diff options
Diffstat (limited to 'bsps/m68k/csb360/net/network.c')
| -rw-r--r-- | bsps/m68k/csb360/net/network.c | 984 |
1 files changed, 0 insertions, 984 deletions
diff --git a/bsps/m68k/csb360/net/network.c b/bsps/m68k/csb360/net/network.c deleted file mode 100644 index 95769bf26a..0000000000 --- a/bsps/m68k/csb360/net/network.c +++ /dev/null @@ -1,984 +0,0 @@ -/* - * RTEMS/TCPIP driver for MCF5272 Ethernet - * - * Modified for MPC860 by Jay Monkman (jmonkman@lopingdog.com) - * - * This supports Ethernet on either SCC1 or the FEC of the MPC860T. - * Right now, we only do 10 Mbps, even with the FEC. The function - * rtems_enet_driver_attach determines which one to use. Currently, - * only one may be used at a time. - * - * Based on the MC68360 network driver by - * W. Eric Norum - * Saskatchewan Accelerator Laboratory - * University of Saskatchewan - * Saskatoon, Saskatchewan, CANADA - * eric@skatter.usask.ca - * - * This supports ethernet on SCC1. Right now, we only do 10 Mbps. - * - * Modifications by Darlene Stewart <Darlene.Stewart@iit.nrc.ca> - * and Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca> - * Copyright (c) 1999, National Research Council of Canada - */ - -#include <machine/rtems-bsd-kernel-space.h> - -#include <bsp.h> -#include <stdio.h> -#include <rtems/error.h> -#include <rtems/rtems_bsdnet.h> - -#include <sys/param.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/sockio.h> - -#include <net/if.h> - -#include <netinet/in.h> -#include <netinet/if_ether.h> - -#include <sys/types.h> -#include <sys/socket.h> - -/* - * Number of interfaces supported by this driver - */ -#define NIFACES 1 - -/* - * Default number of buffer descriptors set aside for this driver. - * The number of transmit buffer descriptors has to be quite large - * since a single frame often uses four or more buffer descriptors. - */ -#define RX_BUF_COUNT 32 -#define TX_BUF_COUNT 16 -#define TX_BD_PER_BUF 4 - -#define INET_ADDR_MAX_BUF_SIZE (sizeof "255.255.255.255") - - -/* - * RTEMS event used by interrupt handler to signal daemons. - * This must *not* be the same event used by the TCP/IP task synchronization. - */ -#define INTERRUPT_EVENT RTEMS_EVENT_1 - -/* - * RTEMS event used to start transmit daemon. - * This must not be the same as INTERRUPT_EVENT. - */ -#define START_TRANSMIT_EVENT RTEMS_EVENT_2 - -/* - * Receive buffer size -- Allow for a full ethernet packet plus CRC (1518). - * Round off to nearest multiple of RBUF_ALIGN. - */ -#define MAX_MTU_SIZE 1518 -#define RBUF_ALIGN 4 -#define RBUF_SIZE ((MAX_MTU_SIZE + RBUF_ALIGN) & ~RBUF_ALIGN) - -#if (MCLBYTES < RBUF_SIZE) -# error "Driver must have MCLBYTES > RBUF_SIZE" -#endif - -typedef struct { - uint16_t status; - uint16_t length; - void *buffer; -} bd_t; -#define MCF5272_BD_READY (bit(15)) -#define MCF5272_BD_TO1 (bit(14)) -#define MCF5272_BD_WRAP (bit(13)) -#define MCF5272_BD_TO2 (bit(12)) -#define MCF5272_BD_LAST (bit(11)) -#define MCF5272_BD_TX_CRC (bit(10)) -#define MCF5272_BD_DEFER (bit(9)) -#define MCF5272_BD_HEARTBEAT (bit(8)) -#define MCF5272_BD_LATE_COLLISION (bit(7)) -#define MCF5272_BD_RETRY_LIMIT (bit(6)) -#define MCF5272_BD_UNDERRUN (bit(1)) -#define MCF5272_BD_CARRIER_LOST (bit(0)) - -#define MCF5272_BD_EMPTY (bit(15)) -#define