diff options
Diffstat (limited to 'sys/dev/esp/esp_sbus.c')
| -rw-r--r-- | sys/dev/esp/esp_sbus.c | 846 |
1 files changed, 0 insertions, 846 deletions
diff --git a/sys/dev/esp/esp_sbus.c b/sys/dev/esp/esp_sbus.c deleted file mode 100644 index c7f4cbbc9d29..000000000000 --- a/sys/dev/esp/esp_sbus.c +++ /dev/null @@ -1,846 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND BSD-2-Clause-NetBSD - * - * Copyright (c) 2004 Scott Long - * Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org> - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. - * - */ - -/* $NetBSD: esp_sbus.c,v 1.51 2009/09/17 16:28:12 tsutsui Exp $ */ - -/*- - * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Charles M. Hannum; Jason R. Thorpe of the Numerical Aerospace - * Simulation Facility, NASA Ames Research Center; Paul Kranenburg. - * - * 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. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``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 FOUNDATION OR CONTRIBUTORS - * 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/bus.h> -#include <sys/kernel.h> -#include <sys/lock.h> -#include <sys/module.h> -#include <sys/mutex.h> -#include <sys/rman.h> - -#include <dev/ofw/ofw_bus.h> -#include <dev/ofw/openfirm.h> -#include <machine/bus.h> -#include <machine/ofw_machdep.h> -#include <machine/resource.h> - -#include <cam/cam.h> -#include <cam/cam_ccb.h> -#include <cam/scsi/scsi_all.h> -#include <cam/scsi/scsi_message.h> - -#include <sparc64/sbus/lsi64854reg.h> -#include <sparc64/sbus/lsi64854var.h> -#include <sparc64/sbus/sbusvar.h> - -#include <dev/esp/ncr53c9xreg.h> -#include <dev/esp/ncr53c9xvar.h> - -/* #define ESP_SBUS_DEBUG */ - -struct esp_softc { - struct ncr53c9x_softc sc_ncr53c9x; /* glue to MI code */ - device_t sc_dev; - - struct resource *sc_res; - - struct resource *sc_irqres; - void *sc_irq; - - struct lsi64854_softc *sc_dma; /* pointer to my DMA */ -}; - -static int esp_probe(device_t); -static int esp_dma_attach(device_t); -static int esp_dma_detach(device_t); -static int esp_sbus_attach(device_t); -static int esp_sbus_detach(device_t); -static int esp_suspend(device_t); -static int esp_resume(device_t); - -static device_method_t esp_dma_methods[] = { - DEVMETHOD(device_probe, esp_probe), - DEVMETHOD(device_attach, esp_dma_attach), - DEVMETHOD(device_detach, esp_dma_detach), - DEVMETHOD(device_suspend, esp_suspend), - DEVMETHOD(device_resume, esp_resume), - - DEVMETHOD_END -}; - -static driver_t esp_dma_driver = { - "esp", - esp_dma_methods, - sizeof(struct esp_softc) -}; - -DRIVER_MODULE(esp, dma, esp_dma_driver, esp_devclass, 0, 0); -MODULE_DEPEND(esp, dma, 1, 1, 1); - -static device_method_t esp_sbus_methods[] = { - DEVMETHOD(device_probe, esp_probe), - DEVMETHOD(device_attach, esp_sbus_attach), - DEVMETHOD(device_detach, esp_sbus_detach), - DEVMETHOD(device_suspend, esp_suspend), - DEVMETHOD(device_resume, esp_resume), - - DEVMETHOD_END -}; - -static driver_t esp_sbus_driver = { - "esp", - esp_sbus_methods, - sizeof(struct esp_softc) -}; - -DRIVER_MODULE(esp, sbus, esp_sbus_driver, esp_devclass, 0, 0); -MODULE_DEPEND(esp, sbus, 1, 1, 1); - -/* - * Functions and the switch for the MI code - */ -static uint8_t esp_read_reg(struct ncr53c9x_softc *sc, int reg); -static void esp_write_reg(struct ncr53c9x_softc *sc, int