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drivers/enc28j60: fix of #9784

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Gunar Schorcht 2018-08-21 09:12:25 +02:00 committed by Schorcht
parent 06b5a58e62
commit 5cb2dd32e0
1 changed files with 14 additions and 0 deletions
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14
drivers/enc28j60/enc28j60.c
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@ -247,6 +247,9 @@ static void mac_set(enc28j60_t *dev, uint8_t *mac)
static void on_int(void *arg) static void on_int(void *arg)
{ {
/* disable gobal interupt enable bit to avoid loosing interupts */
cmd_bfc((enc28j60_t *)arg, REG_EIE, -1, EIE_INTIE);
netdev_t *netdev = (netdev_t *)arg; netdev_t *netdev = (netdev_t *)arg;
netdev->event_callback(arg, NETDEV_EVENT_ISR); netdev->event_callback(arg, NETDEV_EVENT_ISR);
} }
@ -333,6 +336,9 @@ static int nd_recv(netdev_t *netdev, void *buf, size_t max_len, void *info)
next = (uint16_t)((head[1] << 8) | head[0]); next = (uint16_t)((head[1] << 8) | head[0]);
size = (uint16_t)((head[3] << 8) | head[2]) - 4; /* discard CRC */ size = (uint16_t)((head[3] << 8) | head[2]) - 4; /* discard CRC */
DEBUG("[enc28j60] recv: size=%i next=%i buf=%p len=%d\n",
(int)size, (int)next, buf, max_len);
if (buf != NULL) { if (buf != NULL) {
#ifdef MODULE_NETSTATS_L2 #ifdef MODULE_NETSTATS_L2
netdev->stats.rx_count++; netdev->stats.rx_count++;
@ -349,6 +355,12 @@ static int nd_recv(netdev_t *netdev, void *buf, size_t max_len, void *info)
cmd_w_addr(dev, ADDR_RX_READ, NEXT_TO_ERXRDPT(next)); cmd_w_addr(dev, ADDR_RX_READ, NEXT_TO_ERXRDPT(next));
cmd_bfs(dev, REG_ECON2, -1, ECON2_PKTDEC); cmd_bfs(dev, REG_ECON2, -1, ECON2_PKTDEC);
} }
else if (max_len != 0) {
/* drop the packet */
DEBUG("[enc28j60] recv: drop packet - no buffer to receive\n");
cmd_w_addr(dev, ADDR_RX_READ, NEXT_TO_ERXRDPT(next));
cmd_bfs(dev, REG_ECON2, -1, ECON2_PKTDEC);
}
mutex_unlock(&dev->lock); mutex_unlock(&dev->lock);
return (int)size; return (int)size;
@ -489,6 +501,8 @@ static void nd_isr(netdev_t *netdev)
} }
eir = cmd_rcr(dev, REG_EIR, -1); eir = cmd_rcr(dev, REG_EIR, -1);
} }
/* enable gobal interupt enable bit again */
cmd_bfs(dev, REG_EIE, -1, EIE_INTIE);
} }
static int nd_get(netdev_t *netdev, netopt_t opt, void *value, size_t max_len) static int nd_get(netdev_t *netdev, netopt_t opt, void *value, size_t max_len)