MCF5272_BD_RO1 (bit(14)) -#define MCF5272_BD_WRAP (bit(13)) -#define MCF5272_BD_RO2 (bit(12)) -#define MCF5272_BD_M (bit(8)) -#define MCF5272_BD_BC (bit(7)) -#define MCF5272_BD_MC (bit(6)) -#define MCF5272_BD_LONG (bit(5)) -#define MCF5272_BD_NONALIGNED (bit(4)) -#define MCF5272_BD_SHORT (bit(3)) -#define MCF5272_BD_CRC_ERROR (bit(2)) -#define MCF5272_BD_OVERRUN (bit(1)) -#define MCF5272_BD_TRUNCATED (bit(0)) - - -/* - * Per-device data - */ -struct mcf5272_enet_struct { - struct arpcom arpcom; - struct mbuf **rxMbuf; - struct mbuf **txMbuf; - int acceptBroadcast; - int rxBdCount; - int txBdCount; - int txBdHead; - int txBdTail; - int txBdActiveCount; - bd_t *rxBdBase; - bd_t *txBdBase; - rtems_id rxDaemonTid; - rtems_id txDaemonTid; - - /* - * Statistics - */ - unsigned long rxInterrupts; - unsigned long rxNotFirst; - unsigned long rxNotLast; - unsigned long rxGiant; - unsigned long rxNonOctet; - unsigned long rxRunt; - unsigned long rxBadCRC; - unsigned long rxOverrun; - unsigned long rxTruncated; - - unsigned long txInterrupts; - unsigned long txDeferred; - unsigned long txHeartbeat; - unsigned long txLateCollision; - unsigned long txRetryLimit; - unsigned long txUnderrun; - unsigned long txLostCarrier; - unsigned long txRawWait; -}; -static struct mcf5272_enet_struct enet_driver[NIFACES]; - - -void dump_enet_regs(void) -{ - printf("**************************************************************\n"); - printf("ecr: 0x%08x eir: 0x%08x eimr: 0x%08x ivsr: 0x%08x\n\r", - g_enet_regs->ecr, g_enet_regs->eir, - g_enet_regs->eimr, g_enet_regs->ivsr); - printf("rdar: 0x%08x tdar: 0x%08x mmfr: 0x%08x mscr: 0x%08x\n\r", - g_enet_regs->rdar, g_enet_regs->tdar, - g_enet_regs->mmfr, g_enet_regs->mscr); - printf("frbr: 0x%08x frsr: 0x%08x tfwr: 0x%08x tfsr: 0x%08x\n\r", - g_enet_regs->frbr, g_enet_regs->frsr, - g_enet_regs->tfwr, g_enet_regs->tfsr); - printf("rcr: 0x%08x mflr: 0x%08x tcr: 0x%08x malr: 0x%08x\n\r", - g_enet_regs->rcr, g_enet_regs->mflr, - g_enet_regs->tcr, g_enet_regs->malr); - printf("maur: 0x%08x htur: 0x%08x htlr: 0x%08x erdsr: 0x%08x\n\r", - g_enet_regs->maur, g_enet_regs->htur, - g_enet_regs->htlr, g_enet_regs->erdsr); - printf("etdsr: 0x%08x emrbr: 0x%08x\n\r", - g_enet_regs->etdsr, g_enet_regs->emrbr); -} - - - - -/*#define cp printk("%s:%d\n\r", __FUNCTION__, __LINE__) */ -#define cp -#define mcf5272_bd_allocate(_n_) malloc((_n_) * sizeof(bd_t), 0, M_NOWAIT) - - - -rtems_isr enet_rx_isr(rtems_vector_number vector) -{ - cp; - /* - * Frame received? - */ - if (g_enet_regs->eir & MCF5272_ENET_EIR_RXF) { - cp; - g_enet_regs->eir = MCF5272_ENET_EIR_RXF; - enet_driver[0].rxInterrupts++; - rtems_bsdnet_event_send (enet_driver[0].rxDaemonTid, INTERRUPT_EVENT); - } - cp; -} - -rtems_isr enet_tx_isr(rtems_vector_number vector) -{ - cp; - /* - * Buffer transmitted or transmitter error? - */ - if (g_enet_regs->eir & MCF5272_ENET_EIR_TXF) { - cp; - g_enet_regs->eir = MCF5272_ENET_EIR_TXF; - enet_driver[0].txInterrupts++; - rtems_bsdnet_event_send (enet_driver[0].txDaemonTid, INTERRUPT_EVENT); - } - cp; -} - - -/* - * Initialize the ethernet hardware - */ - - -static void -mcf5272_enet_initialize_hardware (struct mcf5272_enet_struct *sc) -{ - int i; - unsigned char *hwaddr; - uint32_t