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Diffstat (limited to 'firmware/kernel.c')
-rw-r--r--firmware/kernel.c29
1 files changed, 22 insertions, 7 deletions
diff --git a/firmware/kernel.c b/firmware/kernel.c
index 3e6f89bc7e..02b76e1e5d 100644
--- a/firmware/kernel.c
+++ b/firmware/kernel.c
@@ -29,21 +29,22 @@ void (*tick_funcs[MAX_NUM_TICK_TASKS])(void);
29 29
30static void tick_start(unsigned int interval_in_ms); 30static void tick_start(unsigned int interval_in_ms);
31 31
32/* This array holds all queues that are initiated. It is used for broadcast. */
33static struct event_queue *all_queues[32];
34static int num_queues;
35
32/**************************************************************************** 36/****************************************************************************
33 * Standard kernel stuff 37 * Standard kernel stuff
34 ****************************************************************************/ 38 ****************************************************************************/
35void kernel_init(void) 39void kernel_init(void)
36{ 40{
37 int i;
38
39 /* Init the threading API */ 41 /* Init the threading API */
40 init_threads(); 42 init_threads();
41 43
42 /* Clear the tick task array */ 44 memset(tick_funcs, 0, sizeof(tick_funcs));
43 for(i = 0;i < MAX_NUM_TICK_TASKS;i++) 45
44 { 46 num_queues = 0;
45 tick_funcs[i] = NULL; 47 memset(all_queues, 0, sizeof(all_queues));
46 }
47 48
48 tick_start(1000/HZ); 49 tick_start(1000/HZ);
49} 50}
@@ -82,6 +83,9 @@ void queue_init(struct event_queue *q)
82{ 83{
83 q->read = 0; 84 q->read = 0;
84 q->write = 0; 85 q->write = 0;
86
87 /* Add it to the all_queues array */
88 all_queues[num_queues++] = q;
85} 89}
86 90
87void queue_wait(struct event_queue *q, struct event *ev) 91void queue_wait(struct event_queue *q, struct event *ev)
@@ -112,6 +116,17 @@ bool queue_empty(struct event_queue* q)
112 return ( q->read == q->write ); 116 return ( q->read == q->write );
113} 117}
114 118
119int queue_broadcast(int id, void *data)
120{
121 int i;
122
123 for(i = 0;i < num_queues;i++)
124 {
125 queue_post(all_queues[i], id, data);
126 }
127
128 return num_queues;
129}
115 130
116/**************************************************************************** 131/****************************************************************************
117 * Timer tick 132 * Timer tick