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target-mips: DMA support for RC4030 chipset

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Attached patch implements DMA support to RC4030 chipset and simplifies
jazz IO part (at 0xf0000000), where registers contain 16 bit values.
Config register has not a clear meaning (only one value is always valid,
and sometimes another one), so use a magic value instead.
The patch also wires DMA transfers for the SCSI adapter in the Jazz
emulation (Mips Magnum 4000 and Acer Pica 61).

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6145 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2009-01-01 13:03:36 +00:00
parent 3aa9bd6c35
commit c6945b153c
3 changed files with 250 additions and 96 deletions
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6
hw/mips.h
View file

@ -27,6 +27,10 @@ extern void cpu_mips_irq_init_cpu(CPUState *env);
extern void cpu_mips_clock_init(CPUState *);
/* rc4030.c */
qemu_irq *rc4030_init(qemu_irq timer, qemu_irq jazz_bus);
typedef struct rc4030DMAState *rc4030_dma;
typedef void (*rc4030_dma_function)(void *dma, uint8_t *buf, int len);
qemu_irq *rc4030_init(qemu_irq timer, qemu_irq jazz_bus,
rc4030_dma **dmas,
rc4030_dma_function *dma_read, rc4030_dma_function *dma_write);
#endif