diff options
Diffstat (limited to 'board/mpl/common/usb_uhci.c')
| -rw-r--r-- | board/mpl/common/usb_uhci.c | 1042 |
1 files changed, 0 insertions, 1042 deletions
diff --git a/board/mpl/common/usb_uhci.c b/board/mpl/common/usb_uhci.c deleted file mode 100644 index 8399407631..0000000000 --- a/board/mpl/common/usb_uhci.c +++ /dev/null @@ -1,1042 +0,0 @@ -/* - * Part of this code has been derived from linux: - * Universal Host Controller Interface driver for USB (take II). - * - * (c) 1999-2001 Georg Acher, acher@in.tum.de (executive slave) (base guitar) - * Deti Fliegl, deti@fliegl.de (executive slave) (lead voice) - * Thomas Sailer, sailer@ife.ee.ethz.ch (chief consultant) (cheer leader) - * Roman Weissgaerber, weissg@vienna.at (virt root hub) (studio porter) - * (c) 2000 Yggdrasil Computing, Inc. (port of new PCI interface support - * from usb-ohci.c by Adam Richter, adam@yggdrasil.com). - * (C) 2000 David Brownell, david-b@pacbell.net (usb-ohci.c) - * - * HW-initalization based on material of - * - * (C) Copyright 1999 Linus Torvalds - * (C) Copyright 1999 Johannes Erdfelt - * (C) Copyright 1999 Randy Dunlap - * (C) Copyright 1999 Gregory P. Smith - * - * - * Adapted for U-Boot: - * (C) Copyright 2001 Denis Peter, MPL AG Switzerland - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/********************************************************************** - * 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 Interrupt 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 transferred 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 */ - - -#undef 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 transferred 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 transferred 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); - 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 ,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; /* transferred 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(int index, enum usb_init_type init, void **controller) -{ - unsigned char temp; - int busdevfunc; - - busdevfunc=pci_find_device(USB_UHCI_VEND_ID,USB_UHCI_DEV_ID,0); /* get PCI Device ID */ - if(busdevfunc==-1) { - printf("Error USB UHCI (%04X,%04X) not found\n",USB_UHCI_VEND_ID,USB_UHCI_DEV_ID); - return -1; - } - pci_read_config_byte(busdevfunc,PCI_INTERRUPT_LINE,&temp); - irqvec = temp; - irq_free_handler(irqvec); - USB_UHCI_PRINTF("Interrupt Line = %d, is %d\n",irqvec); - pci_read_config_byte(busdevfunc,PCI_INTERRUPT_PIN,&temp); - USB_UHCI_PRINTF("Interrupt Pin = %ld\n",temp); - pci_read_config_dword(busdevfunc,PCI_BASE_ADDRESS_4,&usb_base_addr); - USB_UHCI_PRINTF("IO Base Address = 0x%lx\n",usb_base_addr); - usb_base_addr&=0xFFFFFFF0; - usb_base_addr+=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); - return 0; -} - -/* stop uhci - */ -int usb_lowlevel_stop(int index) -{ - if(irqvec==-1) - return 1; - irq_free_handler(irqvec); - reset_hc(); - irqvec = -1; - return 0; -} - -/******************************************************************************************* - * Virtual Root Hub - * Since the uhci does not have a real HUB, we simulate one ;-) - */ -#undef USB_RH_DEBUG - -#ifdef USB_RH_DEBUG -#define USB_RH_PRINTF(fmt,args...) printf (fmt ,##args) -static void usb_display_wValue(unsigned short wValue,unsigned short wIndex); -static void usb_display_Req(unsigned short req); -#else -#define USB_RH_PRINTF(fmt,args...) -static void usb_display_wValue(unsigned short wValue,unsigned short wIndex) {} -static void usb_display_Req(unsigned short req) {} -#endif - -#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"); -#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); - 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(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 */ |