summaryrefslogtreecommitdiff
path: root/board/MAI/AmigaOneG3SE/usb_uhci.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/MAI/AmigaOneG3SE/usb_uhci.c')
-rw-r--r--board/MAI/AmigaOneG3SE/usb_uhci.c1178
1 files changed, 0 insertions, 1178 deletions
diff --git a/board/MAI/AmigaOneG3SE/usb_uhci.c b/board/MAI/AmigaOneG3SE/usb_uhci.c
deleted file mode 100644
index 857ab3e..0000000
--- a/board/MAI/AmigaOneG3SE/usb_uhci.c
+++ /dev/null
@@ -1,1178 +0,0 @@
-/*
- * (C) Copyright 2001
- * Denis Peter, MPL AG Switzerland
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- *
- * Note: Part of this code has been derived from linux
- *
- */
-
-/**********************************************************************
- * How it works:
- * -------------
- * The framelist / Transfer descriptor / Queue Heads are similar like
- * in the linux usb_uhci.c.
- *
- * During initialization, the following skeleton is allocated in init_skel:
- *
- * framespecific | common chain
- *
- * framelist[]
- * [ 0 ]-----> TD ---------\
- * [ 1 ]-----> TD ----------> TD ------> QH -------> QH -------> QH ---> NULL
- * ... TD ---------/
- * [1023]-----> TD --------/
- *
- * ^^ ^^ ^^ ^^ ^^
- * 7 TDs for 1 TD for Start of Start of End Chain
- * INT (2-128ms) 1ms-INT CTRL Chain BULK Chain
- *
- *
- * Since this is a bootloader, the isochronous transfer descriptor have been removed.
- *
- * Interrupt Transfers.
- * --------------------
- * For Interupt transfers USB_MAX_TEMP_INT_TD Transfer descriptor are available. They
- * will be inserted after the appropriate (depending the interval setting) skeleton TD.
- * If an interrupt has been detected the dev->irqhandler is called. The status and number
- * of transfered bytes is stored in dev->irq_status resp. dev->irq_act_len. If the
- * dev->irqhandler returns 0, the interrupt TD is removed and disabled. If an 1 is returned,
- * the interrupt TD will be reactivated.
- *
- * Control Transfers
- * -----------------
- * Control Transfers are issued by filling the tmp_td with the appropriate data and connect
- * them to the qh_cntrl queue header. Before other control/bulk transfers can be issued,
- * the programm has to wait for completion. This does not allows asynchronous data transfer.
- *
- * Bulk Transfers
- * --------------
- * Bulk Transfers are issued by filling the tmp_td with the appropriate data and connect
- * them to the qh_bulk queue header. Before other control/bulk transfers can be issued,
- * the programm has to wait for completion. This does not allows asynchronous data transfer.
- *
- *
- */
-
-#include <common.h>
-#include <pci.h>
-
-#ifdef CONFIG_USB_UHCI
-
-#include <usb.h>
-#include "usb_uhci.h"
-
-#define USB_MAX_TEMP_TD 128 /* number of temporary TDs for bulk and control transfers */
-#define USB_MAX_TEMP_INT_TD 32 /* number of temporary TDs for Interrupt transfers */
-
-
-/*#define USB_UHCI_DEBUG */
-
-#ifdef USB_UHCI_DEBUG
-#define USB_UHCI_PRINTF(fmt,args...) printf (fmt ,##args)
-#else
-#define USB_UHCI_PRINTF(fmt,args...)
