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/*
* SuperH on-chip PCIC emulation.
*
* Copyright (c) 2008 Takashi YOSHII
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "sh.h"
#include "pci.h"
#include "pci_host.h"
#include "sh_pci.h"
#include "bswap.h"
typedef struct {
PCIBus *bus;
PCIDevice *dev;
uint32_t par;
uint32_t mbr;
uint32_t iobr;
} SHPCIC;
static void sh_pci_reg_write (void *p, target_phys_addr_t addr, uint32_t val)
{
SHPCIC *pcic = p;
switch(addr) {
case 0 ... 0xfc:
cpu_to_le32w((uint32_t*)(pcic->dev->config + addr), val);
break;
case 0x1c0:
pcic->par = val;
break;
case 0x1c4:
pcic->mbr = val & 0xff000001;
break;
case 0x1c8:
if ((val & 0xfffc0000) != (pcic->iobr & 0xfffc0000)) {
cpu_register_physical_memory(pcic->iobr & 0xfffc0000, 0x40000,
IO_MEM_UNASSIGNED);
pcic->iobr = val & 0xfffc0001;
isa_mmio_init(pcic->iobr & 0xfffc0000, 0x40000, 0);
}
break;
case 0x220:
pci_data_write(pcic->bus, pcic->par, val, 4);
break;
}
}
static uint32_t sh_pci_reg_read (void *p, target_phys_addr_t addr)
{
SHPCIC *pcic = p;
switch(addr) {
case 0 ... 0xfc:
return le32_to_cpup((uint32_t*)(pcic->dev->config + addr));
case 0x1c0:
return pcic->par;
case 0x1c4:
return pcic->mbr;
case 0x1c8:
return pcic->iobr;
case 0x220:
return pci_data_read(pcic->bus, pcic->par, 4);
}
return 0;
}
typedef struct {
CPUReadMemoryFunc * const r[3];
CPUWriteMemoryFunc * const w[3];
} MemOp;
static MemOp sh_pci_reg = {
{ NULL, NULL, sh_pci_reg_read },
{ NULL, NULL, sh_pci_reg_write },
};
PCIBus *sh_pci_register_bus(pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
void *opaque, int devfn_min, int nirq)
{
SHPCIC *p;
int reg;
p = qemu_mallocz(sizeof(SHPCIC));
p->bus = pci_register_bus(NULL, "pci",
set_irq, map_irq, opaque, devfn_min, nirq);
p->dev = pci_register_device(p->bus, "SH PCIC", sizeof(PCIDevice),
-1, NULL, NULL);
reg = cpu_register_io_memory(sh_pci_reg.r, sh_pci_reg.w, p);
cpu_register_physical_memory(0x1e200000, 0x224, reg);
cpu_register_physical_memory(0xfe200000, 0x224, reg);
p->iobr = 0xfe240000;
isa_mmio_init(p->iobr, 0x40000, 0);
pci_config_set_vendor_id(p->dev->config, PCI_VENDOR_ID_HITACHI);
pci_config_set_device_id(p->dev->config, PCI_DEVICE_ID_HITACHI_SH7751R);
p->dev->config[0x04] = 0x80;
p->dev->config[0x05] = 0x00;
p->dev->config[0x06] = 0x90;
p->dev->config[0x07] = 0x02;
return p->bus;
}
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