1 files changed, 0 insertions, 569 deletions

diff --git a/qemu/roms/seabios/src/hw/usb-ohci.c b/qemu/roms/seabios/src/hw/usb-ohci.c
deleted file mode 100644
index 42f8a0681..000000000
--- a/qemu/roms/seabios/src/hw/usb-ohci.c
+++ /dev/null
@@ -1,569 +0,0 @@
-// Code for handling OHCI 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 "memmap.h" // PAGE_SIZE
-#include "output.h" // dprintf
-#include "pci.h" // pci_bdf_to_bus
-#include "pci_ids.h" // PCI_CLASS_SERIAL_USB_OHCI
-#include "pci_regs.h" // PCI_BASE_ADDRESS_0
-#include "string.h" // memset
-#include "usb.h" // struct usb_s
-#include "usb-ohci.h" // struct ohci_hcca
-#include "util.h" // msleep
-#include "x86.h" // readl
-
-#define FIT                     (1 << 31)
-
-struct usb_ohci_s {
-    struct usb_s usb;
-    struct ohci_regs *regs;
-};
-
-struct ohci_pipe {
-    struct ohci_ed ed;
-    struct usb_pipe pipe;
-    struct ohci_regs *regs;
-    void *data;
-    int count;
-    struct ohci_td *tds;
-};
-
-
-/****************************************************************
- * Root hub
- ****************************************************************/
-
-// Check if device attached to port
-static int
-ohci_hub_detect(struct usbhub_s *hub, u32 port)
-{
-    struct usb_ohci_s *cntl = container_of(hub->cntl, struct usb_ohci_s, usb);
-    u32 sts = readl(&cntl->regs->roothub_portstatus[port]);
-    return (sts & RH_PS_CCS) ? 1 : 0;
-}
-
-// Disable port
-static void
-ohci_hub_disconnect(struct usbhub_s *hub, u32 port)
-{
-    struct usb_ohci_s *cntl = container_of(hub->cntl, struct usb_ohci_s, usb);
-    writel(&cntl->regs->roothub_portstatus[port], RH_PS_CCS|RH_PS_LSDA);
-}
-
-// Reset device on port
-static int
-ohci_hub_reset(struct usbhub_s *hub, u32 port)
-{
-    struct usb_ohci_s *cntl = container_of(hub->cntl, struct usb_ohci_s, usb);
-    writel(&cntl->regs->roothub_portstatus[port], RH_PS_PRS);
-    u32 sts;
-    u32 end = timer_calc(USB_TIME_DRSTR * 2);
-    for (;;) {
-        sts = readl(&cntl->regs->roothub_portstatus[port]);
-        if (!(sts & RH_PS_PRS))
-            // XXX - need to ensure USB_TIME_DRSTR time in reset?
-            break;
-        if (timer_check(end)) {
-            // Timeout.
-            warn_timeout();
-            ohci_hub_disconnect(hub, port);
-            return -1;
-        }
-        yield();
-    }
-
-    if ((sts & (RH_PS_CCS|RH_PS_PES)) != (RH_PS_CCS|RH_PS_PES))
-        // Device no longer present
-        return -1;
-
-    return !!(sts & RH_PS_LSDA);
-}
-
-static struct usbhub_op_s ohci_HubOp = {
-    .detect = ohci_hub_detect,
-    .reset = ohci_hub_reset,
-    .disconnect = ohci_hub_disconnect,
-};
-
-// Find any devices connected to the root hub.
-static int
-check_ohci_ports(struct usb_ohci_s *cntl)
-{
-    ASSERT32FLAT();
-    // Turn on power for all devices on roothub.
-    u32 rha = readl(&cntl->regs->roothub_a);
-    rha &= ~(RH_A_PSM | RH_A_OCPM);
-    writel(&cntl->regs->roothub_status, RH_HS_LPSC);
-    writel(&cntl->regs->roothub_b, RH_B_PPCM);
-    msleep((rha >> 24) * 2);
-    // XXX - need to sleep for USB_TIME_SIGATT if just powered up?
-
-    struct usbhub_s hub;
-    memset(&hub, 0, sizeof(hub));
-    hub.cntl = &cntl->usb;
-    hub.portcount = rha & RH_A_NDP;
-    hub.op = &ohci_HubOp;
-    usb_enumerate(&hub);
-    return hub.devcount;
-}
-
-
-/****************************************************************
- * Setup
- ****************************************************************/
-
-// Wait for next USB frame to start - for ensuring safe memory release.
