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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-11-05 23:04:16 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-11-05 23:04:16 +0000 |
commit | 13a1d731ec51a27983bc9e6fcaa841607a090764 (patch) | |
tree | 93b32ce5f98ff118a21eb072cf111e164fd38686 /nuttx/drivers | |
parent | 4cfb76d4d59acfdadc0f50527533b9c129edde41 (diff) | |
download | px4-nuttx-13a1d731ec51a27983bc9e6fcaa841607a090764.tar.gz px4-nuttx-13a1d731ec51a27983bc9e6fcaa841607a090764.tar.bz2 px4-nuttx-13a1d731ec51a27983bc9e6fcaa841607a090764.zip |
Basic TCP send functional
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@371 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/drivers')
-rw-r--r-- | nuttx/drivers/net/dm90x0.c | 84 |
1 files changed, 25 insertions, 59 deletions
diff --git a/nuttx/drivers/net/dm90x0.c b/nuttx/drivers/net/dm90x0.c index 516d85663..63bde9c98 100644 --- a/nuttx/drivers/net/dm90x0.c +++ b/nuttx/drivers/net/dm90x0.c @@ -44,14 +44,7 @@ #include <nuttx/config.h> #if defined(CONFIG_NET) && defined(CONFIG_NET_DM90x0) -/* Force debug on for this file */ - -#undef CONFIG_DEBUG -#define CONFIG_DEBUG 1 -#undef CONFIG_DEBUG_VERBOSE -#define CONFIG_DEBUG_VERBOSE 1 - -/* Only one hardware interface supported at present (althought there are +/* Only one hardware interface supported at present (although there are * hooks throughout the design to that extending the support to multiple * interfaces should not be that difficult) */ @@ -382,7 +375,7 @@ static boolean dm9x_rxchecksumready(uint8); /* Common TX logic */ static int dm9x_transmit(struct dm9x_driver_s *dm9x); -static int dm9x_uiptxpoll(struct dm9x_driver_s *dm9x); +static int dm9x_uiptxpoll(struct uip_driver_s *dev); /* Interrupt handling */ @@ -816,7 +809,7 @@ static int dm9x_transmit(struct dm9x_driver_s *dm9x) * * Description: * The transmitter is available, check if uIP has any outgoing packets ready - * to send. This may be called: + * to send. This is a callback from uip_poll(). uip_poll() may be called: * * 1. When the preceding TX packet send is complete, * 2. When the preceding TX packet send timesout and the DM90x0 is reset @@ -832,67 +825,40 @@ static int dm9x_transmit(struct dm9x_driver_s *dm9x) * ****************************************************************************/ -static int dm9x_uiptxpoll(struct dm9x_driver_s *dm9x) +static int dm9x_uiptxpoll(struct uip_driver_s *dev) { - int i; - - for(i = 0; i < UIP_CONNS; i++) - { - uip_tcppoll(&dm9x->dev, i); - - /* If the above function invocation resulted in data that - * should be sent out on the network, the global variable - * d_len is set to a value > 0. - */ - - if (dm9x->dev.d_len > 0) - { - uip_arp_out(&dm9x->dev); - dm9x_transmit(dm9x); - - /* Check if there is room in the DM90x0 to hold another packet. In 100M mode, - * that can be 2 packets, otherwise it is a single packet. - */ + struct dm9x_driver_s *dm9x = (struct dm9x_driver_s *)dev->d_private; - if (dm9x->ntxpending > 1 || !dm9x->b100M) - { - return OK; - } - } - } + /* If the polling resulted in data that should be sent out on the network, + * the field d_len is set to a value > 0. + */ -#ifdef CONFIG_NET_UDP - for(i = 0; i < UIP_UDP_CONNS; i++) + if (dm9x->dev.d_len > 0) { - uip_udppoll(&dm9x->dev,i); + uip_arp_out(&dm9x->dev); + dm9x_transmit(dm9x); - /* If the above function invocation resulted in data that - * should be sent out on the network, the global variable - * d_len is set to a value > 0. + /* Check if there is room in the DM90x0 to hold another packet. In 100M mode, + * that can be 2 packets, otherwise it is a single packet. */ - if (dm9x->dev.d_len > 0) + if (dm9x->ntxpending > 1 || !dm9x->b100M) { - uip_arp_out(&dm9x->dev); - dm9x_transmit(dm9x); - - /* Check if there is room in the DM90x0 to hold another packet. In 100M mode, - * that can be 2 packets, otherwise it is a single packet. - */ + /* Returning a non-zero value will terminate the poll operation */ - if (dm9x->ntxpending > 1 || !dm9x->b100M) - { - return OK; - } + return 1; } } -#endif /* CONFIG_NET_UDP */ - return OK; + /* If zero is returned, the polling will continue until all connections have + * been examined. + */ + + return 0; } /**************************************************************************** - * Function: dm9x_uiptxpoll + * Function: dm9x_receive * * Description: * An interrupt was received indicating the availability of a new RX packet @@ -1106,7 +1072,7 @@ static void dm9x_txdone(struct dm9x_driver_s *dm9x) /* Then poll uIP for new XMIT data */ - (void)dm9x_uiptxpoll(dm9x); + (void)uip_poll(&dm9x->dev, dm9x_uiptxpoll, UIP_POLL); } /**************************************************************************** @@ -1263,7 +1229,7 @@ static void dm9x_txtimeout(int argc, uint32 arg, ...) /* Then poll uIP for new XMIT data */ - (void)dm9x_uiptxpoll(dm9x); + (void)uip_poll(&dm9x->dev, dm9x_uiptxpoll, UIP_POLL); } /**************************************************************************** @@ -1307,7 +1273,7 @@ static void dm9x_polltimer(int argc, uint32 arg, ...) { /* If so, poll uIP for new XMIT data */ - (void)dm9x_uiptxpoll(dm9x); + (void)uip_poll(&dm9x->dev, dm9x_uiptxpoll, UIP_TIMER); } /* Setup the watchdog poll timer again */ |