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1 | #include <stdio.h> |
2 | #include <stdlib.h> |
3 | #include <string.h> |
4 | |
5 | #include "input.h" |
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6 | #include "../linux/in_evdev.h" |
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7 | |
8 | typedef struct |
9 | { |
10 | int drv_id; |
11 | void *drv_data; |
12 | int *binds; |
13 | char *name; |
14 | int probed:1; |
15 | int ignore:1; |
16 | } in_dev_t; |
17 | |
18 | #define IN_MAX_DEVS 10 |
19 | |
20 | static in_dev_t in_devices[IN_MAX_DEVS]; |
21 | static int in_dev_count = 0; |
22 | |
23 | static int in_bind_count(int drv_id) |
24 | { |
25 | int count = 0; |
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26 | if (drv_id == IN_DRVID_EVDEV) |
27 | count = in_evdev_bind_count(); |
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28 | if (count <= 0) |
29 | printf("input: failed to get bind count for drv %d\n", drv_id); |
30 | |
31 | return count; |
32 | } |
33 | |
34 | static int *in_alloc_binds(int drv_id) |
35 | { |
36 | int count, *ret; |
37 | |
38 | count = in_bind_count(drv_id); |
39 | if (count <= 0) { |
40 | printf("input: failed to get bind count for drv %d\n", drv_id); |
41 | return NULL; |
42 | } |
43 | |
44 | ret = malloc(count * sizeof(*ret)); |
45 | return ret; |
46 | } |
47 | |
48 | static void in_free(in_dev_t *dev) |
49 | { |
50 | if (dev->probed) { |
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51 | if (dev->drv_id == IN_DRVID_EVDEV) |
52 | in_evdev_free(dev->drv_data); |
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53 | } |
54 | dev->probed = 0; |
55 | dev->drv_data = NULL; |
56 | free(dev->name); |
57 | dev->name = NULL; |
58 | free(dev->binds); |
59 | dev->binds = NULL; |
60 | } |
61 | |
62 | /* to be called by drivers */ |
63 | void in_register(const char *nname, int drv_id, void *drv_data) |
64 | { |
65 | int i, dupe_count = 0, *binds; |
66 | char name[256], *name_end, *tmp; |
67 | |
68 | strncpy(name, nname, sizeof(name)); |
69 | name[sizeof(name)-12] = 0; |
70 | name_end = name + strlen(name); |
71 | |
72 | for (i = 0; i < in_dev_count; i++) |
73 | { |
74 | if (in_devices[i].name == NULL) |
75 | continue; |
76 | if (strcmp(in_devices[i].name, name) == 0) |
77 | { |
78 | if (in_devices[i].probed) { |
79 | dupe_count++; |
80 | sprintf(name_end, " [%d]", dupe_count); |
81 | continue; |
82 | } |
83 | goto update; |
84 | } |
85 | } |
86 | |
87 | if (i >= IN_MAX_DEVS) |
88 | { |
89 | /* try to find unused device */ |
90 | for (i = 0; i < IN_MAX_DEVS; i++) |
91 | if (!in_devices[i].probed) break; |
92 | if (i >= IN_MAX_DEVS) { |
93 | printf("input: too many devices, can't add %s\n", name); |
94 | return; |
95 | } |
96 | in_free(&in_devices[i]); |
97 | } |
98 | |
99 | tmp = strdup(name); |
100 | if (tmp == NULL) |
101 | return; |
102 | |
103 | binds = in_alloc_binds(drv_id); |
104 | if (binds == NULL) { |
105 | free(tmp); |
106 | return; |
107 | } |
108 | |
109 | in_devices[i].name = tmp; |
110 | in_devices[i].binds = binds; |
111 | if (i + 1 > in_dev_count) |
112 | in_dev_count = i + 1; |
113 | |
114 | printf("input: new device #%d \"%s\"\n", i, name); |
115 | update: |
116 | in_devices[i].probed = 1; |
117 | in_devices[i].drv_id = drv_id; |
118 | in_devices[i].drv_data = drv_data; |
119 | } |
120 | |
121 | void in_probe(void) |
122 | { |
123 | int i; |
124 | for (i = 0; i < in_dev_count; i++) |
125 | in_devices[i].probed = 0; |
126 | |
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127 | in_evdev_probe(); |
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128 | |
129 | /* get rid of devs without binds and probes */ |
130 | for (i = 0; i < in_dev_count; i++) { |
131 | if (!in_devices[i].probed && in_devices[i].binds == NULL) { |
132 | in_dev_count--; |
133 | if (i < in_dev_count) { |
134 | free(in_devices[i].name); |
135 | memmove(&in_devices[i], &in_devices[i+1], |
136 | (in_dev_count - i) * sizeof(in_devices[0])); |
137 | } |
138 | } |
139 | } |
140 | } |
141 | |
142 | void in_clear_binds(const char *devname) |
143 | { |
144 | /* int count; |
145 | |
146 | count = in_bind_count(drv_id); |
147 | if (count <= 0) { |
148 | printf("input: failed to get bind count for drv %d\n", dev->drv_id); |
149 | return NULL; |
150 | } |
151 | */ |
152 | } |
153 | |
154 | int in_update(void) |
155 | { |
156 | int i, result = 0; |
157 | |
158 | for (i = 0; i < in_dev_count; i++) { |
159 | if (in_devices[i].probed && in_devices[i].binds != NULL) { |
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160 | if (in_devices[i].drv_id == IN_DRVID_EVDEV) |
161 | result |= in_evdev_update(in_devices[i].drv_data, in_devices[i].binds); |
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162 | } |
163 | } |
164 | |
165 | return result; |
166 | } |
167 | |
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168 | /* |
169 | * update with wait for a press, return bitfield of BTN_* |
170 | * only can use 1 drv here.. |
171 | */ |
172 | int in_update_menu(void) |
173 | { |
174 | int result = 0; |
175 | #ifdef IN_EVDEV |
176 | void *data[IN_MAX_DEVS]; |
177 | int i, count = 0; |
178 | |
179 | for (i = 0; i < in_dev_count; i++) { |
180 | if (in_devices[i].probed) |
181 | data[count++] = in_devices[i].drv_data; |
182 | } |
183 | |
184 | if (count == 0) { |
185 | /* don't deadlock, fail */ |
186 | printf("input: failed to find devices to read\n"); |
187 | exit(1); |
188 | } |
189 | |
190 | result = in_evdev_update_menu(data, count); |
191 | #else |
192 | #error no menu read handlers |
193 | #endif |
194 | |
195 | return result; |
196 | } |
197 | |
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198 | void in_init(void) |
199 | { |
200 | memset(in_devices, 0, sizeof(in_devices)); |
201 | in_dev_count = 0; |
202 | } |
203 | |
204 | int main(void) |
205 | { |
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206 | int ret; |
207 | |
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208 | in_init(); |
209 | in_probe(); |
210 | |
211 | while (1) { |
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212 | ret = in_update_menu(); |
213 | printf("%08x\n", ret); |
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214 | sleep(1); |
215 | } |
216 | |
217 | return 0; |
218 | } |
219 | |