reg, uint8_t v); -static int esp_dma_isintr(struct ncr53c9x_softc *sc); -static void esp_dma_reset(struct ncr53c9x_softc *sc); -static int esp_dma_intr(struct ncr53c9x_softc *sc); -static int esp_dma_setup(struct ncr53c9x_softc *sc, void **addr, - size_t *len, int datain, size_t *dmasize); -static void esp_dma_go(struct ncr53c9x_softc *sc); -static void esp_dma_stop(struct ncr53c9x_softc *sc); -static int esp_dma_isactive(struct ncr53c9x_softc *sc); -static int espattach(struct esp_softc *esc, - const struct ncr53c9x_glue *gluep); -static int espdetach(struct esp_softc *esc); - -static const struct ncr53c9x_glue esp_sbus_glue = { - esp_read_reg, - esp_write_reg, - esp_dma_isintr, - esp_dma_reset, - esp_dma_intr, - esp_dma_setup, - esp_dma_go, - esp_dma_stop, - esp_dma_isactive, -}; - -static int -esp_probe(device_t dev) -{ - const char *name; - - name = ofw_bus_get_name(dev); - if (strcmp("SUNW,fas", name) == 0) { - device_set_desc(dev, "Sun FAS366 Fast-Wide SCSI"); - return (BUS_PROBE_DEFAULT); - } else if (strcmp("esp", name) == 0) { - device_set_desc(dev, "Sun ESP SCSI/Sun FAS Fast-SCSI"); - return (BUS_PROBE_DEFAULT); - } - - return (ENXIO); -} - -static int -esp_sbus_attach(device_t dev) -{ - struct esp_softc *esc; - struct ncr53c9x_softc *sc; - struct lsi64854_softc *lsc; - device_t *children; - int error, i, nchildren; - - esc = device_get_softc(dev); - sc = &esc->sc_ncr53c9x; - - lsc = NULL; - esc->sc_dev = dev; - sc->sc_freq = sbus_get_clockfreq(dev); - - if (strcmp(ofw_bus_get_name(dev), "SUNW,fas") == 0) { - /* - * Allocate space for DMA, in SUNW,fas there are no - * separate DMA devices. - */ - lsc = malloc(sizeof (struct lsi64854_softc), M_DEVBUF, - M_NOWAIT | M_ZERO); - if (lsc == NULL) { - device_printf(dev, "out of memory (lsi64854_softc)\n"); - return (ENOMEM); - } - esc->sc_dma = lsc; - - /* - * SUNW,fas have 2 register spaces: DMA (lsi64854) and - * SCSI core (ncr53c9x). - */ - - /* Allocate DMA registers. */ - i = 0; - if ((lsc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &i, RF_ACTIVE)) == NULL) { - device_printf(dev, "cannot allocate DMA registers\n"); - error = ENXIO; - goto fail_sbus_lsc; - } - - /* Create a parent DMA tag based on this bus. */ - error = bus_dma_tag_create( - bus_get_dma_tag(dev), /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - BUS_SPACE_MAXSIZE, /* maxsize */ - BUS_SPACE_UNRESTRICTED, /* nsegments */ - BUS_SPACE_MAXSIZE, /* maxsegsize */ - 0, /* flags */ - NULL, NULL, /* no locking */ - &lsc->sc_parent_dmat); - if (error != 0) { - device_printf(dev, "cannot allocate parent DMA tag\n"); - goto fail_sbus_lres; - } - - i = sbus_get_burstsz(dev); - -#ifdef ESP_SBUS_DEBUG - printf("%s: burst 0x%x\n", __func__, i); -#endif - - lsc->sc_burst = (i & SBUS_BURST_32) ? 32 : - (i & SBUS_BURST_16) ? 16 : 0; - - lsc->sc_channel = L64854_CHANNEL_SCSI; - lsc->sc_client = sc; - lsc->sc_dev = dev; - - /* - * Allocate SCSI core registers. - */ - i = 1; - if ((esc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &i, RF_ACTIVE)) == NULL) { - device_printf(dev, - "cannot allocate SCSI core registers\n"); - error = ENXIO; - goto fail_sbus_lpdma; - } - } else { - /* - * Search accompanying DMA engine. It should have been - * already attached otherwise there isn't much we can do. - */ - if (device_get_children(device_get_parent(dev), &children, - &nchildren) != 