1 files changed, 0 insertions, 567 deletions

diff --git a/qemu/roms/seabios/src/hw/usb-uhci.c b/qemu/roms/seabios/src/hw/usb-uhci.c
deleted file mode 100644
index 69c33ee3b..000000000
--- a/qemu/roms/seabios/src/hw/usb-uhci.c
+++ /dev/null
@@ -1,567 +0,0 @@
-// Code for handling UHCI USB controllers.
-//
-// Copyright (C) 2009  Kevin O'Connor <kevin@koconnor.net>
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "biosvar.h" // GET_LOWFLAT
-#include "config.h" // CONFIG_*
-#include "malloc.h" // free
-#include "output.h" // dprintf
-#include "pci.h" // pci_bdf_to_bus
-#include "pci_ids.h" // PCI_CLASS_SERIAL_USB_UHCI
-#include "pci_regs.h" // PCI_BASE_ADDRESS_4
-#include "string.h" // memset
-#include "usb.h" // struct usb_s
-#include "usb-uhci.h" // USBLEGSUP
-#include "util.h" // msleep
-#include "x86.h" // outw
-
-struct usb_uhci_s {
-    struct usb_s usb;
-    u16 iobase;
-    struct uhci_qh *control_qh;
-    struct uhci_framelist *framelist;
-};
-
-struct uhci_pipe {
-    struct uhci_qh qh;
-    struct uhci_td *next_td;
-    struct usb_pipe pipe;
-    u16 iobase;
-    u8 toggle;
-};
-
-
-/****************************************************************
- * Root hub
- ****************************************************************/
-
-// Check if device attached to a given port
-static int
-uhci_hub_detect(struct usbhub_s *hub, u32 port)
-{
-    struct usb_uhci_s *cntl = container_of(hub->cntl, struct usb_uhci_s, usb);
-    u16 ioport = cntl->iobase + USBPORTSC1 + port * 2;
-    u16 status = inw(ioport);
-    if (!(status & USBPORTSC_CCS))
-        // No device found.
-        return 0;
-
-    // XXX - if just powered up, need to wait for USB_TIME_ATTDB?
-
-    // Begin reset on port
-    outw(USBPORTSC_PR, ioport);
-    msleep(USB_TIME_DRSTR);
-    return 1;
-}
-
-// Reset device on port
-static int
-uhci_hub_reset(struct usbhub_s *hub, u32 port)
-{
-    struct usb_uhci_s *cntl = container_of(hub->cntl, struct usb_uhci_s, usb);
-    u16 ioport = cntl->iobase + USBPORTSC1 + port * 2;
-
-    // Finish reset on port
-    outw(0, ioport);
-    udelay(6); // 64 high-speed bit times
-    u16 status = inw(ioport);
-    if (!(status & USBPORTSC_CCS))
-        // No longer connected
-        return -1;
-    outw(USBPORTSC_PE, ioport);
-    return !!(status & USBPORTSC_LSDA);
-}
-
-// Disable port
-static void
-uhci_hub_disconnect(struct usbhub_s *hub, u32 port)
-{
-    struct usb_uhci_s *cntl = container_of(hub->cntl, struct usb_uhci_s, usb);
-    u16 ioport = cntl->iobase + USBPORTSC1 + port * 2;
-    outw(0, ioport);
-}
-
-static struct usbhub_op_s uhci_HubOp = {
-    .detect = uhci_hub_detect,
-    .reset = uhci_hub_reset,
-    .disconnect = uhci_hub_disconnect,
-};
-
-// Find any devices connected to the root hub.
-static int
-check_uhci_ports(struct usb_uhci_s *cntl)
-{
-    ASSERT32FLAT();
-    struct usbhub_s hub;
-    memset(&hub, 0, sizeof(hub));
-    hub.cntl = &cntl->usb;
-    hub.portcount = 2;
-    hub.op = &uhci_HubOp;
-    usb_enumerate(&hub);
-    return hub.devcount;
-}
-
-
-/****************************************************************
- * Setup
- ****************************************************************/
-
-// Wait for next USB frame to start - for ensuring safe memory release.