-#endif
-
-
-static int irqvec = -1; /* irq vector, if -1 uhci is stopped / reseted */
-unsigned int usb_base_addr; /* base address */
-
-static uhci_td_t td_int[8]; /* Interrupt Transfer descriptors */
-static uhci_qh_t qh_cntrl; /* control Queue Head */
-static uhci_qh_t qh_bulk; /* bulk Queue Head */
-static uhci_qh_t qh_end; /* end Queue Head */
-static uhci_td_t td_last; /* last TD (linked with end chain) */
-
-/* temporary tds */
-static uhci_td_t tmp_td[USB_MAX_TEMP_TD]; /* temporary bulk/control td's */
-static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD]; /* temporary interrupt td's */
-
-static unsigned long framelist[1024] __attribute__ ((aligned (0x1000))); /* frame list */
-
-static struct virt_root_hub rh; /* struct for root hub */
-
-/**********************************************************************
- * some forward decleration
- */
-int uhci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
- void *buffer, int transfer_len,struct devrequest *setup);
-
-/* fill a td with the approproiate data. Link, status, info and buffer
- * are used by the USB controller itselfes, dev is used to identify the
- * "connected" device
- */
-void usb_fill_td(uhci_td_t* td,unsigned long link,unsigned long status,
- unsigned long info, unsigned long buffer, unsigned long dev)
-{
- td->link=swap_32(link);
- td->status=swap_32(status);
- td->info=swap_32(info);
- td->buffer=swap_32(buffer);
- td->dev_ptr=dev;
-}
-
-/* fill a qh with the approproiate data. Head and element are used by the USB controller
- * itselfes. As soon as a valid dev_ptr is filled, a td chain is connected to the qh.
- * Please note, that after completion of the td chain, the entry element is removed /
- * marked invalid by the USB controller.
- */
-void usb_fill_qh(uhci_qh_t* qh,unsigned long head,unsigned long element)
-{
- qh->head=swap_32(head);
- qh->element=swap_32(element);
- qh->dev_ptr=0L;
-}
-
-/* get the status of a td->status
- */
-unsigned long usb_uhci_td_stat(unsigned long status)
-{
- unsigned long result=0;
- result |= (status & TD_CTRL_NAK) ? USB_ST_NAK_REC : 0;
- result |= (status & TD_CTRL_STALLED) ? USB_ST_STALLED : 0;
- result |= (status & TD_CTRL_DBUFERR) ? USB_ST_BUF_ERR : 0;
- result |= (status & TD_CTRL_BABBLE) ? USB_ST_BABBLE_DET : 0;
- result |= (status & TD_CTRL_CRCTIMEO) ? USB_ST_CRC_ERR : 0;
- result |= (status & TD_CTRL_BITSTUFF) ? USB_ST_BIT_ERR : 0;
- result |= (status & TD_CTRL_ACTIVE) ? USB_ST_NOT_PROC : 0;
- return result;
-}
-
-/* get the status and the transfered len of a td chain.
- * called from the completion handler
- */
-int usb_get_td_status(uhci_td_t *td,struct usb_device *dev)
-{
- unsigned long temp,info;
- unsigned long stat;
- uhci_td_t *mytd=td;
-
- if(dev->devnum==rh.devnum)
- return 0;
- dev->act_len=0;
- stat=0;
- do {
- temp=swap_32((unsigned long)mytd->status);
- stat=usb_uhci_td_stat(temp);
- info=swap_32((unsigned long)mytd->info);
- if(((info & 0xff)!= USB_PID_SETUP) &&
- (((info >> 21) & 0x7ff)!= 0x7ff) &&
- (temp & 0x7FF)!=0x7ff)
- { /* if not setup and not null data pack */
- dev->act_len+=(temp & 0x7FF) + 1; /* the transfered len is act_len + 1 */
- }
- if(stat) { /* status no ok */
- dev->status=stat;
- return -1;
- }
- temp=swap_32((unsigned long)mytd->link);
- mytd=(uhci_td_t *)(temp & 0xfffffff0);
- }while((temp & 0x1)==0); /* process all TDs */
- dev->status=stat;
- return 0; /* Ok */
-}
-
-
-/*-------------------------------------------------------------------
- * LOW LEVEL STUFF
- * assembles QHs und TDs for control, bulk and iso
- *-------------------------------------------------------------------*/
-
-/* Submits a control message. That is a Setup, Data and Status transfer.
- * Routine does not wait for completion.
