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more generic i8259 support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1487 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-07-02 18:11:44 +00:00
parent 73133662c6
commit 3de388f676
8 changed files with 141 additions and 77 deletions
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15
hw/ppc_prep.c
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@ -96,6 +96,14 @@ static uint32_t speaker_ioport_read(void *opaque, uint32_t addr)
return 0;
}
static void pic_irq_request(void *opaque, int level)
{
if (level)
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
else
cpu_reset_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
}
/* PCI intack register */
/* Read-only register (?) */
static void _PPC_intack_write (void *opaque, target_phys_addr_t addr, uint32_t value)
@ -108,7 +116,7 @@ static inline uint32_t _PPC_intack_read (target_phys_addr_t addr)
uint32_t retval = 0;
if (addr == 0xBFFFFFF0)
retval = pic_intack_read(NULL);
retval = pic_intack_read(isa_pic);
// printf("%s: 0x%08x <= %d\n", __func__, addr, retval);
return retval;
@ -505,8 +513,6 @@ CPUReadMemoryFunc *PPC_prep_io_read[] = {
&PPC_prep_io_readl,
};
extern CPUPPCState *global_env;
#define NVRAM_SIZE 0x2000
/* PowerPC PREP hardware initialisation */
@ -593,8 +599,7 @@ static void ppc_prep_init(int ram_size, int vga_ram_size, int boot_device,
vga_ram_size);
rtc_init(0x70, 8);
// openpic = openpic_init(0x00000000, 0xF0000000, 1);
// pic_init(openpic);
pic_init();
isa_pic = pic_init(pic_irq_request, cpu_single_env);
// pit = pit_init(0x40, 0);
serial_init(0x3f8, 4, serial_hds[0]);