-static void
-uhci_waittick(u16 iobase)
-{
-    barrier();
-    u16 startframe = inw(iobase + USBFRNUM);
-    u32 end = timer_calc(1000 * 5);
-    for (;;) {
-        if (inw(iobase + USBFRNUM) != startframe)
-            break;
-        if (timer_check(end)) {
-            warn_timeout();
-            return;
-        }
-        yield();
-    }
-}
-
-static void
-uhci_free_pipes(struct usb_uhci_s *cntl)
-{
-    dprintf(7, "uhci_free_pipes %p\n", cntl);
-
-    struct uhci_qh *pos = (void*)(cntl->framelist->links[0] & ~UHCI_PTR_BITS);
-    for (;;) {
-        u32 link = pos->link;
-        if (link == UHCI_PTR_TERM)
-            break;
-        struct uhci_qh *next = (void*)(link & ~UHCI_PTR_BITS);
-        struct uhci_pipe *pipe = container_of(next, struct uhci_pipe, qh);
-        if (usb_is_freelist(&cntl->usb, &pipe->pipe))
-            pos->link = next->link;
-        else
-            pos = next;
-    }
-    uhci_waittick(cntl->iobase);
-    for (;;) {
-        struct usb_pipe *usbpipe = cntl->usb.freelist;
-        if (!usbpipe)
-            break;
-        cntl->usb.freelist = usbpipe->freenext;
-        struct uhci_pipe *pipe = container_of(usbpipe, struct uhci_pipe, pipe);
-        free(pipe);
-    }
-}
-
-static void
-reset_uhci(struct usb_uhci_s *cntl, u16 bdf)
-{
-    // XXX - don't reset if not needed.
-
-    // Reset PIRQ and SMI
-    pci_config_writew(bdf, USBLEGSUP, USBLEGSUP_RWC);
-
-    // Reset the HC
-    outw(USBCMD_HCRESET, cntl->iobase + USBCMD);
-    udelay(5);
-
-    // Disable interrupts and commands (just to be safe).
-    outw(0, cntl->iobase + USBINTR);
-    outw(0, cntl->iobase + USBCMD);
-}
-
-static void
-configure_uhci(void *data)
-{
-    struct usb_uhci_s *cntl = data;
-
-    // Allocate ram for schedule storage
-    struct uhci_td *term_td = malloc_high(sizeof(*term_td));
-    struct uhci_framelist *fl = memalign_high(sizeof(*fl), sizeof(*fl));
-    struct uhci_pipe *intr_pipe = malloc_high(sizeof(*intr_pipe));
-    struct uhci_pipe *term_pipe = malloc_high(sizeof(*term_pipe));
-    if (!term_td || !fl || !intr_pipe || !term_pipe) {
-        warn_noalloc();
-        goto fail;
-    }
-
-    // Work around for PIIX errata
-    memset(term_td, 0, sizeof(*term_td));
-    term_td->link = UHCI_PTR_TERM;
-    term_td->token = (uhci_explen(0) | (0x7f << TD_TOKEN_DEVADDR_SHIFT)
-                      | USB_PID_IN);
-    memset(term_pipe, 0, sizeof(*term_pipe));
-    term_pipe->qh.element = (u32)term_td;
-    term_pipe->qh.link = UHCI_PTR_TERM;
-    term_pipe->pipe.cntl = &cntl->usb;
-
-    // Set schedule to point to primary intr queue head
-    memset(intr_pipe, 0, sizeof(*intr_pipe));
-    intr_pipe->qh.element = UHCI_PTR_TERM;
-    intr_pipe->qh.link = (u32)&term_pipe->qh | UHCI_PTR_QH;
-    intr_pipe->pipe.cntl = &cntl->usb;
-    int i;
-    for (i=0; i<ARRAY_SIZE(fl->links); i++)
-        fl->links[i] = (u32)&intr_pipe->qh | UHCI_PTR_QH;
-    cntl->framelist = fl;
-    cntl->control_qh = &intr_pipe->qh;
-    barrier();
-
-    // Set the frame length to the default: 1 ms exactly
-    outb(USBSOF_DEFAULT, cntl->iobase + USBSOF);
-
-    // Store the frame list base address
-    outl((u32)fl->links, cntl->iobase + USBFLBASEADD);
-
-    // Set the current frame number
-    outw(0, cntl->iobase + USBFRNUM);
-
-    // Mark as configured and running with a 64-byte max packet.
