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Update some comments

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This commit is contained in:
Gregory Nutt 2015-08-27 08:19:26 -06:00
parent fa9522da41
commit 926f3aa9af
1 changed files with 14 additions and 13 deletions
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27
arch/arm/src/samv7/sam_emac.c
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@ -527,9 +527,9 @@ struct sam_emac_s
struct work_s work; /* For deferring work to the work queue */ struct work_s work; /* For deferring work to the work queue */
#endif #endif
/* This holds the information visible to uIP/NuttX */ /* This holds the information visible to the NuttX network */
struct net_driver_s dev; /* Interface understood by uIP */ struct net_driver_s dev; /* Interface understood by the network */
/* Constant and configured attributes of the EMAC */ /* Constant and configured attributes of the EMAC */
@ -1470,8 +1470,9 @@ static int sam_transmit(struct sam_emac_s *priv, int qid)
* Function: sam_txpoll * Function: sam_txpoll
* *
* Description: * Description:
* The transmitter is available, check if uIP has any outgoing packets ready * The transmitter is available, check if the network has any outgoing
* to send. This is a callback from devif_poll(). devif_poll() may be called: * packets ready to send. This is a callback from devif_poll().
* devif_poll() may be called:
* *
* 1. When the preceding TX packet send is complete, * 1. When the preceding TX packet send is complete,
* 2. When the preceding TX packet send timesout and the interface is reset * 2. When the preceding TX packet send timesout and the interface is reset
@ -1551,7 +1552,7 @@ static int sam_txpoll(struct net_driver_s *dev)
* Function: sam_dopoll * Function: sam_dopoll
* *
* Description: * Description:
* Perform the uIP poll. * Perform the network poll.
* *
* Parameters: * Parameters:
* priv - Reference to the driver state structure * priv - Reference to the driver state structure
@ -1575,7 +1576,7 @@ static void sam_dopoll(struct sam_emac_s *priv, int qid)
if (sam_txfree(priv, qid) > 0) if (sam_txfree(priv, qid) > 0)
{ {
/* If we have the descriptor, then poll uIP for new XMIT data. */ /* If we have the descriptor, then poll the network for new XMIT data. */
(void)devif_poll(dev, sam_txpoll); (void)devif_poll(dev, sam_txpoll);
} }
@ -1876,8 +1877,8 @@ static void sam_receive(struct sam_emac_s *priv, int qid)
{ {
sam_dumppacket("Received packet", dev->d_buf, dev->d_len); sam_dumppacket("Received packet", dev->d_buf, dev->d_len);
/* Check if the packet is a valid size for the uIP buffer configuration /* Check if the packet is a valid size for the network buffer
* (this should not happen) * configuration (this should not happen)
*/ */
if (dev->d_len > CONFIG_NET_ETH_MTU) if (dev->d_len > CONFIG_NET_ETH_MTU)
@ -2090,7 +2091,7 @@ static void sam_txdone(struct sam_emac_s *priv, int qid)
xfrq->txtail = tail; xfrq->txtail = tail;
/* Then poll uIP for new XMIT data */ /* Then poll the network for new XMIT data */
sam_dopoll(priv, qid); sam_dopoll(priv, qid);
} }
@ -2216,7 +2217,7 @@ static void sam_txerr_interrupt(FAR struct sam_emac_s *priv, int qid)
sam_putreg(priv, SAM_EMAC_IER_OFFSET, EMAC_RX_INTS); sam_putreg(priv, SAM_EMAC_IER_OFFSET, EMAC_RX_INTS);
/* Then poll uIP for new XMIT data */ /* Then poll the network for new XMIT data */
sam_dopoll(priv, qid); sam_dopoll(priv, qid);
} }
@ -2567,7 +2568,7 @@ static inline void sam_txtimeout_process(FAR struct sam_emac_s *priv)
sam_ifdown(&priv->dev); sam_ifdown(&priv->dev);
sam_ifup(&priv->dev); sam_ifup(&priv->dev);
/* Then poll uIP for new XMIT data */ /* Then poll the network for new XMIT data */
sam_dopoll(priv, EMAC_QUEUE_0); sam_dopoll(priv, EMAC_QUEUE_0);
} }
@ -2677,7 +2678,7 @@ static inline void sam_poll_process(FAR struct sam_emac_s *priv)
if (sam_txfree(priv, EMAC_QUEUE_0) > 0) if (sam_txfree(priv, EMAC_QUEUE_0) > 0)
{ {
/* Update TCP timing states and poll uIP for new XMIT data. */ /* Update TCP timing states and poll the network for new XMIT data. */
(void)devif_timer(dev, sam_txpoll, SAM_POLLHSEC); (void)devif_timer(dev, sam_txpoll, SAM_POLLHSEC);
} }
@ -2927,7 +2928,7 @@ static inline void sam_txavail_process(FAR struct sam_emac_s *priv)
if (priv->ifup) if (priv->ifup)
{ {
/* Poll uIP for new XMIT data */ /* Poll the network for new XMIT data */
sam_dopoll(priv, EMAC_QUEUE_0); sam_dopoll(priv, EMAC_QUEUE_0);
} }