/* $NetBSD: if_en_pci.c,v 1.1 1996/06/22 02:00:31 chuck Exp $ */ /* * * Copyright (c) 1996 Charles D. Cranor and Washington University. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles D. Cranor and * Washington University. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include __FBSDID("$FreeBSD$"); /* * i f _ e n _ p c i . c * * author: Chuck Cranor * started: spring, 1996. * * FreeBSD PCI glue for the eni155p card. * thanks to Matt Thomas for figuring out FreeBSD vs NetBSD vs etc.. diffs. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include MODULE_DEPEND(en, pci, 1, 1, 1); MODULE_DEPEND(en, atm, 1, 1, 1); MODULE_DEPEND(en, utopia, 1, 1, 1); /* * local structures */ struct en_pci_softc { /* bus independent stuff */ struct en_softc esc; /* includes "device" structure */ /* freebsd newbus glue */ struct resource *res; /* resource descriptor for registers */ struct resource *irq; /* resource descriptor for interrupt */ void *ih; /* interrupt handle */ }; static void eni_get_macaddr(device_t, struct en_pci_softc *); static void adp_get_macaddr(struct en_pci_softc *); /* * address of config base memory address register in PCI config space * (this is card specific) */ #define PCI_CBMA 0x10 /* * tonga (pci bridge). ENI cards only! */ #define EN_TONGA 0x60 /* PCI config addr of tonga reg */ #define TONGA_SWAP_DMA 0x80 /* endian swap control */ #define TONGA_SWAP_BYTE 0x40 #define TONGA_SWAP_WORD 0x20 #define TONGA_READ_MULT 0x00 #define TONGA_READ_MEM 0x04 #define TONGA_READ_IVAN 0x08 #define TONGA_READ_KEN 0x0C /* * adaptec pci bridge. ADP cards only! */ #define ADP_PCIREG 0x050040 /* PCI control register */ #define ADP_PCIREG_RESET 0x1 /* reset card */ #define ADP_PCIREG_IENABLE 0x2 /* interrupt enable */ #define ADP_PCIREG_SWAP_WORD 0x4 /* swap byte on slave access */ #define ADP_PCIREG_SWAP_DMA 0x8 /* swap byte on DMA */ #define PCI_VENDOR_EFFICIENTNETS 0x111a /* Efficent Networks */ #define PCI_PRODUCT_EFFICIENTNETS_ENI155PF 0x0000 /* ENI-155P ATM */ #define PCI_PRODUCT_EFFICIENTNETS_ENI155PA 0x0002 /* ENI-155P ATM */ #define PCI_VENDOR_ADP 0x9004 /* adaptec */ #define PCI_PRODUCT_ADP_AIC5900 0x5900 #define PCI_PRODUCT_ADP_AIC5905 0x5905 #define PCI_VENDOR(x) ((x) & 0xFFFF) #define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF) /* * bus specific reset function [ADP only!] */ static void adp_busreset(void *v) { struct en_softc *sc = (struct en_softc *)v; uint32_t dummy; bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, ADP_PCIREG_RESET); DELAY(1000); /* let it reset */ dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); bus_space_write_4(sc->en_memt, sc->en_base, ADP_PCIREG, (ADP_PCIREG_SWAP_DMA | ADP_PCIREG_IENABLE)); dummy = bus_space_read_4(sc->en_memt, sc->en_base, ADP_PCIREG); if ((dummy & (ADP_PCIREG_SWAP_WORD | ADP_PCIREG_SWAP_DMA)) != ADP_PCIREG_SWAP_DMA) if_printf(&sc->ifatm.ifnet, "adp_busreset: Adaptec ATM did " "NOT reset!