-    outw(USBCMD_RS | USBCMD_CF | USBCMD_MAXP, cntl->iobase + USBCMD);
-
-    // Find devices
-    int count = check_uhci_ports(cntl);
-    uhci_free_pipes(cntl);
-    if (count)
-        // Success
-        return;
-
-    // No devices found - shutdown and free controller.
-    outw(0, cntl->iobase + USBCMD);
-fail:
-    free(term_td);
-    free(fl);
-    free(intr_pipe);
-    free(term_pipe);
-    free(cntl);
-}
-
-static void
-uhci_controller_setup(struct pci_device *pci)
-{
-    u16 bdf = pci->bdf;
-    struct usb_uhci_s *cntl = malloc_tmphigh(sizeof(*cntl));
-    if (!cntl) {
-        warn_noalloc();
-        return;
-    }
-    wait_preempt();  // Avoid pci_config_readl when preempting
-    memset(cntl, 0, sizeof(*cntl));
-    cntl->usb.pci = pci;
-    cntl->usb.type = USB_TYPE_UHCI;
-    cntl->iobase = (pci_config_readl(bdf, PCI_BASE_ADDRESS_4)
-                    & PCI_BASE_ADDRESS_IO_MASK);
-
-    dprintf(1, "UHCI init on dev %02x:%02x.%x (io=%x)\n"
-            , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf)
-            , pci_bdf_to_fn(bdf), cntl->iobase);
-
-    pci_config_maskw(bdf, PCI_COMMAND, 0, PCI_COMMAND_MASTER);
-
-    reset_uhci(cntl, bdf);
-
-    run_thread(configure_uhci, cntl);
-}
-
-void
-uhci_setup(void)
-{
-    if (! CONFIG_USB_UHCI)
-        return;
-    struct pci_device *pci;
-    foreachpci(pci) {
-        if (pci_classprog(pci) == PCI_CLASS_SERIAL_USB_UHCI)
-            uhci_controller_setup(pci);
-    }
-}
-
-
-/****************************************************************
- * End point communication
- ****************************************************************/
-
-static struct usb_pipe *
-uhci_alloc_intr_pipe(struct usbdevice_s *usbdev
-                     , struct usb_endpoint_descriptor *epdesc)
-{
-    struct usb_uhci_s *cntl = container_of(
-        usbdev->hub->cntl, struct usb_uhci_s, usb);
-    int frameexp = usb_get_period(usbdev, epdesc);
-    dprintf(7, "uhci_alloc_intr_pipe %p %d\n", &cntl->usb, frameexp);
-
-    if (frameexp > 10)
-        frameexp = 10;
-    int maxpacket = epdesc->wMaxPacketSize;
-    // Determine number of entries needed for 2 timer ticks.
