diff options
Diffstat (limited to 'bsps/shared/net/smc91111.c')
| -rw-r--r-- | bsps/shared/net/smc91111.c | 1653 |
1 files changed, 0 insertions, 1653 deletions
diff --git a/bsps/shared/net/smc91111.c b/bsps/shared/net/smc91111.c deleted file mode 100644 index 61703c7334..0000000000 --- a/bsps/shared/net/smc91111.c +++ /dev/null @@ -1,1653 +0,0 @@ -#include <machine/rtems-bsd-kernel-space.h> - -#include <rtems.h> -#include <errno.h> - -#include <bsp.h> - -/* - * This driver currently only supports SPARC with the old style - * exception processing and the Phytec Phycore MPC5554. - * This test keeps it from being compiled on systems which haven't been - * tested. - * - */ - -#if defined(HAS_SMC91111) - #define SMC91111_SUPPORTED -#endif - -#if defined(HAS_SMC91111) - -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> -#include <inttypes.h> -#include <rtems/error.h> -#include <rtems/rtems_bsdnet.h> -#include <rtems/irq-extension.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> - -#define SMC91111_INTERRUPT_EVENT RTEMS_EVENT_1 /* RTEMS event used by interrupt handler to signal driver tasks. This must not be any of the events used by the network task synchronization. */ -#define SMC91111_START_TRANSMIT_EVENT RTEMS_EVENT_2 /* RTEMS event used to start transmit/receive daemon. This must not be the same as INTERRUPT_EVENT. */ -#define SMC91111_TX_WAIT_EVENT RTEMS_EVENT_3 /* event to send when tx buffers become available */ - -/* Set to perms of: - 0 disables all debug output - 1 for process debug output - 2 for added data IO output: get_reg, put_reg - 4 for packet allocation/free output - 8 for only startup status, so we can tell we're installed OK - 16 dump phy read/write - 32 precise register dump - 64 dump packets -*/ -/*#define DEBUG (-1)*/ -/*#define DEBUG (-1 & ~(16))*/ -#define DEBUG (0) -/*#define DEBUG (1)*/ - -#include "smc91111config.h" -#include <libchip/smc91111.h> - -#ifdef BSP_FEATURE_IRQ_EXTENSION - #include <rtems/irq-extension.h> -#endif - -struct lan91cxx_priv_data smc91111; - -int lan91cxx_hardware_init(struct lan91cxx_priv_data *cpd); -static uint16_t lan91cxx_read_phy(struct lan91cxx_priv_data *cpd, - uint8_t phyaddr, uint8_t phyreg); -static void lan91cxx_write_phy(struct lan91cxx_priv_data *cpd, - uint8_t phyaddr, uint8_t phyreg, - uint16_t value); -static void lan91cxx_start(struct ifnet *ifp); -static void smc91111_start(struct ifnet *ifp); -static int smc_probe(struct lan91cxx_priv_data *cpd); -static void smc91111_stop(struct lan91cxx_priv_data *cpd); -static void smc91111_init(void *arg); -#ifndef BSP_FEATURE_IRQ_EXTENSION -static void lan91cxx_finish_sent(struct lan91cxx_priv_data *cpd); -#endif -#if 0 -static int lan91cxx_phy_fixed(struct lan91cxx_priv_data *cpd); -static void lan91cxx_phy_configure(struct lan91cxx_priv_data *cpd); -#endif - -#define min(l,r) ((l) < (r) ? (l) : (r)) -#define max(l,r) ((l) > (r) ? (l) : (r)) - -#ifndef BSP_FEATURE_IRQ_EXTENSION -/* \ ------------- Interrupt ------------- \ */ -static void lan91cxx_interrupt_handler(void *arg) -{ - struct lan91cxx_priv_data *cpd = arg; - unsigned short irq, event; - unsigned short oldbase; - unsigned short oldpointer; - INCR_STAT(cpd, interrupts); - DEBUG_FUNCTION(); - - HAL_READ_UINT16(cpd->base + (LAN91CXX_BS), oldbase); - oldpointer = get_reg(cpd, LAN91CXX_POINTER); - - /* Get the (unmasked) requests */ - irq = get_reg(cpd, LAN91CXX_INTERRUPT); - event = irq & (irq >> 8) & 0xff; - if (0 == event) - return; - - /*put_reg(cpd, LAN91CXX_INTERRUPT, irq ); */ /* ack interrupts */ - - if (event & LAN91CXX_INTERRUPT_ERCV_INT) { - db_printf("Early receive interrupt"); - } else if (event & LAN91CXX_INTERRUPT_EPH_INT) { - db_printf("ethernet protocol handler failures"); - } else if (event & LAN91CXX_INTERRUPT_RX_OVRN_INT) { - db_printf("receive overrun"); - } else if (event & LAN91CXX_INTERRUPT_ALLOC_INT) { - db_printf("allocation interrupt"); - } else { - - if (event & LAN91CXX_INTERRUPT_TX_SET) { - db_printf("#*tx irq\n"); - lan91cxx_finish_sent(cpd); - put_reg(cpd, LAN91CXX_INTERRUPT, - (irq & 0xff00) | LAN91CXX_INTERRUPT_TX_INT); - - /*rtems_bsdnet_event_send (cpd->txDaemonTid, SMC91111_INTERRUPT_EVENT); */ - /*put_reg(cpd, LAN91CXX_INTERRUPT, (irq & 0xff00) | LAN91CXX_INTERRUPT_TX_INT); */ - /*rtems_bsdnet_event_send (cpd->txDaemonTid, SMC91111_TX_WAIT_EVENT); */ - } - if (event & LAN91CXX_INTERRUPT_RCV_INT) { - db_printf("#*rx irq\n"); - rtems_bsdnet_event_send(cpd->rxDaemonTid, - SMC91111_INTERRUPT_EVENT); - } - if (event & - ~(LAN91CXX_INTERRUPT_TX_SET | LAN91CXX_INTERRUPT_RCV_INT)) - db_printf("Unknown interrupt\n"); - } - db_printf("out %s\n", __FUNCTION__); - - put_reg(cpd, LAN91CXX_POINTER, oldpointer); - HAL_WRITE_UINT16(cpd->base + (LAN91CXX_BS), oldbase); -} -#endif - -/* \ ------------- Rx receive ------------- \ */ - - /**/ -/* This function is called as a result of the "readpacket()" call.