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xhci: prepare xhci_runtime_{read,write} for multiple interrupters 

Prepare xhci runtime register access function for multiple interrupters.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann 2012-08-30 17:15:12 +02:00
parent 962d11e172
commit 43d9d6047e
1 changed files with 57 additions and 43 deletions
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100
hw/usb/hcd-xhci.c
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@ -2586,37 +2586,43 @@ static void xhci_oper_write(XHCIState *xhci, uint32_t reg, uint32_t val)
static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
{
XHCIInterrupter *intr = &xhci->intr[0];
uint32_t ret;
uint32_t ret = 0;
switch (reg) {
case 0x00: /* MFINDEX */
ret = xhci_mfindex_get(xhci) & 0x3fff;
break;
case 0x20: /* IMAN */
ret = intr->iman;
break;
case 0x24: /* IMOD */
ret = intr->imod;
break;
case 0x28: /* ERSTSZ */
ret = intr->erstsz;
break;
case 0x30: /* ERSTBA low */
ret = intr->erstba_low;
break;
case 0x34: /* ERSTBA high */
ret = intr->erstba_high;
break;
case 0x38: /* ERDP low */
ret = intr->erdp_low;
break;
case 0x3c: /* ERDP high */
ret = intr->erdp_high;
break;
default:
fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n", reg);
ret = 0;
if (reg < 0x20) {
switch (reg) {
case 0x00: /* MFINDEX */
ret = xhci_mfindex_get(xhci) & 0x3fff;
break;
default:
fprintf(stderr, "xhci_runtime_read: reg 0x%x unimplemented\n", reg);
break;
}
} else {
int v = (reg - 0x20) / 0x20;
XHCIInterrupter *intr = &xhci->intr[v];
switch (reg & 0x1f) {
case 0x00: /* IMAN */
ret = intr->iman;
break;
case 0x04: /* IMOD */
ret = intr->imod;
break;
case 0x08: /* ERSTSZ */
ret = intr->erstsz;
break;
case 0x10: /* ERSTBA low */
ret = intr->erstba_low;
break;
case 0x14: /* ERSTBA high */
ret = intr->erstba_high;
break;
case 0x18: /* ERDP low */
ret = intr->erdp_low;
break;
case 0x1c: /* ERDP high */
ret = intr->erdp_high;
break;
}
}
trace_usb_xhci_runtime_read(reg, ret);
@ -2625,43 +2631,51 @@ static uint32_t xhci_runtime_read(XHCIState *xhci, uint32_t reg)
static void xhci_runtime_write(XHCIState *xhci, uint32_t reg, uint32_t val)
{
XHCIInterrupter *intr = &xhci->intr[0];
int v = (reg - 0x20) / 0x20;
XHCIInterrupter *intr = &xhci->intr[v];
trace_usb_xhci_runtime_write(reg, val);
switch (reg) {
case 0x20: /* IMAN */
if (reg < 0x20) {
fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", reg);
return;
}
switch (reg & 0x1f) {
case 0x00: /* IMAN */
if (val & IMAN_IP) {
intr->iman &= ~IMAN_IP;
}
intr->iman &= ~IMAN_IE;
intr->iman |= val & IMAN_IE;
xhci_intx_update(xhci);
xhci_msix_update(xhci, 0);
if (v == 0) {
xhci_intx_update(xhci);
}
xhci_msix_update(xhci, v);
break;
case 0x24: /* IMOD */
case 0x04: /* IMOD */
intr->imod = val;
break;
case 0x28: /* ERSTSZ */
case 0x08: /* ERSTSZ */
intr->erstsz = val & 0xffff;
break;
case 0x30: /* ERSTBA low */
case 0x10: /* ERSTBA low */
/* XXX NEC driver bug: it doesn't align this to 64 bytes
intr->erstba_low = val & 0xffffffc0; */
intr->erstba_low = val & 0xfffffff0;
break;
case 0x34: /* ERSTBA high */
case 0x14: /* ERSTBA high */
intr->erstba_high = val;
xhci_er_reset(xhci, 0);
xhci_er_reset(xhci, v);
break;
case 0x38: /* ERDP low */
case 0x18: /* ERDP low */
if (val & ERDP_EHB) {
intr->erdp_low &= ~ERDP_EHB;
}
intr->erdp_low = (val & ~ERDP_EHB) | (intr->erdp_low & ERDP_EHB);
break;
case 0x3c: /* ERDP high */
case 0x1c: /* ERDP high */
intr->erdp_high = val;
xhci_events_update(xhci, 0);
xhci_events_update(xhci, v);
break;
default:
fprintf(stderr, "xhci_oper_write: reg 0x%x unimplemented\n", reg);