-    int ms = 1<<frameexp;
-    int count = DIV_ROUND_UP(ticks_to_ms(2), ms);
-    count = ALIGN(count, 2);
-    struct uhci_pipe *pipe = malloc_low(sizeof(*pipe));
-    struct uhci_td *tds = malloc_low(sizeof(*tds) * count);
-    void *data = malloc_low(maxpacket * count);
-    if (!pipe || !tds || !data) {
-        warn_noalloc();
-        goto fail;
-    }
-    memset(pipe, 0, sizeof(*pipe));
-    usb_desc2pipe(&pipe->pipe, usbdev, epdesc);
-    int lowspeed = pipe->pipe.speed;
-    int devaddr = pipe->pipe.devaddr | (pipe->pipe.ep << 7);
-    pipe->qh.element = (u32)tds;
-    pipe->next_td = &tds[0];
-    pipe->iobase = cntl->iobase;
-
-    int toggle = 0;
-    int i;
-    for (i=0; i<count; i++) {
-        tds[i].link = (i==count-1 ? (u32)&tds[0] : (u32)&tds[i+1]);
-        tds[i].status = (uhci_maxerr(3) | (lowspeed ? TD_CTRL_LS : 0)
-                         | TD_CTRL_ACTIVE);
-        tds[i].token = (uhci_explen(maxpacket) | toggle
-                        | (devaddr << TD_TOKEN_DEVADDR_SHIFT)
-                        | USB_PID_IN);
-        tds[i].buffer = data + maxpacket * i;
-        toggle ^= TD_TOKEN_TOGGLE;
-    }
-
-    // Add to interrupt schedule.
-    struct uhci_framelist *fl = cntl->framelist;
-    if (frameexp == 0) {
-        // Add to existing interrupt entry.
-        struct uhci_qh *intr_qh = (void*)(fl->links[0] & ~UHCI_PTR_BITS);
-        pipe->qh.link = intr_qh->link;
-        barrier();
-        intr_qh->link = (u32)&pipe->qh | UHCI_PTR_QH;
-        if (cntl->control_qh == intr_qh)
-            cntl->control_qh = &pipe->qh;
-    } else {
-        int startpos = 1<<(frameexp-1);
-        pipe->qh.link = fl->links[startpos];
-        barrier();
-        for (i=startpos; i<ARRAY_SIZE(fl->links); i+=ms)
-            fl->links[i] = (u32)&pipe->qh | UHCI_PTR_QH;
-    }
-
-    return &pipe->pipe;
-fail:
-    free(pipe);
-    free(tds);
-    free(data);
-    return NULL;
-}
-
-struct usb_pipe *
-uhci_realloc_pipe(struct usbdevice_s *usbdev, struct usb_pipe *upipe
-                  , struct usb_endpoint_descriptor *epdesc)
-{
-    if (! CONFIG_USB_UHCI)
-        return NULL;
-    usb_add_freelist(upipe);
-    if (!epdesc)
-        return NULL;
-    u8 eptype = epdesc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
-    if (eptype == USB_ENDPOINT_XFER_INT)
-        return uhci_alloc_intr_pipe(usbdev, epdesc);
-    struct usb_uhci_s *cntl = container_of(
-        usbdev->hub->cntl, struct usb_uhci_s, usb);
-    dprintf(7, "uhci_alloc_async_pipe %p %d\n", &cntl->usb, eptype);
-
-    struct usb_pipe *usbpipe = usb_get_freelist(&cntl->usb, eptype);
-    if (usbpipe) {
-        // Use previously allocated pipe.
-        usb_desc2pipe(usbpipe, usbdev, epdesc);
-        return usbpipe;
-    }
-
-    // Allocate a new queue head.
-    struct uhci_pipe *pipe;
-    if (eptype == USB_ENDPOINT_XFER_CONTROL)
-        pipe = malloc_tmphigh(sizeof(*pipe));
-    else
-        pipe = malloc_low(sizeof(*pipe));
-    if (!pipe) {
-        warn_noalloc();
-        return NULL;
-    }
-    memset(pipe, 0, sizeof(*pipe));
-    usb_desc2pipe(&pipe->pipe, usbdev, epdesc);
-    pipe->qh.element = UHCI_PTR_TERM;
-    pipe->iobase = cntl->iobase;
-
-    // Add queue head to controller list.
