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intel-hda: add msi support 

This patch adds MSI support to the intel hda audio driver.  It is
enabled by default, use '-device intel-hda,msi=0' to disable it.

[ v2: codestyle: add braces ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
This commit is contained in:
Gerd Hoffmann 2010-11-09 11:47:48 +01:00 committed by malc
parent 6a0d02f5be
commit 17786d52ac
1 changed files with 31 additions and 2 deletions
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33
hw/intel-hda.c
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@ -19,6 +19,7 @@
#include "hw.h"
#include "pci.h"
#include "msi.h"
#include "qemu-timer.h"
#include "audiodev.h"
#include "intel-hda.h"
@ -188,6 +189,7 @@ struct IntelHDAState {
/* properties */
uint32_t debug;
uint32_t msi;
};
struct IntelHDAReg {
@ -268,6 +270,7 @@ static void intel_hda_update_int_sts(IntelHDAState *d)
static void intel_hda_update_irq(IntelHDAState *d)
{
int msi = d->msi && msi_enabled(&d->pci);
int level;
intel_hda_update_int_sts(d);
@ -276,8 +279,15 @@ static void intel_hda_update_irq(IntelHDAState *d)
} else {
level = 0;
}
dprint(d, 2, "%s: level %d\n", __FUNCTION__, level);
qemu_set_irq(d->pci.irq[0], level);
dprint(d, 2, "%s: level %d [%s]\n", __FUNCTION__,
level, msi ? "msi" : "intx");
if (msi) {
if (level) {
msi_notify(&d->pci, 0);
}
} else {
qemu_set_irq(d->pci.irq[0], level);
}
}
static int intel_hda_send_command(IntelHDAState *d, uint32_t verb)
@ -1148,6 +1158,9 @@ static int intel_hda_init(PCIDevice *pci)
intel_hda_mmio_write, d);
pci_register_bar(&d->pci, 0, 0x4000, PCI_BASE_ADDRESS_SPACE_MEMORY,
intel_hda_map);
if (d->msi) {
msi_init(&d->pci, 0x50, 1, true, false);
}
hda_codec_bus_init(&d->pci.qdev, &d->codecs,
intel_hda_response, intel_hda_xfer);
@ -1159,10 +1172,24 @@ static int intel_hda_exit(PCIDevice *pci)
{
IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
if (d->msi) {
msi_uninit(&d->pci);
}
cpu_unregister_io_memory(d->mmio_addr);
return 0;
}
static void intel_hda_write_config(PCIDevice *pci, uint32_t addr,
uint32_t val, int len)
{
IntelHDAState *d = DO_UPCAST(IntelHDAState, pci, pci);
pci_default_write_config(pci, addr, val, len);
if (d->msi) {
msi_write_config(pci, addr, val, len);
}
}
static int intel_hda_post_load(void *opaque, int version)
{
IntelHDAState* d = opaque;
@ -1246,8 +1273,10 @@ static PCIDeviceInfo intel_hda_info = {
.qdev.reset = intel_hda_reset,
.init = intel_hda_init,
.exit = intel_hda_exit,
.config_write = intel_hda_write_config,
.qdev.props = (Property[]) {
DEFINE_PROP_UINT32("debug", IntelHDAState, debug, 0),
DEFINE_PROP_UINT32("msi", IntelHDAState, msi, 1),
DEFINE_PROP_END_OF_LIST(),
}
};