0) { - device_printf(dev, "cannot determine siblings\n"); - return (ENXIO); - } - for (i = 0; i < nchildren; i++) { - if (device_is_attached(children[i]) && - sbus_get_slot(children[i]) == - sbus_get_slot(dev) && - strcmp(ofw_bus_get_name(children[i]), - "dma") == 0) { - /* XXX hackery */ - esc->sc_dma = (struct lsi64854_softc *) - device_get_softc(children[i]); - break; - } - } - free(children, M_TEMP); - if (esc->sc_dma == NULL) { - device_printf(dev, "cannot find DMA engine\n"); - return (ENXIO); - } - esc->sc_dma->sc_client = sc; - - /* - * Allocate SCSI core registers. - */ - i = 0; - if ((esc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &i, RF_ACTIVE)) == NULL) { - device_printf(dev, - "cannot allocate SCSI core registers\n"); - return (ENXIO); - } - } - - error = espattach(esc, &esp_sbus_glue); - if (error != 0) { - device_printf(dev, "espattach failed\n"); - goto fail_sbus_eres; - } - - return (0); - - fail_sbus_eres: - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(esc->sc_res), - esc->sc_res); - if (strcmp(ofw_bus_get_name(dev), "SUNW,fas") != 0) - return (error); - fail_sbus_lpdma: - bus_dma_tag_destroy(lsc->sc_parent_dmat); - fail_sbus_lres: - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(lsc->sc_res), - lsc->sc_res); - fail_sbus_lsc: - free(lsc, M_DEVBUF); - return (error); -} - -static int -esp_sbus_detach(device_t dev) -{ - struct esp_softc *esc; - struct lsi64854_softc *lsc; - int error; - - esc = device_get_softc(dev); - lsc = esc->sc_dma; - - error = espdetach(esc); - if (error != 0) - return (error); - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(esc->sc_res), - esc->sc_res); - if (strcmp(ofw_bus_get_name(dev), "SUNW,fas") != 0) - return (0); - bus_dma_tag_destroy(lsc->sc_parent_dmat); - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(lsc->sc_res), - lsc->sc_res); - free(lsc, M_DEVBUF); - - return (0); -} - -static int -esp_dma_attach(device_t dev) -{ - struct esp_softc *esc; - struct ncr53c9x_softc *sc; - int error, i; - - esc = device_get_softc(dev); - sc = &esc->sc_ncr53c9x; - - esc->sc_dev = dev; - if (OF_getprop(ofw_bus_get_node(dev), "clock-frequency", - &sc->sc_freq, sizeof(sc->sc_freq)) == -1) { - printf("failed to query OFW for clock-frequency\n"); - return (ENXIO); - } - - /* XXX hackery */ - esc->sc_dma = (struct lsi64854_softc *) - device_get_softc(device_get_parent(dev)); - esc->sc_dma->sc_client = sc; - - /* - * Allocate SCSI core registers. - */ - i = 0; - if ((esc->sc_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &i, RF_ACTIVE)) == NULL) { - device_printf(dev, "cannot allocate SCSI core registers\n"); - return (ENXIO); - } - - error = espattach(esc, &esp_sbus_glue); - if (error != 0) { - device_printf(dev, "espattach failed\n"); - goto fail_dma_eres; - } - - return (0); - - fail_dma_eres: - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(esc->sc_res), - esc->sc_res); - return (error); -} - -static int -esp_dma_detach(device_t dev) -{ - struct esp_softc *esc; - int error; - - esc = device_get_softc(dev); - - error = espdetach(esc); - if (error != 0) - return (error); - bus_release_resource(dev, SYS_RES_MEMORY, rman_get_rid(esc->sc_res), - esc->sc_res); - - return (0); -} - -static int -esp_suspend(device_t dev) -{ - - return (ENXIO); -} - -static int -esp_resume(device_t