\n"); } /***********************************************************************/ /* * autoconfig stuff */ static int en_pci_probe(device_t dev) { switch (pci_get_vendor(dev)) { case PCI_VENDOR_EFFICIENTNETS: switch (pci_get_device(dev)) { case PCI_PRODUCT_EFFICIENTNETS_ENI155PF: case PCI_PRODUCT_EFFICIENTNETS_ENI155PA: device_set_desc(dev, "Efficient Networks ENI-155p"); return (0); } break; case PCI_VENDOR_ADP: switch (pci_get_device(dev)) { case PCI_PRODUCT_ADP_AIC5900: case PCI_PRODUCT_ADP_AIC5905: device_set_desc(dev, "Adaptec 155 ATM"); return (0); } break; } return (ENXIO); } static int en_pci_attach(device_t dev) { struct en_softc *sc; struct en_pci_softc *scp; u_long val; int rid, unit, error = 0; sc = device_get_softc(dev); scp = (struct en_pci_softc *)sc; unit = device_get_unit(dev); sc->ifatm.ifnet.if_unit = unit; sc->ifatm.ifnet.if_name = "en"; /* * Enable bus mastering. */ val = pci_read_config(dev, PCIR_COMMAND, 2); val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); pci_write_config(dev, PCIR_COMMAND, val, 2); /* * Map control/status registers. */ rid = PCI_CBMA; scp->res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); if (scp->res == NULL) { device_printf(dev, "could not map memory\n"); error = ENXIO; goto fail; } sc->dev = dev; sc->en_memt = rman_get_bustag(scp->res); sc->en_base = rman_get_bushandle(scp->res); /* * Allocate our interrupt. */ rid = 0; scp->irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); if (scp->irq == NULL) { device_printf(dev, "could not map interrupt\n"); bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res); error = ENXIO; goto fail; } sc->ipl = 1; /* XXX (required to enable interrupt on midway) */ /* figure out if we are an adaptec card or not */ sc->is_adaptec = (pci_get_vendor(dev) == PCI_VENDOR_ADP) ? 1 : 0; /* * set up pci bridge */ if (sc->is_adaptec) { adp_get_macaddr(scp); sc->en_busreset = adp_busreset; adp_busreset(sc); } else { eni_get_macaddr(dev, scp); sc->en_busreset = NULL; pci_write_config(dev, EN_TONGA, TONGA_SWAP_DMA | TONGA_READ_IVAN, 4); } /* * Common attach stuff */ if ((error = en_attach(sc)) != 0) { device_printf(dev, "attach failed\n"); bus_teardown_intr(dev, scp->irq, scp->ih); bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq); bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res); goto fail; } /* * Do the interrupt SETUP last just before returning */ error = bus_setup_intr(dev, scp->irq, INTR_TYPE_NET, en_intr, sc, &scp->ih); if (error) { en_reset(sc); atm_ifdetach(&sc->ifatm.ifnet); device_printf(dev, "could not setup irq\n"); bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq); bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res); en_destroy(sc); goto fail; } return (0); fail: return (error); } /* * Detach the adapter */ static int en_pci_detach(device_t dev) { struct en_softc *sc = device_get_softc(dev); struct en_pci_softc *scp = (struct en_pci_softc *)sc; /* * Stop DMA and drop transmit queue. */ if ((sc->ifatm.ifnet.if_flags & IFF_RUNNING)) { if_printf(&sc->ifatm.ifnet, "still running\n"); sc->ifatm.ifnet.if_flags &= ~IFF_RUNNING; } /* * Close down routes etc. */ en_reset(sc); atm_ifdetach(&sc->ifatm.ifnet); /* * Deallocate resources. */ bus_teardown_intr(dev, scp->irq, scp->ih); bus_release_resource(dev, SYS_RES_IRQ, 0, scp->irq); bus_release_resource(dev, SYS_RES_MEMORY, PCI_CBMA, scp->res); /* * Free all the driver internal resources */ en_destroy(sc); return (0); } static int en_pci_shutdown(device_t dev) { struct en_pci_softc *psc = device_get_softc(dev); en_reset(&psc->esc); DELAY(10); /* is this necessary? */ return (0); } /* * Get the MAC address from an