2 * QEMU OldWorld PowerMac (currently ~G3 B&W) hardware System Emulator
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
38 /* temporary frame buffer OSI calls for the video.x driver. The right
39 solution is to modify the driver to use VGA PCI I/Os */
40 /* XXX: to be removed. This is no way related to emulation */
41 static int vga_osi_call (CPUState
*env
)
43 static int vga_vbl_enabled
;
46 // printf("osi_call R5=" REGX "\n", ppc_dump_gpr(env, 5));
48 /* same handler as PearPC, coming from the original MOL video
53 case 28: /* set_vmode */
54 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0)
59 case 29: /* get_vmode_info */
60 if (env
->gpr
[6] != 0) {
61 if (env
->gpr
[6] != 1 || env
->gpr
[7] != 0) {
67 env
->gpr
[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
68 env
->gpr
[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
69 env
->gpr
[6] = (graphic_width
<< 16) | graphic_height
; /* w, h */
70 env
->gpr
[7] = 85 << 16; /* refresh rate */
71 env
->gpr
[8] = (graphic_depth
+ 7) & ~7; /* depth (round to byte) */
72 linesize
= ((graphic_depth
+ 7) >> 3) * graphic_width
;
73 linesize
= (linesize
+ 3) & ~3;
74 env
->gpr
[9] = (linesize
<< 16) | 0; /* row_bytes, offset */
76 case 31: /* set_video power */
79 case 39: /* video_ctrl */
80 if (env
->gpr
[6] == 0 || env
->gpr
[6] == 1)
81 vga_vbl_enabled
= env
->gpr
[6];
86 case 59: /* set_color */
87 /* R6 = index, R7 = RGB */
90 case 64: /* get color */
94 case 116: /* set hwcursor */
95 /* R6 = x, R7 = y, R8 = visible, R9 = data */
98 fprintf(stderr
, "unsupported OSI call R5=" REGX
"\n",
99 ppc_dump_gpr(env
, 5));
103 return 1; /* osi_call handled */
106 static void ppc_heathrow_init (ram_addr_t ram_size
, int vga_ram_size
,
107 const char *boot_device
, DisplayState
*ds
,
108 const char *kernel_filename
,
109 const char *kernel_cmdline
,
110 const char *initrd_filename
,
111 const char *cpu_model
)
113 CPUState
*env
= NULL
, *envs
[MAX_CPUS
];
115 qemu_irq
*pic
, **heathrow_irqs
;
119 unsigned long bios_offset
, vga_bios_offset
;
120 uint32_t kernel_base
, kernel_size
, initrd_base
, initrd_size
;
122 MacIONVRAMState
*nvr
;
123 int vga_bios_size
, bios_size
;
125 int pic_mem_index
, nvram_mem_index
, dbdma_mem_index
, cuda_mem_index
;
126 int ide_mem_index
[2];
128 BlockDriverState
*hd
[MAX_IDE_BUS
* MAX_IDE_DEVS
];
131 linux_boot
= (kernel_filename
!= NULL
);
134 if (cpu_model
== NULL
)
135 cpu_model
= "default";
136 for (i
= 0; i
< smp_cpus
; i
++) {
137 env
= cpu_init(cpu_model
);
139 fprintf(stderr
, "Unable to find PowerPC CPU definition\n");
142 /* Set time-base frequency to 100 Mhz */
143 cpu_ppc_tb_init(env
, 100UL * 1000UL * 1000UL);
144 env
->osi_call
= vga_osi_call
;
145 qemu_register_reset(&cpu_ppc_reset
, env
);
148 if (env
->nip
< 0xFFF80000) {
149 /* Special test for PowerPC 601:
150 * the boot vector is at 0xFFF00100, then we need a 1MB BIOS.
151 * But the NVRAM is located at 0xFFF04000...