dev) -{ - - return (ENXIO); -} - -static int -espattach(struct esp_softc *esc, const struct ncr53c9x_glue *gluep) -{ - struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; - unsigned int uid = 0; - int error, i; - - NCR_LOCK_INIT(sc); - - sc->sc_id = OF_getscsinitid(esc->sc_dev); - -#ifdef ESP_SBUS_DEBUG - device_printf(esc->sc_dev, "%s: sc_id %d, freq %d\n", - __func__, sc->sc_id, sc->sc_freq); -#endif - - /* - * The `ESC' DMA chip must be reset before we can access - * the ESP registers. - */ - if (esc->sc_dma->sc_rev == DMAREV_ESC) - DMA_RESET(esc->sc_dma); - - /* - * Set up glue for MI code early; we use some of it here. - */ - sc->sc_glue = gluep; - - /* gimme MHz */ - sc->sc_freq /= 1000000; - - /* - * XXX More of this should be in ncr53c9x_attach(), but - * XXX should we really poke around the chip that much in - * XXX the MI code? Think about this more... - */ - - /* - * Read the part-unique ID code of the SCSI chip. The contained - * value is only valid if all of the following conditions are met: - * - After power-up or chip reset. - * - Before any value is written to this register. - * - The NCRCFG2_FE bit is set. - * - A (NCRCMD_NOP | NCRCMD_DMA) command has been issued. - */ - NCRCMD(sc, NCRCMD_RSTCHIP); - NCRCMD(sc, NCRCMD_NOP); - sc->sc_cfg2 = NCRCFG2_FE; - NCR_WRITE_REG(sc, NCR_CFG2, sc->sc_cfg2); - NCRCMD(sc, NCRCMD_NOP | NCRCMD_DMA); - uid = NCR_READ_REG(sc, NCR_UID); - - /* - * It is necessary to try to load the 2nd config register here, - * to find out what rev the esp chip is, else the ncr53c9x_reset - * will not set up the defaults correctly. - */ - sc->sc_cfg1 = sc->sc_id | NCRCFG1_PARENB; - NCR_WRITE_REG(sc, NCR_CFG1, sc->sc_cfg1); - sc->sc_cfg2 = 0; - NCR_WRITE_REG(sc, NCR_CFG2, sc->sc_cfg2); - sc->sc_cfg2 = NCRCFG2_SCSI2 | NCRCFG2_RPE; - NCR_WRITE_REG(sc, NCR_CFG2, sc->sc_cfg2); - - if ((NCR_READ_REG(sc, NCR_CFG2) & ~NCRCFG2_RSVD) != - (NCRCFG2_SCSI2 | NCRCFG2_RPE)) - sc->sc_rev = NCR_VARIANT_ESP100; - else { - sc->sc_cfg2 = NCRCFG2_SCSI2; - NCR_WRITE_REG(sc, NCR_CFG2, sc->sc_cfg2); - sc->sc_cfg3 = 0; - NCR_WRITE_REG(sc, NCR_CFG3, sc->sc_cfg3); - sc->sc_cfg3 = (NCRCFG3_CDB | NCRCFG3_FCLK); - NCR_WRITE_REG(sc, NCR_CFG3, sc->sc_cfg3); - if (NCR_READ_REG(sc, NCR_CFG3) != - (NCRCFG3_CDB | NCRCFG3_FCLK)) - sc->sc_rev = NCR_VARIANT_ESP100A; - else { - /* NCRCFG2_FE enables > 64K transfers. */ - sc->sc_cfg2 |= NCRCFG2_FE; - sc->sc_cfg3 = 0; - NCR_WRITE_REG(sc, NCR_CFG3, sc->sc_cfg3); - if (sc->sc_freq <= 25) - sc->sc_rev = NCR_VARIANT_ESP200; - else { - switch ((uid & 0xf8) >> 3) { - case 0x00: - sc->sc_rev = NCR_VARIANT_FAS100A; - break; - - case 0x02: - if ((uid & 0x07) == 0x02) - sc->sc_rev = - NCR_VARIANT_FAS216; - else - sc->sc_rev = - NCR_VARIANT_FAS236; - break; - - case 0x0a: - sc->sc_rev = NCR_VARIANT_FAS366; - break; - - default: - /* - * We could just treat unknown chips - * as ESP200 but then we would most - * likely drive them out of specs. - */ - device_printf(esc->sc_dev, - "Unknown chip\n"); - error = ENXIO; - goto fail_lock; - } - } - } - } - -#ifdef ESP_SBUS_DEBUG - printf("%s: revision %d, uid 0x%x\n", __func__, sc->sc_rev, uid); -#endif - - /* - * This is the value used to start sync negotiations - * Note that the NCR register "SYNCTP" is programmed - * in "clocks per byte", and has a minimum value of 4. - * The SCSI period used