diff options
Diffstat (limited to 'bsps/shared/net/dec21140.c')
| -rw-r--r-- | bsps/shared/net/dec21140.c | 1112 |
1 files changed, 0 insertions, 1112 deletions
diff --git a/bsps/shared/net/dec21140.c b/bsps/shared/net/dec21140.c deleted file mode 100644 index 382f3d6b70..0000000000 --- a/bsps/shared/net/dec21140.c +++ /dev/null @@ -1,1112 +0,0 @@ -/* - * RTEMS driver for TULIP based Ethernet Controller - * - * Copyright (C) 1999 Emmanuel Raguet. raguet@crf.canon.fr - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - * - * ------------------------------------------------------------------------ - * [22.05.2000,StWi/CWA] added support for the DEC/Intel 21143 chip - * - * Thanks go to Andrew Klossner who provided the vital information about the - * Intel 21143 chip. FWIW: The 21143 additions to this driver were initially - * tested with a PC386 BSP using a Kingston KNE100TX with 21143PD chip. - * - * The driver will automatically detect whether there is a 21140 or 21143 - * network card in the system and activate support accordingly. It will - * look for the 21140 first. If the 21140 is not found the driver will - * look for the 21143. - * - * 2004-11-10, Joel/Richard - 21143 support works on MVME2100. - * ------------------------------------------------------------------------ - * - * 2003-03-13, Greg Menke, gregory.menke@gsfc.nasa.gov - * - * Added support for up to 8 units (which is an arbitrary limit now), - * consolidating their support into a single pair of rx/tx daemons and a - * single ISR for all vectors servicing the DEC units. The driver now - * simply uses whatever INTERRUPT_LINE the card supplies, requiring it - * be configured either by the boot monitor or bspstart() hackery. - * Tested on a MCP750 PPC based system with 2 DEC21140 boards. - * - * Also fixed a few bugs related to board configuration, start and stop. - * - */ - -#include <machine/rtems-bsd-kernel-space.h> - -#include <rtems.h> -#include <inttypes.h> - -/* - * This driver only supports architectures with the new style - * exception processing. The following checks try to keep this - * from being compiled on systems which can't support this driver. - */ - -#if defined(__i386__) - #define DEC21140_SUPPORTED - #define PCI_DRAM_OFFSET 0 -#endif -#if defined(__PPC__) - #define DEC21140_SUPPORTED -#endif - -#include <bsp.h> - -#if !defined(PCI_DRAM_OFFSET) - #undef DEC21140_SUPPORTED -#endif - -#if defined(DEC21140_SUPPORTED) -#include <rtems/pci.h> - -#if defined(__PPC__) -#include <libcpu/byteorder.h> -#include <libcpu/io.h> -#endif - -#if defined(__i386__) -#include <libcpu/byteorder.h> -#include <libcpu/page.h> -#endif - -#include <stdlib.h> -#include <stdio.h> -#include <stdarg.h> -#include <string.h> -#include <errno.h> -#include <rtems/error.h> -#include <rtems/bspIo.