* Stop due to bug in driver, or hardware */
|
|
out16r(usb_base_addr + USBSTS, status);
|
|
out16r(usb_base_addr + USBCMD,
|
|
USBCMD_HCRESET | USBCMD_GRESET);
|
|
printf
|
|
("GRUSB: HW detected error(s) in USB Descriptors (STS: 0x%x)\n",
|
|
status);
|
|
usb_show_td(8);
|
|
return;
|
|
} else if ((status & 0x20)
|
|
&& ((in16r(usb_base_addr + USBCMD) & USBCMD_RS) ==
|
|
0)) {
|
|
if (error < 10) {
|
|
out16r(usb_base_addr + USBCMD,
|
|
USBCMD_RS | in16r(usb_base_addr +
|
|
USBCMD));
|
|
error++;
|
|
}
|
|
} else
|
|
error = 0;
|
|
}
|
|
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(int index, enum usb_init_type init, void **controller)
|
|
{
|
|
unsigned char temp;
|
|
ambapp_ahbdev ahbdev;
|
|
|
|
/* Find GRUSB core using AMBA Plug&Play information */
|
|
if (ambapp_ahbslv_first(VENDOR_GAISLER, GAISLER_UHCI, &ahbdev) != 1) {
|
|
printf("USB UHCI: Failed to find GRUSB controller\n");
|
|
return -1;
|
|
}
|
|
usb_base_addr = ahbdev.address[0];
|
|
grusb_irq = ahbdev.irq;
|
|
/*
|
|
usb_base_addr = 0xfffa0000;
|
|
grusb_irq = 10;
|
|
*/
|
|
#ifdef USB_UHCI_DEBUG
|
|
grusb_show_regs();
|
|
#endif
|
|
memset(td_int, 0, sizeof(td_int));
|
|
memset(tmp_td, 0, sizeof(tmp_td));
|
|
memset(tmp_int_td, 0, sizeof(tmp_int_td));
|
|
memset(&qh_cntrl, 0, sizeof(qh_cntrl));
|
|
memset(&qh_end, 0, sizeof(qh_end));
|
|
memset(&td_last, 0, sizeof(td_last));
|
|
|
|
irq_free_handler(grusb_irq);
|
|
USB_UHCI_PRINTF("GRUSB: at 0x%lx irq %d\n", usb_base_addr, grusb_irq);
|
|
rh.devnum = 0;
|
|
usb_init_skel();
|
|
reset_hc();
|
|
start_hc();
|
|
irq_install_handler(grusb_irq,
|
|
(interrupt_handler_t *) handle_usb_interrupt, NULL);
|
|
return 0;
|
|
}
|
|
|
|
/* stop uhci
|
|
*/
|
|
int usb_lowlevel_stop(int index)
|
|
{
|
|
if (grusb_irq == -1)
|
|
return 1;
|
|
irq_free_handler(grusb_irq);
|
|
reset_hc();
|
|
grusb_irq = -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
|
|
|
|
#define WANT_USB_ROOT_HUB_HUB_DES
|
|
#include <usbroothubdes.h>
|
|
#undef WANT_USB_ROOT_HUB_HUB_DES
|
|
|
|
/*
|
|
* 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 (usb_pipeint(pipe)) {
|
|
printf("Root-Hub submit IRQ: NOT implemented\n");
|
|
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);
|
|
mdelay(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);
|
|
mdelay(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(READ32(&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(READ32(&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(READ32(&td->info));
|
|
printf(" MaxLen 0x%lX\n", ((tmp >> 21) & 0x7FF));
|
|
printf(" %sEndpoint 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(READ32(&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++]));
|
|
}
|
|
}
|
|
|
|
void grusb_show_regs(void)
|
|
{
|
|
unsigned int tmp;
|
|
|
|
tmp = in16r(usb_base_addr + USBCMD);
|
|
printf(" USBCMD: 0x%04x\n", tmp);
|
|
tmp = in16r(usb_base_addr + USBSTS);
|
|
printf(" USBSTS: 0x%04x\n", tmp);
|
|
tmp = in16r(usb_base_addr + USBINTR);
|
|
printf(" USBINTR: 0x%04x\n", tmp);
|
|
tmp = in16r(usb_base_addr + USBFRNUM);
|
|
printf(" FRNUM: 0x%04x\n", tmp);
|
|
tmp = in32r(usb_base_addr + USBFLBASEADD);
|
|
printf(" FLBASEADD: 0x%08x\n", tmp);
|
|
tmp = in16r(usb_base_addr + USBSOF);
|
|
printf(" SOFMOD: 0x%04x\n", tmp);
|
|
tmp = in16r(usb_base_addr + USBPORTSC1);
|
|
printf(" PORTSC1: 0x%04x\n", tmp);
|
|
}
|
|
|
|
/*#endif*/
|
|
#endif /* CONFIG_USB_UHCI */
|
|
|
|
/* EOF */
|