/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "%Z%%M% %I% %E% SMI" /* * Floppy Disk Controller Driver * * for the standard PC architecture using the Intel 8272A fdc. * Note that motor control and drive select use a latch external * to the fdc. * * This driver is EISA capable, and uses DMA buffer chaining if available. * If this driver is attached to the ISA bus nexus (or if the EISA bus driver * does not support DMA buffer chaining), then the bus driver must ensure * that dma mapping (breakup) and dma engine requests are properly degraded. */ /* * hack for bugid 1160621: * workaround compiler optimization bug by turning on DEBUG */ #ifndef DEBUG #define DEBUG 1 #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * bss (uninitialized data) */ static void *fdc_state_head; /* opaque handle top of state structs */ static ddi_dma_attr_t fdc_dma_attr; static ddi_device_acc_attr_t fdc_accattr = {DDI_DEVICE_ATTR_V0, DDI_STRUCTURE_LE_ACC, DDI_STRICTORDER_ACC}; /* * Local static data */ #define OURUN_TRIES 12 static uchar_t rwretry = 4; static uchar_t skretry = 3; static uchar_t configurecmd[4] = {FO_CNFG, 0, 0x0F, 0}; static uchar_t recalcmd[2] = {FO_RECAL, 0}; static uchar_t senseintcmd = FO_SINT; /* * error handling * * for debugging, set rwretry and skretry = 1 * set fcerrlevel to 1 * set fcerrmask to 224 or 644 * * after debug, set rwretry to 4, skretry to 3, and fcerrlevel to 5 * set fcerrmask to FDEM_ALL * or remove the define DEBUG */ static uint_t fcerrmask = FDEM_ALL; static int fcerrlevel = 6; #define KIOIP KSTAT_INTR_PTR(fcp->c_intrstat) static xlate_tbl_t drate_mfm[] = { { 250, 2}, { 300, 1}, { 417, 0}, { 500, 0}, { 1000, 3}, { 0, 0} }; static xlate_tbl_t sector_size[] = { { 256, 1}, { 512, 2}, { 1024, 3}, { 0, 2} }; static xlate_tbl_t motor_onbits[] = { { 0, 0x10}, { 1, 0x20}, { 2, 0x40}, { 3, 0x80}, { 0, 0x80} }; static xlate_tbl_t step_rate[] = { { 10, 0xF0}, /* for 500K data rate */ { 20, 0xE0}, { 30, 0xD0}, { 40, 0xC0}, { 50, 0xB0}, { 60, 0xA0}, { 70, 0x90}, { 80, 0x80}, { 90, 0x70}, { 100, 0x60}, { 110, 0x50}, { 120, 0x40}, { 130, 0x30}, { 140, 0x20}, { 150, 0x10}, { 160, 0x00}, { 0, 0x00} }; #ifdef notdef static xlate_tbl_t head_unld[] = { { 16, 0x1}, /* for 500K data rate */ { 32, 0x2}, { 48, 0x3}, { 64, 0x4}, { 80, 0x5}, { 96, 0x6}, { 112, 0x7}, { 128, 0x8}, { 144, 0x9}, { 160, 0xA}, { 176, 0xB}, { 192, 0xC}, { 208, 0xD}, { 224, 0xE}, { 240, 0xF}, { 256, 0x0}, { 0, 0x0} }; #endif static struct fdcmdinfo { char *cmdname; /* command name */ uchar_t ncmdbytes; /* number of bytes of command */ uchar_t nrsltbytes; /* number of bytes in result */ uchar_t cmdtype; /* characteristics */ } fdcmds[] = { "", 0, 0, 0, /* - */ "", 0, 0, 0, /* - */ "read_track", 9, 7, 1, /* 2 */ "specify", 3, 0, 3, /* 3 */ "sense_drv_status", 2, 1, 3, /* 4 */ "write", 9, 7, 1, /* 5 */ "read", 9, 7, 1, /* 6 */ "recalibrate", 2, 0, 2, /* 7 */ "sense_int_status", 1, 2, 3, /* 8 */ "write_del", 9, 7, 1, /* 9 */ "read_id", 2, 7, 2, /* A */ "", 0, 0, 0, /* - */ "read_del", 9, 7, 1, /* C */ "format_track", 10, 7, 1, /* D */ "dump_reg", 1, 10, 4, /* E */ "seek", 3, 0, 2, /* F */ "version", 1, 1, 3, /* 10 */ "", 0, 0, 0, /* - */ "perp_mode", 2, 0, 3, /* 12 */ "configure", 4, 0, 4, /* 13 */ /* relative seek */ }; static int fdc_bus_ctl(dev_info_t *, dev_info_t *, ddi_ctl_enum_t, void *, void *); static int get_ioaddr(dev_info_t *dip, int *ioaddr); static int get_unit(dev_info_t *dip, int *cntrl_num); struct bus_ops fdc_bus_ops = { BUSO_REV, nullbusmap, 0, /* ddi_intrspec_t (*bus_get_intrspec)(); */ 0, /* int (*bus_add_intrspec)(); */ 0, /* void (*bus_remove_intrspec)(); */ i_ddi_map_fault, ddi_dma_map, ddi_dma_allochdl, ddi_dma_freehdl, ddi_dma_bindhdl, ddi_dma_unbindhdl, ddi_dma_flush, ddi_dma_win, ddi_dma_mctl, fdc_bus_ctl, ddi_bus_prop_op, }; static int fdc_getinfo(dev_info_t *, ddi_info_cmd_t, void *, void **); static int fdc_probe(dev_info_t *); static int fdc_attach(dev_info_t *, ddi_attach_cmd_t); static int fdc_detach(dev_info_t *, ddi_detach_cmd_t); static int fdc_enhance_probe(struct fdcntlr *fcp); struct dev_ops fdc_ops = { DEVO_REV, /* devo_rev, */ 0, /* refcnt */ fdc_getinfo, /* getinfo */ nulldev, /* identify */ fdc_probe, /* probe */ fdc_attach, /* attach */ fdc_detach, /* detach */ nodev, /* reset */ (struct cb_ops *)0, /* driver operations */ &fdc_bus_ops /* bus operations */ }; /* * This is the loadable module wrapper. */ #include extern struct mod_ops mod_driverops; static struct modldrv modldrv = { &mod_driverops, /* Type of module. This one is a driver */ "Floppy Controller %I%", /* Name of the module. */ &fdc_ops, /* Driver ops vector */ }; static struct modlinkage modlinkage = { MODREV_1, (void *)&modldrv, NULL }; int _init(void) { int retval; if ((retval = ddi_soft_state_init(&fdc_state_head, sizeof (struct fdcntlr) + NFDUN * sizeof (struct fcu_obj), 0)) != 0) return (retval); if ((retval = mod_install(&modlinkage)) != 0) ddi_soft_state_fini(&fdc_state_head); return (retval); } int _fini(void) { int retval; if ((retval = mod_remove(&modlinkage)) != 0) return (retval); ddi_soft_state_fini(&fdc_state_head); return (retval); } int _info(struct modinfo *modinfop) { return (mod_info(&modlinkage, modinfop)); } int fdc_start(struct fcu_obj *); int fdc_abort(struct fcu_obj *); int fdc_getcap(struct fcu_obj *, char *, int); int fdc_setcap(struct fcu_obj *, char *, int, int); int fdc_dkinfo(struct fcu_obj *, struct dk_cinfo *); int fdc_select(struct fcu_obj *, int, int); int fdgetchng(struct fcu_obj *, int); int fdresetchng(struct fcu_obj *, int); int fdrecalseek(struct fcu_obj *, int, int, int); int fdrw(struct fcu_obj *, int, int, int, int, int, caddr_t, uint_t); int fdtrkformat(struct fcu_obj *, int, int, int, int); int fdrawioctl(struct fcu_obj *, int, caddr_t); static struct fcobjops fdc_iops = { fdc_start, /* controller start */ fdc_abort, /* controller abort */ fdc_getcap, /* capability retrieval */ fdc_setcap, /* capability establishment */ fdc_dkinfo, /* get disk controller info */ fdc_select, /* select / deselect unit */ fdgetchng, /* get media change */ fdresetchng, /* reset media change */ fdrecalseek, /* recal / seek */ NULL, /* read /write request (UNUSED) */ fdrw, /* read /write sector */ fdtrkformat, /* format track */ fdrawioctl /* raw ioctl */ }; /* * Function prototypes */ void encode(xlate_tbl_t *tablep, int val, uchar_t *rcode); int decode(xlate_tbl_t *, int, int *); static int fdc_propinit1(struct fdcntlr *, int); static void fdc_propinit2(struct fdcntlr *, int); void fdcquiesce(struct fdcntlr *); int fdcsense_chng(struct fdcntlr *, int); int fdcsense_drv(struct fdcntlr *, int); int fdcsense_int(struct fdcntlr *, int *, int *); int fdcspecify(struct fdcntlr *, int, int, int); int fdcspdchange(struct fdcntlr *, struct fcu_obj *, int); static int fdc_exec(struct fdcntlr *, int, int); int fdcheckdisk(struct fdcntlr *, int); static uint_t fdc_intr(caddr_t arg); static void fdwatch(void *arg); static void fdmotort(void *arg); static int fdrecover(struct fdcntlr *); static int fdc_motorsm(struct fcu_obj *, int, int); static int fdc_statemach(struct fdcntlr *); int fdc_docmd(struct fdcntlr *, uchar_t *, uchar_t); int fdc_result(struct fdcntlr *, uchar_t *, uchar_t); /* ARGSUSED */ static int fdc_bus_ctl(dev_info_t *dip, dev_info_t *rdip, ddi_ctl_enum_t ctlop, void *arg, void *result) { struct fdcntlr *fcp; struct fcu_obj *fjp; FCERRPRINT(FDEP_L0, FDEM_ATTA, (CE_CONT, "fdc_bus_ctl: cmd= %x\n", ctlop)); if ((fcp = ddi_get_driver_private(dip)) == NULL) return (DDI_FAILURE); switch (ctlop) { case DDI_CTLOPS_REPORTDEV: cmn_err(CE_CONT, "?