- */
-int submit_control_msg(struct usb_device *dev, unsigned long pipe, void *buffer,
- int transfer_len,struct devrequest *setup)
-{
- unsigned long destination, status;
- int maxsze = usb_maxpacket(dev, pipe);
- unsigned long dataptr;
- int len;
- int pktsze;
- int i=0;
-
- if (!maxsze) {
- USB_UHCI_PRINTF("uhci_submit_control_urb: pipesize for pipe %lx is zero\n", pipe);
- return -1;
- }
- if(((pipe>>8)&0x7f)==rh.devnum) {
- /* this is the root hub -> redirect it */
- return uhci_submit_rh_msg(dev,pipe,buffer,transfer_len,setup);
- }
- USB_UHCI_PRINTF("uhci_submit_control start len %x, maxsize %x\n",transfer_len,maxsze);
- /* The "pipe" thing contains the destination in bits 8--18 */
- destination = (pipe & PIPE_DEVEP_MASK) | USB_PID_SETUP; /* Setup stage */
- /* 3 errors */
- status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
- /* (urb->transfer_flags & USB_DISABLE_SPD ? 0 : TD_CTRL_SPD); */
- /* Build the TD for the control request, try forever, 8 bytes of data */
- usb_fill_td(&tmp_td[i],UHCI_PTR_TERM ,status, destination | (7 << 21),(unsigned long)setup,(unsigned long)dev);
-#if 0
- {
- char *sp=(char *)setup;
- printf("SETUP to pipe %lx: %x %x %x %x %x %x %x %x\n", pipe,
- sp[0],sp[1],sp[2],sp[3],sp[4],sp[5],sp[6],sp[7]);
- }
-#endif
- dataptr = (unsigned long)buffer;
- len=transfer_len;
-
- /* If direction is "send", change the frame from SETUP (0x2D)
- to OUT (0xE1). Else change it from SETUP to IN (0x69). */
- destination = (pipe & PIPE_DEVEP_MASK) | ((pipe & USB_DIR_IN)==0 ? USB_PID_OUT : USB_PID_IN);
- while (len > 0) {
- /* data stage */
- pktsze = len;
- i++;
- if (pktsze > maxsze)
- pktsze = maxsze;
- destination ^= 1 << TD_TOKEN_TOGGLE; /* toggle DATA0/1 */
- usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, destination | ((pktsze - 1) << 21),dataptr,(unsigned long)dev); /* Status, pktsze bytes of data */
- tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
-
- dataptr += pktsze;
- len -= pktsze;
- }
-
- /* Build the final TD for control status */
- /* It's only IN if the pipe is out AND we aren't expecting data */
-
- destination &= ~UHCI_PID;
- if (((pipe & USB_DIR_IN)==0) || (transfer_len == 0))
- destination |= USB_PID_IN;
- else
- destination |= USB_PID_OUT;
- destination |= 1 << TD_TOKEN_TOGGLE; /* End in Data1 */
- i++;
- status &=~TD_CTRL_SPD;
- /* no limit on errors on final packet , 0 bytes of data */
- usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status | TD_CTRL_IOC, destination | (UHCI_NULL_DATA_SIZE << 21),0,(unsigned long)dev);
- tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]); /* queue status td */
- /* usb_show_td(i+1);*/
- USB_UHCI_PRINTF("uhci_submit_control end (%d tmp_tds used)\n",i);
- /* first mark the control QH element terminated */
- qh_cntrl.element=0xffffffffL;
- /* set qh active */
- qh_cntrl.dev_ptr=(unsigned long)dev;
- /* fill in tmp_td_chain */
- qh_cntrl.element=swap_32((unsigned long)&tmp_td[0]);
- return 0;
-}
-
-/*-------------------------------------------------------------------
- * Prepare TDs for bulk transfers.
