Annotation of qemu/hw/grackle_pci.c, revision 1.1.1.7

1.1       root        1: /*
1.1.1.3   root        2:  * QEMU Grackle PCI host (heathrow OldWorld PowerMac)
                      3:  *
                      4:  * Copyright (c) 2006-2007 Fabrice Bellard
                      5:  * Copyright (c) 2007 Jocelyn Mayer
1.1       root        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: 
1.1.1.6   root       26: #include "sysbus.h"
1.1.1.3   root       27: #include "ppc_mac.h"
                     28: #include "pci.h"
1.1.1.6   root       29: #include "pci_host.h"
1.1.1.3   root       30: 
1.1.1.4   root       31: /* debug Grackle */
                     32: //#define DEBUG_GRACKLE
                     33: 
                     34: #ifdef DEBUG_GRACKLE
1.1.1.5   root       35: #define GRACKLE_DPRINTF(fmt, ...)                               \
                     36:     do { printf("GRACKLE: " fmt , ## __VA_ARGS__); } while (0)
1.1.1.4   root       37: #else
1.1.1.5   root       38: #define GRACKLE_DPRINTF(fmt, ...)
1.1.1.4   root       39: #endif
                     40: 
1.1.1.6   root       41: typedef struct GrackleState {
                     42:     SysBusDevice busdev;
                     43:     PCIHostState host_state;
                     44: } GrackleState;
1.1       root       45: 
1.1.1.2   root       46: /* Don't know if this matches real hardware, but it agrees with OHW.  */
                     47: static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
1.1       root       48: {
1.1.1.2   root       49:     return (irq_num + (pci_dev->devfn >> 3)) & 3;
                     50: }
                     51: 
1.1.1.6   root       52: static void pci_grackle_set_irq(void *opaque, int irq_num, int level)
1.1.1.2   root       53: {
1.1.1.6   root       54:     qemu_irq *pic = opaque;
                     55: 
1.1.1.4   root       56:     GRACKLE_DPRINTF("set_irq num %d level %d\n", irq_num, level);
1.1.1.3   root       57:     qemu_set_irq(pic[irq_num + 0x15], level);
1.1       root       58: }
                     59: 
1.1.1.4   root       60: static void pci_grackle_save(QEMUFile* f, void *opaque)
                     61: {
                     62:     PCIDevice *d = opaque;
                     63: 
                     64:     pci_device_save(d, f);
                     65: }
                     66: 
                     67: static int pci_grackle_load(QEMUFile* f, void *opaque, int version_id)
                     68: {
                     69:     PCIDevice *d = opaque;
                     70: 
                     71:     if (version_id != 1)
                     72:         return -EINVAL;
                     73: 
                     74:     return pci_device_load(d, f);
                     75: }
                     76: 
                     77: static void pci_grackle_reset(void *opaque)
                     78: {
                     79: }
                     80: 
1.1.1.3   root       81: PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
1.1       root       82: {
1.1.1.6   root       83:     DeviceState *dev;
                     84:     SysBusDevice *s;
                     85:     GrackleState *d;
                     86: 
                     87:     dev = qdev_create(NULL, "grackle");
                     88:     qdev_init_nofail(dev);
                     89:     s = sysbus_from_qdev(dev);
                     90:     d = FROM_SYSBUS(GrackleState, s);
                     91:     d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
                     92:                                          pci_grackle_set_irq,
                     93:                                          pci_grackle_map_irq,
                     94:                                          pic, 0, 4);
                     95: 
                     96:     pci_create_simple(d->host_state.bus, 0, "grackle");
                     97: 
                     98:     sysbus_mmio_map(s, 0, base);
                     99:     sysbus_mmio_map(s, 1, base + 0x00200000);
                    100: 
                    101:     return d->host_state.bus;
                    102: }
                    103: 
                    104: static int pci_grackle_init_device(SysBusDevice *dev)
                    105: {
1.1       root      106:     GrackleState *s;
                    107:     int pci_mem_config, pci_mem_data;
                    108: 
1.1.1.6   root      109:     s = FROM_SYSBUS(GrackleState, dev);
                    110: 
1.1.1.7 ! root      111:     pci_mem_config = pci_host_conf_register_mmio(&s->host_state, 1);
        !           112:     pci_mem_data = pci_host_data_register_mmio(&s->host_state, 1);
1.1.1.6   root      113:     sysbus_init_mmio(dev, 0x1000, pci_mem_config);
                    114:     sysbus_init_mmio(dev, 0x1000, pci_mem_data);
                    115: 
1.1.1.7 ! root      116:     register_savevm(&dev->qdev, "grackle", 0, 1, pci_grackle_save,
        !           117:                     pci_grackle_load, &s->host_state);
1.1.1.6   root      118:     qemu_register_reset(pci_grackle_reset, &s->host_state);
                    119:     return 0;
                    120: }
                    121: 
                    122: static int grackle_pci_host_init(PCIDevice *d)
                    123: {
1.1.1.4   root      124:     pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_MOTOROLA);
                    125:     pci_config_set_device_id(d->config, PCI_DEVICE_ID_MOTOROLA_MPC106);
1.1       root      126:     d->config[0x08] = 0x00; // revision
                    127:     d->config[0x09] = 0x01;
1.1.1.4   root      128:     pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
1.1.1.6   root      129:     return 0;
                    130: }
1.1.1.4   root      131: 
1.1.1.6   root      132: static PCIDeviceInfo grackle_pci_host_info = {
                    133:     .qdev.name = "grackle",
                    134:     .qdev.size = sizeof(PCIDevice),
                    135:     .init      = grackle_pci_host_init,
                    136: };
                    137: 
                    138: static void grackle_register_devices(void)
                    139: {
                    140:     sysbus_register_dev("grackle", sizeof(GrackleState),
                    141:                         pci_grackle_init_device);
                    142:     pci_qdev_register(&grackle_pci_host_info);
1.1       root      143: }
1.1.1.6   root      144: 
                    145: device_init(grackle_register_devices)

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