%s%d at %s%d\n", ddi_get_name(rdip), ddi_get_instance(rdip), ddi_get_name(dip), ddi_get_instance(dip)); FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_bus_ctl: report %s%d at %s%d", ddi_get_name(rdip), ddi_get_instance(rdip), ddi_get_name(dip), ddi_get_instance(dip))); return (DDI_SUCCESS); case DDI_CTLOPS_INITCHILD: { dev_info_t *udip = (dev_info_t *)arg; int cntlr; int len; int unit; char name[MAXNAMELEN]; FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_bus_ctl: init child 0x%p", (void*)udip)); cntlr = fcp->c_number; len = sizeof (unit); if (ddi_prop_op(DDI_DEV_T_ANY, udip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS, "unit", (caddr_t)&unit, &len) != DDI_PROP_SUCCESS || cntlr != FDCTLR(unit) || (fcp->c_unit[FDUNIT(unit)])->fj_dip) return (DDI_NOT_WELL_FORMED); (void) sprintf(name, "%d,%d", cntlr, FDUNIT(unit)); ddi_set_name_addr(udip, name); fjp = fcp->c_unit[FDUNIT(unit)]; fjp->fj_unit = unit; fjp->fj_dip = udip; fjp->fj_ops = &fdc_iops; fjp->fj_fdc = fcp; fjp->fj_iblock = &fcp->c_iblock; ddi_set_driver_private(udip, fjp); return (DDI_SUCCESS); } case DDI_CTLOPS_UNINITCHILD: { dev_info_t *udip = (dev_info_t *)arg; FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_bus_ctl: uninit child 0x%p", (void *)udip)); fjp = ddi_get_driver_private(udip); ddi_set_driver_private(udip, NULL); fjp->fj_dip = NULL; ddi_set_name_addr(udip, NULL); return (DDI_SUCCESS); } default: return (DDI_FAILURE); } } /* ARGSUSED */ static int fdc_getinfo(dev_info_t *dip, ddi_info_cmd_t cmd, void *arg, void **result) { struct fdcntlr *fcp; int rval; switch (cmd) { case DDI_INFO_DEVT2DEVINFO: if (fcp = ddi_get_soft_state(fdc_state_head, (dev_t)arg)) { *result = fcp->c_dip; rval = DDI_SUCCESS; break; } else { rval = DDI_FAILURE; break; } case DDI_INFO_DEVT2INSTANCE: *result = (void *)(uintptr_t)getminor((dev_t)arg); rval = DDI_SUCCESS; break; default: rval = DDI_FAILURE; } return (rval); } static int fdc_probe(dev_info_t *dip) { int debug[2]; int ioaddr; int len; uchar_t stat; len = sizeof (debug); if (ddi_prop_op(DDI_DEV_T_ANY, dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS, "debug", (caddr_t)debug, &len) == DDI_PROP_SUCCESS) { fcerrlevel = debug[0]; fcerrmask = (uint_t)debug[1]; } FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_probe: dip %p", (void*)dip)); if (get_ioaddr(dip, &ioaddr) != DDI_SUCCESS) return (DDI_PROBE_FAILURE); stat = inb(ioaddr + FCR_MSR); if ((stat & (MS_RQM | MS_DIO | MS_CB)) != MS_RQM && (stat & ~MS_DIO) != MS_CB) return (DDI_PROBE_FAILURE); return (DDI_PROBE_SUCCESS); } /* ARGSUSED */ static int fdc_attach(dev_info_t *dip, ddi_attach_cmd_t cmd) { struct fdcntlr *fcp; struct fcu_obj *fjp; int cntlr_num, ctlr, unit; int intr_set = 0; int len; char name[MAXNAMELEN]; FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_attach: dip %p", (void*)dip)); switch (cmd) { case DDI_ATTACH: if (ddi_getprop (DDI_DEV_T_ANY, dip, 0, "ignore-hardware-nodes", 0)) { len = sizeof (cntlr_num); if (ddi_prop_op(DDI_DEV_T_ANY, dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS, "unit", (caddr_t)&cntlr_num, &len) != DDI_PROP_SUCCESS) { FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_attach failed: dip %p", (void*)dip)); return (DDI_FAILURE); } } else { if (get_unit(dip, &cntlr_num) != DDI_SUCCESS) return (DDI_FAILURE); } ctlr = ddi_get_instance(dip); if (ddi_soft_state_zalloc(fdc_state_head, ctlr) != 0) return (DDI_FAILURE); fcp = ddi_get_soft_state(fdc_state_head, ctlr); for (unit = 0, fjp = (struct fcu_obj *)(fcp+1); unit < NFDUN; unit++) { fcp->c_unit[unit] = fjp++; } fcp->c_dip = dip; if (fdc_propinit1(fcp, cntlr_num) != DDI_SUCCESS) goto no_attach; /* get iblock cookie to initialize mutex used in the ISR */ if (ddi_get_iblock_cookie(dip, (uint_t)0, &fcp->c_iblock) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdc_attach: cannot get iblock cookie"); goto no_attach; } mutex_init(&fcp->c_lock, NULL, MUTEX_DRIVER, fcp->c_iblock); intr_set = 1; /* setup interrupt handler */ if (ddi_add_intr(dip, (uint_t)0, NULL, (ddi_idevice_cookie_t *)0, fdc_intr, (caddr_t)fcp) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdc: cannot add intr\n"); goto no_attach; } intr_set++; /* * acquire the DMA channel * this assumes that the chnl is not shared; else allocate * and free the chnl with each fdc request */ if (ddi_dmae_alloc(dip, fcp->c_dmachan, DDI_DMA_DONTWAIT, NULL) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdc: cannot acquire dma%d\n", fcp->c_dmachan); goto no_attach; } (void) ddi_dmae_getattr(dip, &fdc_dma_attr); fdc_dma_attr.dma_attr_align = MMU_PAGESIZE; mutex_init(&fcp->c_dorlock, NULL, MUTEX_DRIVER, fcp->c_iblock); cv_init(&fcp->c_iocv, NULL, CV_DRIVER, fcp->c_iblock); sema_init(&fcp->c_selsem, 1, NULL, SEMA_DRIVER, NULL); (void) sprintf(name, "fdc%d", ctlr); fcp->c_intrstat = kstat_create("fdc", ctlr, name, "controller", KSTAT_TYPE_INTR, 1, KSTAT_FLAG_PERSISTENT); if (fcp->c_intrstat) { kstat_install(fcp->c_intrstat); } ddi_set_driver_private(dip, fcp); /* * reset the controller */ sema_p(&fcp->c_selsem); mutex_enter(&fcp->c_lock); fcp->c_csb.csb_xstate = FXS_RESET; fcp->c_flags |= FCFLG_WAITING; fdcquiesce(fcp); /* first test for mode == Model 30 */ fcp->c_mode = (inb(fcp->c_regbase + FCR_SRB) & 0x1c) ? FDCMODE_AT : FDCMODE_30; while (fcp->c_flags & FCFLG_WAITING) { cv_wait(&fcp->c_iocv, &fcp->c_lock); } mutex_exit(&fcp->c_lock); sema_v(&fcp->c_selsem); fdc_propinit2(fcp, cntlr_num); ddi_report_dev(dip); return (DDI_SUCCESS); case DDI_RESUME: return (DDI_SUCCESS); /* break; */ default: return (DDI_FAILURE); } no_attach: if (intr_set) { if (intr_set > 1) ddi_remove_intr(dip, 0, fcp->c_iblock); mutex_destroy(&fcp->c_lock); } ddi_soft_state_free(fdc_state_head, cntlr_num); return (DDI_FAILURE); } static int fdc_propinit1(struct fdcntlr *fcp, int cntlr) { dev_info_t *dip; int len; int value; dip = fcp->c_dip; len = sizeof (value); if (get_ioaddr(dip, &value) != DDI_SUCCESS) return (DDI_FAILURE); fcp->c_regbase = (ushort_t)value; if (ddi_prop_op(DDI_DEV_T_ANY, dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS, "dma-channels", (caddr_t)&value, &len) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "fdc_attach: Error, could not find a dma channel"); return (DDI_FAILURE); } fcp->c_dmachan = (ushort_t)value; fcp->c_number = cntlr; return (DDI_SUCCESS); } /* ARGSUSED */ static void fdc_propinit2(struct fdcntlr *fcp, int cntlr) { dev_info_t *dip; int ccr; int len; int value; dip = fcp->c_dip; len = sizeof (value); if (ddi_prop_op(DDI_DEV_T_ANY, dip, PROP_LEN_AND_VAL_BUF, DDI_PROP_DONTPASS, "chip", (caddr_t)&value, &len) == DDI_PROP_SUCCESS) fcp->c_chip = value; else { static uchar_t perpindcmd[2] = {FO_PERP, 0}; static uchar_t versioncmd = FO_VRSN; uchar_t result; fcp->c_chip = i8272A; (void) fdc_docmd(fcp, &versioncmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ if (!fdc_result(fcp, &result, 1) && result == 0x90) { /* * try a perpendicular_mode cmd to ensure * that we really have an enhanced controller */ if (fdc_docmd(fcp, perpindcmd, 2) || fdc_docmd(fcp, configurecmd, 4)) /* * perpindicular_mode will be rejected by * older controllers; make sure we don't hang. */ (void) fdc_result(fcp, &result, 1); /* * Ignored return. If failed, warning was * issued by fdc_result. */ else /* enhanced type controller */ if ((fcp->c_chip = fdc_enhance_probe(fcp)) == 0) /* default enhanced cntlr */ fcp->c_chip = i82077; } (void) ddi_prop_update_int(DDI_DEV_T_NONE, dip, "chip", fcp->c_chip); /* * Ignoring return value because, for passed arguments, only * DDI_SUCCESS is returned. */ } if (fcp->c_chip >= i82077 && fcp->c_mode == FDCMODE_30 && (inb(fcp->c_regbase + FCR_DIR) & 0x70) == 0) for (ccr = 0; ccr <= (FCC_NOPREC | FCC_DRATE); ccr++) { /* * run through all the combinations of NOPREC and * datarate selection, and see if they show up in the * Model 30 DIR */ outb(fcp->c_regbase + FCR_CCR, ccr); drv_usecwait(5); if ((inb(fcp->c_regbase + FCR_DIR) & (FCC_NOPREC | FCC_DRATE)) != ccr) { fcp->c_mode = FDCMODE_AT; break; } } else fcp->c_mode = FDCMODE_AT; outb(fcp->c_regbase + FCR_CCR, 0); } /* ARGSUSED */ static int fdc_enhance_probe(struct fdcntlr *fcp) { static uchar_t nsccmd = FO_NSC; uint_t ddic; int retcode = 0; uchar_t result; uchar_t save; /* * Try to identify the enhanced floppy controller. * This is required so that we can program the DENSEL output to * control 3D mode (1.0 MB, 1.6 MB and 2.0 MB unformatted capacity, * 720 KB, 1.2 MB, and 1.44 MB formatted capacity) 3.5" dual-speed * floppy drives. Refer to bugid 1195155. */ (void) fdc_docmd(fcp, &nsccmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ if (!fdc_result(fcp, &result, 1) && result != S0_IVCMD) { /* * only enhanced National Semi PC8477 core * should respond to this command */ if ((result & 0xf0) == 0x70) { /* low 4 bits may change */ fcp->c_flags |= FCFLG_3DMODE; retcode = PC87322; } else cmn_err(CE_CONT, "?fdc: unidentified, enhanced, National Semiconductor cntlr %x\n", result); } else { save = inb(fcp->c_regbase + FCR_SRA); do { /* probe for motherboard version of SMC cntlr */ /* try to enable configuration mode */ ddic = ddi_enter_critical(); outb(fcp->c_regbase + FCR_SRA, FSA_ENA5); outb(fcp->c_regbase + FCR_SRA, FSA_ENA5); ddi_exit_critical(ddic); outb(fcp->c_regbase + FCR_SRA, 0x0F); if (inb(fcp->c_regbase + FCR_SRB) != 0x00) /* always expect 0 from config reg F */ break; outb(fcp->c_regbase + FCR_SRA, 0x0D); if (inb(fcp->c_regbase + FCR_SRB) != 0x65) /* expect 0x65 from config reg D */ break; outb(fcp->c_regbase + FCR_SRA, 0x0E); result = inb(fcp->c_regbase + FCR_SRB); if (result != 0x02) { /* expect revision level 2 from config reg E */ cmn_err(CE_CONT, "?fdc: unidentified, enhanced, SMC cntlr revision %x\n", result); /* break; */ } fcp->c_flags |= FCFLG_3DMODE; retcode = FDC37C665; } while (retcode == 0); outb(fcp->c_regbase + FCR_SRA, FSA_DISB); while (retcode == 0) { /* probe for adapter version of SMC cntlr */ ddic = ddi_enter_critical(); outb(fcp->c_regbase + FCR_SRA, FSA_ENA6); outb(fcp->c_regbase + FCR_SRA, FSA_ENA6); ddi_exit_critical(ddic); outb(fcp->c_regbase + FCR_SRA, 0x0F); if (inb(fcp->c_regbase + FCR_SRB) != 0x00) /* always expect 0 from config reg F */ break; outb(fcp->c_regbase + FCR_SRA, 0x0D); if (inb(fcp->c_regbase + FCR_SRB) != 0x66) /* expect 0x66 from config reg D */ break; outb(fcp->c_regbase + FCR_SRA, 0x0E); result = inb(fcp->c_regbase + FCR_SRB); if (result != 0x02) { /* expect revision level 2 from config reg E */ cmn_err(CE_CONT, "?fdc: unidentified, enhanced, SMC cntlr revision %x\n", result); /* break; */ } fcp->c_flags |= FCFLG_3DMODE; retcode = FDC37C666; } outb(fcp->c_regbase + FCR_SRA, FSA_DISB); drv_usecwait(10); outb(fcp->c_regbase + FCR_SRA, save); } return (retcode); } /* ARGSUSED */ static int fdc_detach(dev_info_t *dip, ddi_detach_cmd_t cmd) { struct fdcntlr *fcp; struct fcu_obj *fjp; int unit; int rval = 0; FCERRPRINT(FDEP_L3, FDEM_ATTA, (CE_WARN, "fdc_detach: dip %p", (void*)dip)); fcp = ddi_get_driver_private(dip); switch (cmd) { case DDI_DETACH: for (unit = 0; unit < NFDUN; unit++) if ((fcp->c_unit[unit])->fj_dip) { rval = EBUSY; break; } kstat_delete(fcp->c_intrstat); fcp->c_intrstat = NULL; ddi_remove_intr(fcp->c_dip, 0, fcp->c_iblock); if (ddi_dmae_release(fcp->c_dip, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdc_detach: dma release failed, " "dip %p, dmachan %x\n", (void*)fcp->c_dip, fcp->c_dmachan); ddi_prop_remove_all(fcp->c_dip); ddi_set_driver_private(fcp->c_dip, NULL); mutex_destroy(&fcp->c_lock); mutex_destroy(&fcp->c_dorlock); cv_destroy(&fcp->c_iocv); sema_destroy(&fcp->c_selsem); ddi_soft_state_free(fdc_state_head, ddi_get_instance(dip)); break; case DDI_SUSPEND: /* * Following code causes the fdc (floppy controller) * to suspend as long as there are no floppy drives * attached to it. * At present the floppy driver does not support * SUSPEND/RESUME. * * Check if any FD units are attached * * For now, SUSPEND/RESUME is not supported * if a floppy drive is present. * So if any FD unit is attached return DDI_FAILURE */ for (unit = 0; unit < NFDUN; unit++) { fjp = fcp->c_unit[unit]; if (fjp->fj_flags & FUNIT_DRVATCH) { cmn_err(CE_WARN, "fdc_detach: fd attached, failing SUSPEND"); return (DDI_FAILURE); } } cmn_err(CE_NOTE, "fdc_detach: SUSPEND fdc"); rval = DDI_SUCCESS; break; default: rval = EINVAL; break; } return (rval); } /* ARGSUSED */ int fdc_start(struct fcu_obj *fjp) { return (ENOSYS); } int fdc_abort(struct fcu_obj *fjp) { struct fdcntlr *fcp = fjp->fj_fdc; int unit = fjp->fj_unit & 3; FCERRPRINT(FDEP_L3, FDEM_RESE, (CE_WARN, "fdc_abort")); if (fcp->c_curunit == unit) { mutex_enter(&fcp->c_lock); if (fcp->c_flags & FCFLG_WAITING) { /* * this can cause data corruption ! */ fdcquiesce(fcp); fcp->c_csb.csb_xstate = FXS_RESET; fcp->c_flags |= FCFLG_TIMEOUT; if (ddi_dmae_stop(fcp->c_dip, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdc_detach: dma release failed, " "dip %p, dmachan %x\n", (void*)fcp->c_dip, fcp->c_dmachan); } mutex_exit(&fcp->c_lock); drv_usecwait(500); return (DDI_SUCCESS); } return (DDI_FAILURE); } /* ARGSUSED */ int fdc_getcap(struct fcu_obj *fjp, char *a, int i) { return (ENOSYS); } /* ARGSUSED */ int fdc_setcap(struct fcu_obj *fjp, char *a, int i, int j) { return (ENOSYS); } int fdc_dkinfo(struct fcu_obj *fjp, struct dk_cinfo *dcp) { struct fdcntlr *fcp = fjp->fj_fdc; (void) strncpy((char *)&dcp->dki_cname, ddi_get_name(fcp->c_dip), DK_DEVLEN); dcp->dki_ctype = DKC_UNKNOWN; /* no code for generic PC/AT fdc */ dcp->dki_flags = DKI_FMTTRK; dcp->dki_addr = fcp->c_regbase; dcp->dki_space = 0; dcp->dki_prio = fcp->c_intprio; dcp->dki_vec = fcp->c_intvec; (void) strncpy((char *)&dcp->dki_dname, ddi_driver_name(fjp->fj_dip), DK_DEVLEN); dcp->dki_slave = fjp->fj_unit & 3; dcp->dki_maxtransfer = maxphys / DEV_BSIZE; return (DDI_SUCCESS); } /* * on=> non-zero = select, 0 = de-select */ /* ARGSUSED */ int fdc_select(struct fcu_obj *fjp, int funit, int on) { struct fdcntlr *fcp = fjp->fj_fdc; int unit = funit & 3; if (on) { /* possess controller */ sema_p(&fcp->c_selsem); FCERRPRINT(FDEP_L2, FDEM_DSEL, (CE_NOTE, "fdc_select unit %d: on", funit)); if (fcp->c_curunit != unit || !