icr; - /* - * Issue reset to FEC - */ - g_enet_regs->ecr=0x1; - - /* - * Set the TX and RX fifo sizes. For now, we'll split it evenly - */ - /* If you uncomment these, the FEC will not work right. - g_enet_regs->r_fstart = ((g_enet_regs->r_bound & 0x3ff) >> 2) & 0x3ff; - g_enet_regs->x_fstart = 0; - */ - - /* Copy mac address to device */ - - hwaddr = sc->arpcom.ac_enaddr; - - g_enet_regs->malr = (hwaddr[0] << 24 | - hwaddr[1] << 16 | - hwaddr[2] << 8 | - hwaddr[3]); - g_enet_regs->maur = (hwaddr[4] << 24 | - hwaddr[5] << 16); - - /* - * Clear the hash table - */ - g_enet_regs->htlr = 0; - g_enet_regs->htur = 0; - - /* - * Set up receive buffer size - */ - g_enet_regs->emrbr = 0x5f0; /* set to 1520 */ - - /* - * Allocate mbuf pointers - */ - sc->rxMbuf = malloc (sc->rxBdCount * sizeof *sc->rxMbuf, - M_MBUF, M_NOWAIT); - sc->txMbuf = malloc (sc->txBdCount * sizeof *sc->txMbuf, - M_MBUF, M_NOWAIT); - if (!sc->rxMbuf || !sc->txMbuf) { - rtems_panic ("No memory for mbuf pointers"); - } - - /* - * Set receiver and transmitter buffer descriptor bases - */ - sc->rxBdBase = mcf5272_bd_allocate(sc->rxBdCount); - sc->txBdBase = mcf5272_bd_allocate(sc->txBdCount); - g_enet_regs->erdsr = (int)sc->rxBdBase; - g_enet_regs->etdsr = (int)sc->txBdBase; - - /* - * Set up Receive Control Register: - * Not promiscuous mode - * MII mode - * Full duplex - * No loopback - */ - g_enet_regs->rcr = 0x00000004; - - /* - * Set up Transmit Control Register: - * Full duplex - * No heartbeat - */ - g_enet_regs->tcr = 0x00000004; - - /* - * Set MII speed to 2.5 MHz for 25 Mhz system clock - */ - g_enet_regs->mscr = 0x0a; - g_enet_regs->mmfr = 0x58021000; - - /* - * Set up receive buffer descriptors - */ - for (i = 0 ; i < sc->rxBdCount ; i++) { - (sc->rxBdBase + i)->status = 0; - } - - /* - * Set up transmit buffer descriptors - */ - for (i = 0 ; i < sc->txBdCount ; i++) { - (sc->txBdBase + i)->status = 0; - sc->txMbuf[i] = NULL; - } - - sc->txBdHead = sc->txBdTail = 0; - sc->txBdActiveCount = 0; - - /* - * Mask all FEC interrupts and clear events - */ - g_enet_regs->eimr = (MCF5272_ENET_EIR_TXF | - MCF5272_ENET_EIR_RXF); - g_enet_regs->eir = ~0; - - /* - * Set up interrupts - */ - set_vector(enet_rx_isr, BSP_INTVEC_ERX, 1); - set_vector(enet_tx_isr, BSP_INTVEC_ETX, 1); - - /* Configure ethernet interrupts */ - icr = g_intctrl_regs->icr3; - icr = icr & ~((MCF5272_ICR3_ERX_MASK | MCF5272_ICR3_ERX_PI) | - (MCF5272_ICR3_ETX_MASK | MCF5272_ICR3_ETX_PI)); - icr |= ((MCF5272_ICR3_ERX_IPL(BSP_INTLVL_ERX) | MCF5272_ICR3_ERX_PI)| - (MCF5272_ICR3_ETX_IPL(BSP_INTLVL_ETX) | MCF5272_ICR3_ETX_PI)); - g_intctrl_regs->icr3 = icr; - -} - - -/* - * Soak up buffer descriptors that have been sent. - * Note that a buffer descriptor can't be retired as soon as it becomes - * ready. The MPC860 manual (MPC860UM/AD 07/98 Rev.1) and the MPC821 - * manual state that, "If an Ethernet frame is made up of multiple - * buffers, the user should not reuse the first buffer descriptor until - * the last buffer descriptor of the frame has had its ready bit cleared - * by the CPM". - */ -static void -mcf5272_enet_retire_tx_bd (struct mcf5272_enet_struct *sc) -{ - uint16_t status; - int i; - int nRetired; - struct mbuf *m, *n; - - i = sc->txBdTail; - nRetired = 0; - while ((sc->txBdActiveCount != 0) && - (((status = sc->txBdBase[i].status) & MCF5272_BD_READY) == 0)) { - /* - * See if anything went wrong - */ - if (status & (MCF5272_BD_DEFER | - MCF5272_BD_HEARTBEAT | - MCF5272_BD_LATE_COLLISION | - MCF5272_BD_RETRY_LIMIT | - MCF5272_BD_UNDERRUN | - MCF5272_BD_CARRIER_LOST)) { - /* - * Check for errors which stop the transmitter. - */ - if (status & (MCF5272_BD_LATE_COLLISION | - MCF5272_BD_RETRY_LIMIT | - MCF5272_BD_UNDERRUN)) { - if (status & MCF5272_BD_LATE_COLLISION) { - enet_driver[0].txLateCollision++; - } - if (status & MCF5272_BD_RETRY_LIMIT) { - enet_driver[0].txRetryLimit++; - } - if (status & MCF5272_BD_UNDERRUN) { - enet_driver[0].txUnderrun++; - } - } - if (status & MCF5272_BD_DEFER) { - enet_driver[0].txDeferred++; - } - if (status & MCF5272_BD_HEARTBEAT) { - enet_driver[0].txHeartbeat++; - } - if (status & MCF5272_BD_CARRIER_LOST) { - enet_driver[0].txLostCarrier++; - } - } - nRetired++; - if (status & MCF5272_BD_LAST) { - /* - * A full frame has been transmitted. - * Free all the associated buffer descriptors. - */ - sc->txBdActiveCount -= nRetired; - while (nRetired) { - nRetired--; - m = sc->txMbuf[sc->txBdTail]; - MFREE (m, n); - if (++sc->txBdTail == sc->txBdCount) - sc->txBdTail = 0; - } - } - if (++i == sc->txBdCount) { - i = 0; - } - } -} - -static void -mcf5272_enet_rxDaemon (void *arg) -{ - struct mcf5272_enet_struct *sc = (struct mcf5272_enet_struct *)arg; - struct ifnet *ifp = &sc->arpcom.ac_if; - struct mbuf *m; - uint16_t status; - bd_t *rxBd; - int rxBdIndex; - - /* - * Allocate space for incoming packets and start reception - */ - for (rxBdIndex = 0 ; ;) { - rxBd = sc->rxBdBase + rxBdIndex; - MGETHDR (m, M_WAIT, MT_DATA); - MCLGET (m, M_WAIT); - m->m_pkthdr.rcvif = ifp; - sc->rxMbuf[rxBdIndex] = m; - rxBd->buffer = mtod (m, void *); - rxBd->status = MCF5272_BD_EMPTY; - g_enet_regs->rdar = 0x1000000; - if (++rxBdIndex == sc->rxBdCount) { - rxBd->status |= MCF5272_BD_WRAP; - break; - } - } - - /* - * Input packet handling loop - */ - rxBdIndex = 0; - for (;;) { - rxBd = sc->rxBdBase + rxBdIndex; - - /* - * Wait for packet if there's not one ready - */ - if ((status = rxBd->status) & MCF5272_BD_EMPTY) { - /* - * Clear old events - */ - g_enet_regs->eir = MCF5272_ENET_EIR_RXF; - - /* - * Wait for packet - * Note that the buffer descriptor is checked - * *before* the event wait -- this catches the - * possibility that a packet arrived between the - * `if' above, and the clearing of the event register. - */ - while ((status = rxBd->status) & MCF5272_BD_EMPTY) { - rtems_event_set events; - - /* - * Unmask RXF (Full frame received) event - */ - g_enet_regs->eir |= MCF5272_ENET_EIR_RXF; - - rtems_bsdnet_event_receive (INTERRUPT_EVENT, - RTEMS_WAIT|RTEMS_EVENT_ANY, - RTEMS_NO_TIMEOUT, - &events); - cp; - } - } - cp; - - /* - * Check that packet is valid - */ - if (status & MCF5272_BD_LAST) { - /* - * Pass the packet up the chain. - * FIXME: Packet filtering hook could be done here. - */ - struct ether_header *eh; - - m = sc->rxMbuf[rxBdIndex]; - m->m_len = m->m_pkthdr.len = (rxBd->length - - sizeof(uint32_t) - - sizeof(struct ether_header)); - eh = mtod (m, struct ether_header *); - m->m_data += sizeof(struct ether_header); - ether_input (ifp, eh, m); - - /* - * Allocate a new mbuf - */ - MGETHDR (m, M_WAIT, MT_DATA); - MCLGET (m, M_WAIT); - m->m_pkthdr.rcvif = ifp; - sc->rxMbuf[rxBdIndex] = m; - rxBd->buffer = mtod (m, void *); - } - else { - /* - * Something went wrong with the reception - */ - if (!