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 <bsp/irq.h> - -#ifdef malloc -#undef malloc -#endif -#ifdef free -#undef free -#endif - -#define DEC_DEBUG - -/* note: the 21143 isn't really a DEC, it's an Intel chip */ -#define PCI_VENDOR_ID_DEC 0x1011 -#define PCI_DEVICE_ID_DEC_21140 0x0009 -#define PCI_DEVICE_ID_DEC_21143 0x0019 - -#define DRIVER_PREFIX "dc" - -#define IO_MASK 0x3 -#define MEM_MASK 0xF - -/* command and status registers, 32-bit access, only if IO-ACCESS */ -#define ioCSR0 0x00 /* bus mode register */ -#define ioCSR1 0x08 /* transmit poll demand */ -#define ioCSR2 0x10 /* receive poll demand */ -#define ioCSR3 0x18 /* receive list base address */ -#define ioCSR4 0x20 /* transmit list base address */ -#define ioCSR5 0x28 /* status register */ -#define ioCSR6 0x30 /* operation mode register */ -#define ioCSR7 0x38 /* interrupt mask register */ -#define ioCSR8 0x40 /* missed frame counter */ -#define ioCSR9 0x48 /* Ethernet ROM register */ -#define ioCSR10 0x50 /* reserved */ -#define ioCSR11 0x58 /* full-duplex register */ -#define ioCSR12 0x60 /* SIA status register */ -#define ioCSR13 0x68 -#define ioCSR14 0x70 -#define ioCSR15 0x78 /* SIA general register */ - -/* command and status registers, 32-bit access, only if MEMORY-ACCESS */ -#define memCSR0 0x00 /* bus mode register */ -#define memCSR1 0x02 /* transmit poll demand */ -#define memCSR2 0x04 /* receive poll demand */ -#define memCSR3 0x06 /* receive list base address */ -#define memCSR4 0x08 /* transmit list base address */ -#define memCSR5 0x0A /* status register */ -#define memCSR6 0x0C /* operation mode register */ -#define memCSR7 0x0E /* interrupt mask register */ -#define memCSR8 0x10 /* missed frame counter */ -#define memCSR9 0x12 /* Ethernet ROM register */ -#define memCSR10 0x14 /* reserved */ -#define memCSR11 0x16 /* full-duplex register */ -#define memCSR12 0x18 /* SIA status register */ -#define memCSR13 0x1A -#define memCSR14 0x1C -#define memCSR15 0x1E /* SIA general register */ - -#define DEC_REGISTER_SIZE 0x100 /* to reserve virtual memory */ - - - - -#define RESET_CHIP 0x00000001 -#if defined(__PPC__) -#define CSR0_MODE 0x0030e002 /* 01b08000 */ -#else -#define CSR0_MODE 0x0020e002 /* 01b08000 */ -#endif -#define ROM_ADDRESS 0x00004800 -#define CSR6_INIT 0x022cc000 /* 022c0000 020c0000 */ -#define CSR6_TX 0x00002000 -#define CSR6_TXRX 0x00002002 -#define IT_SETUP 0x000100c0 /* 000100e0 */ -#define CLEAR_IT 0xFFFFFFFF -#define NO_IT 0x00000000 - -/* message descriptor entry */ -struct MD { - /* used by hardware */ - volatile uint32_t status; - volatile uint32_t counts; - volatile uint32_t buf1, buf2; - /* used by software */ - volatile struct mbuf *m; - volatile struct MD *next; -} __attribute__ ((packed)); - -/* -** These buffers allocated for each unit, so ensure -** -** rtems_bsdnet_config.mbuf_bytecount -** rtems_bsdnet_config.mbuf_cluster_bytecount -** -** are adequately sized to provide enough clusters and mbufs for all the -** units. The default bsdnet configuration is sufficient for one dec -** unit, but will be nearing exhaustion with 2 or more. Although a -** little expensive in memory, the following configuration should -** eliminate all mbuf/cluster issues; -** -** rtems_bsdnet_config.mbuf_bytecount = 128*1024; -** rtems_bsdnet_config.mbuf_cluster_bytecount = 256*1024; -*/ - -#define NRXBUFS 16 /* number of receive buffers */ -#define NTXBUFS 16 /* number of transmit buffers */ - -/* - * Number of DEC boards supported by this driver - */ -#define NDECDRIVER 8 - -/* - * Receive