-static void
-ohci_waittick(struct ohci_regs *regs)
-{
-    barrier();
-    struct ohci_hcca *hcca = (void*)regs->hcca;
-    u32 startframe = hcca->frame_no;
-    u32 end = timer_calc(1000 * 5);
-    for (;;) {
-        if (hcca->frame_no != startframe)
-            break;
-        if (timer_check(end)) {
-            warn_timeout();
-            return;
-        }
-        yield();
-    }
-}
-
-static void
-ohci_free_pipes(struct usb_ohci_s *cntl)
-{
-    dprintf(7, "ohci_free_pipes %p\n", cntl);
-
-    u32 creg = readl(&cntl->regs->control);
-    if (creg & (OHCI_CTRL_CLE|OHCI_CTRL_BLE)) {
-        writel(&cntl->regs->control, creg & ~(OHCI_CTRL_CLE|OHCI_CTRL_BLE));
-        ohci_waittick(cntl->regs);
-    }
-
-    u32 *pos = &cntl->regs->ed_controlhead;
-    for (;;) {
-        struct ohci_ed *next = (void*)*pos;
-        if (!next)
-            break;
-        struct ohci_pipe *pipe = container_of(next, struct ohci_pipe, ed);
-        if (usb_is_freelist(&cntl->usb, &pipe->pipe)) {
-            *pos = next->hwNextED;
-            free(pipe);
-        } else {
-            pos = &next->hwNextED;
-        }
-    }
-
-    writel(&cntl->regs->ed_controlcurrent, 0);
-    writel(&cntl->regs->ed_bulkcurrent, 0);
-    writel(&cntl->regs->control, creg);
-    cntl->usb.freelist = NULL;
-}
-
-static int
-start_ohci(struct usb_ohci_s *cntl, struct ohci_hcca *hcca)
-{
-    u32 oldfminterval = readl(&cntl->regs->fminterval);
-    u32 oldrwc = readl(&cntl->regs->control) & OHCI_CTRL_RWC;
-
-    // XXX - check if already running?
-
-    // Do reset
-    writel(&cntl->regs->control, OHCI_USB_RESET | oldrwc);
-    readl(&cntl->regs->control); // flush writes
-    msleep(USB_TIME_DRSTR);
-
-    // Do software init (min 10us, max 2ms)
-    u32 end = timer_calc_usec(10);
-    writel(&cntl->regs->cmdstatus, OHCI_HCR);
-    for (;;) {
-        u32 status = readl(&cntl->regs->cmdstatus);
-        if (! status & OHCI_HCR)
-            break;
-        if (timer_check(end)) {
-            warn_timeout();
-            return -1;
-        }
-    }
-
-    // Init memory
-    writel(&cntl->regs->ed_controlhead, 0);
-    writel(&cntl->regs->ed_bulkhead, 0);
-    writel(&cntl->regs->hcca, (u32)hcca);
-
-    // Init fminterval
-    u32 fi = oldfminterval & 0x3fff;
-    writel(&cntl->regs->fminterval
-           , (((oldfminterval & FIT) ^ FIT)
-              | fi | (((6 * (fi - 210)) / 7) << 16)));
-    writel(&cntl->regs->periodicstart, ((9 * fi) / 10) & 0x3fff);
-    readl(&cntl->regs->control); // flush writes
-
-    // XXX - verify that fminterval was setup correctly.
