| /* |
| * 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 |
| * (C) Copyright 2008, Daniel Hellström, daniel@gaisler.com |
| * Added AMBA Plug&Play detection of GRUSB, modified interrupt handler. |
| * Added cache flushes where needed. |
| * |
| * 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 |
| * |
| * |
| */ |
| |
| /********************************************************************** |
| * 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 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 <ambapp.h> |
| #include <asm/leon.h> |
| #include <asm/leon3.h> |
| #include <asm/processor.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 */ |
| |
| extern int leon3_snooping_avail; |
| /* |
| #define out16r(address,data) (*(unsigned short *)(address) = \ |
| (unsigned short)( \ |
| (((unsigned short)(data)&0xff)<<8) | \ |
| (((unsigned short)(data)&0xff00)>>8) \ |
| )) |
| */ |
| #define out16r(address,data) _out16r((unsigned int)(address), (unsigned short)(data)) |
| void _out16r(unsigned int address, unsigned short data) |
| { |
| unsigned short val = (unsigned short)((((unsigned short)(data) & 0xff) |
| << 8) | (((unsigned short)(data) |
| & 0xff00) >> 8)); |
| #ifdef UHCI_DEBUG_REGS |
| printf("out16r(0x%lx,0x%04x = 0x%04x)\n", address, val, data); |
| #endif |
| *(unsigned short *)(address) = val; |
| } |
| |
| #define out32r(address,data) _out32r((unsigned int)(address), (unsigned int)(data)) |
| void _out32r(unsigned int address, unsigned int data) |
| { |
| unsigned int val = (unsigned int)((((unsigned int)(data) & 0x000000ff) |
| << 24) | (((unsigned int)(data) & |
| 0x0000ff00) << 8) | |
| (((unsigned int)(data) & 0x00ff0000) |
| >> 8) | (((unsigned int)(data) & |
| 0xff000000) >> 24)); |
| #ifdef UHCI_DEBUG_REGS |
| printf("out32r(0x%lx,0x%lx = 0x%lx)\n", address, val, data); |
| #endif |
| *(unsigned int *)address = val; |
| } |
| |
| #define in16r(address) _in16r((unsigned int)(address)) |
| unsigned short _in16r(unsigned int address) |
| { |
| unsigned short val = sparc_load_reg_cachemiss_word(address); |
| val = ((val << 8) & 0xff00) | ((val >> 8) & 0xff); |
| #ifdef UHCI_DEBUG_REGS |
| printf("in16r(0x%lx): 0x%04x\n", address, val); |
| #endif |
| return val; |
| } |
| |
| #define in32r(address) _in32r((unsigned int)(address)) |
| unsigned int _in32r(unsigned int address) |
| { |
| unsigned int val = sparc_load_reg_cachemiss(address); |
| val = |
| ((val << 24) & 0xff000000) | ((val << 8) & 0xff0000) | ((val >> 8) & |
| 0xff00) | |
| ((val >> 24) & 0xff); |
| #ifdef UHCI_DEBUG_REGS |
| printf("in32r(0x%lx): 0x%08x\n", address, val); |
| #endif |
| return val; |
| } |
| |
| #define READ32(address) sparc_load_reg_cachemiss((unsigned int)(address)) |
| |
| /*#define USB_UHCI_DEBUG*/ |
| #undef USB_UHCI_DEBUG |
| |
| void usb_show_td(int max); |
| #ifdef USB_UHCI_DEBUG |
| void grusb_show_regs(void); |
| #define USB_UHCI_PRINTF(fmt,args...) printf (fmt ,##args) |
| #else |
| #define USB_UHCI_PRINTF(fmt,args...) |
| #endif |
| |
| static int grusb_irq = -1; /* irq vector, if -1 uhci is stopped / reseted */ |
| unsigned int usb_base_addr; /* base address */ |
| |
| static uhci_td_t td_int[8] __attribute__ ((aligned(16))); /* Interrupt Transfer descriptors */ |
| static uhci_qh_t qh_cntrl __attribute__ ((aligned(16))); /* control Queue Head */ |
| static uhci_qh_t qh_bulk __attribute__ ((aligned(16))); /* bulk Queue Head */ |
| static uhci_qh_t qh_end __attribute__ ((aligned(16))); /* end Queue Head */ |
| static uhci_td_t td_last __attribute__ ((aligned(16))); /* last TD (linked with end chain) */ |
| |
| /* temporary tds */ |
| static uhci_td_t tmp_td[USB_MAX_TEMP_TD] __attribute__ ((aligned(16))); /* temporary bulk/control td's */ |
| static uhci_td_t tmp_int_td[USB_MAX_TEMP_INT_TD] __attribute__ ((aligned(16))); /* 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); |
| if ((info & UHCI_PID) == 0) |
| info |= USB_PID_OUT; |
| 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)READ32(&mytd->status)); |
| stat = usb_uhci_td_stat(temp); |
| info = swap_32((unsigned long)READ32(&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)READ32(&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 |
| *-------------------------------------------------------------------*/ |
| int dummy(void) |
| { |
| USB_UHCI_PRINTF("DUMMY\n"); |
| return 0; |
| } |
| |
| /* 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); |
| #ifdef DEBUG_EXTRA |
| { |
| 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 */ |
| dummy(); |
| 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; |
| } |
| |
| /*------------------------------------------------------------------- |
| * 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, 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, 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 |
| |
| 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"); |
| 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 */ |