2 * QEMU OldWorld PowerMac (currently ~G3 Beige) 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
28 #include "mac_dbdma.h"
41 #define VGA_BIOS_SIZE 65536
42 #define CFG_ADDR 0xf0000510
44 /* temporary frame buffer OSI calls for the video.x driver. The right
45 solution is to modify the driver to use VGA PCI I/Os */
46 /* XXX: to be removed. This is no way related to emulation */
47 static int vga_osi_call (CPUState *env)
49 static int vga_vbl_enabled;
53 printf("osi_call R5=%016" PRIx64 "\n", ppc_dump_gpr(env, 5));
56 /* same handler as PearPC, coming from the original MOL video
61 case 28: /* set_vmode */
62 if (env->gpr[6] != 1 || env->gpr[7] != 0)
67 case 29: /* get_vmode_info */
68 if (env->gpr[6] != 0) {
69 if (env->gpr[6] != 1 || env->gpr[7] != 0) {
75 env->gpr[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
76 env->gpr[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
77 env->gpr[6] = (graphic_width << 16) | graphic_height; /* w, h */
78 env->gpr[7] = 85 << 16; /* refresh rate */
79 env->gpr[8] = (graphic_depth + 7) & ~7; /* depth (round to byte) */
80 linesize = ((graphic_depth + 7) >> 3) * graphic_width;
81 linesize = (linesize + 3) & ~3;
82 env->gpr[9] = (linesize << 16) | 0; /* row_bytes, offset */
84 case 31: /* set_video power */
87 case 39: /* video_ctrl */
88 if (env->gpr[6] == 0 || env->gpr[6] == 1)
89 vga_vbl_enabled = env->gpr[6];
94 case 59: /* set_color */
95 /* R6 = index, R7 = RGB */
98 case 64: /* get color */
102 case 116: /* set hwcursor */
103 /* R6 = x, R7 = y, R8 = visible, R9 = data */
106 fprintf(stderr, "unsupported OSI call R5=%016" PRIx64 "\n",
107 ppc_dump_gpr(env, 5));
111 return 1; /* osi_call handled */
114 static int fw_cfg_boot_set(void *opaque, const char *boot_device)
116 fw_cfg_add_i16(opaque, FW_CFG_BOOT_DEVICE, boot_device[0]);
120 static void ppc_heathrow_init (ram_addr_t ram_size,
121 const char *boot_device,
122 const char *kernel_filename,
123 const char *kernel_cmdline,
124 const char *initrd_filename,
125 const char *cpu_model)
127 CPUState *env = NULL, *envs[MAX_CPUS];
129 qemu_irq *pic, **heathrow_irqs;
131 ram_addr_t ram_offset, bios_offset, vga_bios_offset;
132 uint32_t kernel_base, initrd_base;
133 int32_t kernel_size, initrd_size;
135 MacIONVRAMState *nvr;
136 int vga_bios_size, bios_size;
137 int pic_mem_index, nvram_mem_index, dbdma_mem_index, cuda_mem_index;
138 int escc_mem_index, ide_mem_index[2];
139 uint16_t ppc_boot_device;
140 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
144 uint8_t *vga_bios_ptr;
146 linux_boot = (kernel_filename != NULL);
149 if (cpu_model == NULL)
151 for (i = 0; i < smp_cpus; i++) {
152 env = cpu_init(cpu_model);
154 fprintf(stderr, "Unable to find PowerPC CPU definition\n");
157 /* Set time-base frequency to 16.6 Mhz */
158 cpu_ppc_tb_init(env, 16600000UL);