-
-    // Go into operational state
-    writel(&cntl->regs->control
-           , (OHCI_CTRL_CBSR | OHCI_CTRL_CLE | OHCI_CTRL_BLE | OHCI_CTRL_PLE
-              | OHCI_USB_OPER | oldrwc));
-    readl(&cntl->regs->control); // flush writes
-
-    return 0;
-}
-
-static void
-stop_ohci(struct usb_ohci_s *cntl)
-{
-    u32 oldrwc = readl(&cntl->regs->control) & OHCI_CTRL_RWC;
-    writel(&cntl->regs->control, oldrwc);
-    readl(&cntl->regs->control); // flush writes
-}
-
-static void
-configure_ohci(void *data)
-{
-    struct usb_ohci_s *cntl = data;
-
-    // Allocate memory
-    struct ohci_hcca *hcca = memalign_high(256, sizeof(*hcca));
-    struct ohci_ed *intr_ed = malloc_high(sizeof(*intr_ed));
-    if (!hcca || !intr_ed) {
-        warn_noalloc();
-        goto free;
-    }
-    memset(hcca, 0, sizeof(*hcca));
-    memset(intr_ed, 0, sizeof(*intr_ed));
-    intr_ed->hwINFO = ED_SKIP;
-    int i;
-    for (i=0; i<ARRAY_SIZE(hcca->int_table); i++)
-        hcca->int_table[i] = (u32)intr_ed;
-
-    int ret = start_ohci(cntl, hcca);
-    if (ret)
-        goto err;
-
-    int count = check_ohci_ports(cntl);
-    ohci_free_pipes(cntl);
-    if (! count)
-        goto err;
-    return;
-
-err:
-    stop_ohci(cntl);
-free:
-    free(hcca);
-    free(intr_ed);
-}
-
-static void
-ohci_controller_setup(struct pci_device *pci)
-{
-    struct usb_ohci_s *cntl = malloc_tmphigh(sizeof(*cntl));
-    if (!cntl) {
-        warn_noalloc();
-        return;
-    }
-    memset(cntl, 0, sizeof(*cntl));
-    cntl->usb.pci = pci;
-    cntl->usb.type = USB_TYPE_OHCI;
-
-    wait_preempt();  // Avoid pci_config_readl when preempting
-    u16 bdf = pci->bdf;
-    u32 baseaddr = pci_config_readl(bdf, PCI_BASE_ADDRESS_0);
-    cntl->regs = (void*)(baseaddr & PCI_BASE_ADDRESS_MEM_MASK);
-
-    dprintf(1, "OHCI init on dev %02x:%02x.%x (regs=%p)\n"
-            , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf)
-            , pci_bdf_to_fn(bdf), cntl->regs);
-
-    // Enable bus mastering and memory access.
-    pci_config_maskw(bdf, PCI_COMMAND
-                     , 0, PCI_COMMAND_MASTER|PCI_COMMAND_MEMORY);
-
-    // XXX - check for and disable SMM control?
-
-    // Disable interrupts
-    writel(&cntl->regs->intrdisable, ~0);
-    writel(&cntl->regs->intrstatus, ~0);
-
-    run_thread(configure_ohci, cntl);
-}
-
-void
-ohci_setup(void)
-{
-    if (! CONFIG_USB_OHCI)
-        return;
-    struct pci_device *pci;
-    foreachpci(pci) {
-        if (pci_classprog(pci) == PCI_CLASS_SERIAL_USB_OHCI)
-            ohci_controller_setup(pci);
-    }
-}
-
-
-/****************************************************************
- * End point communication
- ****************************************************************/
-
-// Setup fields in ed
-static void
-ohci_desc2pipe(struct ohci_pipe *pipe, struct usbdevice_s *usbdev
-               , struct usb_endpoint_descriptor *epdesc)
-{
-    usb_desc2pipe(&pipe->pipe, usbdev, epdesc);
-    pipe->ed.hwINFO = (ED_SKIP | usbdev->devaddr | (pipe->pipe.ep << 7)
-                       | (epdesc->wMaxPacketSize << 16)
-                       | (usbdev->speed ? ED_LOWSPEED : 0));
-    struct usb_ohci_s *cntl = container_of(
-        usbdev->hub->cntl, struct usb_ohci_s, usb);
-    pipe->regs = cntl->regs;
-}
-
-static struct usb_pipe *
-ohci_alloc_intr_pipe(struct usbdevice_s *usbdev
-                     , struct usb_endpoint_descriptor *epdesc)
-{
-    struct usb_ohci_s *cntl = container_of(
-        usbdev->hub->cntl, struct usb_ohci_s, usb);
-    int frameexp = usb_get_period(usbdev, epdesc);
-    dprintf(7, "ohci_alloc_intr_pipe %p %d\n", &cntl->usb, frameexp);
-
-    if (frameexp > 5)
-        frameexp = 5;
-    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) + 1;
-    struct ohci_pipe *pipe = malloc_low(sizeof(*pipe));
-    struct ohci_td *tds = malloc_low(sizeof(*tds) * count);
-    void *data = malloc_low(maxpacket * count);
-    if (!pipe || !tds || !data)
-        goto err;
-    memset(pipe, 0, sizeof(*pipe));
-    ohci_desc2pipe(pipe, usbdev, epdesc);
-    pipe->ed.hwINFO &= ~ED_SKIP;
-    pipe->data = data;
-    pipe->count = count;
-    pipe->tds = tds;
-
-    struct ohci_ed *ed = &pipe->ed;
-    ed->hwHeadP = (u32)&tds[0];
-    ed->hwTailP = (u32)&tds[count-1];
-
-    int i;
-    for (i=0; i<count-1; i++) {
-        tds[i].hwINFO = TD_DP_IN | TD_T_TOGGLE | TD_CC;
-        tds[i].hwCBP = (u32)data + maxpacket * i;
-        tds[i].hwNextTD = (u32)&tds[i+1];
-        tds[i].hwBE = tds[i].hwCBP + maxpacket - 1;
-    }
-
-    // Add to interrupt schedule.