buffer size -- Allow for a full ethernet packet including CRC - */ -#define RBUF_SIZE 1536 - -#define ET_MINLEN 60 /* minimum message length */ - -/* -** Events, one per unit. The event is sent to the rx task from the isr -** or from the stack to the tx task whenever a unit needs service. The -** rx/tx tasks identify the requesting unit(s) by their particular -** events so only requesting units are serviced. -*/ - -static rtems_event_set unit_signals[NDECDRIVER]= { RTEMS_EVENT_1, - RTEMS_EVENT_2, - RTEMS_EVENT_3, - RTEMS_EVENT_4, - RTEMS_EVENT_5, - RTEMS_EVENT_6, - RTEMS_EVENT_7, - RTEMS_EVENT_8 }; - -#if defined(__PPC__) -#define phys_to_bus(address) ((unsigned int)((address)) + PCI_DRAM_OFFSET) -#define bus_to_phys(address) ((unsigned int)((address)) - PCI_DRAM_OFFSET) -#define CPU_CACHE_ALIGNMENT_FOR_BUFFER PPC_CACHE_ALIGNMENT -#else -extern void Wait_X_ms( unsigned int timeToWait ); -#define phys_to_bus(address) ((unsigned int) ((address))) -#define bus_to_phys(address) ((unsigned int) ((address))) -#define rtems_bsp_delay_in_bus_cycles(cycle) Wait_X_ms( cycle/100 ) -#define CPU_CACHE_ALIGNMENT_FOR_BUFFER PG_SIZE -#endif - -#if (MCLBYTES < RBUF_SIZE) -# error "Driver must have MCLBYTES > RBUF_SIZE" -#endif - -/* - * Per-device data - */ -struct dec21140_softc { - - struct arpcom arpcom; - - rtems_irq_connect_data irqInfo; - rtems_event_set ioevent; - - int numRxbuffers, numTxbuffers; - - volatile struct MD *MDbase; - volatile struct MD *nextRxMD; - volatile unsigned char *bufferBase; - int acceptBroadcast; - - volatile struct MD *TxMD; - volatile struct MD *SentTxMD; - int PendingTxCount; - int TxSuspended; - - unsigned int port; - volatile uint32_t *base; - - /* - * 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 rxCollision; - - 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 dec21140_softc dec21140_softc[NDECDRIVER]; -static rtems_id rxDaemonTid; -static rtems_id txDaemonTid; - -void dec21140_txDaemon (void *arg); - -/* - * This routine reads a word (16 bits) from the serial EEPROM. - */ -/* EEPROM_Ctrl bits. */ -#define EE_SHIFT_CLK 0x02 /* EEPROM shift clock. */ -#define EE_CS 0x01 /* EEPROM chip select. */ -#define EE_DATA_WRITE 0x04 /* EEPROM chip data in. */ -#define EE_WRITE_0 0x01 -#define EE_WRITE_1 0x05 -#define EE_DATA_READ 0x08 /* EEPROM chip data out. */ -#define EE_ENB (0x4800 | EE_CS) - -/* The EEPROM commands include the alway-set leading bit. */ -#define EE_WRITE_CMD (5 << 6) -#define EE_READ_CMD (6 << 6) -#define EE_ERASE_CMD (7 << 6) - -static int eeget16(volatile uint32_t *ioaddr, int location) -{ - int i; - unsigned short retval = 0; - int read_cmd = location | EE_READ_CMD; - - st_le32(ioaddr, EE_ENB & ~EE_CS); - st_le32(ioaddr, EE_ENB); - - /* Shift the read command bits out. */ - for (i = 10; i >= 0; i--) { - short dataval = (read_cmd & (1 << i)) ? EE_DATA_WRITE : 0; - st_le32(ioaddr, EE_ENB | dataval); - rtems_bsp_delay_in_bus_cycles(200); - st_le32(ioaddr, EE_ENB | dataval | EE_SHIFT_CLK); - rtems_bsp_delay_in_bus_cycles(200); - st_le32(ioaddr, EE_ENB | dataval); /* Finish EEPROM a clock tick. */ - rtems_bsp_delay_in_bus_cycles(200); - } - st_le32(ioaddr, EE_ENB); - - for (i = 16; i > 0; i--) { - st_le32(ioaddr, EE_ENB | EE_SHIFT_CLK); - rtems_bsp_delay_in_bus_cycles(200); - retval = (retval << 1) | ((ld_le32(ioaddr) & EE_DATA_READ) ? 