diff options
Diffstat (limited to 'hw/r2d.c')
| -rw-r--r-- | hw/r2d.c | 68 |
1 files changed, 63 insertions, 5 deletions
@@ -34,12 +34,14 @@ #define SM501_VRAM_SIZE 0x800000 +#define PA_IRLMSK 0x00 #define PA_POWOFF 0x30 #define PA_VERREG 0x32 #define PA_OUTPORT 0x36 typedef struct { uint16_t bcr; + uint16_t irlmsk; uint16_t irlmon; uint16_t cfctl; uint16_t cfpow; @@ -60,13 +62,60 @@ typedef struct { uint16_t inport; uint16_t outport; uint16_t bverreg; + +/* output pin */ + qemu_irq irl; } r2d_fpga_t; +enum r2d_fpga_irq { + PCI_INTD, CF_IDE, CF_CD, PCI_INTC, SM501, KEY, RTC_A, RTC_T, + SDCARD, PCI_INTA, PCI_INTB, EXT, TP, + NR_IRQS +}; + +static const struct { short irl; uint16_t msk; } irqtab[NR_IRQS] = { + [CF_IDE] = { 1, 1<<9 }, + [CF_CD] = { 2, 1<<8 }, + [PCI_INTA] = { 9, 1<<14 }, + [PCI_INTB] = { 10, 1<<13 }, + [PCI_INTC] = { 3, 1<<12 }, + [PCI_INTD] = { 0, 1<<11 }, + [SM501] = { 4, 1<<10 }, + [KEY] = { 5, 1<<6 }, + [RTC_A] = { 6, 1<<5 }, + [RTC_T] = { 7, 1<<4 }, + [SDCARD] = { 8, 1<<7 }, + [EXT] = { 11, 1<<0 }, + [TP] = { 12, 1<<15 }, +}; + +static void update_irl(r2d_fpga_t *fpga) +{ + int i, irl = 15; + for (i = 0; i < NR_IRQS; i++) + if (fpga->irlmon & fpga->irlmsk & irqtab[i].msk) + if (irqtab[i].irl < irl) + irl = irqtab[i].irl; + qemu_set_irq(fpga->irl, irl ^ 15); +} + +static void r2d_fpga_irq_set(void *opaque, int n, int level) +{ + r2d_fpga_t *fpga = opaque; + if (level) + fpga->irlmon |= irqtab[n].msk; + else + fpga->irlmon &= ~irqtab[n].msk; + update_irl(fpga); +} + static uint32_t r2d_fpga_read(void *opaque, target_phys_addr_t addr) { r2d_fpga_t *s = opaque; switch (addr) { + case PA_IRLMSK: + return s->irlmsk; case PA_OUTPORT: return s->outport; case PA_POWOFF: @@ -84,6 +133,10 @@ r2d_fpga_write(void *opaque, target_phys_addr_t addr, uint32_t value) r2d_fpga_t *s = opaque; switch (addr) { + case PA_IRLMSK: + s->irlmsk = value; + update_irl(s); + break; case PA_OUTPORT: s->outport = value; break; @@ -108,18 +161,21 @@ static CPUWriteMemoryFunc *r2d_fpga_writefn[] = { NULL, }; -static void r2d_fpga_init(target_phys_addr_t base) +static qemu_irq *r2d_fpga_init(target_phys_addr_t base, qemu_irq irl) { int iomemtype; r2d_fpga_t *s; s = qemu_mallocz(sizeof(r2d_fpga_t)); if (!s) - return; + return NULL; + + s->irl = irl; iomemtype = cpu_register_io_memory(0, r2d_fpga_readfn, r2d_fpga_writefn, s); cpu_register_physical_memory(base, 0x40, iomemtype); + return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS); } static void r2d_init(ram_addr_t ram_size, int vga_ram_size, @@ -130,6 +186,7 @@ static void r2d_init(ram_addr_t ram_size, int vga_ram_size, CPUState *env; struct SH7750State *s; ram_addr_t sdram_addr, sm501_vga_ram_addr; + qemu_irq *irq; if (!cpu_model) cpu_model = "SH7751R"; @@ -144,15 +201,16 @@ static void r2d_init(ram_addr_t ram_size, int vga_ram_size, sdram_addr = qemu_ram_alloc(SDRAM_SIZE); cpu_register_physical_memory(SDRAM_BASE, SDRAM_SIZE, sdram_addr); /* Register peripherals */ - r2d_fpga_init(0x04000000); s = sh7750_init(env); + irq = r2d_fpga_init(0x04000000, sh7750_irl(s)); + sm501_vga_ram_addr = qemu_ram_alloc(SM501_VRAM_SIZE); sm501_init(ds, 0x10000000, sm501_vga_ram_addr, SM501_VRAM_SIZE, serial_hds[2]); /* onboard CF (True IDE mode, Master only). */ - mmio_ide_init(0x14001000, 0x1400080c, NULL, 1, - drives_table[drive_get_index(IF_IDE, 0, 0)].bdrv, NULL); + mmio_ide_init(0x14001000, 0x1400080c, irq[CF_IDE], 1, + drives_table[drive_get_index(IF_IDE, 0, 0)].bdrv, NULL); /* Todo: register on board registers */ { |