*/ -/* Its job is to actually fetch data for a packet from the hardware once*/ -/* memory buffers have been allocated for the packet. Note that the buffers*/ -/* may come in pieces, using a mbuf list. */ -static void lan91cxx_recv(struct lan91cxx_priv_data *cpd, struct mbuf *m) -{ - struct ifnet *ifp = &cpd->arpcom.ac_if; - struct ether_header *eh; - short mlen = 0, plen; - char *start; - rxd_t *data = NULL, val; -#if DEBUG & 64 - rxd_t lp = 0; -#else - /* start is only read with debug enabled */ - (void)start; -#endif - struct mbuf *n; - dbg_prefix = "<"; - - DEBUG_FUNCTION(); - INCR_STAT(cpd, rx_deliver); - - /* ############ read packet ############ */ - - put_reg(cpd, LAN91CXX_POINTER, - (LAN91CXX_POINTER_RCV | LAN91CXX_POINTER_READ | - LAN91CXX_POINTER_AUTO_INCR)); - val = get_data(cpd); - - /* packet length (minus header/footer) */ -#ifdef LAN91CXX_32BIT_RX - val = CYG_LE32_TO_CPU(val); - plen = (val >> 16) - 6; -#else - val = CYG_LE16_TO_CPU(val); - plen = get_data(cpd); - plen = CYG_LE16_TO_CPU(plen) - 6; -#endif - - if ( cpd->c111_reva || LAN91CXX_RX_STATUS_IS_ODD(cpd, val) ) /* RevA Odd-bit BUG */ - plen++; - - for (n = m; n; n = n->m_next) { -#ifdef LAN91CXX_32BIT_RX - if (mlen == 2) { -#if DEBUG & 64 - db_printf("Appending to last apacket\n"); -#endif - - val = get_data(cpd); - *((unsigned short *)data) = (val >> 16) & 0xffff; - plen -= 2; - data = (rxd_t *) n->m_data; - start = (char *)data; - mlen = n->m_len; - if ((data) && (mlen > 1)) { - *(unsigned short *)data = (val & 0xffff); - data = (rxd_t *)((unsigned short *)data + 1); - plen -= 2; - mlen -= 2; - } - } else { - data = (rxd_t *) n->m_data; - start = (char *)data; - mlen = n->m_len; - } -#else - data = (rxd_t *) n->m_data; - start = (char *)data; - mlen = n->m_len; -#endif - - db1_printf("<[packet : mlen 0x%x, plen 0x%x]\n", mlen, plen); - - if (data) { - while (mlen >= sizeof(*data)) { -#ifdef LAN91CXX_32BIT_RX - val = get_data(cpd); - *(unsigned short *)data = (val >> 16) & 0xffff; - data = (rxd_t *)((unsigned short *)data + 1); - *(unsigned short *)data = (val & 0xffff); - data = (rxd_t *)((unsigned short *)data + 1); -#else - *data++ = get_data(cpd); -#endif - mlen -= sizeof(*data); - plen -= sizeof(*data); - } - } else { /* must actively discard ie. read it from the chip anyway. */ - while (mlen >= sizeof(*data)) { - (void)get_data(cpd); - mlen -= sizeof(*data); - plen -= sizeof(*data); - } - } - -#if DEBUG & 64 - lp = 0; - while (((int)start) < ((int)data)) { - unsigned char a = *(start++); - unsigned char b = *(start++); - db64_printf("%02x %02x ", a, b); - lp += 2; - if (lp >= 16) { - db64_printf("\n"); - lp = 0; - } - } - db64_printf(" \n"); -#endif - } - val = get_data(cpd); /* Read control word (and potential data) unconditionally */ -#ifdef LAN91CXX_32BIT_RX - if (plen & 2) { - if (data && (mlen>1) ) { - *(unsigned short *)data = (val >> 16) & 0xffff; - data = (rxd_t *)((unsigned short *)data + 1); - val <<= 16; - mlen-=2; - } - } - if ( (plen & 1) && data && (mlen>0) ) - *(unsigned char *)data = val >> 24; -#else - val = CYG_LE16_TO_CPU(val); - cp = (unsigned char *)data; - - CYG_ASSERT(val & LAN91CXX_CONTROLBYTE_RX, "Controlbyte is not for Rx"); - CYG_ASSERT((1 == mlen) == (0 != LAN91CXX_CONTROLBYTE_IS_ODD(cpd, val)), - "Controlbyte does not match"); - if (data && (1 == mlen) && LAN91CXX_CONTROLBYTE_IS_ODD(cpd, val)) { - cval = val & 0x00ff; /* last byte contains data */ - *cp = cval; - } -#endif - - val = get_reg(cpd, LAN91CXX_FIFO_PORTS); - if (0x8000 & val) { /* Then the Rx FIFO is empty */ - db4_printf - ("<+Rx packet NOT freed, stat is %x (expected %x)\n", - val, cpd->rxpacket); - } else { - db4_printf("<+Rx packet freed %x (expected %x)\n", - 0xff & (val >> 8), cpd->rxpacket); - } - - CYG_ASSERT((0xff & (val >> 8)) == cpd->rxpacket, - "Unexpected rx packet"); - - /* ############ free packet ############ */ - /* Free packet */ - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_remrel_rx_frame); - - dbg_prefix = ""; - - /* Remove the mac header. This is different from the NetBSD stack. */ - eh = mtod(m, struct ether_header *); - m->m_data += sizeof(struct ether_header); - m->m_len -= sizeof(struct ether_header); - m->m_pkthdr.len -= sizeof(struct ether_header); - - ether_input(ifp, eh, m); - -} - -/* allocate mbuf chain */ -static struct mbuf *smc91111_allocmbufchain(int totlen, struct ifnet *ifp) -{ - - struct mbuf *m, *m0, *newm; - int len; - - MGETHDR(m0, M_DONTWAIT, MT_DATA); - if (m0 == 0) - return (0); - m0->m_pkthdr.rcvif = ifp; - m0->m_pkthdr.len = totlen; - len = MHLEN; - m = m0; - - /* This loop goes through and allocates mbufs for all the data we will be copying in. */ - while (totlen > 0) { - if (totlen >= MINCLSIZE) { - MCLGET(m, M_DONTWAIT); - if ((m->m_flags & M_EXT) == 0) - goto bad; - len = MCLBYTES; - } - - if (m == m0) { - caddr_t newdata = (caddr_t) - ALIGN(m->m_data + - sizeof(struct ether_header)) - - sizeof(struct ether_header); - len -= newdata - m->m_data; - m->m_data = newdata; - } - - m->m_len = len = min(totlen, len); - - totlen -= len; - if (totlen > 0) { - MGET(newm, M_DONTWAIT, MT_DATA); - if (newm == 0) - goto bad; - len = MLEN; - m = m->m_next = newm; - } - } - return (m0); - - bad: - m_freem(m0); - return (0); -} - -static int readpacket(struct lan91cxx_priv_data *cpd) -{ - struct mbuf *m; - unsigned short stat, complen; - struct ifnet *ifp = &cpd->arpcom.ac_if; -#ifdef LAN91CXX_32BIT_RX - uint32_t val; -#endif - - DEBUG_FUNCTION(); - - /* ############ read packet nr ############ */ - stat = get_reg(cpd, LAN91CXX_FIFO_PORTS); - db1_printf("+LAN91CXX_FIFO_PORTS: 0x%04x\n", stat); - - if (0x8000 & stat) { - /* Then the Rx FIFO is empty */ - db4_printf("!RxEvent with empty fifo\n"); - return 0; - } - - INCR_STAT(cpd, rx_count); - - db4_printf("+Rx packet allocated %x (previous %x)\n", - 0xff & (stat >> 8), cpd->rxpacket); - - /* There is an Rx Packet ready */ - cpd->rxpacket = 0xff & (stat >> 8); - - /* ############ read packet header ############ */ - /* Read status and (word) length */ - put_reg(cpd, LAN91CXX_POINTER, - (LAN91CXX_POINTER_RCV | LAN91CXX_POINTER_READ | - LAN91CXX_POINTER_AUTO_INCR | 0x0000)); -#ifdef LAN91CXX_32BIT_RX - val = get_data(cpd); - val = CYG_LE32_TO_CPU(val); - stat = val & 0xffff; - complen = ((val >> 16) & 0xffff) - 6; /* minus