-    struct ohci_hcca *hcca = (void*)cntl->regs->hcca;
-    if (frameexp == 0) {
-        // Add to existing interrupt entry.
-        struct ohci_ed *intr_ed = (void*)hcca->int_table[0];
-        ed->hwNextED = intr_ed->hwNextED;
-        barrier();
-        intr_ed->hwNextED = (u32)ed;
-    } else {
-        int startpos = 1<<(frameexp-1);
-        ed->hwNextED = hcca->int_table[startpos];
-        barrier();
-        for (i=startpos; i<ARRAY_SIZE(hcca->int_table); i+=ms)
-            hcca->int_table[i] = (u32)ed;
-    }
-
-    return &pipe->pipe;
-
-err:
-    free(pipe);
-    free(tds);
-    free(data);
-    return NULL;
-}
-
-struct usb_pipe *
-ohci_realloc_pipe(struct usbdevice_s *usbdev, struct usb_pipe *upipe
-                  , struct usb_endpoint_descriptor *epdesc)
-{
-    if (! CONFIG_USB_OHCI)
-        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 ohci_alloc_intr_pipe(usbdev, epdesc);
-    struct usb_ohci_s *cntl = container_of(
-        usbdev->hub->cntl, struct usb_ohci_s, usb);
-    dprintf(7, "ohci_alloc_async_pipe %p\n", &cntl->usb);
-
-    struct usb_pipe *usbpipe = usb_get_freelist(&cntl->usb, eptype);
-    if (usbpipe) {
-        // Use previously allocated pipe.
-        struct ohci_pipe *pipe = container_of(usbpipe, struct ohci_pipe, pipe);
-        ohci_desc2pipe(pipe, usbdev, epdesc);
-        return usbpipe;
-    }
-
-    // Allocate a new queue head.
-    struct ohci_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));
-    ohci_desc2pipe(pipe, usbdev, epdesc);
-
-    // Add queue head to controller list.
-    u32 *head = &cntl->regs->ed_controlhead;
-    if (eptype != USB_ENDPOINT_XFER_CONTROL)
-        head = &cntl->regs->ed_bulkhead;
-    pipe->ed.hwNextED = *head;
-    barrier();
-    *head = (u32)&pipe->ed;
-    return &pipe->pipe;
-}
-
-static int
-wait_ed(struct ohci_ed *ed, int timeout)
-{
-    u32 end = timer_calc(timeout);
-    for (;;) {
-        if ((ed->hwHeadP & ~(ED_C|ED_H)) == ed->hwTailP)
-            return 0;
-        if (timer_check(end)) {
-            warn_timeout();
-            dprintf(1, "ohci ed info=%x tail=%x head=%x next=%x\n"
-                    , ed->hwINFO, ed->hwTailP, ed->hwHeadP, ed->hwNextED);
-            return -1;
-        }
-        yield();
-    }
-}
-
-#define STACKOTDS 18
-#define OHCI_TD_ALIGN 16
-
-int
-ohci_send_pipe(struct usb_pipe *p, int dir, const void *cmd
-               , void *data, int datasize)
-{
-    ASSERT32FLAT();
-    if (! CONFIG_USB_OHCI)
-        return -1;
-    dprintf(7, "ohci_send_pipe %p\n", p);
-    struct ohci_pipe *pipe = container_of(p, struct ohci_pipe, pipe);
-
-    // Allocate tds on stack (with required alignment)
-    u8 tdsbuf[sizeof(struct ohci_td) * STACKOTDS + OHCI_TD_ALIGN - 1];
-    struct ohci_td *tds = (void*)ALIGN((u32)tdsbuf, OHCI_TD_ALIGN), *td = tds;
-    memset(tds, 0, sizeof(*tds) * STACKOTDS);
-
-    // Setup transfer descriptors
-    u16 maxpacket = pipe->pipe.maxpacket;
