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liblwip/netif/liteethif: fix buffer pointer arithmetic

This commit is contained in:
Sebastien Bourdeauducq 2015-04-23 17:18:03 +08:00
parent bf935baabb
commit 7290013671
1 changed files with 12 additions and 16 deletions
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28
soc/runtime/liblwip/netif/liteethif.c
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@ -15,20 +15,16 @@
#include <hw/flags.h> #include <hw/flags.h>
#include <hw/ethmac_mem.h> #include <hw/ethmac_mem.h>
typedef union {
unsigned char raw[1514];
} ethernet_buffer;
static unsigned int rxslot; static unsigned int rxslot;
static unsigned int rxlen; static unsigned int rxlen;
static ethernet_buffer *rxbuffer; static char *rxbuffer;
static ethernet_buffer *rxbuffer0; static char *rxbuffer0;
static ethernet_buffer *rxbuffer1; static char *rxbuffer1;
static unsigned int txslot; static unsigned int txslot;
static unsigned int txlen; static unsigned int txlen;
static ethernet_buffer *txbuffer; static char *txbuffer;
static ethernet_buffer *txbuffer0; static char *txbuffer0;
static ethernet_buffer *txbuffer1; static char *txbuffer1;
#define IFNAME0 'e' #define IFNAME0 'e'
#define IFNAME1 't' #define IFNAME1 't'
@ -46,10 +42,10 @@ static void liteeth_low_level_init(struct netif *netif)
ethmac_sram_reader_ev_pending_write(ETHMAC_EV_SRAM_READER); ethmac_sram_reader_ev_pending_write(ETHMAC_EV_SRAM_READER);
ethmac_sram_writer_ev_pending_write(ETHMAC_EV_SRAM_WRITER); ethmac_sram_writer_ev_pending_write(ETHMAC_EV_SRAM_WRITER);
rxbuffer0 = (ethernet_buffer *)ETHMAC_RX0_BASE; rxbuffer0 = (char *)ETHMAC_RX0_BASE;
rxbuffer1 = (ethernet_buffer *)ETHMAC_RX1_BASE; rxbuffer1 = (char *)ETHMAC_RX1_BASE;
txbuffer0 = (ethernet_buffer *)ETHMAC_TX0_BASE; txbuffer0 = (char *)ETHMAC_TX0_BASE;
txbuffer1 = (ethernet_buffer *)ETHMAC_TX1_BASE; txbuffer1 = (char *)ETHMAC_TX1_BASE;
rxslot = 0; rxslot = 0;
txslot = 0; txslot = 0;
@ -64,7 +60,7 @@ static err_t liteeth_low_level_output(struct netif *netif, struct pbuf *p)
txlen = 0; txlen = 0;
for(q = p; q != NULL; q = q->next) { for(q = p; q != NULL; q = q->next) {
memcpy(txbuffer->raw, q->payload, q->len); memcpy(txbuffer, q->payload, q->len);
txbuffer += q->len; txbuffer += q->len;
txlen += q->len; txlen += q->len;
} }
@ -97,7 +93,7 @@ static struct pbuf *liteeth_low_level_input(struct netif *netif)
p = pbuf_alloc(PBUF_RAW, rxlen, PBUF_POOL); p = pbuf_alloc(PBUF_RAW, rxlen, PBUF_POOL);
if(p != NULL) { if(p != NULL) {
for(q = p; q != NULL; q = q->next) { for(q = p; q != NULL; q = q->next) {
memcpy(q->payload, rxbuffer->raw, q->len); memcpy(q->payload, rxbuffer, q->len);
rxbuffer += q->len; rxbuffer += q->len;
} }
} }