header/footer words */ -#else - stat = get_data(cpd); - stat = CYG_LE16_TO_CPU(stat); - complen = get_data(cpd); - complen = CYG_LE16_TO_CPU(len) - 6; /* minus header/footer words */ -#endif - -#ifdef KEEP_STATISTICS - if (stat & LAN91CXX_RX_STATUS_ALIGNERR) - INCR_STAT(cpd, rx_align_errors); - /*if ( stat & LAN91CXX_RX_STATUS_BCAST ) INCR_STAT( ); */ - if (stat & LAN91CXX_RX_STATUS_BADCRC) - INCR_STAT(cpd, rx_crc_errors); - if (stat & LAN91CXX_RX_STATUS_TOOLONG) - INCR_STAT(cpd, rx_too_long_frames); - if (stat & LAN91CXX_RX_STATUS_TOOSHORT) - INCR_STAT(cpd, rx_short_frames); - /*if ( stat & LAN91CXX_RX_STATUS_MCAST ) INCR_STAT( ); */ -#endif /* KEEP_STATISTICS */ - - if ((stat & LAN91CXX_RX_STATUS_BAD) == 0) { - INCR_STAT(cpd, rx_good); - /* Then it's OK */ - - if (cpd->c111_reva || LAN91CXX_RX_STATUS_IS_ODD(cpd, stat)) /* RevA Odd-bit BUG */ - complen++; - -#if DEBUG & 1 - db_printf("good rx - stat: 0x%04x, len: 0x%04x\n", stat, - complen); -#endif - /* Check for bogusly short packets; can happen in promisc mode: */ - /* Asserted against and checked by upper layer driver. */ - if (complen > sizeof(struct ether_header)) { - /* then it is acceptable; offer the data to the network stack */ - - complen = ((complen + 3) & ~3); - - m = smc91111_allocmbufchain(complen, ifp); - { - struct mbuf *n = m; - db_printf("mbuf-chain:"); - while (n) { - db_printf("[%" PRIxPTR ":%x]", - mtod(n, uintptr_t), - (unsigned int)(n->m_len)); - n = n->m_next; - } - db_printf("\n"); - } - - if (m) { - /* fetch packet data into mbuf chain */ - lan91cxx_recv(cpd, m); - return 1; - } - } - /*(sc->funs->eth_drv->recv)(sc, len); */ - } - - /* Not OK for one reason or another... */ - db1_printf("!bad rx: stat: 0x%04x, len: 0x%04x\n", stat, complen); - - /* ############ free packet ############ */ - /* Free packet */ - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_remrel_rx_frame); - return 1; - -} - -static void smc91111_rxDaemon(void *arg) -{ - struct lan91cxx_priv_data *cpd = arg; - rtems_event_set events; - DEBUG_FUNCTION(); - - for (;;) { - rtems_bsdnet_event_receive(INTERRUPT_EVENT, - RTEMS_WAIT | RTEMS_EVENT_ANY, - RTEMS_NO_TIMEOUT, &events); - - /* read until read fifo is empty */ - while (!(get_reg(cpd, LAN91CXX_FIFO_PORTS) & 0x8000)) { - readpacket(cpd); - } - } -} - -/* \ ------------- Tx send ------------- \ */ - -static void sendpacket(struct ifnet *ifp, struct mbuf *m) -{ - struct lan91cxx_priv_data *cpd = ifp->if_softc; - int i, len, plen, tcr, odd; - struct mbuf *n = m; - unsigned short *sdata = NULL; - unsigned short ints, control; - uint16_t packet, status; - dbg_prefix = ">"; - DEBUG_FUNCTION(); - - cpd->txbusy = 1; - - /* Worry about the TX engine stopping. */ - tcr = get_reg(cpd, LAN91CXX_TCR); - if (0 == (LAN91CXX_TCR_TXENA & tcr)) { - db1_printf("> ENGINE RESTART: tcr %x\n", tcr); - tcr |= LAN91CXX_TCR_TXENA; - put_reg(cpd, LAN91CXX_TCR, tcr); - } - - /* ############ packet allocation ############ */ - - /* Find packet length */ - plen = 0; - while (n) { - plen += n->m_len; - n = n->m_next; - } - - /* Alloc new TX packet */ - do { - put_reg(cpd, LAN91CXX_MMU_COMMAND, - LAN91CXX_MMU_alloc_for_tx | ((plen >> 8) & 0x07)); - - i = 1024 * 1024; - do { - status = get_reg(cpd, LAN91CXX_INTERRUPT); - } while (0 == (status & LAN91CXX_INTERRUPT_ALLOC_INT) - && (--i > 0)); - if (i) - packet = get_reg(cpd, LAN91CXX_PNR); - else - packet = 0xffff; - db1_printf(">+allocated packet %04x\n", packet); - - packet = packet >> 8; - if (packet & 0x80) { - /* Hm.. Isn't this a dead end? */ - db1_printf("Allocation failed! Retrying...\n"); - continue; - } - } while (0); - - db4_printf(">+Tx packet allocated %x (previous %x)\n", - packet, cpd->txpacket); - - cpd->txpacket = packet; - - /* ############ assemble packet data ############ */ - - /* prepare send */ - put_reg(cpd, LAN91CXX_PNR, packet); - /* Note: Check FIFO state here before continuing? */ - put_reg(cpd, LAN91CXX_POINTER, LAN91CXX_POINTER_AUTO_INCR | 0x0000); - /* Pointer is now set, and the proper bank is selected for */ - /* data writes. */ - - /* Prepare header: */ - put_data(cpd, CYG_CPU_TO_LE16(0)); /* reserve space for status word */ - /* packet length (includes status, byte-count and control shorts) */ - put_data(cpd, CYG_CPU_TO_LE16(0x7FE & (plen + 6))); /* Always even, always < 15xx(dec) */ - - /* Put data into buffer */ - odd = 0; - n = m; - while (n) { - sdata = (unsigned short *)n->m_data; - len = n->m_len; - - CYG_ASSERT(sdata, "!No sg data pointer here"); - - /* start on an odd offset? - * If last byte also (1byte mbuf with different pointer should not occur) - * let following code handle it - */ - if ( ((unsigned int)sdata & 1) && (len>1) ){ - put_data8(cpd,*(unsigned char *)sdata); - sdata = (unsigned short *)((unsigned int)sdata + 1); - odd = ~odd; - len--; - } - - /* speed up copying a bit, never copy last word */ - while(len >= 17){ - put_data(cpd, *(sdata)); - put_data(cpd, *(sdata+1)); - put_data(cpd, *(sdata+2)); - put_data(cpd, *(sdata+3)); - put_data(cpd, *(sdata+4)); - put_data(cpd, *(sdata+5)); - put_data(cpd, *(sdata+6)); - put_data(cpd, *(sdata+7)); - sdata += 8; - len -= 16; - } - - /* copy word wise, skip last word */ - while (len >= 3) { - put_data(cpd, *sdata++); - len -= sizeof(*sdata); - } - - /* one or two bytes left to put into fifo */ - if ( len > 1 ){ - /* the last 2bytes */ - if ( !odd || n->m_next ){ - put_data(cpd, *sdata++); - len -= sizeof(*sdata); - }else{ - /* write next byte, mark that we are not at an odd offset any more, - * remaining byte will be written outside while together with control byte. - */ - put_data8(cpd,*(unsigned char *)sdata); - sdata = (unsigned short *)((unsigned int)sdata + 1); - odd = 0; - len--; - /*break;*/ - } - }else if ( (len>0) && (n->m_next) ){ - /* one byte left to write, and more bytes is comming in next mbuf */ - put_data8(cpd,*(unsigned char *)sdata); - odd = ~odd; - } - - n = n->m_next; - } - - /* Lay down the control short unconditionally at the end. */ - /* (or it might use random memory contents) */ - control = 0; - if ( len > 0 ){ - if ( !odd ) { - /* Need to set ODD flag and insert the data */ - unsigned char onebyte = *(unsigned char *)sdata; - control = onebyte; - control |= LAN91CXX_CONTROLBYTE_ODD; - }else{ - put_data8(cpd,*(unsigned char *)sdata); - } - } - control |= LAN91CXX_CONTROLBYTE_CRC; /* Just in case... */ - put_data(cpd, CYG_CPU_TO_LE16(control)); - - m_freem(m); - CYG_ASSERT(sdata, "!No sg data pointer outside"); - - /* ############ start transmit ############ */ - - /* Ack TX empty int and unmask it. */ - ints = get_reg(cpd, LAN91CXX_INTERRUPT) & 0xff00; - put_reg(cpd, LAN91CXX_INTERRUPT, - ints | LAN91CXX_INTERRUPT_TX_EMPTY_INT); - put_reg(cpd, LAN91CXX_INTERRUPT, ints | LAN91CXX_INTERRUPT_TX_INT_M); /* notify on error only (Autorelease) */ - - /* Enqueue the packet */ - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_enq_packet); - - ints = get_reg(cpd, LAN91CXX_INTERRUPT); - db1_printf(">END: ints at TX: %04x\n", ints); - dbg_prefix = ""; -} - -static void smc91111_txDaemon(void *arg) -{ - struct lan91cxx_priv_data *cpd = arg; - struct ifnet *ifp = &cpd->arpcom.ac_if; - struct mbuf *m; - rtems_event_set events; - DEBUG_FUNCTION(); - - for (;;) { - /* - * Wait for packet - */ - - rtems_bsdnet_event_receive - (SMC91111_START_TRANSMIT_EVENT, - RTEMS_EVENT_ANY | RTEMS_WAIT, RTEMS_NO_TIMEOUT, &events); - - /*IF_DEQUEUE (&ifp->if_snd, m); - if (m) { - sendpacket (ifp, m); - } */ - - for (;;) { - IF_DEQUEUE(&ifp->if_snd, m); - if (!m) - break; - sendpacket(ifp, m); - } - ifp->if_flags &= ~IFF_OACTIVE; - - } - -} - -/* start transmit */ -static void smc91111_start(struct ifnet *ifp) -{ - struct lan91cxx_priv_data *cpd = ifp->if_softc; - - if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) - return; - - rtems_bsdnet_event_send(cpd->txDaemonTid, START_TRANSMIT_EVENT); - ifp->if_flags |= IFF_OACTIVE; - -} - -#ifndef BSP_FEATURE_IRQ_EXTENSION -/* called after a tx error interrupt, freet the packet */ -static void lan91cxx_finish_sent(struct lan91cxx_priv_data *cpd) -{ - unsigned short packet, tcr; - int saved_packet; - - DEBUG_FUNCTION(); - - INCR_STAT(cpd, tx_complete); - - saved_packet = get_reg(cpd, LAN91CXX_PNR); - - /* Ack and mask TX interrupt set */ - /*ints = get_reg(cpd, LAN91CXX_INTERRUPT) & 0xff00; - ints |= LAN91CXX_INTERRUPT_TX_SET_ACK; - ints &= ~LAN91CXX_INTERRUPT_TX_SET_M; - put_reg(cpd, LAN91CXX_INTERRUPT, ints); */ - - /* Get number of completed packet and read the status word */ - packet = get_reg(cpd, LAN91CXX_FIFO_PORTS); - db1_printf("%s:START: fifo %04x \n", __FUNCTION__, packet); - - { - unsigned short reg; - - reg = get_reg(cpd, LAN91CXX_EPH_STATUS); - - /* Covering each bit in turn... */ - if (reg & LAN91CXX_STATUS_TX_UNRN) - INCR_STAT(cpd, tx_underrun); - if (reg & LAN91CXX_STATUS_LOST_CARR) - INCR_STAT(cpd, tx_carrier_loss); - if (reg & LAN91CXX_STATUS_LATCOL) - INCR_STAT(cpd, tx_late_collisions); - if (reg & LAN91CXX_STATUS_TX_DEFR) - INCR_STAT(cpd, tx_deferred); - if (reg & LAN91CXX_STATUS_SQET) - INCR_STAT(cpd, tx_sqetesterrors); - if (reg & LAN91CXX_STATUS_16COL) - INCR_STAT(cpd, tx_max_collisions); - if (reg & LAN91CXX_STATUS_MUL_COL) - INCR_STAT(cpd, tx_mult_collisions); - if (reg & LAN91CXX_STATUS_SNGL_COL) - INCR_STAT(cpd, tx_single_collisions); - if (reg & LAN91CXX_STATUS_TX_SUC) - INCR_STAT(cpd, tx_good); - - cpd->stats.tx_total_collisions = - cpd->stats.tx_late_collisions + - cpd->stats.tx_max_collisions + - cpd->stats.tx_mult_collisions + - cpd->stats.tx_single_collisions; - - /* We do not need to look in the Counter Register (LAN91CXX_COUNTER) - because it just mimics the info we already have above. */ - } - - /* We do not really care about Tx failure. Ethernet is not a reliable - medium. But we do care about the TX engine stopping. */ - tcr = get_reg(cpd, LAN91CXX_TCR); - if (0 == (LAN91CXX_TCR_TXENA & tcr)) { - db1_printf("%s: ENGINE RESTART: tcr %x \n", __FUNCTION__, tcr); - tcr |= LAN91CXX_TCR_TXENA; - put_reg(cpd, LAN91CXX_TCR, tcr); - } - - packet &= 0xff; - - /* and then free the packet */ - put_reg(cpd, LAN91CXX_PNR, cpd->txpacket); - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_rel_packet); - - while (get_reg(cpd, LAN91CXX_MMU_COMMAND) & LAN91CXX_MMU_COMMAND_BUSY) ; - /* Don't change Packet Number Reg until busy bit is cleared */ - /* Per LAN91C111 Spec, Page 50 */ - put_reg(cpd, LAN91CXX_PNR, saved_packet); - -} -#endif - -/* \ ------------- Helpers ------------- \ */ - -/* - * Show interface statistics - */ -static void smc91111_stats(struct lan91cxx_priv_data *priv) -{ - printf("tx_good :%-8d\n", priv->stats.tx_good); - printf("tx_max_collisions :%-8d\n", priv->stats.tx_max_collisions); - printf("tx_late_collisions :%-8d\n", priv->stats.tx_late_collisions); - printf("tx_underrun :%-8d\n", priv->stats.tx_underrun); - printf("tx_carrier_loss :%-8d\n", priv->stats.tx_carrier_loss); - printf("tx_deferred :%-8d\n", priv->stats.tx_deferred); - printf("tx_sqetesterrors :%-8d\n", priv->stats.tx_sqetesterrors); - printf("tx_single_collisions:%-8d\n", priv->stats.tx_single_collisions); - printf("tx_mult_collisions :%-8d\n", priv->stats.tx_mult_collisions); - printf("tx_total_collisions :%-8d\n", priv->stats.tx_total_collisions); - printf("rx_good :%-8d\n", priv->stats.rx_good); - printf("rx_crc_errors :%-8d\n", priv->stats.rx_crc_errors); - printf("rx_align_errors :%-8d\n", priv->stats.rx_align_errors); - printf("rx_resource_errors :%-8d\n", priv->stats.rx_resource_errors); - printf("rx_overrun_errors :%-8d\n", priv->stats.rx_overrun_errors); - printf("rx_collisions :%-8d\n", priv->stats.rx_collisions); - printf("rx_short_frames :%-8d\n", priv->stats.rx_short_frames); - printf("rx_too_long_frames :%-8d\n", priv->stats.rx_too_long_frames); - printf("rx_symbol_errors :%-8d\n", priv->stats.rx_symbol_errors); - printf("interrupts :%-8d\n", priv->stats.interrupts); - printf("rx_count :%-8d\n", priv->stats.rx_count); - printf("rx_deliver :%-8d\n", priv->stats.rx_deliver); - printf("rx_resource :%-8d\n", priv->stats.rx_resource); - printf("rx_restart :%-8d\n", priv->stats.rx_restart); - printf("tx_count :%-8d\n", priv->stats.tx_count); - printf("tx_complete :%-8d\n", priv->stats.tx_complete); - printf("tx_dropped :%-8d\n", priv->stats.tx_dropped); -} - -/* - * Driver ioctl handler - */ -static int smc91111_ioctl(struct ifnet *ifp, ioctl_command_t command, caddr_t data) -{ - struct lan91cxx_priv_data *cpd = ifp->if_softc; - int error = 0; - DEBUG_FUNCTION(); - - switch (command) { - case SIOCGIFADDR: - case SIOCSIFADDR: - db_printf("SIOCSIFADDR\n"); - ether_ioctl(ifp, command, data); - break; - - case SIOCSIFFLAGS: - db_printf("SIOCSIFFLAGS\n"); - switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { - case IFF_RUNNING: - smc91111_stop(cpd); - break; - - case IFF_UP: - smc91111_init(cpd); - break; - - case IFF_UP | IFF_RUNNING: - smc91111_stop(cpd); - smc91111_init(cpd); - break; - - default: - break; - } - break; - - case SIO_RTEMS_SHOW_STATS: - db_printf("SIO_RTEMS_SHOW_STATS\n"); - smc91111_stats(cpd); - break; - - /* - * FIXME: All sorts of multicast commands need to be added here! - */ - default: - error = EINVAL; - break; - } - - return error; -} - -/* - * Attach an SMC91111 driver to the system - */ -int _rtems_smc91111_driver_attach (struct rtems_bsdnet_ifconfig *config, - struct scmv91111_configuration * chip) -{ - struct ifnet *ifp; - struct lan91cxx_priv_data *cpd; - int unitNumber; - char *unitName; - int mtu; - DEBUG_FUNCTION(); - - /* parse driver name */ - if ((unitNumber = rtems_bsdnet_parse_driver_name(config, &unitName)) < 0) { - db_printf("Unitnumber < 0: %d\n", unitNumber); - return 0; - } - - db_printf("Unitnumber: %d, baseaddr: 0x%p\n", unitNumber, chip->baseaddr); - - cpd = &smc91111; - ifp = &cpd->arpcom.ac_if; - memset(cpd, 0, sizeof(*cpd)); - - cpd->config = *chip; - cpd->base = chip->baseaddr; - - if (smc_probe(cpd)) { - return 0; - } - - if (config->hardware_address) { - memcpy(cpd->arpcom.ac_enaddr, config->hardware_address, ETHER_ADDR_LEN); - } else { -#ifdef SMC91111_ENADDR_IS_SETUP - /* The address was put in the chip at reset time. Retrieve it. */ - int i; - for (i = 0; i < sizeof(cpd->enaddr); i += 2) { - unsigned short r = get_reg(cpd, LAN91CXX_IA01 + i / 2); - cpd->arpcom.ac_enaddr[i] = r; - cpd->arpcom.ac_enaddr[i+1] = r >> 8; - } -#else - /* dummy default address */ - cpd->arpcom.ac_enaddr[0] = 0x12; - cpd->arpcom.ac_enaddr[1] = 0x13; - cpd->arpcom.ac_enaddr[2] = 0x14; - cpd->arpcom.ac_enaddr[3] = 0x15; - cpd->arpcom.ac_enaddr[4] = 0x16; - cpd->arpcom.ac_enaddr[5] = 0x17; -#endif - } - - cpd->enaddr[0] = cpd->arpcom.ac_enaddr[0]; - cpd->enaddr[1] = cpd->arpcom.ac_enaddr[1]; - cpd->enaddr[2] = cpd->arpcom.ac_enaddr[2]; - cpd->enaddr[3] = cpd->arpcom.ac_enaddr[3]; - cpd->enaddr[4] = cpd->arpcom.ac_enaddr[4]; - cpd->enaddr[5] = cpd->arpcom.ac_enaddr[5]; - cpd->rpc_cur_mode = - LAN91CXX_RPCR_LEDA_RX | LAN91CXX_RPCR_LEDB_LINK | - LAN91CXX_RPCR_ANEG; - - if (config->mtu) - mtu = config->mtu; - else - mtu = ETHERMTU; - - /* - * Set up network interface values - */ - ifp->if_softc = cpd; - ifp->if_unit = unitNumber; - ifp->if_name = unitName; - ifp->if_mtu = mtu; - ifp->if_init = smc91111_init; - ifp->if_ioctl = smc91111_ioctl; - ifp->if_start = smc91111_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); - ether_ifattach(ifp); - -#if DEBUG - printf("SMC91111 : driver has been attached\n"); -#endif - - return 1; -}; - -/* \ ------------- Initialization ------------- \ */ - -/* - * Initialize and start the device - */ -static void smc91111_init(void *arg) -{ - struct lan91cxx_priv_data *cpd = arg; - struct ifnet *ifp = &cpd->arpcom.ac_if; - DEBUG_FUNCTION(); - - if (cpd->txDaemonTid == 0) { - - lan91cxx_hardware_init(cpd); - lan91cxx_start(ifp); - - cpd->rxDaemonTid = rtems_bsdnet_newproc("DCrx", 4096, - smc91111_rxDaemon, cpd); - cpd->txDaemonTid = - rtems_bsdnet_newproc("DCtx", 4096, smc91111_txDaemon, cpd); - } else { - lan91cxx_start(ifp); - } - - /* - * Tell the world that we're running. - */ - ifp->if_flags |= IFF_RUNNING; -} - -/* - * Stop the device - */ -static void smc91111_stop(struct lan91cxx_priv_data *cpd) -{ - struct ifnet *ifp = &cpd->arpcom.ac_if; - DEBUG_FUNCTION(); - - ifp->if_flags &= ~IFF_RUNNING; - - /* Reset chip */ - put_reg(cpd, LAN91CXX_RCR, LAN91CXX_RCR_SOFT_RST); - put_reg(cpd, LAN91CXX_RCR, 0); - cpd->txbusy = cpd->within_send = 0; - -} - -int lan91cxx_hardware_init(struct lan91cxx_priv_data *cpd) -{ - unsigned short val; - int i; - - DEBUG_FUNCTION(); - - cpd->txbusy = cpd->within_send = 0; - - /* install interrupt vector */ -#ifdef BSP_FEATURE_IRQ_EXTENSION - { - rtems_status_code sc = RTEMS_SUCCESSFUL; - - sc = rtems_interrupt_handler_install( - cpd->config.vector, - cpd->config.info, - cpd->config.options, - cpd->config.interrupt_wrapper, - cpd - ); - if (sc != RTEMS_SUCCESSFUL) { - printf("rtems_interrupt_handler_install returned %d.