-    struct uhci_qh *control_qh = cntl->control_qh;
-    pipe->qh.link = control_qh->link;
-    barrier();
-    control_qh->link = (u32)&pipe->qh | UHCI_PTR_QH;
-    if (eptype == USB_ENDPOINT_XFER_CONTROL)
-        cntl->control_qh = &pipe->qh;
-    return &pipe->pipe;
-}
-
-static int
-wait_pipe(struct uhci_pipe *pipe, u32 end)
-{
-    for (;;) {
-        u32 el_link = GET_LOWFLAT(pipe->qh.element);
-        if (el_link & UHCI_PTR_TERM)
-            return 0;
-        if (timer_check(end)) {
-            warn_timeout();
-            u16 iobase = GET_LOWFLAT(pipe->iobase);
-            struct uhci_td *td = (void*)(el_link & ~UHCI_PTR_BITS);
-            dprintf(1, "Timeout on wait_pipe %p (td=%p s=%x c=%x/%x)\n"
-                    , pipe, (void*)el_link, GET_LOWFLAT(td->status)
-                    , inw(iobase + USBCMD)
-                    , inw(iobase + USBSTS));
-            SET_LOWFLAT(pipe->qh.element, UHCI_PTR_TERM);
-            uhci_waittick(iobase);
-            return -1;
-        }
-        yield();
-    }
-}
-
-static int
-wait_td(struct uhci_td *td, u32 end)
-{
-    u32 status;
-    for (;;) {
-        status = td->status;
-        if (!(status & TD_CTRL_ACTIVE))
-            break;
-        if (timer_check(end)) {
-            warn_timeout();
-            return -1;
-        }
-        yield();
-    }
-    if (status & TD_CTRL_ANY_ERROR) {
-        dprintf(1, "wait_td error - status=%x\n", status);
-        return -2;
-    }
-    return 0;
-}
-
-#define STACKTDS 16
-#define TDALIGN 16
-
-int
-uhci_send_pipe(struct usb_pipe *p, int dir, const void *cmd
-               , void *data, int datasize)
-{
-    if (! CONFIG_USB_UHCI)
-        return -1;
-    struct uhci_pipe *pipe = container_of(p, struct uhci_pipe, pipe);
-    dprintf(7, "uhci_send_pipe qh=%p dir=%d data=%p size=%d\n"
-            , &pipe->qh, dir, data, datasize);
-    int maxpacket = GET_LOWFLAT(pipe->pipe.maxpacket);
-    int lowspeed = GET_LOWFLAT(pipe->pipe.speed);
-    int devaddr = (GET_LOWFLAT(pipe->pipe.devaddr)
-                   | (GET_LOWFLAT(pipe->pipe.ep) << 7));
-    int toggle = GET_LOWFLAT(pipe->toggle) ? TD_TOKEN_TOGGLE : 0;
-
-    // Allocate 16 tds on stack (16byte aligned)
-    u8 tdsbuf[sizeof(struct uhci_td) * STACKTDS + TDALIGN - 1];
-    struct uhci_td *tds = (void*)ALIGN((u32)tdsbuf, TDALIGN);
-    memset(tds, 0, sizeof(*tds) * STACKTDS);
-    int tdpos = 0;
-
-    // Enable tds
-    u32 end = timer_calc(usb_xfer_time(p, datasize));
-    barrier();
-    SET_LOWFLAT(pipe->qh.element, (u32)MAKE_FLATPTR(GET_SEG(SS), tds));
-
-    // Setup transfer descriptors
-    if (cmd) {
-        // Send setup pid on control transfers
-        struct uhci_td *td = &tds[tdpos++ % STACKTDS];
-        u32 nexttd = (u32)MAKE_FLATPTR(GET_SEG(SS), &tds[tdpos % STACKTDS]);
-        td->link = nexttd | UHCI_PTR_DEPTH;
-        td->token = (uhci_explen(USB_CONTROL_SETUP_SIZE)
