diff options
Diffstat (limited to 'hw/ide/cmd646.c')
| -rw-r--r-- | hw/ide/cmd646.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/hw/ide/cmd646.c b/hw/ide/cmd646.c index d8395ef248..c3c6c53d91 100644 --- a/hw/ide/cmd646.c +++ b/hw/ide/cmd646.c @@ -33,9 +33,13 @@ #include <hw/ide/pci.h> /* CMD646 specific */ +#define CFR 0x50 +#define CFR_INTR_CH0 0x04 #define CNTRL 0x51 #define CNTRL_EN_CH0 0x04 #define CNTRL_EN_CH1 0x08 +#define ARTTIM23 0x57 +#define ARTTIM23_INTR_CH1 0x10 #define MRDMODE 0x71 #define MRDMODE_INTR_CH0 0x04 #define MRDMODE_INTR_CH1 0x08 @@ -126,6 +130,22 @@ static void setup_cmd646_bar(PCIIDEState *d, int bus_num) "cmd646-data", 8); } +static void cmd646_update_dma_interrupts(PCIDevice *pd) +{ + /* Sync DMA interrupt status from UDMA interrupt status */ + if (pd->config[MRDMODE] & MRDMODE_INTR_CH0) { + pd->config[CFR] |= CFR_INTR_CH0; + } else { + pd->config[CFR] &= ~CFR_INTR_CH0; + } + + if (pd->config[MRDMODE] & MRDMODE_INTR_CH1) { + pd->config[ARTTIM23] |= ARTTIM23_INTR_CH1; + } else { + pd->config[ARTTIM23] &= ~ARTTIM23_INTR_CH1; + } +} + static uint64_t bmdma_read(void *opaque, hwaddr addr, unsigned size) { @@ -184,6 +204,7 @@ static void bmdma_write(void *opaque, hwaddr addr, case 1: pci_dev->config[MRDMODE] = (pci_dev->config[MRDMODE] & ~0x30) | (val & 0x30); + cmd646_update_dma_interrupts(pci_dev); cmd646_update_irq(bm->pci_dev); break; case 2: @@ -249,6 +270,7 @@ static void cmd646_set_irq(void *opaque, int channel, int level) } else { pd->config[MRDMODE] &= ~irq_mask; } + cmd646_update_dma_interrupts(pd); cmd646_update_irq(d); } |