\n", sc); - return 0; - } - } -#else - { - int rc; - - db_printf("Install lan91cxx isr at vec/irq %" PRIu32 "\n", cpd->config.vector); - rc = rtems_interrupt_handler_install(cpd->config.vector, "smc91cxx", - RTEMS_INTERRUPT_SHARED, lan91cxx_interrupt_handler, cpd); - if (rc != RTEMS_SUCCESSFUL) - return 0; - } -#endif - - /* Reset chip */ - put_reg(cpd, LAN91CXX_RCR, LAN91CXX_RCR_SOFT_RST); - put_reg(cpd, LAN91CXX_RCR, 0); - HAL_DELAY_US(100000); - put_reg(cpd, LAN91CXX_CONFIG, 0x9000); - put_reg(cpd, LAN91CXX_RCR, 0); - put_reg(cpd, LAN91CXX_TCR, 0); - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_reset_mmu); - - val = get_reg(cpd, LAN91CXX_EPH_STATUS); - /* probe chip by reading the signature in BS register */ - val = get_banksel(cpd); - db9_printf("LAN91CXX - supposed BankReg @ %x = %04x\n", - (unsigned int)(cpd->base + LAN91CXX_BS), val); - - if ((0xff00 & val) != 0x3300) { - printf("No 91Cxx signature"); - printf("smsc_lan91cxx_init: No 91Cxx signature found\n"); - return 0; - } - - val = get_reg(cpd, LAN91CXX_REVISION); - - db9_printf("LAN91CXX - type: %01x, rev: %01x\n", - (val >> 4) & 0xf, val & 0xf); - - /* Set RevA flag for LAN91C111 so we can cope with the odd-bit bug. */ - cpd->c111_reva = (val == 0x3390); /* 90=A, 91=B, 92=C */ - - /* The controller may provide a function used to set up the ESA */ - if (cpd->config_enaddr) - (*cpd->config_enaddr) (cpd); - - db9_printf("LAN91CXX - status: %04x\n", val); - /* Use statically configured ESA from the private data */ - db9_printf - ("LAN91CXX - static ESA: %02x:%02x:%02x:%02x:%02x:%02x\n", - cpd->enaddr[0], cpd->enaddr[1], cpd->enaddr[2], - cpd->enaddr[3], cpd->enaddr[4], cpd->enaddr[5]); - /* Set up hardware address */ - for (i = 0; i < sizeof(cpd->enaddr); i += 2) - put_reg(cpd, LAN91CXX_IA01 + i / 2, - cpd->enaddr[i] | (cpd->enaddr[i + 1] << 8)); - - return 1; -} - -/* - This function is called to "start up" the interface. It may be called - multiple times, even when the hardware is already running. It will be - called whenever something "hardware oriented" changes and should leave - the hardware ready to send/receive packets. -*/ -static void lan91cxx_start(struct ifnet *ifp) -{ - struct lan91cxx_priv_data *cpd = ifp->if_softc; - - uint16_t intr; - uint16_t phy_ctl; - int delay; - DEBUG_FUNCTION(); - - HAL_DELAY_US(100000); - - /* 91C111 Errata. Internal PHY comes up disabled. Must enable here. */ - phy_ctl = lan91cxx_read_phy(cpd, 0, LAN91CXX_PHY_CTRL); - phy_ctl &= ~LAN91CXX_PHY_CTRL_MII_DIS; - lan91cxx_write_phy(cpd, 0, LAN91CXX_PHY_CTRL, phy_ctl); - - /* Start auto-negotiation */ - put_reg(cpd, LAN91CXX_RPCR, - LAN91CXX_RPCR_LEDA_RX | LAN91CXX_RPCR_LEDB_LINK | - LAN91CXX_RPCR_ANEG); - cpd->rpc_cur_mode = - LAN91CXX_RPCR_LEDA_RX | LAN91CXX_RPCR_LEDB_LINK | - LAN91CXX_RPCR_ANEG; - - /* wait for auto-negotiation to finish. */ - /* give it ~5 seconds before giving up (no cable?) */ - delay = 50; - while (!(lan91cxx_read_phy(cpd, 0, LAN91CXX_PHY_STAT) & 0x20)) { - if (--delay <= 0) { - printf("Timeout autonegotiation\n"); - break; - } - HAL_DELAY_US(100000); - } - - put_reg(cpd, LAN91CXX_MMU_COMMAND, LAN91CXX_MMU_reset_mmu); - - put_reg(cpd, LAN91CXX_INTERRUPT, 0); /* disable interrupts */ - intr = get_reg(cpd, LAN91CXX_INTERRUPT); - put_reg(cpd, LAN91CXX_INTERRUPT, intr & /* ack old interrupts */ - (LAN91CXX_INTERRUPT_TX_INT | - LAN91CXX_INTERRUPT_TX_EMPTY_INT | - LAN91CXX_INTERRUPT_RX_OVRN_INT | LAN91CXX_INTERRUPT_ERCV_INT)); - put_reg(cpd, LAN91CXX_RCR, - LAN91CXX_RCR_STRIP_CRC | LAN91CXX_RCR_RXEN | - LAN91CXX_RCR_ALMUL); - put_reg(cpd, LAN91CXX_TCR, LAN91CXX_TCR_TXENA | LAN91CXX_TCR_PAD_EN); - put_reg(cpd, LAN91CXX_CONTROL, LAN91CXX_CONTROL_AUTO_RELEASE); /* */ - put_reg(cpd, LAN91CXX_INTERRUPT, /* enable interrupts */ - LAN91CXX_INTERRUPT_RCV_INT_M); - - if ((0 -#ifdef ETH_DRV_FLAGS_PROMISC_MODE - != (flags & ETH_DRV_FLAGS_PROMISC_MODE) -#endif - ) || (ifp->if_flags & IFF_PROMISC) - ) { - /* Then we select promiscuous mode. */ - unsigned short rcr; - rcr = get_reg(cpd, LAN91CXX_RCR); - rcr |= LAN91CXX_RCR_PRMS; - put_reg(cpd, LAN91CXX_RCR, rcr); - } -} - -/* \ ------------- Probe ------------- \ */ - -static const char *chip_ids[15] = { - NULL, NULL, NULL, - /* 3 */ "SMC91C90/91C92", - /* 4 */ "SMC91C94", - /* 5 */ "SMC91C95", - /* 6 */ "SMC91C96", - /* 7 */ "SMC91C100", - /* 8 */ "SMC91C100FD", - /* 9 */ "SMC91C11xFD", - NULL, NULL, - NULL, NULL, NULL -}; - -static int smc_probe(struct lan91cxx_priv_data *cpd) -{ - unsigned short bank; - unsigned short revision_register; - - DEBUG_FUNCTION(); - - /* First, see if the high byte is 0x33 */ - HAL_READ_UINT16(cpd->base + (LAN91CXX_BS), bank); - bank = CYG_LE16_TO_CPU(bank); - if ((bank & 0xFF00) != 0x3300) { - db_printf("<1>Smc probe bank check 1 failed.\n"); - return -ENODEV; - } - /* The above MIGHT indicate a device, but I need to write to further - test this. */ - HAL_WRITE_UINT16(cpd->base + (LAN91CXX_BS), CYG_CPU_TO_LE16(0 >> 3)); - HAL_READ_UINT16(cpd->base + (LAN91CXX_BS), bank); - bank = CYG_LE16_TO_CPU(bank); - if ((bank & 0xFF00) != 0x3300) { - db_printf("<1>Smc probe bank check 2 failed.