159 env->osi_call = vga_osi_call;
160 qemu_register_reset(&cpu_ppc_reset, env);
165 if (ram_size > (2047 << 20)) {
167 "qemu: Too much memory for this machine: %d MB, maximum 2047 MB\n",
168 ((unsigned int)ram_size / (1 << 20)));
172 ram_offset = qemu_ram_alloc(ram_size);
173 cpu_register_physical_memory(0, ram_size, ram_offset);
175 /* allocate and load BIOS */
176 bios_offset = qemu_ram_alloc(BIOS_SIZE);
177 if (bios_name == NULL)
178 bios_name = PROM_FILENAME;
179 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
180 cpu_register_physical_memory(PROM_ADDR, BIOS_SIZE, bios_offset | IO_MEM_ROM);
182 /* Load OpenBIOS (ELF) */
184 bios_size = load_elf(filename, 0, NULL, NULL, NULL);
189 if (bios_size < 0 || bios_size > BIOS_SIZE) {
190 hw_error("qemu: could not load PowerPC bios '%s'\n", bios_name);
194 /* allocate and load VGA BIOS */
195 vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE);
196 vga_bios_ptr = qemu_get_ram_ptr(vga_bios_offset);
197 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, VGABIOS_FILENAME);
199 vga_bios_size = load_image(filename, vga_bios_ptr + 8);
204 if (vga_bios_size < 0) {
205 /* if no bios is present, we can still work */
206 fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n",
210 /* set a specific header (XXX: find real Apple format for NDRV
212 vga_bios_ptr[0] = 'N';
213 vga_bios_ptr[1] = 'D';
214 vga_bios_ptr[2] = 'R';
215 vga_bios_ptr[3] = 'V';
216 cpu_to_be32w((uint32_t *)(vga_bios_ptr + 4), vga_bios_size);
219 /* Round to page boundary */
220 vga_bios_size = (vga_bios_size + TARGET_PAGE_SIZE - 1) &
225 uint64_t lowaddr = 0;
226 kernel_base = KERNEL_LOAD_ADDR;
227 /* Now we can load the kernel. The first step tries to load the kernel
228 supposing PhysAddr = 0x00000000. If that was wrong the kernel is
229 loaded again, the new PhysAddr being computed from lowaddr. */
230 kernel_size = load_elf(kernel_filename, kernel_base, NULL, &lowaddr, NULL);
231 if (kernel_size > 0 && lowaddr != KERNEL_LOAD_ADDR) {
232 kernel_size = load_elf(kernel_filename, (2 * kernel_base) - lowaddr,
236 kernel_size = load_aout(kernel_filename, kernel_base,
237 ram_size - kernel_base);
239 kernel_size = load_image_targphys(kernel_filename,
241 ram_size - kernel_base);
242 if (kernel_size < 0) {
243 hw_error("qemu: could not load kernel '%s'\n",
248 if (initrd_filename) {
249 initrd_base = INITRD_LOAD_ADDR;
250 initrd_size = load_image_targphys(initrd_filename, initrd_base,
251 ram_size - initrd_base);
252 if (initrd_size < 0) {
253 hw_error("qemu: could not load initial ram disk '%s'\n",
261 ppc_boot_device = 'm';
267 ppc_boot_device = '\0';
268 for (i = 0; boot_device[i] != '\0'; i++) {
269 /* TOFIX: for now, the second IDE channel is not properly
270 * used by OHW. The Mac floppy disk are not emulated.
271 * For now, OHW cannot boot from the network.