153 cpu_abort(env
, "G3BW Mac hardware can not handle 1 MB BIOS\n");
157 cpu_register_physical_memory(0, ram_size
, IO_MEM_RAM
);
159 /* allocate and load BIOS */
160 bios_offset
= ram_size
+ vga_ram_size
;
161 if (bios_name
== NULL
)
162 bios_name
= BIOS_FILENAME
;
163 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, bios_name
);
164 bios_size
= load_image(buf
, phys_ram_base
+ bios_offset
);
165 if (bios_size
< 0 || bios_size
> BIOS_SIZE
) {
166 cpu_abort(env
, "qemu: could not load PowerPC bios '%s'\n", buf
);
169 bios_size
= (bios_size
+ 0xfff) & ~0xfff;
170 if (bios_size
> 0x00080000) {
171 /* As the NVRAM is located at 0xFFF04000, we cannot use 1 MB BIOSes */
172 cpu_abort(env
, "G3BW Mac hardware can not handle 1 MB BIOS\n");
174 cpu_register_physical_memory((uint32_t)(-bios_size
),
175 bios_size
, bios_offset
| IO_MEM_ROM
);
177 /* allocate and load VGA BIOS */
178 vga_bios_offset
= bios_offset
+ bios_size
;
179 snprintf(buf
, sizeof(buf
), "%s/%s", bios_dir
, VGABIOS_FILENAME
);
180 vga_bios_size
= load_image(buf
, phys_ram_base
+ vga_bios_offset
+ 8);
181 if (vga_bios_size
< 0) {
182 /* if no bios is present, we can still work */
183 fprintf(stderr
, "qemu: warning: could not load VGA bios '%s'\n", buf
);
186 /* set a specific header (XXX: find real Apple format for NDRV
188 phys_ram_base
[vga_bios_offset
] = 'N';
189 phys_ram_base
[vga_bios_offset
+ 1] = 'D';
190 phys_ram_base
[vga_bios_offset
+ 2] = 'R';
191 phys_ram_base
[vga_bios_offset
+ 3] = 'V';
192 cpu_to_be32w((uint32_t *)(phys_ram_base
+ vga_bios_offset
+ 4),
196 vga_bios_size
= (vga_bios_size
+ 0xfff) & ~0xfff;
199 kernel_base
= KERNEL_LOAD_ADDR
;
200 /* now we can load the kernel */
201 kernel_size
= load_image(kernel_filename
, phys_ram_base
+ kernel_base
);
202 if (kernel_size
< 0) {
203 cpu_abort(env
, "qemu: could not load kernel '%s'\n",
208 if (initrd_filename
) {
209 initrd_base
= INITRD_LOAD_ADDR
;
210 initrd_size
= load_image(initrd_filename
,
211 phys_ram_base
+ initrd_base
);
212 if (initrd_size
< 0) {
213 cpu_abort(env
, "qemu: could not load initial ram disk '%s'\n",
221 ppc_boot_device
= 'm';
227 ppc_boot_device
= '\0';
228 for (i
= 0; boot_device
[i
] != '\0'; i
++) {
229 /* TOFIX: for now, the second IDE channel is not properly
230 * used by OHW. The Mac floppy disk are not emulated.
231 * For now, OHW cannot boot from the network.
234 if (boot_device
[i
] >= 'a' && boot_device
[i
] <= 'f') {
235 ppc_boot_device
= boot_device
[i
];
239 if (boot_device
[i
] >= 'c' && boot_device
[i
] <= 'd') {
240 ppc_boot_device
= boot_device
[i
];
245 if (ppc_boot_device
== '\0') {
246 fprintf(stderr
, "No valid boot device for Mac99 machine\n");
251 isa_mem_base
= 0x80000000;
253 /* Register 2 MB of ISA IO space */
254 isa_mmio_init(0xfe000000, 0x00200000);
256 /* XXX: we register only 1 output pin for heathrow PIC */
257 heathrow_irqs
= qemu_mallocz(smp_cpus
* sizeof(qemu_irq
*));
259 qemu_mallocz(smp_cpus
* sizeof(qemu_irq
) * 1);
260 /* Connect the heathrow PIC outputs to the 6xx bus */
261 for (i