(fjp->fj_flags & FUNIT_CHAROK)) { fcp->c_curunit = unit; fjp->fj_flags |= FUNIT_CHAROK; if (fdcspecify(fcp, fjp->fj_chars->fdc_transfer_rate, fjp->fj_drive->fdd_steprate, 40)) cmn_err(CE_WARN, "fdc_select: controller setup rejected " "fdcntrl %p transfer rate %x step rate %x" " head load time 40\n", (void*)fcp, fjp->fj_chars->fdc_transfer_rate, fjp->fj_drive->fdd_steprate); } mutex_enter(&fcp->c_dorlock); /* make sure drive is not selected in case we change speed */ fcp->c_digout = (fcp->c_digout & ~FD_DRSEL) | (~unit & FD_DRSEL); outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); (void) fdc_motorsm(fjp, FMI_STARTCMD, fjp->fj_drive->fdd_motoron); /* * Return value ignored - fdcmotort deals with failure. */ if (fdcspdchange(fcp, fjp, fjp->fj_attr->fda_rotatespd)) { /* 3D drive requires 500 ms for speed change */ (void) fdc_motorsm(fjp, FMI_RSTARTCMD, 5); /* * Return value ignored - fdcmotort deals with failure. */ } fcp->c_digout = (fcp->c_digout & ~FD_DRSEL) | (unit & FD_DRSEL); outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); mutex_exit(&fcp->c_dorlock); fcp->c_csb.csb_drive = (uchar_t)unit; } else { FCERRPRINT(FDEP_L2, FDEM_DSEL, (CE_NOTE, "fdc_select unit %d: off", funit)); mutex_enter(&fcp->c_dorlock); fcp->c_digout |= FD_DRSEL; outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); (void) fdc_motorsm(fjp, FMI_IDLECMD, fjp->fj_drive->fdd_motoroff); /* * Return value ignored - fdcmotort deals with failure. */ mutex_exit(&fcp->c_dorlock); /* give up controller */ sema_v(&fcp->c_selsem); } return (0); } int fdgetchng(struct fcu_obj *fjp, int funit) { if (fdcsense_drv(fjp->fj_fdc, funit & 3)) cmn_err(CE_WARN, "fdgetchng: write protect check failed\n"); return (fdcsense_chng(fjp->fj_fdc, funit & 3)); } int fdresetchng(struct fcu_obj *fjp, int funit) { struct fdcntlr *fcp = fjp->fj_fdc; int unit = funit & 3; int newcyl; /* where to seek for reset of DSKCHG */ FCERRPRINT(FDEP_L2, FDEM_CHEK, (CE_NOTE, "fdmediachng unit %d", funit)); if (fcp->c_curpcyl[unit]) newcyl = fcp->c_curpcyl[unit] - 1; else newcyl = 1; return (fdrecalseek(fjp, funit, newcyl, 0)); } /* * fdrecalseek */ int fdrecalseek(struct fcu_obj *fjp, int funit, int arg, int execflg) { struct fdcntlr *fcp = fjp->fj_fdc; struct fdcsb *csb; int unit = funit & 3; int rval; FCERRPRINT(FDEP_L2, FDEM_RECA, (CE_NOTE, "fdrecalseek unit %d to %d", funit, arg)); csb = &fcp->c_csb; csb->csb_cmd[1] = (uchar_t)unit; if (arg < 0) { /* is recal... */ *csb->csb_cmd = FO_RECAL; csb->csb_ncmds = 2; csb->csb_timer = 28; } else { *csb->csb_cmd = FO_SEEK; csb->csb_cmd[2] = (uchar_t)arg; csb->csb_ncmds = 3; csb->csb_timer = 10; } csb->csb_nrslts = 2; /* 2 for SENSE INTERRUPTS */ csb->csb_opflags = CSB_OFINRPT; csb->csb_maxretry = skretry; csb->csb_dmahandle = NULL; csb->csb_handle_bound = 0; csb->csb_dmacookiecnt = 0; csb->csb_dmacurrcookie = 0; csb->csb_dmawincnt = 0; csb->csb_dmacurrwin = 0; /* send cmd off to fdc_exec */ if (rval = fdc_exec(fcp, 1, execflg)) goto out; if (!(*csb->csb_rslt & S0_SEKEND) || (*csb->csb_rslt & S0_ICMASK) || ((*csb->csb_rslt & S0_ECHK) && arg < 0) || csb->csb_cmdstat) rval = ENODEV; if (fdcsense_drv(fcp, unit)) cmn_err(CE_WARN, "fdgetchng: write protect check failed\n"); out: return (rval); } /* * fdrw- used only for read/writing sectors into/from kernel buffers. */ int fdrw(struct fcu_obj *fjp, int funit, int rw, int cyl, int head, int sector, caddr_t bufp, uint_t len) { struct fdcntlr *fcp = fjp->fj_fdc; struct fdcsb *csb; uint_t dmar_flags = 0; int unit = funit & 3; int rval; ddi_acc_handle_t mem_handle = NULL; caddr_t aligned_buf; size_t real_size; FCERRPRINT(FDEP_L1, FDEM_RW, (CE_CONT, "fdrw unit %d\n", funit)); csb = &fcp->c_csb; if (rw) { dmar_flags = DDI_DMA_READ; csb->csb_opflags = CSB_OFDMARD | CSB_OFINRPT; *csb->csb_cmd = FO_MT | FO_MFM | FO_SK | FO_RDDAT; } else { /* write */ dmar_flags = DDI_DMA_WRITE; csb->csb_opflags = CSB_OFDMAWT | CSB_OFINRPT; *csb->csb_cmd = FO_MT | FO_MFM | FO_WRDAT; } csb->csb_cmd[1] = (uchar_t)(unit | ((head & 0x1) << 2)); csb->csb_cmd[2] = (uchar_t)cyl; csb->csb_cmd[3] = (uchar_t)head; csb->csb_cmd[4] = (uchar_t)sector; encode(sector_size, fjp->fj_chars->fdc_sec_size, &csb->csb_cmd[5]); csb->csb_cmd[6] = (uchar_t)max(fjp->fj_chars->fdc_secptrack, sector); csb->csb_cmd[7] = fjp->fj_attr->fda_gapl; csb->csb_cmd[8] = 0xFF; csb->csb_ncmds = 9; csb->csb_nrslts = 7; csb->csb_timer = 36; if (rw == FDRDONE) csb->csb_maxretry = 1; else csb->csb_maxretry = rwretry; csb->csb_dmahandle = NULL; csb->csb_handle_bound = 0; csb->csb_dmacookiecnt = 0; csb->csb_dmacurrcookie = 0; csb->csb_dmawincnt = 0; csb->csb_dmacurrwin = 0; dmar_flags |= (DDI_DMA_STREAMING | DDI_DMA_PARTIAL); if (ddi_dma_alloc_handle(fcp->c_dip, &fdc_dma_attr, DDI_DMA_SLEEP, 0, &csb->csb_dmahandle) != DDI_SUCCESS) { rval = EINVAL; goto out; } /* * allocate a page aligned buffer to dma to/from. This way we can * ensure the cookie is a whole multiple of granularity and avoids * any alignment issues. */ rval = ddi_dma_mem_alloc(csb->csb_dmahandle, len, &fdc_accattr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &aligned_buf, &real_size, &mem_handle); if (rval != DDI_SUCCESS) { rval = EINVAL; goto out; } if (dmar_flags & DDI_DMA_WRITE) { bcopy(bufp, aligned_buf, len); } rval = ddi_dma_addr_bind_handle(csb->csb_dmahandle, NULL, aligned_buf, len, dmar_flags, DDI_DMA_SLEEP, 0, &csb->csb_dmacookie, &csb->csb_dmacookiecnt); if (rval == DDI_DMA_MAPPED) { csb->csb_dmawincnt = 1; csb->csb_handle_bound = 1; } else if (rval == DDI_DMA_PARTIAL_MAP) { csb->csb_handle_bound = 1; if (ddi_dma_numwin(csb->csb_dmahandle, &csb->csb_dmawincnt) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdrw: dma numwin failed\n"); rval = EINVAL; goto out; } } else { cmn_err(CE_WARN, "fdrw: dma addr bind handle failed, rval = %d\n", rval); rval = EINVAL; goto out; } rval = fdc_exec(fcp, 1, 1); if (dmar_flags & DDI_DMA_READ) { bcopy(aligned_buf, bufp, len); } out: if (csb->csb_dmahandle) { if (csb->csb_handle_bound) { if (ddi_dma_unbind_handle(csb->csb_dmahandle) != DDI_SUCCESS) cmn_err(CE_WARN, "fdrw: " "dma unbind handle failed\n"); csb->csb_handle_bound = 0; } if (mem_handle != NULL) { ddi_dma_mem_free(&mem_handle); } ddi_dma_free_handle(&csb->csb_dmahandle); csb->csb_dmahandle = NULL; } return (rval); } int fdtrkformat(struct fcu_obj *fjp, int funit, int cyl, int head, int filldata) { struct fdcntlr *fcp = fjp->fj_fdc; struct fdcsb *csb; int unit = funit & 3; int fmdatlen, lsector, lstart; int interleave, numsctr, offset, psector; uchar_t *dp; int rval; ddi_acc_handle_t mem_handle = NULL; caddr_t aligned_buf; size_t real_size; FCERRPRINT(FDEP_L2, FDEM_FORM, (CE_NOTE, "fdformattrk unit %d cyl=%d, hd=%d", funit, cyl, head)); csb = &fcp->c_csb; csb->csb_opflags = CSB_OFDMAWT | CSB_OFINRPT; *csb->csb_cmd = FO_FRMT | FO_MFM; csb->csb_cmd[1] = (head << 2) | unit; encode(sector_size, fjp->fj_chars->fdc_sec_size, &csb->csb_cmd[2]); csb->csb_cmd[3] = numsctr = fjp->fj_chars->fdc_secptrack; csb->csb_cmd[4] = fjp->fj_attr->fda_gapf; csb->csb_cmd[5] = (uchar_t)filldata; csb->csb_npcyl = (uchar_t)(cyl * fjp->fj_chars->fdc_steps); csb->csb_dmahandle = NULL; csb->csb_handle_bound = 0; csb->csb_dmacookiecnt = 0; csb->csb_dmacurrcookie = 0; csb->csb_dmawincnt = 0; csb->csb_dmacurrwin = 0; csb->csb_ncmds = 6; csb->csb_nrslts = 7; csb->csb_timer = 32; csb->csb_maxretry = rwretry; /* * alloc space for format track cmd */ /* * NOTE: have to add size of fifo also - for dummy format action */ fmdatlen = 4 * numsctr; if (ddi_dma_alloc_handle(fcp->c_dip, &fdc_dma_attr, DDI_DMA_SLEEP, 0, &csb->csb_dmahandle) != DDI_SUCCESS) { rval = EINVAL; goto out; } /* * allocate a page aligned buffer to dma to/from. This way we can * ensure the cookie is a whole multiple of granularity and