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Fix that slipif used netif->num to pass parameters to slipif_init.

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Use netif->state now, interpreted as u8_t port number (not a pointer any more!)
This commit is contained in:
Dirk Ziegelmeier 2017-02-05 12:35:42 +01:00
parent 1fd56658b8
commit ef758082ed
2 changed files with 10 additions and 11 deletions
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4
UPGRADING
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@ -9,6 +9,10 @@ with newer versions.
* [Enter new changes just after this line - do not remove this line]
++ Application changes:
* slipif: The way to pass serial port number has changed. netif->num is not
supported any more, netif->state is interpreted as an u8_t port number now
(it's not a POINTER to an u8_t any more!)
* The IPv6 implementation now supports address scopes. All addresses that have a scope according
to the default policy (link-local unicast addresses, interface-local and link-local multicast

17
src/netif/slipif.c
View File

@ -124,7 +124,7 @@ slipif_output(struct netif *netif, struct pbuf *p)
LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
LWIP_ASSERT("p != NULL", (p != NULL));
LWIP_DEBUGF(SLIP_DEBUG, ("slipif_output(%"U16_F"): sending %"U16_F" bytes\n", (u16_t)netif->num, p->tot_len));
LWIP_DEBUGF(SLIP_DEBUG, ("slipif_output: sending %"U16_F" bytes\n", p->tot_len));
priv = (struct slipif_priv *)netif->state;
/* Send pbuf out on the serial I/O device. */
@ -352,9 +352,7 @@ slipif_loop_thread(void *nf)
* ERR_MEM if no memory could be allocated,
* ERR_IF is serial line couldn't be opened
*
* @note netif->num must contain the number of the serial port to open
* (0 by default). If netif->state is != NULL, it is interpreted as an
* u8_t pointer pointing to the serial port number instead of netif->num.
* @note If netif->state is interpreted as an u8_t serial port number.
*
*/
err_t
@ -363,7 +361,10 @@ slipif_init(struct netif *netif)
struct slipif_priv *priv;
u8_t sio_num;
LWIP_DEBUGF(SLIP_DEBUG, ("slipif_init: netif->num=%"U16_F"\n", (u16_t)netif->num));
/* netif->state contains serial port number */
sio_num = (u8_t)netif->state;
LWIP_DEBUGF(SLIP_DEBUG, ("slipif_init: netif->num=%"U16_F"\n", (u16_t)sio_num));
/* Allocate private data */
priv = (struct slipif_priv *)mem_malloc(sizeof(struct slipif_priv));
@ -381,12 +382,6 @@ slipif_init(struct netif *netif)
#endif /* LWIP_IPV6 */
netif->mtu = SLIP_MAX_SIZE;
/* netif->state or netif->num contain the port number */
if (netif->state != NULL) {
sio_num = *(u8_t*)netif->state;
} else {
sio_num = netif->num;
}
/* Try to open the serial port. */
priv->sd = sio_open(sio_num);
if (!priv->sd) {