Adaptec board. No idea how to get * serial number or other stuff, because I have no documentation for that * card. */ static void adp_get_macaddr(struct en_pci_softc *scp) { struct en_softc * sc = (struct en_softc *)scp; int lcv; for (lcv = 0; lcv < sizeof(sc->ifatm.mib.esi); lcv++) sc->ifatm.mib.esi[lcv] = bus_space_read_1(sc->en_memt, sc->en_base, MID_ADPMACOFF + lcv); } /* * Read station (MAC) address from serial EEPROM. * derived from linux drivers/atm/eni.c by Werner Almesberger, EPFL LRC. */ #define EN_PROM_MAGIC 0x0c #define EN_PROM_DATA 0x02 #define EN_PROM_CLK 0x01 #define EN_ESI 64 #define EN_SERIAL 112 /* * Read a byte from the given address in the EEPROM */ static uint8_t eni_get_byte(device_t dev, uint32_t *data, u_int address) { int j; uint8_t tmp; address = (address << 1) + 1; /* start operation */ *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data &= ~EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); *data &= ~EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); /* send address with serial line */ for ( j = 7 ; j >= 0 ; j --) { *data = ((address >> j) & 1) ? (*data | EN_PROM_DATA) : (*data & ~EN_PROM_DATA); pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data &= ~EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); } /* get ack */ *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data = pci_read_config(dev, EN_TONGA, 4); *data &= ~EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); tmp = 0; for ( j = 7 ; j >= 0 ; j --) { tmp <<= 1; *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data = pci_read_config(dev, EN_TONGA, 4); if(*data & EN_PROM_DATA) tmp |= 1; *data &= ~EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); } /* get ack */ *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data = pci_read_config(dev, EN_TONGA, 4); *data &= ~EN_PROM_CLK ; pci_write_config(dev, EN_TONGA, *data, 4); *data |= EN_PROM_DATA ; pci_write_config(dev, EN_TONGA, *data, 4); return (tmp); } /* * Get MAC address and other stuff from the EEPROM */ static void eni_get_macaddr(device_t dev, struct en_pci_softc *scp) { struct en_softc * sc = (struct en_softc *)scp; int i; uint32_t data, t_data; t_data = pci_read_config(dev, EN_TONGA, 4) & 0xffffff00; data = EN_PROM_MAGIC | EN_PROM_DATA | EN_PROM_CLK; pci_write_config(dev, EN_TONGA, data, 4); for (i = 0; i < sizeof(sc->ifatm.mib.esi); i ++) sc->ifatm.mib.esi[i] = eni_get_byte(dev, &data, i + EN_ESI); sc->ifatm.mib.serial = 0; for (i = 0; i < 4; i++) { sc->ifatm.mib.serial <<= 8; sc->ifatm.mib.serial |= eni_get_byte(dev, &data, i + EN_SERIAL); } /* stop operation */ data &= ~EN_PROM_DATA; pci_write_config(dev, EN_TONGA, data, 4); data |= EN_PROM_CLK; pci_write_config(dev, EN_TONGA, data, 4); data |= EN_PROM_DATA; pci_write_config(dev, EN_TONGA, data, 4); pci_write_config(dev, EN_TONGA, t_data, 4); } /* * Driver infrastructure */ static device_method_t en_methods[] = { /* Device interface */ DEVMETHOD(device_probe, en_pci_probe), DEVMETHOD(device_attach, en_pci_attach), DEVMETHOD(device_detach, en_pci_detach), DEVMETHOD(device_shutdown, en_pci_shutdown), { 0, 0 } }; static driver_t en_driver = { "en", en_methods, sizeof(struct en_pci_softc), }; static devclass_t en_devclass; DRIVER_MODULE(en, pci, en_driver, en_devclass, en_modevent, 0);