static int dma_stm32_disable_stream(struct dma_stm32_device *ddata,
u32_t id)
{
u32_t config;
int count = 0;
int ret = 0;
for (;;) {
config = dma_stm32_read(ddata, DMA_STM32_SCR(id));
/* Stream already disabled */
if (!(config & DMA_STM32_SCR_EN)) {
return 0;
}
/* Try to disable stream */
dma_stm32_write(ddata, DMA_STM32_SCR(id),
config &= ~DMA_STM32_SCR_EN);
/* After trying for 5 seconds, give up */
k_sleep(K_SECONDS(5));
if (count++ > (5 * 1000) / 50) {
SYS_LOG_ERR("DMA error: Stream in use\n");
return -EBUSY;
}
}
return ret;
}
static int secure_beacon_send(void)
{
static const struct bt_mesh_send_cb send_cb = {
.end = beacon_complete,
};
u32_t now = k_uptime_get_32();
int i;
BT_DBG("");
for (i = 0; i < ARRAY_SIZE(bt_mesh.sub); i++) {
struct bt_mesh_subnet *sub = &bt_mesh.sub[i];
struct net_buf *buf;
u32_t time_diff;
if (sub->net_idx == BT_MESH_KEY_UNUSED) {
continue;
}
time_diff = now - sub->beacon_sent;
if (time_diff < K_SECONDS(600) &&
time_diff < BEACON_THRESHOLD(sub)) {
continue;
}
buf = bt_mesh_adv_create(BT_MESH_ADV_BEACON, PROV_XMIT_COUNT,
PROV_XMIT_INT, K_NO_WAIT);
if (!buf) {
BT_ERR("Unable to allocate beacon buffer");
return -ENOBUFS;
}
bt_mesh_beacon_create(sub, &buf->b);
bt_mesh_adv_send(buf, &send_cb, sub);
net_buf_unref(buf);
}
return 0;
}