(status & MCF5272_BD_LAST)) { - sc->rxNotLast++; - } - if (status & MCF5272_BD_LONG) { - sc->rxGiant++; - } - if (status & MCF5272_BD_NONALIGNED) { - sc->rxNonOctet++; - } - if (status & MCF5272_BD_SHORT) { - sc->rxRunt++; - } - if (status & MCF5272_BD_CRC_ERROR) { - sc->rxBadCRC++; - } - if (status & MCF5272_BD_OVERRUN) { - sc->rxOverrun++; - } - if (status & MCF5272_BD_TRUNCATED) { - sc->rxTruncated++; - } - } - /* - * Reenable the buffer descriptor - */ - rxBd->status = (status & MCF5272_BD_WRAP) | MCF5272_BD_EMPTY; - g_enet_regs->rdar = 0x1000000; - /* - * Move to next buffer descriptor - */ - if (++rxBdIndex == sc->rxBdCount) { - rxBdIndex = 0; - } - } -} - -static void -mcf5272_enet_sendpacket (struct ifnet *ifp, struct mbuf *m) -{ - struct mcf5272_enet_struct *sc = ifp->if_softc; - volatile bd_t *firstTxBd, *txBd; - /* struct mbuf *l = NULL; */ - uint16_t status; - int nAdded; - cp; - - /* - * Free up buffer descriptors - */ - mcf5272_enet_retire_tx_bd (sc); - - /* - * Set up the transmit buffer descriptors. - * No need to pad out short packets since the - * hardware takes care of that automatically. - * No need to copy the packet to a contiguous buffer - * since the hardware is capable of scatter/gather DMA. - */ - nAdded = 0; - txBd = firstTxBd = sc->txBdBase + sc->txBdHead; - for (;;) { - cp; - /* - * Wait for buffer descriptor to become available. - */ - if ((sc->txBdActiveCount + nAdded) == sc->txBdCount) { - /* - * Clear old events - */ - g_enet_regs->eir = MCF5272_ENET_EIR_TXF; - - /* - * Wait for buffer descriptor to become available. - * Note that the buffer descriptors are checked - * *before* * entering the wait loop -- this catches - * the possibility that a buffer descriptor became - * available between the `if' above, and the clearing - * of the event register. - * This is to catch the case where the transmitter - * stops in the middle of a frame -- and only the - * last buffer descriptor in a frame can generate - * an interrupt. - */ - mcf5272_enet_retire_tx_bd (sc); - while ((sc->txBdActiveCount + nAdded) == sc->txBdCount) { - rtems_event_set events; - - cp; - /* - * Unmask TXB (buffer transmitted) and - * TXE (transmitter error) events. - */ - g_enet_regs->eir |= MCF5272_ENET_EIR_TXF; - rtems_bsdnet_event_receive (INTERRUPT_EVENT, - RTEMS_WAIT|RTEMS_EVENT_ANY, - RTEMS_NO_TIMEOUT, - &events); - cp; - mcf5272_enet_retire_tx_bd (sc); - } - } - - /* - * Don't set the READY flag till the - * whole packet has been readied. - */ - status = nAdded ? MCF5272_BD_READY : 0; - cp; - - /* - * FIXME: Why not deal with empty mbufs at at higher level? - * The IP fragmentation routine in ip_output - * can produce packet fragments with zero length. - * I think that ip_output should be changed to get - * rid of these zero-length mbufs, but for now, - * I'll deal with them here. - */ - if (m->m_len) { - cp; - /* - * Fill in the buffer descriptor - */ - txBd->buffer = mtod (m, void *); - txBd->length = m->m_len; - - sc->txMbuf[sc->txBdHead] = m; - nAdded++; - if (++sc->txBdHead == sc->txBdCount) { - status |= MCF5272_BD_WRAP; - sc->txBdHead = 0; - } - /* l = m;*/ - m = m->m_next; - } - else { - /* - * Just toss empty mbufs - */ - struct mbuf *n; - cp; - MFREE (m, n); - m = n; - /* - if (l != NULL) - l->m_next = m; - */ - } - - /* - * Set the transmit buffer status. - * Break out of the loop if this mbuf is the last in the frame. - */ - if (m == NULL) { - cp; - if (nAdded) { - cp; - status |= MCF5272_BD_LAST | MCF5272_BD_TX_CRC; - txBd->status = status; - firstTxBd->status |= MCF5272_BD_READY; - g_enet_regs->tdar = 0x1000000; - sc->txBdActiveCount += nAdded; - } - break; - } - txBd->status = status; - txBd = sc->txBdBase + sc->txBdHead; - } - cp; -/* - dump_enet_regs(); - dump_intctrl; -*/ - -} - - -void -mcf5272_enet_txDaemon (void *arg) -{ - struct mcf5272_enet_struct *sc = (struct mcf5272_enet_struct *)arg; - struct ifnet *ifp = &sc->arpcom.ac_if; - struct mbuf *m; - rtems_event_set events; - - cp; - for (;;) { - /* - * Wait for packet - */ - rtems_bsdnet_event_receive (START_TRANSMIT_EVENT, - RTEMS_EVENT_ANY | RTEMS_WAIT, - RTEMS_NO_TIMEOUT, - &events); - cp; - /* - * Send packets till queue is empty - */ - cp; - for (;;) { - cp; - /* - * Get the next mbuf chain to transmit. - */ - IF_DEQUEUE(&ifp->if_snd, m); - if (!m) - break; - mcf5272_enet_sendpacket (ifp, m); - } - ifp->if_flags &= ~IFF_OACTIVE; - } -} - - -/* - * Send packet (caller provides header). - */ -static void -mcf5272_enet_start (struct ifnet *ifp) -{ - struct mcf5272_enet_struct *sc = ifp->if_softc; - - cp; - rtems_bsdnet_event_send (sc->txDaemonTid, START_TRANSMIT_EVENT); - cp; - ifp->if_flags |= IFF_OACTIVE; -} - - -static void -mcf5272_enet_init (void *arg) -{ - struct mcf5272_enet_struct *sc = arg; - struct ifnet *ifp = &sc->arpcom.ac_if; - - if (sc->txDaemonTid == 0) { - - /* - * Set up SCC hardware - */ - mcf5272_enet_initialize_hardware (sc); - - /* - * Start driver tasks - */ - sc->txDaemonTid = rtems_bsdnet_newproc("SCtx", - 4096, - mcf5272_enet_txDaemon, - sc); - sc->rxDaemonTid = rtems_bsdnet_newproc("SCrx", - 4096, - mcf5272_enet_rxDaemon, - sc); - - } - - /* - * Set flags appropriately - */ - if (ifp->if_flags & IFF_PROMISC) { - g_enet_regs->rcr |= 0x8; - } else { - g_enet_regs->rcr &= ~0x8; - } - - /* - * Tell the world that we're running. - */ - ifp->if_flags |= IFF_RUNNING; - - /* - * Enable receiver and transmitter - */ - g_enet_regs->ecr = 0x2; -} - - -static void -mcf5272_enet_stop (struct mcf5272_enet_struct *sc) -{ - struct ifnet *ifp = &sc->arpcom.ac_if; - - ifp->if_flags &= ~IFF_RUNNING; - - /* - * Shut down receiver and transmitter - */ - g_enet_regs->ecr = 0x0; -} - - -/* - * Show interface statistics - */ -static void -enet_stats (struct mcf5272_enet_struct *sc) -{ - printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); - printf (" Not First:%-8lu", sc->rxNotFirst); - printf (" Not Last:%-8lu\n", sc->rxNotLast); - printf (" Giant:%-8lu", sc->rxGiant); - printf (" Runt:%-8lu", sc->rxRunt); - printf (" Non-octet:%-8lu\n", sc->rxNonOctet); - printf (" Bad CRC:%-8lu", sc->rxBadCRC); - printf (" Overrun:%-8lu", sc->rxOverrun); - printf (" Truncated:%-8lu\n", sc->rxTruncated); -/* printf (" Discarded:%-8lu\n", (unsigned long)mcf5272.scc1p.un.ethernet.disfc); */ - - printf (" Tx Interrupts:%-8lu", sc->txInterrupts); - printf (" Deferred:%-8lu", sc->txDeferred); - printf (" Missed Hearbeat:%-8lu\n", sc->txHeartbeat); - printf (" No Carrier:%-8lu", sc->txLostCarrier); - printf ("Retransmit Limit:%-8lu", sc->txRetryLimit); - printf (" Late Collision:%-8lu\n", sc->txLateCollision); - printf (" Underrun:%-8lu", sc->txUnderrun); - printf (" Raw output wait:%-8lu\n", sc->txRawWait); -} - - -/* - * Driver ioctl handler - */ -static int -mcf5272_enet_ioctl (struct ifnet *ifp, int command, caddr_t data) -{ - struct mcf5272_enet_struct *sc = ifp->if_softc; - int error = 0; - - switch (command) { - case SIOCGIFADDR: - case SIOCSIFADDR: - ether_ioctl (ifp, command, data); - break; - - case SIOCSIFFLAGS: - switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { - case IFF_RUNNING: - mcf5272_enet_stop (sc); - break; - - case IFF_UP: - mcf5272_enet_init (sc); - break; - - case IFF_UP | IFF_RUNNING: - mcf5272_enet_stop (sc); - mcf5272_enet_init (sc); - break; - - default: - break; - } - break; - - case SIO_RTEMS_SHOW_STATS: - enet_stats (sc); - break; - - /* - * FIXME: All sorts of multicast commands need to be added here! - */ - default: - error = EINVAL; - break; - } - return error; -} - - -int -rtems_enet_driver_attach (struct rtems_bsdnet_ifconfig *config) -{ - struct mcf5272_enet_struct *sc; - struct ifnet *ifp; - int mtu; - int unitNumber; - char *unitName; - - /* - * Parse driver name - */ - unitNumber = rtems_bsdnet_parse_driver_name (config, &unitName); - if (unitNumber < 0){ - return 0; - } - - /* - * Is driver free? - */ - if ((unitNumber < 0) || (unitNumber > NIFACES)) { - printf ("Bad unit number: %d.\n", unitNumber); - return 0; - } - - sc = &enet_driver[unitNumber]; - ifp = &sc->arpcom.ac_if; - if (ifp->if_softc != NULL) { - printf ("Driver already in use.\n"); - return 0; - } - - /* - * Process options - */ - - sc->arpcom.ac_enaddr[0] = (g_enet_regs->malr >> 24) & 0xff; - sc->arpcom.ac_enaddr[1] = (g_enet_regs->malr >> 16) & 0xff; - sc->arpcom.ac_enaddr[2] = (g_enet_regs->malr >> 8) & 0xff; - sc->arpcom.ac_enaddr[3] = (g_enet_regs->malr >> 0) & 0xff; - sc->arpcom.ac_enaddr[4] = (g_enet_regs->maur >> 24) & 0xff; - sc->arpcom.ac_enaddr[5] = (g_enet_regs->maur >> 16) & 0xff; - - if (config->mtu) { - mtu = config->mtu; - } else { - mtu = ETHERMTU; - } - - if (config->rbuf_count) { - sc->rxBdCount = config->rbuf_count; - } else { - sc->rxBdCount = RX_BUF_COUNT; - } - if (config->xbuf_count) { - sc->txBdCount = config->xbuf_count; - } else { - sc->txBdCount = TX_BUF_COUNT * TX_BD_PER_BUF; - } - sc->acceptBroadcast = !config->ignore_broadcast; - - /* - * Set up network interface values - */ - ifp->if_softc = sc; - ifp->if_unit = unitNumber; - ifp->if_name = unitName; - ifp->if_mtu = mtu; - ifp->if_init = mcf5272_enet_init; - ifp->if_ioctl = mcf5272_enet_ioctl; - ifp->if_start = mcf5272_enet_start; - ifp->if_output = ether_output; - ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; - if (ifp->if_snd.ifq_maxlen == 0) { - ifp->if_snd.ifq_maxlen = ifqmaxlen; - } - - /* - * Attach the interface - */ - if_attach (ifp); - cp; - ether_ifattach (ifp); - cp; - return 1; -}; - - |