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Replaced some // comments with /* */

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likewise 2003-03-25 14:19:00 +00:00
parent 9503439bd6
commit 6f084400d0
1 changed files with 20 additions and 16 deletions
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36
ports/c16x/netif/cs8900if.c
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@ -1,4 +1,7 @@
/** @file /** @file
*
* Ethernet network driver for IP
*/
/* /*
* Copyright (c) 2001-2003 Leon Woestenberg <leon.woestenberg@axon.tv> * Copyright (c) 2001-2003 Leon Woestenberg <leon.woestenberg@axon.tv>
* Copyright (c) 2001-2003 Axon Digital Design B.V., The Netherlands. * Copyright (c) 2001-2003 Axon Digital Design B.V., The Netherlands.
@ -447,7 +450,7 @@ static struct pbuf *cs8900_input(struct netif *netif)
static void cs8900_service(struct netif *netif) static void cs8900_service(struct netif *netif)
{ {
// amount of ISQ's to handle (> 0) in one cs8900_service() call /* amount of ISQ's to handle (> 0) in one cs8900_service() call */
unsigned char events2service = 1; unsigned char events2service = 1;
#if (CS8900_STATS > 0) #if (CS8900_STATS > 0)
unsigned int miss_count = 0, coll_count = 0; unsigned int miss_count = 0, coll_count = 0;
@ -471,28 +474,28 @@ static void cs8900_service(struct netif *netif)
#ifdef LED_NEED_SERVICE #ifdef LED_NEED_SERVICE
leds_off(LED_NEED_SERVICE); leds_off(LED_NEED_SERVICE);
#endif #endif
// no unhandled irq_status left? /* no unhandled irq_status left? */
if (irq_status == 0x0000U) if (irq_status == 0x0000U)
{ {
// read ISQ register /* read ISQ register */
irq_status = ISQ; irq_status = ISQ;
} }
// ISQ interrupt event, and allowed to service in this loop? /* ISQ interrupt event, and allowed to service in this loop? */
while ((irq_status != 0x0000U) && (events2service-- > 0)) while ((irq_status != 0x0000U) && (events2service-- > 0))
{ {
// investigate event /* investigate event */
if ((irq_status & 0x003fU) == 0x0004U/*Receiver Event*/) if ((irq_status & 0x003fU) == 0x0004U/*Receiver Event*/)
{ {
// correctly received frame, either broadcast or individual address /* correctly received frame, either broadcast or individual address */
// TODO: think where these checks should appear: here or in cs8900_input() /* TODO: think where these checks should appear: here or in cs8900_input() */
if ((irq_status & 0x0100U/*RxOK*/) && (irq_status & 0x0c00U/*Broadcast | Individual*/)) if ((irq_status & 0x0100U/*RxOK*/) && (irq_status & 0x0c00U/*Broadcast | Individual*/))
{ {
// read the frame from the cs8900a /* read the frame from the cs8900a */
cs8900if_input(netif); cs8900if_input(netif);
} }
else else
{ {
// skip this frame /* skip this frame */
PACKETPP = CS_PP_RXCFG; PACKETPP = CS_PP_RXCFG;
PPDATA |= 0x0040U/*Skip_1*/; PPDATA |= 0x0040U/*Skip_1*/;
#if (CS8900_STATS > 0) #if (CS8900_STATS > 0)
@ -505,33 +508,34 @@ static void cs8900_service(struct netif *netif)
{ {
miss_count += (irq_status >> 6); miss_count += (irq_status >> 6);
} }
else if ((irq_status & 0x003fU) == 0x0012U/*TxCOL Event*/) else if ((irq_status & 0x003fU) == 0x0012U/*TxCOL Event*/)
{ {
coll_count += (irq_status >> 6); coll_count += (irq_status >> 6);
} }
#endif #endif
// read ISQ register /* read ISQ register */
irq_status = ISQ; irq_status = ISQ;
} }
// we did not deplete the ISQ? /* we did not deplete the ISQ? */
if (irq_status != 0x0000U) if (irq_status != 0x0000U)
{ {
// the cs8900a still needs service /* the cs8900a still needs service */
((struct cs8900if *)netif->state)->needs_service = 1; ((struct cs8900if *)netif->state)->needs_service = 1;
#ifdef LED_NEED_SERVICE #ifdef LED_NEED_SERVICE
leds_on(LED_NEED_SERVICE); leds_on(LED_NEED_SERVICE);
#endif #endif
} }
#if (CS8900_STATS > 1) /* follow misses and collisions on a per-packet basis? */ #if (CS8900_STATS > 1) /* follow misses and collisions on a per-packet basis? */
// read RxMiss Counter (zeroes itself upon read) /* read RxMiss Counter (zeroes itself upon read) */
PACKETPP = CS_PP_RXMISS; PACKETPP = CS_PP_RXMISS;
miss_count += (PPDATA >> 6); miss_count += (PPDATA >> 6);
// read RxCol Counter (zeroes itself upon read) /* read RxCol Counter (zeroes itself upon read) */
PACKETPP = CS_PP_TXCOL; PACKETPP = CS_PP_TXCOL;
coll_count += (PPDATA >> 6); coll_count += (PPDATA >> 6);
#endif #endif
#if (CS8900_STATS > 0) #if (CS8900_STATS > 0)
/* copy statistics counters into netif state fields */
((struct cs8900if *)netif->state)->missed += miss_count; ((struct cs8900if *)netif->state)->missed += miss_count;
if (miss_count > 0) DEBUGF(NETIF_DEBUG | 1, ("cs8900_input: %u missed packets due to rx buffer overrun\n", miss_count)); if (miss_count > 0) DEBUGF(NETIF_DEBUG | 1, ("cs8900_input: %u missed packets due to rx buffer overrun\n", miss_count));