-                     | (devaddr << TD_TOKEN_DEVADDR_SHIFT) | USB_PID_SETUP);
-        td->buffer = (void*)cmd;
-        barrier();
-        td->status = (uhci_maxerr(3) | (lowspeed ? TD_CTRL_LS : 0)
-                      | TD_CTRL_ACTIVE);
-        toggle = TD_TOKEN_TOGGLE;
-    }
-    while (datasize) {
-        // Send data pids
-        struct uhci_td *td = &tds[tdpos++ % STACKTDS];
-        int ret = wait_td(td, end);
-        if (ret)
-            goto fail;
-
-        int transfer = datasize;
-        if (transfer > maxpacket)
-            transfer = maxpacket;
-        u32 nexttd = (u32)MAKE_FLATPTR(GET_SEG(SS), &tds[tdpos % STACKTDS]);
-        td->link = ((transfer==datasize && !cmd)
-                    ? UHCI_PTR_TERM : (nexttd | UHCI_PTR_DEPTH));
-        td->token = (uhci_explen(transfer) | toggle
-                     | (devaddr << TD_TOKEN_DEVADDR_SHIFT)
-                     | (dir ? USB_PID_IN : USB_PID_OUT));
-        td->buffer = data;
-        barrier();
-        td->status = (uhci_maxerr(3) | (lowspeed ? TD_CTRL_LS : 0)
-                      | TD_CTRL_ACTIVE);
-        toggle ^= TD_TOKEN_TOGGLE;
-
-        data += transfer;
-        datasize -= transfer;
-    }
-    if (cmd) {
-        // Send status pid on control transfers
-        struct uhci_td *td = &tds[tdpos++ % STACKTDS];
-        int ret = wait_td(td, end);
-        if (ret)
-            goto fail;
-        td->link = UHCI_PTR_TERM;
-        td->token = (uhci_explen(0) | TD_TOKEN_TOGGLE
-                     | (devaddr << TD_TOKEN_DEVADDR_SHIFT)
-                     | (dir ? USB_PID_OUT : USB_PID_IN));
-        td->buffer = 0;
-        barrier();
-        td->status = (uhci_maxerr(0) | (lowspeed ? TD_CTRL_LS : 0)
-                      | TD_CTRL_ACTIVE);
-    }
-    SET_LOWFLAT(pipe->toggle, !!toggle);
-    return wait_pipe(pipe, end);
-fail:
-    dprintf(1, "uhci_send_bulk failed\n");
-    SET_LOWFLAT(pipe->qh.element, UHCI_PTR_TERM);
-    uhci_waittick(GET_LOWFLAT(pipe->iobase));
-    return -1;
-}
-
-int
-uhci_poll_intr(struct usb_pipe *p, void *data)
-{
-    ASSERT16();
-    if (! CONFIG_USB_UHCI)
-        return -1;
-
-    struct uhci_pipe *pipe = container_of(p, struct uhci_pipe, pipe);
-    struct uhci_td *td = GET_LOWFLAT(pipe->next_td);
-    u32 status = GET_LOWFLAT(td->status);
-    u32 token = GET_LOWFLAT(td->token);
-    if (status & TD_CTRL_ACTIVE)
-        // No intrs found.
-        return -1;
-    // XXX - check for errors.
-
-    // Copy data.
-    void *tddata = GET_LOWFLAT(td->buffer);
-    memcpy_far(GET_SEG(SS), data, SEG_LOW, LOWFLAT2LOW(tddata)
-               , uhci_expected_length(token));
-
-    // Reenable this td.
-    struct uhci_td *next = (void*)(GET_LOWFLAT(td->link) & ~UHCI_PTR_BITS);
-    SET_LOWFLAT(pipe->next_td, next);
-    barrier();
-    SET_LOWFLAT(td->status, (uhci_maxerr(0) | (status & TD_CTRL_LS)
-                             | TD_CTRL_ACTIVE));
-
-    return 0;
-}