in negotiation is one-fourth - * of the time (in nanoseconds) needed to transfer one byte. - * Since the chip's clock is given in MHz, we have the following - * formula: 4 * period = (1000 / freq) * 4 - */ - sc->sc_minsync = 1000 / sc->sc_freq; - - /* - * Except for some variants the maximum transfer size is 64k. - */ - sc->sc_maxxfer = 64 * 1024; - sc->sc_maxoffset = 15; - sc->sc_extended_geom = 1; - - /* - * Alas, we must now modify the value a bit, because it's - * only valid when we can switch on FASTCLK and FASTSCSI bits - * in the config register 3... - */ - switch (sc->sc_rev) { - case NCR_VARIANT_ESP100: - sc->sc_maxwidth = MSG_EXT_WDTR_BUS_8_BIT; - sc->sc_minsync = 0; /* No synch on old chip? */ - break; - - case NCR_VARIANT_ESP100A: - case NCR_VARIANT_ESP200: - sc->sc_maxwidth = MSG_EXT_WDTR_BUS_8_BIT; - /* Min clocks/byte is 5 */ - sc->sc_minsync = ncr53c9x_cpb2stp(sc, 5); - break; - - case NCR_VARIANT_FAS100A: - case NCR_VARIANT_FAS216: - case NCR_VARIANT_FAS236: - /* - * The onboard SCSI chips in Sun Ultra 1 are actually - * documented to be NCR53C9X which use NCRCFG3_FCLK and - * NCRCFG3_FSCSI. BSD/OS however probes these chips as - * FAS100A and uses NCRF9XCFG3_FCLK and NCRF9XCFG3_FSCSI - * instead which seems to be correct as otherwise sync - * negotiation just doesn't work. Using NCRF9XCFG3_FCLK - * and NCRF9XCFG3_FSCSI with these chips in fact also - * yields Fast-SCSI speed. - */ - sc->sc_features = NCR_F_FASTSCSI; - sc->sc_cfg3 = NCRF9XCFG3_FCLK; - sc->sc_cfg3_fscsi = NCRF9XCFG3_FSCSI; - sc->sc_maxwidth = MSG_EXT_WDTR_BUS_8_BIT; - sc->sc_maxxfer = 16 * 1024 * 1024; - break; - - case NCR_VARIANT_FAS366: - sc->sc_maxwidth = MSG_EXT_WDTR_BUS_16_BIT; - sc->sc_maxxfer = 16 * 1024 * 1024; - break; - } - - /* - * Given that we allocate resources based on sc->sc_maxxfer it doesn't - * make sense to supply a value higher than the maximum actually used. - */ - sc->sc_maxxfer = min(sc->sc_maxxfer, MAXPHYS); - - /* Attach the DMA engine. */ - error = lsi64854_attach(esc->sc_dma); - if (error != 0) { - device_printf(esc->sc_dev, "lsi64854_attach failed\n"); - goto fail_lock; - } - - /* Establish interrupt channel. */ - i = 0; - if ((esc->sc_irqres = bus_alloc_resource_any(esc->sc_dev, SYS_RES_IRQ, - &i, RF_SHAREABLE|RF_ACTIVE)) == NULL) { - device_printf(esc->sc_dev, "cannot allocate interrupt\n"); - goto fail_lsi; - } - if (bus_setup_intr(esc->sc_dev, esc->sc_irqres, - INTR_MPSAFE | INTR_TYPE_CAM, NULL, ncr53c9x_intr, sc, - &esc->sc_irq)) { - device_printf(esc->sc_dev, "cannot set up interrupt\n"); - error = ENXIO; - goto fail_ires; - } - - /* Turn on target selection using the `DMA' method. */ - if (sc->sc_rev != NCR_VARIANT_FAS366) - sc->sc_features |= NCR_F_DMASELECT; - - /* Do the common parts of attachment. */ - sc->sc_dev = esc->sc_dev; - error = ncr53c9x_attach(sc); - if (error != 0) { - device_printf(esc->sc_dev, "ncr53c9x_attach failed\n"); - goto fail_intr; - } - - return (0); - - fail_intr: - bus_teardown_intr(esc->sc_dev, esc->sc_irqres, esc->sc_irq); - fail_ires: - bus_release_resource(esc->sc_dev, SYS_RES_IRQ, - rman_get_rid(esc->sc_irqres), esc->sc_irqres); - fail_lsi: - lsi64854_detach(esc->sc_dma); - fail_lock: - NCR_LOCK_DESTROY(sc); - return (error); -} - -static int -espdetach(struct esp_softc *esc) -{ - struct ncr53c9x_softc *sc = &esc->sc_ncr53c9x; - int