diff options
Diffstat (limited to 'include/hw/isa/i8257.h')
| -rw-r--r-- | include/hw/isa/i8257.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/hw/isa/i8257.h b/include/hw/isa/i8257.h new file mode 100644 index 0000000000..8d34ed17b7 --- /dev/null +++ b/include/hw/isa/i8257.h @@ -0,0 +1,42 @@ +#ifndef HW_I8257_H +#define HW_I8257_H + +#define TYPE_I8257 "i8257" + +typedef struct I8257Regs { + int now[2]; + uint16_t base[2]; + uint8_t mode; + uint8_t page; + uint8_t pageh; + uint8_t dack; + uint8_t eop; + DMA_transfer_handler transfer_handler; + void *opaque; +} I8257Regs; + +typedef struct I8257State { + /* <private> */ + ISADevice parent_obj; + + /* <public> */ + int32_t base; + int32_t page_base; + int32_t pageh_base; + int32_t dshift; + + uint8_t status; + uint8_t command; + uint8_t mask; + uint8_t flip_flop; + I8257Regs regs[4]; + MemoryRegion channel_io; + MemoryRegion cont_io; + + QEMUBH *dma_bh; + bool dma_bh_scheduled; + int running; +} I8257State; + +#endif + |