274 if (boot_device[i] >= 'a' && boot_device[i] <= 'f') {
275 ppc_boot_device = boot_device[i];
279 if (boot_device[i] >= 'c' && boot_device[i] <= 'd') {
280 ppc_boot_device = boot_device[i];
285 if (ppc_boot_device == '\0') {
286 fprintf(stderr, "No valid boot device for G3 Beige machine\n");
291 isa_mem_base = 0x80000000;
293 /* Register 2 MB of ISA IO space */
294 isa_mmio_init(0xfe000000, 0x00200000);
296 /* XXX: we register only 1 output pin for heathrow PIC */
297 heathrow_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
299 qemu_mallocz(smp_cpus * sizeof(qemu_irq) * 1);
300 /* Connect the heathrow PIC outputs to the 6xx bus */
301 for (i = 0; i < smp_cpus; i++) {
302 switch (PPC_INPUT(env)) {
303 case PPC_FLAGS_INPUT_6xx:
304 heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
305 heathrow_irqs[i][0] =
306 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
309 hw_error("Bus model not supported on OldWorld Mac machine\n");
313 /* init basic PC hardware */
314 if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
315 hw_error("Only 6xx bus is supported on heathrow machine\n");
317 pic = heathrow_pic_init(&pic_mem_index, 1, heathrow_irqs);
318 pci_bus = pci_grackle_init(0xfec00000, pic);
319 pci_vga_init(pci_bus, vga_bios_offset, vga_bios_size);
321 escc_mem_index = escc_init(0x80013000, pic[0x0f], pic[0x10], serial_hds[0],
322 serial_hds[1], ESCC_CLOCK, 4);
324 for(i = 0; i < nb_nics; i++)
325 pci_nic_init(&nd_table[i], "ne2k_pci", NULL);
328 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
329 fprintf(stderr, "qemu: too many IDE bus\n");
333 /* First IDE channel is a MAC IDE on the MacIO bus */
334 dinfo = drive_get(IF_IDE, 0, 0);
335 hd[0] = dinfo ? dinfo->bdrv : NULL;
336 dinfo = drive_get(IF_IDE, 0, 1);
337 hd[1] = dinfo ? dinfo->bdrv : NULL;
338 dbdma = DBDMA_init(&dbdma_mem_index);
339 ide_mem_index[0] = -1;
340 ide_mem_index[1] = pmac_ide_init(hd, pic[0x0D], dbdma, 0x16, pic[0x02]);
342 /* Second IDE channel is a CMD646 on the PCI bus */
343 dinfo = drive_get(IF_IDE, 1, 0);
344 hd[0] = dinfo ? dinfo->bdrv : NULL;
345 dinfo = drive_get(IF_IDE, 1, 1);
346 hd[1] = dinfo ? dinfo->bdrv : NULL;
347 hd[3] = hd[2] = NULL;
348 pci_cmd646_ide_init(pci_bus, hd, 0);
350 /* cuda also initialize ADB */
351 cuda_init(&cuda_mem_index, pic[0x12]);
353 adb_kbd_init(&adb_bus);
354 adb_mouse_init(&adb_bus);
356 nvr = macio_nvram_init(&nvram_mem_index, 0x2000, 4);
357 pmac_format_nvram_partition(nvr, 0x2000);
359 macio_init(pci_bus, PCI_DEVICE_ID_APPLE_343S1201, 1, pic_mem_index,
360 dbdma_mem_index, cuda_mem_index, nvr, 2, ide_mem_index,
364 usb_ohci_init_pci(pci_bus, 3, -1);
367 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
370 /* No PCI init: the BIOS will do it */
372 fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
373 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
374 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
375 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_HEATHROW);
376 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_ADDR, kernel_base);
377 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_SIZE, kernel_size);
378 if (kernel_cmdline) {
379 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, CMDLINE_ADDR);
380 pstrcpy_targphys(CMDLINE_ADDR, TARGET_PAGE_SIZE, kernel_cmdline);
382 fw_cfg_add_i32(fw_cfg, FW_CFG_KERNEL_CMDLINE, 0);
384 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_ADDR, initrd_base);
385 fw_cfg_add_i32(fw_cfg, FW_CFG_INITRD_SIZE, initrd_size);
386 fw_cfg_add_i16(fw_cfg, FW_CFG_BOOT_DEVICE, ppc_boot_device);
388 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_WIDTH, graphic_width);
389 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_HEIGHT, graphic_height);
390 fw_cfg_add_i16(fw_cfg, FW_CFG_PPC_DEPTH, graphic_depth);
392 qemu_register_boot_set(fw_cfg_boot_set, fw_cfg);
395 static QEMUMachine heathrow_machine = {
397 .desc = "Heathrow based PowerMAC",
398 .init = ppc_heathrow_init,
399 .max_cpus = MAX_CPUS,
403 static void heathrow_machine_init(void)
405 qemu_register_machine(&heathrow_machine);
408 machine_init(heathrow_machine_init);