haraldwolff/qemu-patch-raspberry4
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cmd646: allow MRDMODE interrupt status bits clearing from PCI config space

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Make sure that we also update the normal DMA interrupt status bits at the
same time, and alter the IRQ if being cleared accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Mark Cave-Ayland 2014-08-08 17:23:35 +01:00 committed by Stefan Hajnoczi
parent dab91a1e13
commit 1d113ef874
1 changed files with 30 additions and 2 deletions
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32
hw/ide/cmd646.c
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@ -243,8 +243,6 @@ static void bmdma_setup_bar(PCIIDEState *d)
}
}
/* XXX: call it also when the MRDMODE is changed from the PCI config
registers */
static void cmd646_update_irq(PCIDevice *pd)
{
int pci_level;
@ -283,6 +281,30 @@ static void cmd646_reset(void *opaque)
}
}
static uint32_t cmd646_pci_config_read(PCIDevice *d,
uint32_t address, int len)
{
return pci_default_read_config(d, address, len);
}
static void cmd646_pci_config_write(PCIDevice *d, uint32_t addr, uint32_t val,
int l)
{
uint32_t i;
pci_default_write_config(d, addr, val, l);
for (i = addr; i < addr + l; i++) {
switch (i) {
case MRDMODE:
cmd646_update_dma_interrupts(d);
break;
}
}
cmd646_update_irq(d);
}
/* CMD646 PCI IDE controller */
static int pci_cmd646_ide_initfn(PCIDevice *dev)
{
@ -299,6 +321,10 @@ static int pci_cmd646_ide_initfn(PCIDevice *dev)
pci_conf[CNTRL] |= CNTRL_EN_CH1; /* enable IDE1 */
}
/* Set write-to-clear interrupt bits */
dev->wmask[MRDMODE] = 0x0;
dev->w1cmask[MRDMODE] = MRDMODE_INTR_CH0 | MRDMODE_INTR_CH1;
setup_cmd646_bar(d, 0);
setup_cmd646_bar(d, 1);
pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &d->cmd646_bar[0].data);
@ -371,6 +397,8 @@ static void cmd646_ide_class_init(ObjectClass *klass, void *data)
k->device_id = PCI_DEVICE_ID_CMD_646;
k->revision = 0x07;
k->class_id = PCI_CLASS_STORAGE_IDE;
k->config_read = cmd646_pci_config_read;
k->config_write = cmd646_pci_config_write;
dc->props = cmd646_ide_properties;
}