1 : 0); - st_le32(ioaddr, EE_ENB); - rtems_bsp_delay_in_bus_cycles(200); - } - - /* Terminate the EEPROM access. */ - st_le32(ioaddr, EE_ENB & ~EE_CS); - return ( ((retval<<8)&0xff00) | ((retval>>8)&0xff) ); -} - -static void no_op(const rtems_irq_connect_data* irq) -{ - return; -} - -/* - * DEC21140 interrupt handler - */ -static rtems_isr -dec21140Enet_interrupt_handler ( struct dec21140_softc *sc ) -{ - volatile uint32_t *tbase; - uint32_t status; - - tbase = (uint32_t*)(sc->base); - - /* - * Read status - */ - status = ld_le32(tbase+memCSR5); - st_le32((tbase+memCSR5), status); - - /* - * Frame received? - */ - if( status & 0x000000c0 ) - { - sc->rxInterrupts++; - rtems_bsdnet_event_send(rxDaemonTid, sc->ioevent); - } -} - -static rtems_isr -dec21140Enet_interrupt_handler_entry(void) -{ - int i; - - /* - ** Check all the initialized dec units for interrupt service - */ - - for(i=0; i< NDECDRIVER; i++ ) - { - if( dec21140_softc[i].base ) - dec21140Enet_interrupt_handler( &dec21140_softc[i] ); - } -} - -/* - * Initialize the ethernet hardware - */ -static void -dec21140Enet_initialize_hardware (struct dec21140_softc *sc) -{ - int i,st; - volatile uint32_t *tbase; - volatile unsigned char *cp, *setup_frm, *eaddrs; - volatile unsigned char *buffer; - volatile struct MD *rmd; - - -#ifdef DEC_DEBUG - printk("dec2114x : %02x:%02x:%02x:%02x:%02x:%02x name '%s%d', io %x, mem %x, int %d\n", - sc->arpcom.ac_enaddr[0], sc->arpcom.ac_enaddr[1], - sc->arpcom.ac_enaddr[2], sc->arpcom.ac_enaddr[3], - sc->arpcom.ac_enaddr[4], sc->arpcom.ac_enaddr[5], - sc->arpcom.ac_if.if_name, sc->arpcom.ac_if.if_unit, - sc->port, (unsigned) sc->base, sc->irqInfo.name ); -#endif - - tbase = sc->base; - - /* - * WARNING : First write in CSR6 - * Then Reset the chip ( 1 in CSR0) - */ - st_le32( (tbase+memCSR6), CSR6_INIT); - st_le32( (tbase+memCSR0), RESET_CHIP); - rtems_bsp_delay_in_bus_cycles(200); - - st_le32( (tbase+memCSR7), NO_IT); - - /* - * Init CSR0 - */ - st_le32( (tbase+memCSR0), CSR0_MODE); - - /* - * Init RX ring - */ - cp = (volatile unsigned char *)malloc(((sc->numRxbuffers+sc->numTxbuffers)*sizeof(struct MD)) - + (sc->numTxbuffers*RBUF_SIZE) - + CPU_CACHE_ALIGNMENT_FOR_BUFFER); - sc->bufferBase = cp; - cp += (CPU_CACHE_ALIGNMENT_FOR_BUFFER - (int)cp) & (CPU_CACHE_ALIGNMENT_FOR_BUFFER - 1); -#if defined(__i386__) -#ifdef PCI_BRIDGE_DOES_NOT_ENSURE_CACHE_COHERENCY_FOR_DMA - if (_CPU_is_paging_enabled()) - _CPU_change_memory_mapping_attribute - (NULL, cp, - ((sc->numRxbuffers+sc->numTxbuffers)*sizeof(struct MD)) - + (sc->numTxbuffers*RBUF_SIZE), - PTE_CACHE_DISABLE | PTE_WRITABLE); -#endif -#endif - rmd = (volatile struct MD*)cp; - sc->MDbase = rmd; - sc->nextRxMD = sc->MDbase; - - buffer = cp + ((sc->numRxbuffers+sc->numTxbuffers)*sizeof(struct MD)); - st_le32( (tbase+memCSR3), (long)(phys_to_bus((long)(sc->MDbase)))); - - for (i=0 ; i<sc->numRxbuffers; i++) - { - struct mbuf *m; - - /* allocate an mbuf for each receive descriptor */ - MGETHDR (m, M_WAIT, MT_DATA); - MCLGET (m, M_WAIT); - m->m_pkthdr.rcvif = &sc->arpcom.ac_if; - rmd->m = m; - - rmd->buf2 = phys_to_bus(rmd+1); - rmd->buf1 = phys_to_bus(mtod(m, void *)); - rmd->status = 0x80000000; - rmd->counts = 0xfdc00000 | (RBUF_SIZE); - rmd->next = rmd+1; - rmd++; - } - /* - * mark last RX buffer. - */ - sc->MDbase [sc->numRxbuffers-1].buf2 = 0; - sc->MDbase [sc->numRxbuffers-1].counts = 0xfec00000 | (RBUF_SIZE); - sc->MDbase [sc->numRxbuffers-1].next = sc->MDbase; - - - - /* - * Init TX ring - */ - st_le32( (tbase+memCSR4), (long)(phys_to_bus((long)(rmd))) ); - for (i=0 ; i<sc->numTxbuffers; i++){ - (rmd+i)->buf2 = phys_to_bus(rmd+i+1); - (rmd+i)->buf1 = phys_to_bus(buffer + (i*RBUF_SIZE)); - (rmd+i)->counts = 0x01000000; - (rmd+i)->status = 0x0; - (rmd+i)->next = rmd+i+1; - (rmd+i)->m = 0; - } - - /* - * mark last TX buffer. - */ - (rmd+sc->numTxbuffers-1)->buf2 = phys_to_bus(rmd); - (rmd+sc->numTxbuffers-1)->next = rmd; - - - /* - * Build setup frame - */ - setup_frm = (volatile unsigned char *)(bus_to_phys(rmd->buf1)); - eaddrs = (unsigned char *)(sc->arpcom.ac_enaddr); - /* Fill the buffer with our physical address. */ - for (i = 1; i < 16; i++) { - *setup_frm++ = eaddrs[0]; - *setup_frm++ = eaddrs[1]; - *setup_frm++ = eaddrs[0]; - *setup_frm++ = eaddrs[1]; - *setup_frm++ = eaddrs[2]; - *setup_frm++ = eaddrs[3]; - *setup_frm++ = eaddrs[2]; - *setup_frm++ = eaddrs[3]; - *setup_frm++ = eaddrs[4]; - *setup_frm++ = eaddrs[5]; - *setup_frm++ = eaddrs[4]; - *setup_frm++ = eaddrs[5]; - } - - /* Add the broadcast address when doing perfect filtering */ - memset((void*) setup_frm, 0xff, 12); - rmd->counts = 0x09000000 | 192 ; - rmd->status = 0x80000000; - st_le32( (tbase+memCSR6), CSR6_INIT | CSR6_TX); - st_le32( (tbase+memCSR1), 1); - - while (rmd->status != 0x7fffffff); - rmd->counts = 0x01000000; - - sc->TxMD = rmd+1; - - sc->irqInfo.hdl = (rtems_irq_hdl)dec21140Enet_interrupt_handler_entry; - sc->irqInfo.on = no_op; - sc->irqInfo.off = no_op; - sc->irqInfo.isOn = NULL; - -#ifdef DEC_DEBUG - printk( "dec2114x: Installing IRQ %d\n", sc->irqInfo.name ); -#endif -#ifdef BSP_SHARED_HANDLER_SUPPORT - st = BSP_install_rtems_shared_irq_handler( &sc->irqInfo ); -#else - st = BSP_install_rtems_irq_handler( &sc->irqInfo ); -#endif - - if (!st) - rtems_panic ("dec2114x : Interrupt name %d already in use\n", sc->irqInfo.name ); -} - -static void -dec21140_rxDaemon (void *arg) -{ - volatile struct MD *rmd; - struct dec21140_softc *sc; - struct ifnet *ifp; - struct ether_header *eh; - struct mbuf *m; - unsigned int i,len; - rtems_event_set events; - - for (;;) - { - - rtems_bsdnet_event_receive( RTEMS_ALL_EVENTS, - RTEMS_WAIT|RTEMS_EVENT_ANY, - RTEMS_NO_TIMEOUT, - &events); - - for(i=0; i< NDECDRIVER; i++ ) - { - sc = &dec21140_softc[i]; - if( sc->base ) - { - if( events & sc->ioevent ) - { - ifp = &sc->arpcom.ac_if; - rmd = sc->nextRxMD; - - /* - ** Read off all the packets we've received on this unit - */ - while((rmd->status & 0x80000000) == 0) - { - /* printk("unit %i rx\n", ifp->if_unit ); */ - - /* pass on the packet in the mbuf */ - len = (rmd->status >> 16) & 0x7ff; - m = (struct mbuf *)(rmd->m); - m->m_len = m->m_pkthdr.len = len - sizeof(struct