diff options
Diffstat (limited to 'hw/fdc.c')
| -rw-r--r-- | hw/fdc.c | 35 |
1 files changed, 29 insertions, 6 deletions
@@ -21,6 +21,10 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ +/* + * The controller is used in Sun4m systems in a slightly different + * way. There are changes in DOR register and DMA is not available. + */ #include "vl.h" /********************************************************/ @@ -90,6 +94,16 @@ typedef struct fdrive_t { uint8_t ro; /* Is read-only */ } fdrive_t; +#ifdef TARGET_SPARC +#define DMA_read_memory(a,b,c,d) +#define DMA_write_memory(a,b,c,d) +#define DMA_register_channel(a,b,c) +#define DMA_hold_DREQ(a) +#define DMA_release_DREQ(a) +#define DMA_get_channel_mode(a) (0) +#define DMA_schedule(a) +#endif + static void fd_init (fdrive_t *drv, BlockDriverState *bs) { /* Drive */ @@ -455,6 +469,18 @@ static void fdctrl_write (void *opaque, uint32_t reg, uint32_t value) } } +static CPUReadMemoryFunc *fdctrl_mem_read[3] = { + fdctrl_read, + fdctrl_read, + fdctrl_read, +}; + +static CPUWriteMemoryFunc *fdctrl_mem_write[3] = { + fdctrl_write, + fdctrl_write, + fdctrl_write, +}; + static void fd_change_cb (void *opaque) { fdrive_t *drv = opaque; @@ -473,7 +499,7 @@ fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped, BlockDriverState **fds) { fdctrl_t *fdctrl; -// int io_mem; + int io_mem; int i; FLOPPY_DPRINTF("init controller\n"); @@ -504,11 +530,8 @@ fdctrl_t *fdctrl_init (int irq_lvl, int dma_chann, int mem_mapped, fdctrl_reset(fdctrl, 0); fdctrl->state = FD_CTRL_ACTIVE; if (mem_mapped) { - FLOPPY_ERROR("memory mapped floppy not supported by now !\n"); -#if 0 - io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write); - cpu_register_physical_memory(base, 0x08, io_mem); -#endif + io_mem = cpu_register_io_memory(0, fdctrl_mem_read, fdctrl_mem_write, fdctrl); + cpu_register_physical_memory(io_base, 0x08, io_mem); } else { register_ioport_read(io_base + 0x01, 5, 1, &fdctrl_read, fdctrl); register_ioport_read(io_base + 0x07, 1, 1, &fdctrl_read, fdctrl); |