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1.1 root 1: #include "qdev.h"
2:
3: void *qdev_get_prop_ptr(DeviceState *dev, Property *prop)
4: {
5: void *ptr = dev;
6: ptr += prop->offset;
7: return ptr;
8: }
9:
10: /* --- 16bit integer --- */
11:
12: static int parse_uint16(DeviceState *dev, Property *prop, const char *str)
13: {
14: uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
15: const char *fmt;
16:
17: /* accept both hex and decimal */
18: fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx16 : "%" PRIu16;
19: if (sscanf(str, fmt, ptr) != 1)
20: return -1;
21: return 0;
22: }
23:
24: static int print_uint16(DeviceState *dev, Property *prop, char *dest, size_t len)
25: {
26: uint16_t *ptr = qdev_get_prop_ptr(dev, prop);
27: return snprintf(dest, len, "%" PRIu16, *ptr);
28: }
29:
30: PropertyInfo qdev_prop_uint16 = {
31: .name = "uint16",
32: .type = PROP_TYPE_UINT16,
33: .size = sizeof(uint16_t),
34: .parse = parse_uint16,
35: .print = print_uint16,
36: };
37:
38: /* --- 32bit integer --- */
39:
40: static int parse_uint32(DeviceState *dev, Property *prop, const char *str)
41: {
42: uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
43: const char *fmt;
44:
45: /* accept both hex and decimal */
46: fmt = strncasecmp(str, "0x",2) == 0 ? "%" PRIx32 : "%" PRIu32;
47: if (sscanf(str, fmt, ptr) != 1)
48: return -1;
49: return 0;
50: }
51:
52: static int print_uint32(DeviceState *dev, Property *prop, char *dest, size_t len)
53: {
54: uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
55: return snprintf(dest, len, "%" PRIu32, *ptr);
56: }
57:
58: PropertyInfo qdev_prop_uint32 = {
59: .name = "uint32",
60: .type = PROP_TYPE_UINT32,
61: .size = sizeof(uint32_t),
62: .parse = parse_uint32,
63: .print = print_uint32,
64: };
65:
66: /* --- 32bit hex value --- */
67:
68: static int parse_hex32(DeviceState *dev, Property *prop, const char *str)
69: {
70: uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
71:
72: if (sscanf(str, "%" PRIx32, ptr) != 1)
73: return -1;
74: return 0;
75: }
76:
77: static int print_hex32(DeviceState *dev, Property *prop, char *dest, size_t len)
78: {
79: uint32_t *ptr = qdev_get_prop_ptr(dev, prop);
80: return snprintf(dest, len, "0x%" PRIx32, *ptr);
81: }
82:
83: PropertyInfo qdev_prop_hex32 = {
84: .name = "hex32",
85: .type = PROP_TYPE_UINT32,
86: .size = sizeof(uint32_t),
87: .parse = parse_hex32,
88: .print = print_hex32,
89: };
90:
91: /* --- pointer --- */
92:
93: static int print_ptr(DeviceState *dev, Property *prop, char *dest, size_t len)
94: {
95: void **ptr = qdev_get_prop_ptr(dev, prop);
96: return snprintf(dest, len, "<%p>", *ptr);
97: }
98:
99: PropertyInfo qdev_prop_ptr = {
100: .name = "ptr",
101: .type = PROP_TYPE_PTR,
102: .size = sizeof(void*),
103: .print = print_ptr,
104: };
105:
106: /* --- mac address --- */
107:
108: /*
109: * accepted syntax versions:
110: * 01:02:03:04:05:06
111: * 01-02-03-04-05-06
112: */
113: static int parse_mac(DeviceState *dev, Property *prop, const char *str)
114: {
115: uint8_t *mac = qdev_get_prop_ptr(dev, prop);
116: int i, pos;
117: char *p;
118:
119: for (i = 0, pos = 0; i < 6; i++, pos += 3) {
120: if (!qemu_isxdigit(str[pos]))
121: return -1;
122: if (!qemu_isxdigit(str[pos+1]))
123: return -1;
124: if (i == 5 && str[pos+2] != '\0')
125: return -1;
126: if (str[pos+2] != ':' && str[pos+2] != '-')
127: return -1;
128: mac[i] = strtol(str+pos, &p, 16);
129: }
130: return 0;
131: }
132:
133: static int print_mac(DeviceState *dev, Property *prop, char *dest, size_t len)