- */
-int submit_bulk_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len)
-{
- unsigned long destination, status,info;
- unsigned long dataptr;
- int maxsze = usb_maxpacket(dev, pipe);
- int len;
- int i=0;
-
- if(transfer_len < 0) {
- printf("Negative transfer length in submit_bulk\n");
- return -1;
- }
- if (!maxsze)
- return -1;
- /* The "pipe" thing contains the destination in bits 8--18. */
- destination = (pipe & PIPE_DEVEP_MASK) | usb_packetid (pipe);
- /* 3 errors */
- status = (pipe & TD_CTRL_LS) | TD_CTRL_ACTIVE | (3 << 27);
- /* ((urb->transfer_flags & USB_DISABLE_SPD) ? 0 : TD_CTRL_SPD) | (3 << 27); */
- /* Build the TDs for the bulk request */
- len = transfer_len;
- dataptr = (unsigned long)buffer;
- do {
- int pktsze = len;
- if (pktsze > maxsze)
- pktsze = maxsze;
- /* pktsze bytes of data */
- info = destination | (((pktsze - 1)&UHCI_NULL_DATA_SIZE) << 21) |
- (usb_gettoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe)) << TD_TOKEN_TOGGLE);
-
- if((len-pktsze)==0)
- status |= TD_CTRL_IOC; /* last one generates INT */
-
- usb_fill_td(&tmp_td[i],UHCI_PTR_TERM, status, info,dataptr,(unsigned long)dev); /* Status, pktsze bytes of data */
- if(i>0)
- tmp_td[i-1].link=swap_32((unsigned long)&tmp_td[i]);
- i++;
- dataptr += pktsze;
- len -= pktsze;
- usb_dotoggle (dev, usb_pipeendpoint (pipe), usb_pipeout (pipe));
- } while (len > 0);
- /* first mark the bulk QH element terminated */
- qh_bulk.element=0xffffffffL;
- /* set qh active */
- qh_bulk.dev_ptr=(unsigned long)dev;
- /* fill in tmp_td_chain */
- qh_bulk.element=swap_32((unsigned long)&tmp_td[0]);
- return 0;
-}
-
-
-/* search a free interrupt td
- */
-uhci_td_t *uhci_alloc_int_td(void)
-{
- int i;
- for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
- if(tmp_int_td[i].dev_ptr==0) /* no device assigned -> free TD */
- return &tmp_int_td[i];
- }
- return NULL;
-}
-
-#if 0
-void uhci_show_temp_int_td(void)
-{
- int i;
- for(i=0;i<USB_MAX_TEMP_INT_TD;i++) {
- if((tmp_int_td[i].dev_ptr&0x01)!=0x1L) /* no device assigned -> free TD */
- printf("temp_td %d is assigned to dev %lx\n",i,tmp_int_td[i].dev_ptr);
- }
- printf("all others temp_tds are free\n");
-}
-#endif
-/*-------------------------------------------------------------------
- * submits USB interrupt (ie. polling ;-)
- */
-int submit_int_msg(struct usb_device *dev, unsigned long pipe, void *buffer,int transfer_len, int interval)
-{
- int nint, n;
- unsigned long status, destination;
- unsigned long info,tmp;
- uhci_td_t *mytd;
- if (interval < 0 || interval >= 256)
- return -1;
-
- if (interval == 0)
- nint = 0;
- else {
- for (nint = 0, n = 1; nint <= 8; nint++, n += n) /* round interval down to 2^n */
- {
- if(interval < n) {
- interval = n / 2;
- break;
- }
- }
- 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);
- wait_ms(50);
- out16r( usb_base_addr + USBCMD,0);
- wait_ms(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 ,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;
-/*
- * HJF - configure IRQ and base from variables optionally.
- */
- char *s;
-
-
- 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;
- }
-
-#if 1
- s = getenv("usb_irq");
- if (s)
- {
- temp = atoi(s);
- pci_write_config_byte(busdevfunc, PCI_INTERRUPT_LINE, temp);
- }
- else
-#endif
- pci_read_config_byte(busdevfunc,PCI_INTERRUPT_LINE,&temp);
-
- s = getenv("usb_base");
- if (s)
- {
- unsigned long temp2;
- temp2 = atoi(s);
- pci_write_config_dword(busdevfunc, PCI_BASE_ADDRESS_4, temp2|0x01);
- }
-
- irqvec = temp;
- irq_free_handler(irqvec);
- USB_UHCI_PRINTF("Interrupt Line = %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+=CONFIG_SYS_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);
- irq_install_handler(0, (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);
- irq_free_handler(0);
- 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 (usb_pipeint(pipe)) {
- 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 */