\n"); - return -ENODEV; - } -#if SMC_DEBUG > 3 - { - unsigned short bank16, bank16_0, bank16_1; - HAL_READ_UINT16(cpd->base + (LAN91CXX_BS), bank16); - bank = CYG_LE16_TO_CPU(bank); - HAL_READ_UINT8(cpd->base + (LAN91CXX_BS), bank16_0); - HAL_READ_UINT8(cpd->base + (LAN91CXX_BS + 1), bank16_1); - - db_printf - ("smc_probe:Bank read as a 16 bit value:0x%04x\n", bank16); - db_printf - ("smc_probe:Bank read as an 8 bit value:0x%02x\n", - bank16_0); - db_printf - ("smc_probe:Bank + 1 read as an 8 bit value:0x%02x\n", - bank16_1); - } -#endif - - /* check if the revision register is something that I recognize. - These might need to be added to later, as future revisions - could be added. */ - revision_register = get_reg(cpd, LAN91CXX_REVISION); - if (!chip_ids[(revision_register >> 4) & 0xF]) { - /* I don't recognize this chip, so... */ - db_printf - ("smc_probe: IO %" PRIxPTR ": Unrecognized revision register:" - " %x, Contact author. \n", (uintptr_t)cpd->base, - revision_register); - - return -ENODEV; - } - db_printf("LAN91CXX(0x%x) - type: %s, rev: %01x\n", - revision_register, - chip_ids[(revision_register >> 4) & 0xF], - revision_register & 0xf); - - /* Set RevA flag for LAN91C111 so we can cope with the odd-bit bug. */ - if (revision_register == 0x3390) { - db_printf("!Revision A\n"); - } - - return 0; -} - -#if 0 -/* \ ------------- PHY read/write ------------- \ */ -/*Sets the PHY to a configuration as determined by the user*/ -static int lan91cxx_phy_fixed(struct lan91cxx_priv_data *cpd) -{ - int my_fixed_caps; - int cfg1; - - DEBUG_FUNCTION(); - db4_printf("lan91cxx_phy_fixed: full duplex: %d, speed: %d\n", - cpd->config.ctl_rfduplx, cpd->config.ctl_rspeed); - - /* Enter Link Disable state */ - cfg1 = lan91cxx_read_phy(cpd, 0, LAN91CXX_PHY_CONFIG1); - cfg1 |= PHY_CFG1_LNKDIS; - lan91cxx_write_phy(cpd, 0, LAN91CXX_PHY_CONFIG1, cfg1); - - /* Set our fixed capabilities, Disable auto-negotiation */ - my_fixed_caps = 0; - - if (cpd->config.ctl_rfduplx) - my_fixed_caps |= LAN91CXX_PHY_CTRL_DPLX; - - if (cpd->config.ctl_rspeed == 100) - my_fixed_caps |= LAN91CXX_PHY_CTRL_SPEED; - - /* Write capabilities to the phy control register */ - lan91cxx_write_phy(cpd, 0, LAN91CXX_PHY_CTRL, my_fixed_caps); - - /* Re-Configure the Receive/Phy Control register */ - put_reg(cpd, LAN91CXX_RPCR, cpd->rpc_cur_mode); - - return (1); -} -#endif - -#if 0 -/*Configures the specified PHY using Autonegotiation. */ -static void lan91cxx_phy_configure(struct lan91cxx_priv_data *cpd) -{ - - unsigned int phyaddr; - unsigned int my_phy_caps; /* My PHY capabilities */ - unsigned int my_ad_caps; /* My Advertised capabilities */ - unsigned int status = 0; - int failed = 0, delay; - - DEBUG_FUNCTION(); - - /* Set the blocking flag */ - cpd->autoneg_active = 1; - - /* Get the detected phy address */ - phyaddr = cpd->phyaddr; - - /* Reset the PHY, setting all other bits to zero */ - lan91cxx_write_phy(cpd, 0, PHY_CNTL_REG, PHY_CNTL_RST); - - /* Wait for the reset to complete, or time out */ - delay = 50; - while (delay--) { - if (!(lan91cxx_read_phy(cpd, 0, PHY_CNTL_REG) - & PHY_CNTL_RST)) { - break; - } - HAL_DELAY_US(100000); - } - - if (delay < 1) { - db_printf("smc91111:!PHY reset timed out\n"); - goto smc_phy_configure_exit; - } - - /* Read PHY Register 18, Status Output */ - cpd->lastPhy18 = lan91cxx_read_phy(cpd, 0, PHY_INT_REG); - - /* Enable PHY Interrupts (for register 18) */ - /* Interrupts listed here are disabled */ - lan91cxx_write_phy(cpd, 0, PHY_MASK_REG, - PHY_INT_LOSSSYNC | PHY_INT_CWRD | PHY_INT_SSD - | PHY_INT_ESD | PHY_INT_RPOL | PHY_INT_JAB | - PHY_INT_SPDDET | PHY_INT_DPLXDET); - - /* Configure the Receive/Phy Control register */ - put_reg(cpd, LAN91CXX_RPCR, cpd->rpc_cur_mode); - - /* Copy our capabilities from PHY_STAT_REG to PHY_AD_REG */ - my_phy_caps = lan91cxx_read_phy(cpd, phyaddr, PHY_STAT_REG); - my_ad_caps = PHY_AD_CSMA; /* I am CSMA capable */ - - if (my_phy_caps & PHY_STAT_CAP_T4) - my_ad_caps |= PHY_AD_T4; - - if (my_phy_caps & PHY_STAT_CAP_TXF) - my_ad_caps |= PHY_AD_TX_FDX; - - if (my_phy_caps & PHY_STAT_CAP_TXH) - my_ad_caps |= PHY_AD_TX_HDX; - - if (my_phy_caps & PHY_STAT_CAP_TF) - my_ad_caps |= PHY_AD_10_FDX; - - if (my_phy_caps & PHY_STAT_CAP_TH) - my_ad_caps |= PHY_AD_10_HDX; - - /* Disable capabilities not selected by our user */ - if (cpd->config.ctl_rspeed != 100) { - my_ad_caps &= ~(PHY_AD_T4 | PHY_AD_TX_FDX | PHY_AD_TX_HDX); - } - - if (!cpd->config.ctl_rfduplx) { - my_ad_caps &= ~(PHY_AD_TX_FDX | PHY_AD_10_FDX); - } - - /* Update our Auto-Neg Advertisement Register */ - lan91cxx_write_phy(cpd, 0, PHY_AD_REG, my_ad_caps); - - db4_printf("smc91111:phy caps=%x\n", my_phy_caps); - db4_printf("smc91111:phy advertised caps=%x\n", my_ad_caps); - - /* If the user requested no auto neg, then go set his request */ - if (!(cpd->config.ctl_autoneg)) { - lan91cxx_phy_fixed(cpd); - - goto smc_phy_configure_exit; - } - - /* Restart auto-negotiation process in order to advertise my caps */ - lan91cxx_write_phy(cpd, 0, PHY_CNTL_REG, - PHY_CNTL_ANEG_EN | PHY_CNTL_ANEG_RST); - - /* wait for auto-negotiation to finish. */ - /* give it ~5 seconds before giving up (no cable?) */ - delay = 50; - while (! - ((status = - lan91cxx_read_phy(cpd, 0, LAN91CXX_PHY_STAT)) & 0x20)) { - if (--delay <= 0) { - printf("Timeout autonegotiation\n"); - failed = 1; - break; - } - - /* Restart auto-negotiation if remote fault */ - if (status & PHY_STAT_REM_FLT) { - db_printf("smc91111:PHY remote fault detected\n"); - - /* Restart auto-negotiation */ - db_printf("smc91111:PHY restarting auto-negotiation\n"); - lan91cxx_write_phy(cpd, 0, PHY_CNTL_REG, - PHY_CNTL_ANEG_EN | - PHY_CNTL_ANEG_RST | - PHY_CNTL_SPEED | PHY_CNTL_DPLX); - } - HAL_DELAY_US(100000); - } - - /* Fail if we detected an auto-negotiate remote fault */ - if (status & PHY_STAT_REM_FLT) { - db_printf("smc91111:PHY remote fault detected\n"); - failed = 1; - } - - /* The