ether_header); - eh = mtod (m, struct ether_header *); - m->m_data += sizeof(struct ether_header); - ether_input (ifp, eh, m); - - /* get a new mbuf for the 21140 */ - MGETHDR (m, M_WAIT, MT_DATA); - MCLGET (m, M_WAIT); - m->m_pkthdr.rcvif = ifp; - rmd->m = m; - rmd->buf1 = phys_to_bus(mtod(m, void *)); - - /* mark the descriptor as ready to receive */ - rmd->status = 0x80000000; - - rmd=rmd->next; - } - - sc->nextRxMD = rmd; - } - } - } - - } -} - -static void -sendpacket (struct ifnet *ifp, struct mbuf *m) -{ - struct dec21140_softc *dp = ifp->if_softc; - volatile struct MD *tmd; - volatile unsigned char *temp; - struct mbuf *n; - unsigned int len; - volatile uint32_t *tbase; - - tbase = dp->base; - /* - * Waiting for Transmitter ready - */ - - tmd = dp->TxMD; - n = m; - - while ((tmd->status & 0x80000000) != 0) - { - tmd=tmd->next; - } - - len = 0; - temp = (volatile unsigned char *)(bus_to_phys(tmd->buf1)); - - for (;;) - { - len += m->m_len; - memcpy((void*) temp, (char *)m->m_data, m->m_len); - temp += m->m_len ; - if ((m = m->m_next) == NULL) - break; - } - - if (len < ET_MINLEN) len = ET_MINLEN; - tmd->counts = 0xe1000000 | (len & 0x7ff); - tmd->status = 0x80000000; - - st_le32( (tbase+memCSR1), 0x1); - - m_freem(n); - - dp->TxMD = tmd->next; -} - -/* - * Driver transmit daemon - */ -void -dec21140_txDaemon (void *arg) -{ - struct dec21140_softc *sc; - struct ifnet *ifp; - struct mbuf *m; - int i; - rtems_event_set events; - - for (;;) - { - /* - * Wait for packets bound for any of the dec units - */ - rtems_bsdnet_event_receive( RTEMS_ALL_EVENTS, - RTEMS_EVENT_ANY | RTEMS_WAIT, - RTEMS_NO_TIMEOUT, &events); - - for(i=0; i< NDECDRIVER; i++ ) - { - sc = &dec21140_softc[i]; - if( sc->base ) - { - if( events & sc->ioevent ) - { - ifp = &sc->arpcom.ac_if; - - /* - * Send packets till queue is empty - */ - for(;;) - { - IF_DEQUEUE(&ifp->if_snd, m); - if( !m ) break; - /* printk("unit %i tx\n", ifp->if_unit ); */ - sendpacket (ifp, m); - } - - ifp->if_flags &= ~IFF_OACTIVE; - } - } - } - - } -} - -static void -dec21140_start (struct ifnet *ifp) -{ - struct dec21140_softc *sc = ifp->if_softc; - rtems_bsdnet_event_send( txDaemonTid, sc->ioevent ); - ifp->if_flags |= IFF_OACTIVE; -} - -/* - * Initialize and start the device - */ -static void -dec21140_init (void *arg) -{ - struct dec21140_softc *sc = arg; - struct ifnet *ifp = &sc->arpcom.ac_if; - volatile uint32_t *tbase; - - /* - * Set up DEC21140 hardware if its not already been done - */ - if( !sc->irqInfo.hdl ) - { - dec21140Enet_initialize_hardware (sc); - } - - /* - * Enable RX and TX - */ - tbase = sc->base; - st_le32( (tbase+memCSR5), IT_SETUP); - st_le32( (tbase+memCSR7), IT_SETUP); - st_le32( (tbase+memCSR6), CSR6_INIT | CSR6_TXRX); - - /* - * Tell the world that we're running. - */ - ifp->if_flags |= IFF_RUNNING; -} - -/* - * Stop the device - */ -static void -dec21140_stop (struct dec21140_softc *sc) -{ - volatile uint32_t *tbase; - struct ifnet *ifp = &sc->arpcom.ac_if; - - ifp->if_flags &= ~IFF_RUNNING; - - /* - * Stop the transmitter - */ - tbase = sc->base; - st_le32( (tbase+memCSR7), NO_IT); - st_le32( (tbase+memCSR6), CSR6_INIT); - - /* free((void*)sc->bufferBase); */ -} - -/* - * Show interface statistics - */ -static void -dec21140_stats (struct dec21140_softc *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 (" Collision:%-8lu\n", sc->rxCollision); - - 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 -dec21140_ioctl (struct ifnet *ifp, ioctl_command_t command, caddr_t data) -{ - struct dec21140_softc *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: - dec21140_stop (sc); - break; - - case IFF_UP: - dec21140_init (sc); - break; - - case IFF_UP | IFF_RUNNING: - dec21140_stop (sc); - dec21140_init (sc); - break; - - default: - break; - } - break; - - case SIO_RTEMS_SHOW_STATS: - dec21140_stats (sc); - break; - - /* - * FIXME: All sorts of multicast commands need to be added here! - */ - default: - error = EINVAL; - break; - } - - return error; -} - - -/* -int iftap(struct ifnet *ifp, struct ether_header *eh, struct mbuf *m ) -{ - int i; - - if( ifp->if_unit == 1 ) return 0; - - printf("unit %i, src ", ifp->if_unit ); - for(i=0; i< ETHER_ADDR_LEN; i++) printf("%02x", (char) eh->ether_shost[i] ); - printf(" dest "); - for(i=0; i< ETHER_ADDR_LEN; i++) printf("%02x", (char) eh->ether_dhost[i] ); - printf("\n"); - - return -1; -} -*/ - -/* - * Attach an DEC21140 driver to the system - */ -int -rtems_dec21140_driver_attach (struct rtems_bsdnet_ifconfig *config, int attach) -{ - struct dec21140_softc *sc; - struct ifnet *ifp; - char *unitName; - int unitNumber; - int mtu; - unsigned char cvalue; -#if defined(__i386__) - uint32_t value; - uint8_t interrupt; -#endif - int pbus, pdev, pfun; -#if defined(__PPC__) - int tmp; - uint32_t lvalue; -#endif - - /* - * Get the instance number for the board we're going to configure - * from the user. - */ - if( (unitNumber = rtems_bsdnet_parse_driver_name(config, &unitName)) == -1 ) - { - return 0; - } - if( strcmp(unitName, DRIVER_PREFIX) ) - { - printk("dec2114x : unit name '%s' not %s\n", unitName, DRIVER_PREFIX ); - return 0; - } - - /* - * Find the board - */ - if ( pci_find_device(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21140, - unitNumber-1, &pbus, &pdev, &pfun) == -1 ) { - if ( pci_find_device(PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_21143, - unitNumber-1, &pbus, &pdev, &pfun) != -1 ) { - - /* the 21143 chip must be enabled before it can be accessed */ -#if defined(__i386__) - pci_write_config_dword(pbus, pdev, pfun, 0x40, 0 ); -#else - pci_write_config_dword(pbus, pdev, pfun, 0x40, PCI_DEVICE_ID_DEC_21143); -#endif - - } else { - printk("dec2114x : device '%s' not found on PCI bus\n", config->name ); - return 0; - } - } - -#ifdef DEC_DEBUG - else { - printk("dec21140 : found device '%s', bus 0x%02x, dev 0x%02x, func 0x%02x\n", - config->name, pbus, pdev, pfun); - } -#endif - - if ((unitNumber < 1) || (unitNumber > NDECDRIVER)) - { - printk("dec2114x : unit %i is invalid, must be (1 <= n <= %d)\n", - unitNumber, NDECDRIVER); - return 0; - } - - sc = &dec21140_softc[unitNumber - 1]; - ifp = &sc->arpcom.ac_if; - if (ifp->if_softc != NULL) - { - printk("dec2114x : unit %i already in use.