error; - - bus_teardown_intr(esc->sc_dev, esc->sc_irqres, esc->sc_irq); - error = ncr53c9x_detach(sc); - if (error != 0) - return (error); - error = lsi64854_detach(esc->sc_dma); - if (error != 0) - return (error); - NCR_LOCK_DESTROY(sc); - bus_release_resource(esc->sc_dev, SYS_RES_IRQ, - rman_get_rid(esc->sc_irqres), esc->sc_irqres); - - return (0); -} - -/* - * Glue functions - */ - -#ifdef ESP_SBUS_DEBUG -static int esp_sbus_debug = 0; - -static const struct { - const char *r_name; - int r_flag; -} const esp__read_regnames [] = { - { "TCL", 0}, /* 0/00 */ - { "TCM", 0}, /* 1/04 */ - { "FIFO", 0}, /* 2/08 */ - { "CMD", 0}, /* 3/0c */ - { "STAT", 0}, /* 4/10 */ - { "INTR", 0}, /* 5/14 */ - { "STEP", 0}, /* 6/18 */ - { "FFLAGS", 1}, /* 7/1c */ - { "CFG1", 1}, /* 8/20 */ - { "STAT2", 0}, /* 9/24 */ - { "CFG4", 1}, /* a/28 */ - { "CFG2", 1}, /* b/2c */ - { "CFG3", 1}, /* c/30 */ - { "-none", 1}, /* d/34 */ - { "TCH", 1}, /* e/38 */ - { "TCX", 1}, /* f/3c */ -}; - -static const const struct { - const char *r_name; - int r_flag; -} const esp__write_regnames[] = { - { "TCL", 1}, /* 0/00 */ - { "TCM", 1}, /* 1/04 */ - { "FIFO", 0}, /* 2/08 */ - { "CMD", 0}, /* 3/0c */ - { "SELID", 1}, /* 4/10 */ - { "TIMEOUT", 1}, /* 5/14 */ - { "SYNCTP", 1}, /* 6/18 */ - { "SYNCOFF", 1}, /* 7/1c */ - { "CFG1", 1}, /* 8/20 */ - { "CCF", 1}, /* 9/24 */ - { "TEST", 1}, /* a/28 */ - { "CFG2", 1}, /* b/2c */ - { "CFG3", 1}, /* c/30 */ - { "-none", 1}, /* d/34 */ - { "TCH", 1}, /* e/38 */ - { "TCX", 1}, /* f/3c */ -}; -#endif - -static uint8_t -esp_read_reg(struct ncr53c9x_softc *sc, int reg) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - uint8_t v; - - v = bus_read_1(esc->sc_res, reg * 4); - -#ifdef ESP_SBUS_DEBUG - if (esp_sbus_debug && (reg < 0x10) && esp__read_regnames[reg].r_flag) - printf("RD:%x <%s> %x\n", reg * 4, ((unsigned)reg < 0x10) ? - esp__read_regnames[reg].r_name : "<***>", v); -#endif - - return (v); -} - -static void -esp_write_reg(struct ncr53c9x_softc *sc, int reg, uint8_t v) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - -#ifdef ESP_SBUS_DEBUG - if (esp_sbus_debug && (reg < 0x10) && esp__write_regnames[reg].r_flag) - printf("WR:%x <%s> %x\n", reg * 4, ((unsigned)reg < 0x10) ? - esp__write_regnames[reg].r_name : "<***>", v); -#endif - - bus_write_1(esc->sc_res, reg * 4, v); -} - -static int -esp_dma_isintr(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - return (DMA_ISINTR(esc->sc_dma)); -} - -static void -esp_dma_reset(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - DMA_RESET(esc->sc_dma); -} - -static int -esp_dma_intr(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - return (DMA_INTR(esc->sc_dma)); -} - -static int -esp_dma_setup(struct ncr53c9x_softc *sc, void **addr, size_t *len, - int datain, size_t *dmasize) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - return (DMA_SETUP(esc->sc_dma, addr, len, datain, dmasize)); -} - -static void -esp_dma_go(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - DMA_GO(esc->sc_dma); -} - -static void -esp_dma_stop(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - L64854_SCSR(esc->sc_dma, L64854_GCSR(esc->sc_dma) & ~D_EN_DMA); -} - -static int -esp_dma_isactive(struct ncr53c9x_softc *sc) -{ - struct esp_softc *esc = (struct esp_softc *)sc; - - return (DMA_ISACTIVE(esc->sc_dma)); -} |