134: {
135: uint8_t *mac = qdev_get_prop_ptr(dev, prop);
136: return snprintf(dest, len, "%02x:%02x:%02x:%02x:%02x:%02x",
137: mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
138: }
139:
140: PropertyInfo qdev_prop_macaddr = {
141: .name = "mac-addr",
142: .type = PROP_TYPE_MACADDR,
143: .size = 6,
144: .parse = parse_mac,
145: .print = print_mac,
146: };
147:
148: /* --- public helpers --- */
149:
150: static Property *qdev_prop_walk(Property *props, const char *name)
151: {
152: if (!props)
153: return NULL;
154: while (props->name) {
155: if (strcmp(props->name, name) == 0)
156: return props;
157: props++;
158: }
159: return NULL;
160: }
161:
162: static Property *qdev_prop_find(DeviceState *dev, const char *name)
163: {
164: Property *prop;
165:
166: /* device properties */
167: prop = qdev_prop_walk(dev->info->props, name);
168: if (prop)
169: return prop;
170:
171: /* bus properties */
172: prop = qdev_prop_walk(dev->parent_bus->info->props, name);
173: if (prop)
174: return prop;
175:
176: return NULL;
177: }
178:
179: int qdev_prop_parse(DeviceState *dev, const char *name, const char *value)
180: {
181: Property *prop;
182:
183: prop = qdev_prop_find(dev, name);
184: if (!prop) {
185: fprintf(stderr, "property \"%s.%s\" not found\n",
186: dev->info->name, name);
187: return -1;
188: }
189: if (!prop->info->parse) {
190: fprintf(stderr, "property \"%s.%s\" has no parser\n",
191: dev->info->name, name);
192: return -1;
193: }
194: return prop->info->parse(dev, prop, value);
195: }
196:
197: void qdev_prop_set(DeviceState *dev, const char *name, void *src, enum PropertyType type)
198: {
199: Property *prop;
200: void *dst;
201:
202: prop = qdev_prop_find(dev, name);
203: if (!prop) {
204: fprintf(stderr, "%s: property \"%s.%s\" not found\n",
205: __FUNCTION__, dev->info->name, name);
206: abort();
207: }
208: if (prop->info->type != type) {
209: fprintf(stderr, "%s: property \"%s.%s\" type mismatch\n",
210: __FUNCTION__, dev->info->name, name);
211: abort();
212: }
213: dst = qdev_get_prop_ptr(dev, prop);
214: memcpy(dst, src, prop->info->size);
215: }
216:
217: void qdev_prop_set_uint16(DeviceState *dev, const char *name, uint16_t value)
218: {
219: qdev_prop_set(dev, name, &value, PROP_TYPE_UINT16);
220: }
221:
222: void qdev_prop_set_uint32(DeviceState *dev, const char *name, uint32_t value)
223: {
224: qdev_prop_set(dev, name, &value, PROP_TYPE_UINT32);
225: }
226:
227: void qdev_prop_set_ptr(DeviceState *dev, const char *name, void *value)
228: {
229: qdev_prop_set(dev, name, &value, PROP_TYPE_PTR);
230: }
231:
232: void qdev_prop_set_defaults(DeviceState *dev, Property *props)
233: {
234: char *dst;
235:
236: if (!props)
237: return;
238: while (props->name) {
239: if (props->defval) {
240: dst = qdev_get_prop_ptr(dev, props);
241: memcpy(dst, props->defval, props->info->size);
242: }
243: props++;
244: }
245: }
246:
247: static CompatProperty *compat_props;
248:
249: void qdev_prop_register_compat(CompatProperty *props)
250: {
251: compat_props = props;
252: }
253:
254: void qdev_prop_set_compat(DeviceState *dev)
255: {
256: CompatProperty *prop;
257:
258: if (!compat_props) {
259: return;
260: }
261: for (prop = compat_props; prop->driver != NULL; prop++) {
262: if (strcmp(dev->info->name, prop->driver) != 0) {
263: continue;
264: }
265: if (qdev_prop_parse(dev, prop->property, prop->value) != 0) {
266: abort();
267: }
268: }
269: }
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