\n", unitNumber ); - return 0; - } - - - /* - ** Get this unit's rx/tx event - */ - sc->ioevent = unit_signals[unitNumber-1]; - - /* - ** Save the buffer counts - */ - sc->numRxbuffers = (config->rbuf_count) ? config->rbuf_count : NRXBUFS; - sc->numTxbuffers = (config->xbuf_count) ? config->xbuf_count : NTXBUFS; - - - /* - * Get card address spaces & retrieve its isr vector - */ -#if defined(__i386__) - - pci_read_config_dword(pbus, pdev, pfun, 16, &value); - sc->port = value & ~IO_MASK; - - pci_read_config_dword(pbus, pdev, pfun, 20, &value); - if (_CPU_is_paging_enabled()) - _CPU_map_phys_address((void **) &(sc->base), - (void *)(value & ~MEM_MASK), - DEC_REGISTER_SIZE , - PTE_CACHE_DISABLE | PTE_WRITABLE); - else - sc->base = (uint32_t *)(value & ~MEM_MASK); - - pci_read_config_byte(pbus, pdev, pfun, 60, &interrupt); - cvalue = interrupt; -#endif -#if defined(__PPC__) - (void)pci_read_config_dword(pbus, - pdev, - pfun, - PCI_BASE_ADDRESS_0, - &lvalue); - - sc->port = lvalue & (unsigned int)(~IO_MASK); - - (void)pci_read_config_dword(pbus, - pdev, - pfun, - PCI_BASE_ADDRESS_1, - &lvalue); - - tmp = (unsigned int)(lvalue & (unsigned int)(~MEM_MASK)) - + (unsigned int)PCI_MEM_BASE; - - sc->base = (uint32_t*)(tmp); - - pci_read_config_byte(pbus, - pdev, - pfun, - PCI_INTERRUPT_LINE, - &cvalue); - -#endif - - /* - ** Prep the board - */ - - pci_write_config_word(pbus, pdev, pfun, - PCI_COMMAND, - (uint16_t) ( PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER ) ); - - /* - ** Store the interrupt name, we'll use it later when we initialize - ** the board. - */ - memset(&sc->irqInfo,0,sizeof(rtems_irq_connect_data)); - sc->irqInfo.name = cvalue; - - -#ifdef DEC_DEBUG - printk("dec2114x : unit %d base address %p.\n", unitNumber, sc->base); -#endif - - - /* - ** Setup ethernet address - */ - if (config->hardware_address) { - memcpy (sc->arpcom.ac_enaddr, config->hardware_address, - ETHER_ADDR_LEN); - } - else { - union {char c[64]; unsigned short s[32];} rombuf; - int i; - - for (i=0; i<32; i++){ - rombuf.s[i] = eeget16( sc->base + memCSR9, i); - } -#if defined(__i386__) - for (i=0 ; i<(ETHER_ADDR_LEN/2); i++){ - sc->arpcom.ac_enaddr[2*i] = rombuf.c[20+2*i+1]; - sc->arpcom.ac_enaddr[2*i+1] = rombuf.c[20+2*i]; - } -#endif -#if defined(__PPC__) - memcpy (sc->arpcom.ac_enaddr, rombuf.c+20, ETHER_ADDR_LEN); -#endif - } - - if (config->mtu) - mtu = config->mtu; - else - mtu = ETHERMTU; - - sc->acceptBroadcast = !config->ignore_broadcast; - - /* - * Set up network interface values - */ - -/* ifp->if_tap = iftap; */ - - ifp->if_softc = sc; - ifp->if_unit = unitNumber; - ifp->if_name = unitName; - ifp->if_mtu = mtu; - ifp->if_init = dec21140_init; - ifp->if_ioctl = dec21140_ioctl; - ifp->if_start = dec21140_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); - -#ifdef DEC_DEBUG - printk( "dec2114x : driver attached\n" ); -#endif - - /* - * Start driver tasks if this is the first dec unit initialized - */ - if (txDaemonTid == 0) - { - rxDaemonTid = rtems_bsdnet_newproc( "DCrx", 4096, - dec21140_rxDaemon, NULL); - - txDaemonTid = rtems_bsdnet_newproc( "DCtx", 4096, - dec21140_txDaemon, NULL); -#ifdef DEC_DEBUG - printk( "dec2114x : driver tasks created\n" ); -#endif - } - - return 1; -}; - -#endif /* DEC21140_SUPPORTED */ |