-    u32 toggle = 0, statuscmd = OHCI_BLF;
-    if (cmd) {
-        // Send setup pid on control transfers
-        td->hwINFO = TD_DP_SETUP | TD_T_DATA0 | TD_CC;
-        td->hwCBP = (u32)cmd;
-        td->hwNextTD = (u32)&td[1];
-        td->hwBE = (u32)cmd + USB_CONTROL_SETUP_SIZE - 1;
-        td++;
-        toggle = TD_T_DATA1;
-        statuscmd = OHCI_CLF;
-    }
-    u32 dest = (u32)data, dataend = dest + datasize;
-    while (dest < dataend) {
-        // Send data pids
-        if (td >= &tds[STACKOTDS]) {
-            warn_noalloc();
-            return -1;
-        }
-        int maxtransfer = 2*PAGE_SIZE - (dest & (PAGE_SIZE-1));
-        int transfer = dataend - dest;
-        if (transfer > maxtransfer)
-            transfer = ALIGN_DOWN(maxtransfer, maxpacket);
-        td->hwINFO = (dir ? TD_DP_IN : TD_DP_OUT) | toggle | TD_CC;
-        td->hwCBP = dest;
-        td->hwNextTD = (u32)&td[1];
-        td->hwBE = dest + transfer - 1;
-        td++;
-        dest += transfer;
-    }
-    if (cmd) {
-        // Send status pid on control transfers
-        if (td >= &tds[STACKOTDS]) {
-            warn_noalloc();
-            return -1;
-        }
-        td->hwINFO = (dir ? TD_DP_OUT : TD_DP_IN) | TD_T_DATA1 | TD_CC;
-        td->hwCBP = 0;
-        td->hwNextTD = (u32)&td[1];
-        td->hwBE = 0;
-        td++;
-    }
-
-    // Transfer data
-    pipe->ed.hwHeadP = (u32)tds | (pipe->ed.hwHeadP & ED_C);
-    pipe->ed.hwTailP = (u32)td;
-    barrier();
-    pipe->ed.hwINFO &= ~ED_SKIP;
-    writel(&pipe->regs->cmdstatus, statuscmd);
-
-    int ret = wait_ed(&pipe->ed, usb_xfer_time(p, datasize));
-    pipe->ed.hwINFO |= ED_SKIP;
-    if (ret)
-        ohci_waittick(pipe->regs);
-    return ret;
-}
-
-int
-ohci_poll_intr(struct usb_pipe *p, void *data)
-{
-    ASSERT16();
-    if (! CONFIG_USB_OHCI)
-        return -1;
-
-    struct ohci_pipe *pipe = container_of(p, struct ohci_pipe, pipe);
-    struct ohci_td *tds = GET_LOWFLAT(pipe->tds);
-    struct ohci_td *head = (void*)(GET_LOWFLAT(pipe->ed.hwHeadP) & ~(ED_C|ED_H));
-    struct ohci_td *tail = (void*)GET_LOWFLAT(pipe->ed.hwTailP);
-    int count = GET_LOWFLAT(pipe->count);
-    int pos = (tail - tds + 1) % count;
-    struct ohci_td *next = &tds[pos];
-    if (head == next)
-        // No intrs found.
-        return -1;
-    // XXX - check for errors.
-
-    // Copy data.
-    int maxpacket = GET_LOWFLAT(pipe->pipe.maxpacket);
-    void *pipedata = GET_LOWFLAT((pipe->data));
-    void *intrdata = pipedata + maxpacket * pos;
-    memcpy_far(GET_SEG(SS), data, SEG_LOW, LOWFLAT2LOW(intrdata), maxpacket);
-
-    // Reenable this td.
-    SET_LOWFLAT(tail->hwINFO, TD_DP_IN | TD_T_TOGGLE | TD_CC);
-    intrdata = pipedata + maxpacket * (tail-tds);
-    SET_LOWFLAT(tail->hwCBP, (u32)intrdata);
-    SET_LOWFLAT(tail->hwNextTD, (u32)next);
-    SET_LOWFLAT(tail->hwBE, (u32)intrdata + maxpacket - 1);
-    barrier();
-    SET_LOWFLAT(pipe->ed.hwTailP, (u32)next);
-
-    return 0;
-}