#include "sysemu.h" #include "qdev.h" void *qdev_get_prop_ptr(DeviceState *dev, Property *prop) { void *ptr = dev; ptr += prop->offset; return ptr; } /* --- 16bit integer --- */ static int parse_uint16(DeviceState *dev, Property *prop, const char *str) { uint16_t *ptr = qdev_get_prop_ptr(dev, prop); const char *fmt; /* accept both hex and decimal */ fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx16 : "%" PRIu16; if (sscanf(str, fmt, ptr) != 1) return -1; return 0; } static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len) { uint16_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%" PRIu16, *ptr); } PropertyInfo qdev_prop_uint16 = { .name = "uint16", .type = PROP_TYPE_UINT16, .size = sizeof(uint16_t), .parse = parse_uint16, .print = print_uint16, }; /* --- 32bit integer --- */ static int parse_uint32(DeviceState *dev, Property *prop, const char *str) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); const char *fmt; /* accept both hex and decimal */ fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx32 : "%" PRIu32; if (sscanf(str, fmt, ptr) != 1) return -1; return 0; } static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%" PRIu32, *ptr); } PropertyInfo qdev_prop_uint32 = { .name = "uint32", .type = PROP_TYPE_UINT32, .size = sizeof(uint32_t), .parse = parse_uint32, .print = print_uint32, }; static int parse_int32(DeviceState *dev, Property *prop, const char *str) { int32_t *ptr = qdev_get_prop_ptr(dev, prop); if (sscanf(str, "%" PRId32, ptr) != 1) return -1; return 0; } static int print_int32(DeviceState *dev, Property *prop, char *dest, size_t len) { int32_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%" PRId32, *ptr); } PropertyInfo qdev_prop_int32 = { .name = "int32", .type = PROP_TYPE_INT32, .size = sizeof(int32_t), .parse = parse_int32, .print = print_int32, }; /* --- 32bit hex value --- */ static int parse_hex32(DeviceState *dev, Property *prop, const char *str) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); if (sscanf(str, "%" PRIx32, ptr) != 1) return -1; return 0; } static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "0x%" PRIx32, *ptr); } PropertyInfo qdev_prop_hex32 = { .name = "hex32", .type = PROP_TYPE_UINT32, .size = sizeof(uint32_t), .parse = parse_hex32, .print = print_hex32, }; /* --- 64bit integer --- */ static int parse_uint64(DeviceState *dev, Property *prop, const char *str) { uint64_t *ptr = qdev_get_prop_ptr(dev, prop); const char *fmt; /* accept both hex and decimal */ fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx64 : "%" PRIu64; if (sscanf(str, fmt, ptr) != 1) return -1; return 0; } static int print_uint64(DeviceState *dev, Property *prop, char *dest, size_t len) { uint64_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%" PRIu64, *ptr); } PropertyInfo qdev_prop_uint64 = { .name = "uint64", .type = PROP_TYPE_UINT64, .size = sizeof(uint64_t), .parse = parse_uint64, .print = print_uint64, }; /* --- 64bit hex value --- */ static int parse_hex64(DeviceState *dev, Property *prop, const char *str) { uint64_t *ptr = qdev_get_prop_ptr(dev, prop); if (sscanf(str, "%" PRIx64, ptr) != 1) return -1; return 0; } static int print_hex64(DeviceState *dev, Property *prop, char *dest, size_t len) { uint64_t *ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "0x%" PRIx64, *ptr); } PropertyInfo qdev_prop_hex64 = { .name = "hex64", .type = PROP_TYPE_UINT64, .size = sizeof(uint64_t), .parse = parse_hex64, .print = print_hex64, }; /* --- drive --- */ static int parse_drive(DeviceState *dev, Property *prop, const char *str) { DriveInfo **ptr = qdev_get_prop_ptr(dev, prop); *ptr = drive_get_by_id(str); if (*ptr == NULL) return -1; return 0; } static int print_drive(DeviceState *dev, Property *prop, char *dest, size_t len) { DriveInfo **ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%s", (*ptr)->id); } PropertyInfo qdev_prop_drive = { .name = "drive", .type = PROP_TYPE_DRIVE, .size = sizeof(DriveInfo*), .parse = parse_drive, .print = print_drive, }; /* --- character device --- */ static int parse_chr(DeviceState *dev, Property *prop, const char *str) { CharDriverState **ptr = qdev_get_prop_ptr(dev, prop); *ptr = qemu_chr_find(str); if (*ptr == NULL) return -1; return 0; } static int print_chr(DeviceState *dev, Property *prop, char *dest, size_t len) { CharDriverState **ptr = qdev_get_prop_ptr(dev, prop); if (*ptr && (*ptr)->label) { return snprintf(dest, len, "%s", (*ptr)->label); } else { return snprintf(dest, len, "<null>"); } } PropertyInfo qdev_prop_chr = { .name = "chr", .type = PROP_TYPE_CHR, .size = sizeof(CharDriverState*), .parse = parse_chr, .print = print_chr, }; /* --- pointer --- */ static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len) { void **ptr = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "<%p>", *ptr); } PropertyInfo qdev_prop_ptr = { .name = "ptr", .type = PROP_TYPE_PTR, .size = sizeof(void*), .print = print_ptr, }; /* --- mac address --- */ /* * accepted syntax versions: * 01:02:03:04:05:06 * 01-02-03-04-05-06 */ static int parse_mac(DeviceState *dev, Property *prop, const char *str) { uint8_t *mac = qdev_get_prop_ptr(dev, prop); int i, pos; char *p; for (i = 0, pos = 0; i < 6; i++, pos += 3) { if (!qemu_isxdigit(str[pos])) return -1; if (!qemu_isxdigit(str[pos+1])) return -1; if (i == 5 && str[pos+2] != '\0') return -1; if (str[pos+2] != ':' && str[pos+2] != '-') return -1; mac[i] = strtol(str+pos, &p, 16); } return 0; } static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len) { uint8_t *mac = qdev_get_prop_ptr(dev, prop); return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); } PropertyInfo qdev_prop_macaddr = { .name = "mac-addr", .type = PROP_TYPE_MACADDR, .size = 6, .parse = parse_mac, .print = print_mac, }; /* --- pci address --- */ /* * bus-local address, i.e. "$slot" or "$slot.$fn" */ static int parse_pci_devfn(DeviceState *dev, Property *prop, const char *str) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); unsigned int slot, fn, n; if (sscanf(str, "%x.%x%n", &slot, &fn, &n) != 2) { fn = 0; if (sscanf(str, "%x%n", &slot, &n) != 1) { return -1; } } if (str[n] != '\0') return -1; if (fn > 7) return -1; *ptr = slot << 3 | fn; return 0; } static int print_pci_devfn(DeviceState *dev, Property *prop, char *dest, size_t len) { uint32_t *ptr = qdev_get_prop_ptr(dev, prop); if (*ptr == -1) { return snprintf(dest, len, "<unset>"); } else { return snprintf(dest, len, "%02x.%x", *ptr >> 3, *ptr & 7); } } PropertyInfo qdev_prop_pci_devfn = { .name = "pci-devfn", .type = PROP_TYPE_UINT32, .size = sizeof(uint32_t), .parse = parse_pci_devfn, .print = print_pci_devfn, }; /* --- public helpers --- */ static Property *qdev_prop_walk(Property *props, const char *name) { if (!props) return NULL; while (props->name) { if (strcmp(props->name, name) == 0) return props; props++; } return NULL; } static Property *qdev_prop_find(DeviceState *dev, const char *name) { Property *prop; /* device properties */ prop = qdev_prop_walk(dev->info->props, name); if (prop) return prop; /* bus properties */ prop = qdev_prop_walk(dev->parent_bus->info->props, name); if (prop) return prop; return NULL; } int qdev_prop_parse(DeviceState *dev, const char *name, const char *value) { Property *prop; prop = qdev_prop_find(dev, name); if (!prop) { fprintf(stderr, "property \"%s.%s\" not found\n", dev->info->name, name); return -1; } if (!prop->info->parse) { fprintf(stderr, "property \"%s.%s\" has no parser\n", dev->info->name, name); return -1; } return prop->info->parse(dev, prop, value); } void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type) { Property *prop; void *dst; prop = qdev_prop_find(dev, name); if (!prop) { fprintf(stderr, "%s: property \"%s.%s\" not found\n", __FUNCTION__, dev->info->name, name); abort(); } if (prop->info->type != type) { fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n", __FUNCTION__, dev->info->name, name); abort(); } dst = qdev_get_prop_ptr(dev, prop); memcpy(dst, src, prop->info->size); } void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value) { qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16); } void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value) { qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32); } void qdev_prop_set_int32(DeviceState *dev, const char *name, int32_t value) { qdev_prop_set(dev, name, &value, PROP_TYPE_INT32); } void qdev_prop_set_uint64(DeviceState *dev, const char *name, uint64_t value) { qdev_prop_set(dev, name, &value, PROP_TYPE_UINT64); } void qdev_prop_set_drive(DeviceState *dev, const char *name, DriveInfo *value) { qdev_prop_set(dev, name, &value, PROP_TYPE_DRIVE); } void qdev_prop_set_chr(DeviceState *dev, const char *name, CharDriverState *value) { qdev_prop_set(dev, name, &value, PROP_TYPE_CHR); } void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value) { qdev_prop_set(dev, name, &value, PROP_TYPE_PTR); } void qdev_prop_set_defaults(DeviceState *dev, Property *props) { char *dst; if (!props) return; while (props->name) { if (props->defval) { dst = qdev_get_prop_ptr(dev, props); memcpy(dst, props->defval, props->info->size); } props++; } } static CompatProperty *compat_props; void qdev_prop_register_compat(CompatProperty *props) { compat_props = props; } void qdev_prop_set_compat(DeviceState *dev) { CompatProperty *prop; if (!compat_props) { return; } for (prop = compat_props; prop->driver != NULL; prop++) { if (strcmp(dev->info->name, prop->driver) != 0) { continue; } if (qdev_prop_parse(dev, prop->property, prop->value) != 0) { abort(); } } }