= 0; i
< smp_cpus
; i
++) {
262 switch (PPC_INPUT(env
)) {
263 case PPC_FLAGS_INPUT_6xx
:
264 heathrow_irqs
[i
] = heathrow_irqs
[0] + (i
* 1);
265 heathrow_irqs
[i
][0] =
266 ((qemu_irq
*)env
->irq_inputs
)[PPC6xx_INPUT_INT
];
269 cpu_abort(env
, "Bus model not supported on OldWorld Mac machine\n");
274 /* init basic PC hardware */
275 if (PPC_INPUT(env
) != PPC_FLAGS_INPUT_6xx
) {
276 cpu_abort(env
, "Only 6xx bus is supported on heathrow machine\n");
279 pic
= heathrow_pic_init(&pic_mem_index
, 1, heathrow_irqs
);
280 pci_bus
= pci_grackle_init(0xfec00000, pic
);
281 pci_vga_init(pci_bus
, ds
, phys_ram_base
+ ram_size
,
282 ram_size
, vga_ram_size
,
283 vga_bios_offset
, vga_bios_size
);
285 /* XXX: suppress that */
286 dummy_irq
= i8259_init(NULL
);
288 /* XXX: use Mac Serial port */
289 serial_init(0x3f8, dummy_irq
[4], 115200, serial_hds
[0]);
291 for(i
= 0; i
< nb_nics
; i
++) {
292 if (!nd_table
[i
].model
)
293 nd_table
[i
].model
= "ne2k_pci";
294 pci_nic_init(pci_bus
, &nd_table
[i
], -1);
297 /* First IDE channel is a CMD646 on the PCI bus */
299 if (drive_get_max_bus(IF_IDE
) >= MAX_IDE_BUS
) {
300 fprintf(stderr
, "qemu: too many IDE bus\n");
303 index
= drive_get_index(IF_IDE
, 0, 0);
307 hd
[0] = drives_table
[index
].bdrv
;
308 index
= drive_get_index(IF_IDE
, 0, 1);
312 hd
[1] = drives_table
[index
].bdrv
;
313 hd
[3] = hd
[2] = NULL
;
314 pci_cmd646_ide_init(pci_bus
, hd
, 0);
316 /* Second IDE channel is a MAC IDE on the MacIO bus */
317 index
= drive_get_index(IF_IDE
, 1, 0);
321 hd
[0] = drives_table
[index
].bdrv
;
322 index
= drive_get_index(IF_IDE
, 1, 1);
326 hd
[1] = drives_table
[index
].bdrv
;
327 ide_mem_index
[0] = -1;
328 ide_mem_index
[1] = pmac_ide_init(hd
, pic
[0x0D]);
330 /* cuda also initialize ADB */
331 cuda_init(&cuda_mem_index
, pic
[0x12]);
333 adb_kbd_init(&adb_bus
);
334 adb_mouse_init(&adb_bus
);
336 nvr
= macio_nvram_init(&nvram_mem_index
, 0x2000);
337 pmac_format_nvram_partition(nvr
, 0x2000);
339 dbdma_init(&dbdma_mem_index
);
341 macio_init(pci_bus
, 0x0017, 1, pic_mem_index
, dbdma_mem_index
,
342 cuda_mem_index
, nvr
, 2, ide_mem_index
);
345 usb_ohci_init_pci(pci_bus
, 3, -1);
348 if (graphic_depth
!= 15 && graphic_depth
!= 32 && graphic_depth
!= 8)
351 m48t59
= m48t59_init(dummy_irq
[8], 0xFFF04000, 0x0074, NVRAM_SIZE
, 59);
352 nvram
.opaque
= m48t59
;
353 nvram
.read_fn
= &m48t59_read
;
354 nvram
.write_fn
= &m48t59_write
;
355 PPC_NVRAM_set_params(&nvram
, NVRAM_SIZE
, "HEATHROW", ram_size
,
356 ppc_boot_device
, kernel_base
, kernel_size
,
358 initrd_base
, initrd_size
,
359 /* XXX: need an option to load a NVRAM image */
361 graphic_width
, graphic_height
, graphic_depth
);
362 /* No PCI init: the BIOS will do it */
364 /* Special port to get debug messages from Open-Firmware */
365 register_ioport_write(0x0F00, 4, 1, &PPC_debug_write
, NULL
);
368 QEMUMachine heathrow_machine
= {
370 .desc
= "Heathrow based PowerMAC",
371 .init
= ppc_heathrow_init
,
372 .ram_require
= BIOS_SIZE
+ VGA_RAM_SIZE
,
373 .max_cpus
= MAX_CPUS
,