Annotation of qemu/hw/macio.c, revision 1.1.1.2

1.1       root        1: /*
                      2:  * PowerMac MacIO device emulation
                      3:  *
                      4:  * Copyright (c) 2005-2007 Fabrice Bellard
                      5:  * Copyright (c) 2007 Jocelyn Mayer
                      6:  *
                      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:
                     13:  *
                     14:  * The above copyright notice and this permission notice shall be included in
                     15:  * all copies or substantial portions of the Software.
                     16:  *
                     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
                     23:  * THE SOFTWARE.
                     24:  */
                     25: #include "hw.h"
                     26: #include "ppc_mac.h"
                     27: #include "pci.h"
1.1.1.2 ! root       28: #include "escc.h"
1.1       root       29: 
                     30: typedef struct macio_state_t macio_state_t;
                     31: struct macio_state_t {
                     32:     int is_oldworld;
                     33:     int pic_mem_index;
                     34:     int dbdma_mem_index;
                     35:     int cuda_mem_index;
1.1.1.2 ! root       36:     int escc_mem_index;
1.1       root       37:     void *nvram;
                     38:     int nb_ide;
                     39:     int ide_mem_index[4];
                     40: };
                     41: 
                     42: static void macio_map (PCIDevice *pci_dev, int region_num,
                     43:                        uint32_t addr, uint32_t size, int type)
                     44: {
                     45:     macio_state_t *macio_state;
                     46:     int i;
                     47: 
                     48:     macio_state = (macio_state_t *)(pci_dev + 1);
                     49:     if (macio_state->pic_mem_index >= 0) {
                     50:         if (macio_state->is_oldworld) {
                     51:             /* Heathrow PIC */
                     52:             cpu_register_physical_memory(addr + 0x00000, 0x1000,
                     53:                                          macio_state->pic_mem_index);
                     54:         } else {
                     55:             /* OpenPIC */
                     56:             cpu_register_physical_memory(addr + 0x40000, 0x40000,
                     57:                                          macio_state->pic_mem_index);
                     58:         }
                     59:     }
                     60:     if (macio_state->dbdma_mem_index >= 0) {
                     61:         cpu_register_physical_memory(addr + 0x08000, 0x1000,
                     62:                                      macio_state->dbdma_mem_index);
                     63:     }
1.1.1.2 ! root       64:     if (macio_state->escc_mem_index >= 0) {
        !            65:         cpu_register_physical_memory(addr + 0x13000, ESCC_SIZE << 4,
        !            66:                                      macio_state->escc_mem_index);
        !            67:     }
1.1       root       68:     if (macio_state->cuda_mem_index >= 0) {
                     69:         cpu_register_physical_memory(addr + 0x16000, 0x2000,
                     70:                                      macio_state->cuda_mem_index);
                     71:     }
                     72:     for (i = 0; i < macio_state->nb_ide; i++) {
                     73:         if (macio_state->ide_mem_index[i] >= 0) {
                     74:             cpu_register_physical_memory(addr + 0x1f000 + (i * 0x1000), 0x1000,
                     75:                                          macio_state->ide_mem_index[i]);
                     76:         }
                     77:     }
                     78:     if (macio_state->nvram != NULL)
                     79:         macio_nvram_map(macio_state->nvram, addr + 0x60000);
                     80: }
                     81: 
                     82: void macio_init (PCIBus *bus, int device_id, int is_oldworld, int pic_mem_index,
                     83:                  int dbdma_mem_index, int cuda_mem_index, void *nvram,
1.1.1.2 ! root       84:                  int nb_ide, int *ide_mem_index, int escc_mem_index)
1.1       root       85: {
                     86:     PCIDevice *d;
                     87:     macio_state_t *macio_state;
                     88:     int i;
                     89: 
                     90:     d = pci_register_device(bus, "macio",
                     91:                             sizeof(PCIDevice) + sizeof(macio_state_t),
                     92:                             -1, NULL, NULL);
                     93:     macio_state = (macio_state_t *)(d + 1);
                     94:     macio_state->is_oldworld = is_oldworld;
                     95:     macio_state->pic_mem_index = pic_mem_index;
                     96:     macio_state->dbdma_mem_index = dbdma_mem_index;
                     97:     macio_state->cuda_mem_index = cuda_mem_index;
1.1.1.2 ! root       98:     macio_state->escc_mem_index = escc_mem_index;
1.1       root       99:     macio_state->nvram = nvram;
                    100:     if (nb_ide > 4)
                    101:         nb_ide = 4;
                    102:     macio_state->nb_ide = nb_ide;
                    103:     for (i = 0; i < nb_ide; i++)
                    104:         macio_state->ide_mem_index[i] = ide_mem_index[i];
                    105:     for (; i < 4; i++)
                    106:         macio_state->ide_mem_index[i] = -1;
                    107:     /* Note: this code is strongly inspirated from the corresponding code
                    108:        in PearPC */
                    109: 
1.1.1.2 ! root      110:     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
        !           111:     pci_config_set_device_id(d->config, device_id);
        !           112:     pci_config_set_class(d->config, PCI_CLASS_OTHERS << 8);
1.1       root      113:     d->config[0x0e] = 0x00; // header_type
                    114: 
                    115:     d->config[0x3d] = 0x01; // interrupt on pin 1
                    116: 
                    117:     pci_register_io_region(d, 0, 0x80000,
                    118:                            PCI_ADDRESS_SPACE_MEM, macio_map);
                    119: }

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