smc_phy_interrupt() routine will be called to update lastPhy18 */ - - /* Set our sysctl parameters to match auto-negotiation results */ - if (cpd->lastPhy18 & PHY_INT_SPDDET) { - db_printf("smc91111:PHY 100BaseT\n"); - cpd->rpc_cur_mode |= LAN91CXX_RPCR_SPEED; - } else { - db_printf("smc91111:PHY 10BaseT\n"); - cpd->rpc_cur_mode &= ~LAN91CXX_RPCR_SPEED; - } - - if (cpd->lastPhy18 & PHY_INT_DPLXDET) { - db_printf("smc91111:PHY Full Duplex\n"); - cpd->rpc_cur_mode |= LAN91CXX_RPCR_DPLX; - } else { - db_printf("smc91111:PHY Half Duplex\n"); - cpd->rpc_cur_mode &= ~LAN91CXX_RPCR_DPLX; - } - - /* Re-Configure the Receive/Phy Control register */ - put_reg(cpd, LAN91CXX_RPCR, cpd->rpc_cur_mode); - - smc_phy_configure_exit: - - /* Exit auto-negotiation */ - cpd->autoneg_active = 0; -} -#endif - -static uint16_t -lan91cxx_read_phy(struct lan91cxx_priv_data *cpd, uint8_t phyaddr, - uint8_t phyreg) -{ - int i, mask, input_idx, clk_idx = 0; - uint16_t mii_reg, value; - uint8_t bits[64]; - - /* 32 consecutive ones on MDO to establish sync */ - for (i = 0; i < 32; ++i) - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - - /* Start code <01> */ - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - - /* Read command <10> */ - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - - /* Output the PHY address, msb first */ - for (mask = 0x10; mask; mask >>= 1) { - if (phyaddr & mask) - bits[clk_idx++] = - LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - else - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - } - - /* Output the phy register number, msb first */ - for (mask = 0x10; mask; mask >>= 1) { - if (phyreg & mask) - bits[clk_idx++] = - LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - else - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - } - - /* Tristate and turnaround (1 bit times) */ - bits[clk_idx++] = 0; - - /* Input starts at this bit time */ - input_idx = clk_idx; - - /* Will input 16 bits */ - for (i = 0; i < 16; ++i) - bits[clk_idx++] = 0; - - /* Final clock bit */ - bits[clk_idx++] = 0; - - /* Get the current MII register value */ - mii_reg = get_reg(cpd, LAN91CXX_MGMT); - - /* Turn off all MII Interface bits */ - mii_reg &= ~(LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MCLK | - LAN91CXX_MGMT_MDI | LAN91CXX_MGMT_MDO); - HAL_DELAY_US(50); - - /* Clock all 64 cycles */ - for (i = 0; i < sizeof(bits); ++i) { - /* Clock Low - output data */ - put_reg(cpd, LAN91CXX_MGMT, mii_reg | bits[i]); - HAL_DELAY_US(50); - - /* Clock Hi - input data */ - put_reg(cpd, LAN91CXX_MGMT, - mii_reg | bits[i] | LAN91CXX_MGMT_MCLK); - HAL_DELAY_US(50); - - bits[i] |= get_reg(cpd, LAN91CXX_MGMT) & LAN91CXX_MGMT_MDI; - } - - /* Return to idle state */ - put_reg(cpd, LAN91CXX_MGMT, mii_reg); - HAL_DELAY_US(50); - - /* Recover input data */ - for (value = 0, i = 0; i < 16; ++i) { - value <<= 1; - if (bits[input_idx++] & LAN91CXX_MGMT_MDI) - value |= 1; - } - - db16_printf("phy_read : %d : %04x\n", phyreg, value); - return value; -} - -static void -lan91cxx_write_phy(struct lan91cxx_priv_data *cpd, uint8_t phyaddr, - uint8_t phyreg, uint16_t value) -{ - int i, mask, clk_idx = 0; - uint16_t mii_reg; - uint8_t bits[65]; - - /* 32 consecutive ones on MDO to establish sync */ - for (i = 0; i < 32; ++i) - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - - /* Start code <01> */ - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - - /* Write command <01> */ - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - bits[clk_idx++] = LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - - /* Output the PHY address, msb first */ - for (mask = 0x10; mask; mask >>= 1) { - if (phyaddr & mask) - bits[clk_idx++] = - LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - else - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - } - - /* Output the phy register number, msb first */ - for (mask = 0x10; mask; mask >>= 1) { - if (phyreg & mask) - bits[clk_idx++] = - LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - else - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - } - - /* Tristate and turnaround (2 bit times) */ - bits[clk_idx++] = 0; - bits[clk_idx++] = 0; - - /* Write out 16 bits of data, msb first */ - for (mask = 0x8000; mask; mask >>= 1) { - if (value & mask) - bits[clk_idx++] = - LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MDO; - else - bits[clk_idx++] = LAN91CXX_MGMT_MDOE; - } - - /* Final clock bit (tristate) */ - bits[clk_idx++] = 0; - - /* Get the current MII register value */ - mii_reg = get_reg(cpd, LAN91CXX_MGMT); - - /* Turn off all MII Interface bits */ - mii_reg &= ~(LAN91CXX_MGMT_MDOE | LAN91CXX_MGMT_MCLK | - LAN91CXX_MGMT_MDI | LAN91CXX_MGMT_MDO); - HAL_DELAY_US(50); - - /* Clock all cycles */ - for (i = 0; i < sizeof(bits); ++i) { - /* Clock Low - output data */ - put_reg(cpd, LAN91CXX_MGMT, mii_reg | bits[i]); - HAL_DELAY_US(50); - - /* Clock Hi - input data */ - put_reg(cpd, LAN91CXX_MGMT, - mii_reg | bits[i] | LAN91CXX_MGMT_MCLK); - HAL_DELAY_US(50); - -/* bits[i] |= get_reg(cpd, LAN91CXX_MGMT) & LAN91CXX_MGMT_MDI;*/ - } - - /* Return to idle state */ - put_reg(cpd, LAN91CXX_MGMT, mii_reg); - HAL_DELAY_US(50); - - db16_printf("phy_write: %d : %04x\n", phyreg, value); -} - -#if 0 -void lan91cxx_print_bank(int bank){ - struct lan91cxx_priv_data *cpd = &smc91111; - int regno; - unsigned short regval[8]; - int i; - - if ( bank >= 4 ) - return; - for(i=0; i<8; i++){ - regno=i+bank<<3; - regval[i] = get_reg(cpd, regno); - } - printk("---- BANK %d ----\n\r",bank); - for(i=0; i<8; i++){ - printk("0x%x: 0x%x\n\r",i,regval[i]); - } - -} -#endif - -#endif |