avoids * any alignment issues. */ rval = ddi_dma_mem_alloc(csb->csb_dmahandle, fmdatlen, &fdc_accattr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &aligned_buf, &real_size, &mem_handle); if (rval != DDI_SUCCESS) { rval = EINVAL; goto out; } dp = (uchar_t *)aligned_buf; interleave = fjp->fj_attr->fda_intrlv; offset = (numsctr + interleave - 1) / interleave; for (psector = lstart = 1; psector <= numsctr; psector += interleave, lstart++) { for (lsector = lstart; lsector <= numsctr; lsector += offset) { *dp++ = (uchar_t)cyl; *dp++ = (uchar_t)head; *dp++ = (uchar_t)lsector; *dp++ = csb->csb_cmd[2]; } } rval = ddi_dma_addr_bind_handle(csb->csb_dmahandle, NULL, aligned_buf, fmdatlen, DDI_DMA_WRITE | DDI_DMA_STREAMING | DDI_DMA_PARTIAL, DDI_DMA_SLEEP, 0, &csb->csb_dmacookie, &csb->csb_dmacookiecnt); if (rval == DDI_DMA_MAPPED) { csb->csb_dmawincnt = 1; csb->csb_handle_bound = 1; } else if (rval == DDI_DMA_PARTIAL_MAP) { csb->csb_handle_bound = 1; if (ddi_dma_numwin(csb->csb_dmahandle, &csb->csb_dmawincnt) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdtrkformat: dma numwin failed\n"); rval = EINVAL; goto out; } } else { cmn_err(CE_WARN, "fdtrkformat: dma buf bind handle failed, rval = %d\n", rval); rval = EINVAL; goto out; } rval = fdc_exec(fcp, 1, 1); out: if (csb->csb_dmahandle) { if (csb->csb_handle_bound) { if (ddi_dma_unbind_handle(csb->csb_dmahandle) != DDI_SUCCESS) cmn_err(CE_WARN, "fdtrkformat: " "dma unbind handle failed\n"); csb->csb_handle_bound = 0; } if (mem_handle != NULL) { ddi_dma_mem_free(&mem_handle); } ddi_dma_free_handle(&csb->csb_dmahandle); csb->csb_dmahandle = NULL; } return (rval); } /* ARGSUSED */ int fdrawioctl(struct fcu_obj *fjp, int funit, caddr_t arg) { struct fdcntlr *fcp = fjp->fj_fdc; struct fd_raw *fdrp = (struct fd_raw *)arg; struct fdcsb *csb; uint_t dmar_flags = 0; int i; int change = 1; int sleep = 1; int rval = 0; int rval_exec = 0; ddi_acc_handle_t mem_handle = NULL; caddr_t aligned_buf; size_t real_size; FCERRPRINT(FDEP_L2, FDEM_RAWI, (CE_NOTE, "fdrawioctl: cmd[0]=0x%x", fdrp->fdr_cmd[0])); csb = &fcp->c_csb; /* copy cmd bytes into csb */ for (i = 0; i <= fdrp->fdr_cnum; i++) csb->csb_cmd[i] = fdrp->fdr_cmd[i]; csb->csb_ncmds = (uchar_t)fdrp->fdr_cnum; csb->csb_maxretry = 0; /* let the application deal with errors */ csb->csb_opflags = CSB_OFRAWIOCTL; csb->csb_nrslts = 0; csb->csb_timer = 50; switch (fdrp->fdr_cmd[0] & 0x0f) { case FO_SEEK: change = 0; /* FALLTHROUGH */ case FO_RECAL: csb->csb_opflags |= CSB_OFINRPT; break; case FO_FRMT: csb->csb_npcyl = *(uchar_t *)(fdrp->fdr_addr) * fjp->fj_chars->fdc_steps; /* FALLTHROUGH */ case FO_WRDAT: case FO_WRDEL: csb->csb_opflags |= CSB_OFDMAWT | CSB_OFRESLT | CSB_OFINRPT; csb->csb_nrslts = 7; if (fdrp->fdr_nbytes == 0) return (EINVAL); dmar_flags = DDI_DMA_WRITE; break; case FO_RDDAT: case FO_RDDEL: case FO_RDTRK: csb->csb_opflags |= CSB_OFDMARD | CSB_OFRESLT | CSB_OFINRPT; csb->csb_nrslts = 7; dmar_flags = DDI_DMA_READ; break; case FO_RDID: csb->csb_opflags |= CSB_OFRESLT | CSB_OFINRPT; csb->csb_nrslts = 7; break; case FO_SDRV: sleep = 0; csb->csb_nrslts = 1; break; case FO_SINT: sleep = 0; change = 0; csb->csb_nrslts = 2; break; case FO_SPEC: sleep = 0; change = 0; break; default: return (EINVAL); } csb->csb_dmahandle = NULL; csb->csb_handle_bound = 0; csb->csb_dmacookiecnt = 0; csb->csb_dmacurrcookie = 0; csb->csb_dmawincnt = 0; csb->csb_dmacurrwin = 0; if (csb->csb_opflags & (CSB_OFDMARD | CSB_OFDMAWT)) { if (ddi_dma_alloc_handle(fcp->c_dip, &fdc_dma_attr, DDI_DMA_SLEEP, 0, &csb->csb_dmahandle) != DDI_SUCCESS) { rval = EINVAL; goto out; } /* * allocate a page aligned buffer to dma to/from. This way we * can ensure the cookie is a whole multiple of granularity and * avoids any alignment issues. */ rval = ddi_dma_mem_alloc(csb->csb_dmahandle, (uint_t)fdrp->fdr_nbytes, &fdc_accattr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, NULL, &aligned_buf, &real_size, &mem_handle); if (rval != DDI_SUCCESS) { rval = EINVAL; goto out; } if (dmar_flags & DDI_DMA_WRITE) { bcopy(fdrp->fdr_addr, aligned_buf, (uint_t)fdrp->fdr_nbytes); } dmar_flags |= (DDI_DMA_STREAMING | DDI_DMA_PARTIAL); rval = ddi_dma_addr_bind_handle(csb->csb_dmahandle, NULL, aligned_buf, (uint_t)fdrp->fdr_nbytes, dmar_flags, DDI_DMA_SLEEP, 0, &csb->csb_dmacookie, &csb->csb_dmacookiecnt); if (rval == DDI_DMA_MAPPED) { csb->csb_dmawincnt = 1; csb->csb_handle_bound = 1; } else if (rval == DDI_DMA_PARTIAL_MAP) { csb->csb_handle_bound = 1; if (ddi_dma_numwin(csb->csb_dmahandle, &csb->csb_dmawincnt) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdrawioctl: dma numwin failed\n"); rval = EINVAL; goto out; } } else { cmn_err(CE_WARN, "fdrawioctl: " "dma buf bind handle failed, rval = %d\n", rval); rval = EINVAL; goto out; } } FCERRPRINT(FDEP_L1, FDEM_RAWI, (CE_CONT, "cmd: %x %x %x %x %x %x %x %x %x %x\n", csb->csb_cmd[0], csb->csb_cmd[1], csb->csb_cmd[2], csb->csb_cmd[3], csb->csb_cmd[4], csb->csb_cmd[5], csb->csb_cmd[6], csb->csb_cmd[7], csb->csb_cmd[8], csb->csb_cmd[9])); FCERRPRINT(FDEP_L1, FDEM_RAWI, (CE_CONT, "nbytes: %x, opflags: %x, addr: %p, len: %x\n", csb->csb_ncmds, csb->csb_opflags, (void *)fdrp->fdr_addr, fdrp->fdr_nbytes)); /* * Note that we ignore any error returns from fdexec. * This is the way the driver has been, and it may be * that the raw ioctl senders simply don't want to * see any errors returned in this fashion. */ /* * VP/ix sense drive ioctl call checks for the error return. */ rval_exec = fdc_exec(fcp, sleep, change); if (dmar_flags & DDI_DMA_READ) { bcopy(aligned_buf, fdrp->fdr_addr, (uint_t)fdrp->fdr_nbytes); } FCERRPRINT(FDEP_L1, FDEM_RAWI, (CE_CONT, "rslt: %x %x %x %x %x %x %x %x %x %x\n", csb->csb_rslt[0], csb->csb_rslt[1], csb->csb_rslt[2], csb->csb_rslt[3], csb->csb_rslt[4], csb->csb_rslt[5], csb->csb_rslt[6], csb->csb_rslt[7], csb->csb_rslt[8], csb->csb_rslt[9])); /* copy results into fdr */ for (i = 0; i <= (int)csb->csb_nrslts; i++) fdrp->fdr_result[i] = csb->csb_rslt[i]; /* fdrp->fdr_nbytes = fdc->c_csb.csb_rlen; return resid */ out: if (csb->csb_dmahandle) { if (csb->csb_handle_bound) { if (ddi_dma_unbind_handle(csb->csb_dmahandle) != DDI_SUCCESS) cmn_err(CE_WARN, "fdrawioctl: " "dma unbind handle failed\n"); csb->csb_handle_bound = 0; } if (mem_handle != NULL) { ddi_dma_mem_free(&mem_handle); } ddi_dma_free_handle(&csb->csb_dmahandle); csb->csb_dmahandle = NULL; } if ((fdrp->fdr_cmd[0] & 0x0f) == FO_SDRV) { return (rval_exec); } return (rval); } void encode(xlate_tbl_t *tablep, int val, uchar_t *rcode) { do { if (tablep->value >= val) { *rcode = tablep->code; return; } } while ((++tablep)->value); *rcode = tablep->code; cmn_err(CE_WARN, "fdc encode failed, table %p val %x code %x\n", (void *)tablep, val, (uint_t)*rcode); } int decode(xlate_tbl_t *tablep, int kode, int *rvalue) { do { if (tablep->code == kode) { *rvalue = tablep->value; return (0); } } while ((++tablep)->value); return (-1); } void fdcquiesce(struct fdcntlr *fcp) { int unit; FCERRPRINT(FDEP_L2, FDEM_RESE, (CE_NOTE, "fdcquiesce fcp %p", (void*)fcp)); ASSERT(MUTEX_HELD(&fcp->c_lock)); mutex_enter(&fcp->c_dorlock); if (ddi_dmae_stop(fcp->c_dip, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdcquiesce: dmae stop failed, " "dip %p, dmachan %x\n", (void*)fcp->c_dip, fcp->c_dmachan); fcp->c_digout = (fcp->c_digout & (FD_DMTREN | FD_DRSEL)) | FD_ENABLE; outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); drv_usecwait(20); fcp->c_digout |= FD_RSETZ; outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); mutex_exit(&fcp->c_dorlock); /* count resets */ fcp->fdstats.reset++; fcp->c_curunit = -1; for (unit = 0; unit < NFDUN; unit++) fcp->c_curpcyl[unit] = -1; if (fcp->c_chip >= i82077) { (void) fdc_docmd(fcp, configurecmd, 4); /* * Ignored return. If failed, warning was issued by fdc_docmd. */ } } void fdcreadid(struct fdcntlr *fcp, struct fdcsb *csb) { static uchar_t readidcmd[2] = {FO_RDID | FO_MFM, 0}; readidcmd[1] = csb->csb_cmd[1]; (void) fdc_docmd(fcp, readidcmd, 2); } int fdcseek(struct fdcntlr *fcp, int unit, int cyl) { static uchar_t seekabscmd[3] = {FO_SEEK, 0, 0}; FCERRPRINT(FDEP_L0, FDEM_RECA, (CE_CONT, "fdcseek unit %d to cyl %d\n", unit, cyl)); seekabscmd[1] = (uchar_t)unit; seekabscmd[2] = (uchar_t)cyl; return (fdc_docmd(fcp, seekabscmd, 3)); } /* * Returns status of disk change line of selected drive. * = 0 means diskette is present * != 0 means diskette was removed and current state is unknown */ int fdcsense_chng(struct fdcntlr *fcp, int unit) { int digital_input; FCERRPRINT(FDEP_L0, FDEM_SCHG, (CE_CONT, "fdcsense_chng unit %d\n", unit)); digital_input = inb(fcp->c_regbase + FCR_DIR); if (fcp->c_mode == FDCMODE_30) digital_input ^= FDI_DKCHG; return (digital_input & FDI_DKCHG); } int fdcsense_drv(struct fdcntlr *fcp, int unit) { static uchar_t sensedrvcmd[2] = {FO_SDRV, 0}; uchar_t senser; int rval; sensedrvcmd[1] = (uchar_t)unit; (void) fdc_docmd(fcp, sensedrvcmd, 2); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ if (rval = fdc_result(fcp, &senser, 1)) goto done; if (senser & S3_WPROT) fcp->c_unit[unit]->fj_flags |= FUNIT_WPROT; else fcp->c_unit[unit]->fj_flags &= ~FUNIT_WPROT; done: return (rval); } int fdcsense_int(struct fdcntlr *fcp, int *unitp, int *cylp) { uchar_t senser[2]; int rval; (void) fdc_docmd(fcp, &senseintcmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ if (!(rval = fdc_result(fcp, senser, 2))) { if ((*senser & (S0_IVCMD | S0_SEKEND | S0_ECHK)) != S0_SEKEND) rval = 1; if (unitp) *unitp = *senser & 3; if (cylp) *cylp = senser[1]; } return (rval); } int fdcspecify(struct fdcntlr *fcp, int xferrate, int steprate, int hlt) { static uchar_t perpindcmd[2] = {FO_PERP, 0}; static uchar_t specifycmd[3] = {FO_SPEC, 0, 0}; encode(drate_mfm, xferrate, &fcp->c_config); outb(fcp->c_regbase + FCR_CCR, fcp->c_config); if (fcp->c_chip >= i82077) { /* * Use old style perpendicular mode command of 82077. */ if (xferrate == 1000) { /* Set GAP and WGATE */ perpindcmd[1] = 3; /* double step rate because xlate table is for 500Kb */ steprate <<= 1; hlt <<= 1; } else perpindcmd[1] = 0; (void) fdc_docmd(fcp, perpindcmd, 2); /* * Ignored return. If failed, warning was issued by fdc_docmd. */ } encode(step_rate, steprate, &fcp->c_hutsrt); specifycmd[1] = fcp->c_hutsrt |= 0x0F; /* use max head unload time */ hlt = (hlt >= 256) ? 0 : (hlt >> 1); /* encode head load time */ specifycmd[2] = fcp->c_hlt = hlt << 1; /* make room for DMA bit */ return (fdc_docmd(fcp, specifycmd, 3)); } int fdcspdchange(struct fdcntlr *fcp, struct fcu_obj *fjp, int rpm) { int retcode = 0; uint_t ddic; uchar_t deselect = 0; uchar_t ds_code; uchar_t enable_code; uchar_t save; if (((fcp->c_flags & FCFLG_DSOUT) == 0 && rpm <= fjp->fj_rotspd) || ((fcp->c_flags & FCFLG_DSOUT) && (fjp->fj_flags & FUNIT_3DMODE) && rpm > fjp->fj_rotspd)) { return (0); } FCERRPRINT(FDEP_L1, FDEM_SCHG, (CE_CONT, "fdcspdchange: %d rpm\n", rpm)); ASSERT(MUTEX_HELD(&fcp->c_dorlock)); switch (fcp->c_chip) { default: break; case i82077: break; case PC87322: { uchar_t nscmodecmd[5] = {FO_MODE, 0x02, 0x00, 0xC8, 0x00}; if (rpm > fjp->fj_rotspd) { nscmodecmd[3] ^= 0xC0; retcode = (fcp->c_flags ^ FCFLG_DSOUT) || (fjp->fj_flags ^ FUNIT_3DMODE); fcp->c_flags |= FCFLG_DSOUT; fjp->fj_flags |= FUNIT_3DMODE; } else { /* program DENSEL to default output */ fcp->c_flags &= ~FCFLG_DSOUT; retcode = fjp->fj_flags & FUNIT_3DMODE; fjp->fj_flags &= ~FUNIT_3DMODE; } if (retcode && (fcp->c_digout & FD_DRSEL) == fcp->c_curunit) { /* de-select drive while changing speed */ deselect = fcp->c_digout ^ FD_DRSEL; outb(fcp->c_regbase + FCR_DOR, deselect); } (void) fdc_docmd(fcp, nscmodecmd, 5); /* * Ignored return. If failed, warning was issued by fdc_docmd. */ break; } case FDC37C665: enable_code = FSA_ENA5; goto SMC_config; case FDC37C666: enable_code = FSA_ENA6; SMC_config: if (rpm > fjp->fj_rotspd) { /* force DENSEL output to active LOW */ ds_code = FSB_DSHI; retcode = (fcp->c_flags ^ FCFLG_DSOUT) || (fjp->fj_flags ^ FUNIT_3DMODE); fcp->c_flags |= FCFLG_DSOUT; fjp->fj_flags |= FUNIT_3DMODE; } else { /* program DENSEL to default output */ ds_code = 0; fcp->c_flags &= ~FCFLG_DSOUT; retcode = fjp->fj_flags & FUNIT_3DMODE; fjp->fj_flags &= ~FUNIT_3DMODE; } if (retcode && (fcp->c_digout & FD_DRSEL) == fcp->c_curunit) { /* de-select drive while changing speed */ deselect = fcp->c_digout ^ FD_DRSEL; outb(fcp->c_regbase + FCR_DOR, deselect); } save = inb(fcp->c_regbase + FCR_SRA); /* enter configuration mode */ ddic = ddi_enter_critical(); outb(fcp->c_regbase + FCR_SRA, enable_code); outb(fcp->c_regbase + FCR_SRA, enable_code); ddi_exit_critical(ddic); outb(fcp->c_regbase + FCR_SRA, FSA_CR5); enable_code = inb(fcp->c_regbase + FCR_SRB) & FSB_DSDEF; /* update DENSEL mode bits */ outb(fcp->c_regbase + FCR_SRB, enable_code | ds_code); /* exit configuration mode */ outb(fcp->c_regbase + FCR_SRA, FSA_DISB); drv_usecwait(10); outb(fcp->c_regbase + FCR_SRA, save); break; } if (deselect) /* reselect drive */ outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); return (retcode); } static int fdc_motorsm(struct fcu_obj *fjp, int input, int timeval) { struct fdcntlr *fcp = fjp->fj_fdc; int unit = fjp->fj_unit & 3; int old_mstate; int rval = 0; uchar_t motorbit; ASSERT(MUTEX_HELD(&fcp->c_dorlock)); old_mstate = fcp->c_mtrstate[unit]; encode(motor_onbits, unit, &motorbit); switch (input) { case FMI_TIMER: /* timer expired */ fcp->c_motort[unit] = 0; switch (old_mstate) { case FMS_START: case FMS_DELAY: fcp->c_mtrstate[unit] = FMS_ON; break; case FMS_KILLST: fcp->c_motort[unit] = timeout(fdmotort, (void *)fjp, drv_usectohz(1000000)); fcp->c_mtrstate[unit] = FMS_IDLE; break; case FMS_IDLE: fcp->c_digout &= ~motorbit; outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); fcp->c_mtrstate[unit] = FMS_OFF; fjp->fj_flags &= ~FUNIT_3DMODE; break; case 86: rval = -1; break; case FMS_OFF: case FMS_ON: default: rval = -2; } break; case FMI_STARTCMD: /* start command */ switch (old_mstate) { case FMS_IDLE: fcp->c_mtrstate[unit] = 86; mutex_exit(&fcp->c_dorlock); (void) untimeout(fcp->c_motort[unit]); mutex_enter(&fcp->c_dorlock); fcp->c_motort[unit] = 0; fcp->c_mtrstate[unit] = FMS_ON; break; case FMS_OFF: fcp->c_digout |= motorbit; outb(fcp->c_regbase + FCR_DOR, fcp->c_digout); /* start motor_spinup_timer */ ASSERT(timeval > 0); fcp->c_motort[unit] = timeout(fdmotort, (void *)fjp, drv_usectohz(100000 * timeval)); /* FALLTHROUGH */ case FMS_KILLST: fcp->c_mtrstate[unit] = FMS_START; break; default: rval = -2; } break; case FMI_RSTARTCMD: /* restart command */ if (fcp->c_motort[unit] != 0) { fcp->c_mtrstate[unit] = 86; mutex_exit(&fcp->c_dorlock); (void) untimeout(fcp->c_motort[unit]); mutex_enter(&fcp->c_dorlock); } ASSERT(timeval > 0); fcp->c_motort[unit] = timeout(fdmotort, (void *)fjp, drv_usectohz(100000 * timeval)); fcp->c_mtrstate[unit] = FMS_START; break; case FMI_DELAYCMD: /* delay command */ if (fcp->c_motort[unit] == 0) fcp->c_motort[unit] = timeout(fdmotort, (void *)fjp, drv_usectohz(15000)); fcp->c_mtrstate[unit] = FMS_DELAY; break; case FMI_IDLECMD: /* idle command */ switch (old_mstate) { case FMS_DELAY: fcp->c_mtrstate[unit] = 86; mutex_exit(&fcp->c_dorlock); (void) untimeout(fcp->c_motort[unit]); mutex_enter(&fcp->c_dorlock); /* FALLTHROUGH */ case FMS_ON: ASSERT(timeval > 0); fcp->c_motort[unit] = timeout(fdmotort, (void *)fjp, drv_usectohz(100000 * timeval)); fcp->c_mtrstate[unit] = FMS_IDLE; break; case FMS_START: fcp->c_mtrstate[unit] = FMS_KILLST; break; default: rval = -2; } break; default: rval = -3; } if (rval) { FCERRPRINT(FDEP_L4, FDEM_EXEC, (CE_WARN, "fdc_motorsm: unit %d bad input %d or bad state %d", (int)fjp->fj_unit, input, old_mstate)); #if 0 cmn_err(CE_WARN, "fdc_motorsm: unit %d bad input %d or bad state %d\n", (int)fjp->fj_unit, input, old_mstate); fcp->c_mtrstate[unit] = FMS_OFF; if (fcp->c_motort[unit] != 0) { mutex_exit(&fcp->c_dorlock); (void) untimeout(fcp->c_motort[unit]); mutex_enter(&fcp->c_dorlock); fcp->c_motort[unit] = 0; } #endif } else FCERRPRINT(FDEP_L0, FDEM_EXEC, (CE_CONT, "fdc_motorsm unit %d: input %d, %d -> %d\n", (int)fjp->fj_unit, input, old_mstate, fcp->c_mtrstate[unit])); return (rval); } /* * fdmotort * is called from timeout() when a motor timer has expired. */ static void fdmotort(void *arg) { struct fcu_obj *fjp = (struct fcu_obj *)arg; struct fdcntlr *fcp = fjp->fj_fdc; struct fdcsb *csb = &fcp->c_csb; int unit = fjp->fj_unit & 3; int mval; int newxstate = 0; mutex_enter(&fcp->c_dorlock); mval = fdc_motorsm(fjp, FMI_TIMER, 0); mutex_exit(&fcp->c_dorlock); if (mval < 0) return; mutex_enter(&fcp->c_lock); if ((fcp->c_flags & FCFLG_WAITING) && fcp->c_mtrstate[unit] == FMS_ON && (csb->csb_xstate == FXS_MTRON || csb->csb_xstate == FXS_HDST || csb->csb_xstate == FXS_DKCHGX)) newxstate = fdc_statemach(fcp); if (newxstate == -1) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_motort unit %d: motor ready but bad xstate", (int)fjp->fj_unit)); fcp->c_csb.csb_cmdstat = EIO; } if (newxstate == -1 || newxstate == FXS_END) { fcp->c_flags ^= FCFLG_WAITING; cv_signal(&fcp->c_iocv); } mutex_exit(&fcp->c_lock); } /* * DMA interrupt service routine * * Called by EISA dma interrupt service routine when buffer chaining * is required. */ ddi_dma_cookie_t * fdc_dmae_isr(struct fdcntlr *fcp) { struct fdcsb *csb = &fcp->c_csb; off_t off; size_t len; if (csb->csb_dmahandle && !csb->csb_cmdstat) { if (++csb->csb_dmacurrcookie < csb->csb_dmacookiecnt) { ddi_dma_nextcookie(csb->csb_dmahandle, &csb->csb_dmacookie); return (&csb->csb_dmacookie); } else if (++csb->csb_dmacurrwin < csb->csb_dmawincnt) { if (ddi_dma_getwin(csb->csb_dmahandle, csb->csb_dmacurrwin, &off, &len, &csb->csb_dmacookie, &csb->csb_dmacookiecnt) != DDI_SUCCESS) { return (NULL); } csb->csb_dmacurrcookie = 0; return (&csb->csb_dmacookie); } } else cmn_err(CE_WARN, "fdc: unsolicited DMA interrupt\n"); return (NULL); } /* * returns: * 0 if all ok, * ENXIO - diskette not in drive * ETIMEDOUT - for immediate operations that timed out * EBUSY - if stupid chip is locked busy??? * ENOEXEC - for timeout during sending cmds to chip * * to sleep: set sleep * to check for disk changed: set change */ static int fdc_exec(struct fdcntlr *fcp, int sleep, int change) { struct ddi_dmae_req dmaereq; struct fcu_obj *fjp; struct fdcsb *csb; off_t off; size_t len; int unit; mutex_enter(&fcp->c_lock); FCERRPRINT(FDEP_L0, FDEM_EXEC, (CE_CONT, "fdc_exec: sleep %x change %x\n", sleep, change)); csb = &fcp->c_csb; unit = csb->csb_drive; fjp = fcp->c_unit[unit]; if (csb->csb_opflags & CSB_OFINRPT) { if (*csb->csb_cmd == FO_RECAL) csb->csb_npcyl = 0; else if ((*csb->csb_cmd & ~FO_MFM) != FO_FRMT) csb->csb_npcyl = csb->csb_cmd[2] * fjp->fj_chars->fdc_steps; csb->csb_xstate = FXS_START; } else csb->csb_xstate = FXS_DOIT; csb->csb_retrys = 0; csb->csb_ourtrys = 0; if (csb->csb_dmahandle) { /* ensure that entire format xfer is in one cookie */ /* * The change from ddi_dma_buf/addr_setup() to * ddi_dma_buf/addr_bind_handle() has already loaded * the first DMA window and cookie. */ if ((*csb->csb_cmd & ~FO_MFM) == FO_FRMT && (4 * csb->csb_cmd[3]) != csb->csb_dmacookie.dmac_size) { mutex_exit(&fcp->c_lock); return (EINVAL); } } retry: if (fcp->c_curunit != unit || !(fjp->fj_flags & FUNIT_CHAROK)) { fcp->c_curunit = unit; fjp->fj_flags |= FUNIT_CHAROK; if (fjp->fj_chars->fdc_transfer_rate == 417) { /* XXX hack for fdformat */ /* fjp->fj_chars->fdc_transfer_rate == 500; */ fjp->fj_attr->fda_rotatespd = 360; } if (fdcspecify(fcp, fjp->fj_chars->fdc_transfer_rate, fjp->fj_drive->fdd_steprate, 40)) cmn_err(CE_WARN, "fdc_select: controller setup rejected " "fdcntrl %p transfer rate %x step rate %x " "head load time 40\n", (void*)fcp, fjp->fj_chars->fdc_transfer_rate, fjp->fj_drive->fdd_steprate); mutex_enter(&fcp->c_dorlock); if (fdcspdchange(fcp, fjp, fjp->fj_attr->fda_rotatespd)) { /* 3D drive requires 500 ms for speed change */ (void) fdc_motorsm(fjp, FMI_RSTARTCMD, 5); /* * Return value ignored - fdcmotort deals with failure. */ } mutex_exit(&fcp->c_dorlock); } /* * If checking for disk_change is enabled * (i.e. not seeking in fdresetchng), * we sample the DSKCHG line to see if the diskette has wandered away. */ if (change && fdcsense_chng(fcp, unit)) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "diskette %d changed!!!", csb->csb_drive)); fcp->c_unit[unit]->fj_flags |= FUNIT_CHANGED; /* * If the diskette is still gone... so are we, adios! */ if (fdcheckdisk(fcp, unit)) { mutex_exit(&fcp->c_lock); /* VP/ix expects an EBUSY return here */ if (*csb->csb_cmd == FO_SDRV) { return (EBUSY); } return (ENXIO); } /* * delay to ensure that new diskette is up to speed */ mutex_enter(&fcp->c_dorlock); (void) fdc_motorsm(fjp, FMI_RSTARTCMD, fjp->fj_drive->fdd_motoron); /* * Return value ignored - fdcmotort deals with failure. */ mutex_exit(&fcp->c_dorlock); } /* * gather some statistics */ switch (csb->csb_cmd[0] & 0x1f) { case FO_RDDAT: fcp->fdstats.rd++; break; case FO_WRDAT: fcp->fdstats.wr++; break; case FO_RECAL: fcp->fdstats.recal++; break; case FO_FRMT: fcp->fdstats.form++; break; default: fcp->fdstats.other++; break; } bzero(csb->csb_rslt, 10); csb->csb_cmdstat = 0; if (csb->csb_dmahandle) { bzero(&dmaereq, sizeof (struct ddi_dmae_req)); dmaereq.der_command = (csb->csb_opflags & CSB_OFDMAWT) ? DMAE_CMD_WRITE : DMAE_CMD_READ; /* * setup for dma buffer chaining regardless of bus capability */ dmaereq.der_bufprocess = DMAE_BUF_CHAIN; dmaereq.proc = fdc_dmae_isr; dmaereq.procparms = (void *)fcp; if (ddi_dmae_prog(fcp->c_dip, &dmaereq, &csb->csb_dmacookie, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdc_exec: dmae prog failed, " "dip %p, dmachan %x\n", (void*)fcp->c_dip, fcp->c_dmachan); } if ((fdc_statemach(fcp) == FXS_DOWT) && !sleep) { /* * If the operation has no results - then just return */ if (!csb->csb_nrslts) { mutex_exit(&fcp->c_lock); return (0); } /* * this operation has no interrupt and an immediate result * so wait for the results and stuff them into the csb */ if (fdc_statemach(fcp) == -1) { mutex_exit(&fcp->c_lock); return (EIO); } } else { fcp->c_flags |= FCFLG_WAITING; /* * wait for completion interrupt */ while (fcp->c_flags & FCFLG_WAITING) { cv_wait(&fcp->c_iocv, &fcp->c_lock); } } /* * See if there was an error detected, if so, fdrecover() * will check it out and say what to do. * * Don't do this, though, if this was the Sense Drive Status * or the Dump Registers command. */ if (csb->csb_cmdstat && *csb->csb_cmd != FO_SDRV) { /* if it can restarted OK, then do so, else return error */ if (fdrecover(fcp)) { mutex_exit(&fcp->c_lock); return (EIO); } /* ASSUMES that cmd is still intact in csb */ if (csb->csb_xstate == FXS_END) csb->csb_xstate = FXS_START; if (fdc_dma_attr.dma_attr_sgllen > 1 && csb->csb_dmahandle) { /* * restarted read/write operation requires * first DMA cookie of current window */ if (ddi_dma_getwin(csb->csb_dmahandle, csb->csb_dmacurrwin, &off, &len, &csb->csb_dmacookie, &csb->csb_dmacookiecnt) != DDI_SUCCESS) { mutex_exit(&fcp->c_lock); return (EIO); } csb->csb_dmacurrcookie = 0; } goto retry; } /* things went ok */ mutex_exit(&fcp->c_lock); return (0); } /* * fdcheckdisk * called by fdc_exec to check if the disk is still there - do a seek * then see if DSKCHG line went away; if so, diskette is in; else * it's (still) out. */ int fdcheckdisk(struct fdcntlr *fcp, int unit) { struct fdcsb *csb = &fcp->c_csb; int newcyl; /* where to seek for reset of DSKCHG */ int rval; enum fxstate save_xstate; uchar_t save_cmd, save_cd1, save_npcyl; ASSERT(MUTEX_HELD(&fcp->c_lock)); FCERRPRINT(FDEP_L1, FDEM_CHEK, (CE_CONT, "fdcheckdisk unit %d\n", unit)); if (fcp->c_curpcyl[unit]) newcyl = fcp->c_curpcyl[unit] - 1; else newcyl = 1; save_cmd = *csb->csb_cmd; save_cd1 = csb->csb_cmd[1]; save_npcyl = csb->csb_npcyl; save_xstate = csb->csb_xstate; *csb->csb_cmd = FO_SEEK; csb->csb_cmd[1] = (uchar_t)unit; csb->csb_npcyl = (uchar_t)newcyl; fcp->c_flags |= FCFLG_WAITING; if (fcp->c_mtrstate[unit] != FMS_ON && fcp->c_motort[unit] != 0) /* * wait for motor to get up to speed, * and let motor_timer issue seek cmd */ csb->csb_xstate = FXS_DKCHGX; else { /* * motor is up to speed; issue seek cmd now */ csb->csb_xstate = FXS_SEEK; if (rval = fdcseek(fcp, unit, newcyl)) { /* * any recal/seek errors are too serious to attend to */ FCERRPRINT(FDEP_L3, FDEM_CHEK, (CE_WARN, "fdcheckdisk err %d", rval)); fcp->c_flags ^= FCFLG_WAITING; } } /* * wait for completion interrupt * XXX This should be backed up with a watchdog timer! */ while (fcp->c_flags & FCFLG_WAITING) { cv_wait(&fcp->c_iocv, &fcp->c_lock); } /* * if disk change still asserted, no diskette in drive! */ if (rval = fdcsense_chng(fcp, unit)) { FCERRPRINT(FDEP_L3, FDEM_CHEK, (CE_WARN, "fdcheckdisk no disk %d", unit)); } *csb->csb_cmd = save_cmd; csb->csb_cmd[1] = save_cd1; csb->csb_npcyl = save_npcyl; csb->csb_xstate = save_xstate; return (rval); } static int fdrecover(struct fdcntlr *fcp) { struct fcu_obj *fjp; struct fdcsb *csb = &fcp->c_csb; int residual; int unit; char *failure; FCERRPRINT(FDEP_L2, FDEM_RECO, (CE_NOTE, "fdrecover unit %d", csb->csb_drive)); unit = csb->csb_drive; fjp = fcp->c_unit[unit]; if (fcp->c_flags & FCFLG_TIMEOUT) { fcp->c_flags ^= FCFLG_TIMEOUT; csb->csb_rslt[1] |= 0x08; FCERRPRINT(FDEP_L3, FDEM_RECO, (CE_WARN, "fd unit %d: %s timed out", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname)); } if (csb->csb_status & S0_SEKEND) fcp->c_curpcyl[unit] = -1; switch (csb->csb_oldxs) { case FXS_RCAL: /* recalibrate */ case FXS_SEEK: /* seek */ case FXS_RESET: /* cntlr reset */ FCERRPRINT(FDEP_L4, FDEM_RECO, (CE_WARN, "fd unit %d: %s error: st0=0x%x pcn=%d", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, *csb->csb_rslt, csb->csb_rslt[1])); if (csb->csb_retrys++ < skretry && !(csb->csb_opflags & CSB_OFRAWIOCTL)) return (0); break; case FXS_RDID: /* read ID */ if (!(csb->csb_status & S0_SEKEND)) csb->csb_xstate = FXS_HDST; /* FALLTHROUGH */ case FXS_DOIT: /* original operation */ case FXS_DOWT: /* waiting on operation */ if (csb->csb_opflags & (CSB_OFDMARD | CSB_OFDMAWT)) { if (ddi_dmae_getcnt(fcp->c_dip, fcp->c_dmachan, &residual) != DDI_SUCCESS) cmn_err(CE_WARN, "fdc_recover: dmae getcnt failed, " "dip %p dmachan %x residual %x\n", (void*)fcp->c_dip, fcp->c_dmachan, residual); FCERRPRINT(FDEP_L2, FDEM_RECO, (CE_NOTE, "fd unit %d: %s error: " "dma count=0x%lx residual=0x%x", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, csb->csb_dmacookie.dmac_size, residual)); } if (csb->csb_rslt[1] == S1_OVRUN) /* * handle retries of over/underrun * with a secondary retry counter */ if (++csb->csb_ourtrys <= OURUN_TRIES) { FCERRPRINT(FDEP_L2, FDEM_RECO, (CE_NOTE, "fd unit %d: %s error: over/under-run", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname)); return (0); } else /* * count 1 set of over/underruns * as 1 primary retry effort */ csb->csb_ourtrys = 0; if ((fjp->fj_flags & (FUNIT_UNLABELED | FUNIT_LABELOK)) && !(csb->csb_opflags & CSB_OFRAWIOCTL)) { /* * device is open so keep trying and * gather statistics on errors */ if (csb->csb_rslt[1] & S1_CRCER) fcp->fdstats.de++; if (csb->csb_rslt[1] & S1_OVRUN) fcp->fdstats.run++; if (csb->csb_rslt[1] & (S1_NODATA | S1_MADMK)) fcp->fdstats.bfmt++; if (csb->csb_rslt[1] & 0x08) fcp->fdstats.to++; /* * if we have not run out of retries, return 0 */ if (csb->csb_retrys++ < csb->csb_maxretry && (*csb->csb_cmd & ~FO_MFM) != FO_FRMT) { if (csb->csb_opflags & (CSB_OFDMARD | CSB_OFDMAWT)) { FCERRPRINT(FDEP_L4, FDEM_RECO, (CE_WARN, "fd unit %d: %s error: " "st0=0x%x st1=0x%x st2=0x%x", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, *csb->csb_rslt, csb->csb_rslt[1], csb->csb_rslt[2])); } if ((csb->csb_retrys & 1) && csb->csb_xstate == FXS_END) csb->csb_xstate = FXS_DOIT; else if (csb->csb_retrys == 3) csb->csb_xstate = FXS_RESTART; return (0); } if (csb->csb_rslt[1] & S1_CRCER) failure = "crc error"; else if (csb->csb_rslt[1] & S1_OVRUN) failure = "over/under-run"; else if (csb->csb_rslt[1] & (S1_NODATA | S1_MADMK)) failure = "bad format"; else if (csb->csb_rslt[1] & 0x08) failure = "timeout"; else failure = "failed"; cmn_err(CE_NOTE, "!fd unit %d: %s %s (%x %x %x)", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, failure, *csb->csb_rslt, csb->csb_rslt[1], csb->csb_rslt[2]); } else { FCERRPRINT(FDEP_L2, FDEM_RECO, (CE_NOTE, "fd unit %d: %s failed (%x %x %x)", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, *csb->csb_rslt, csb->csb_rslt[1], csb->csb_rslt[2])); } break; default: FCERRPRINT(FDEP_L4, FDEM_RECO, (CE_WARN, "fd unit %d: %s failed: st0=0x%x st1=0x%x st2=0x%x", csb->csb_drive, fdcmds[*csb->csb_cmd & 0x1f].cmdname, *csb->csb_rslt, csb->csb_rslt[1], csb->csb_rslt[2])); break; } return (1); } /* Autovector Interrupt Entry Point */ /* ARGSUSED */ static uint_t fdc_intr(caddr_t arg) { struct fdcntlr *fcp = (struct fdcntlr *)arg; struct fdcsb *csb; off_t off; size_t blklen; int drive; int newstate; int pendstate; int rval = DDI_DMA_DONE; int state; int maxspin = 10; csb = &fcp->c_csb; mutex_enter(&fcp->c_lock); /* * Wait for the RQM bit to be set, or until we've tested it * a bunch of times (which may imply this isn't our interrupt). */ state = inb(fcp->c_regbase + FCR_MSR); pendstate = state & (MS_RQM | MS_DIO | MS_CB); while (((pendstate & MS_RQM) == 0) && (maxspin-- > 0)) { /* Small pause in between reading the status port */ drv_usecwait(10); /* Reread the status port */ state = inb(fcp->c_regbase + FCR_MSR); pendstate = state & (MS_RQM | MS_DIO | MS_CB); } FCERRPRINT(FDEP_L0, FDEM_INTR, (CE_CONT, "fdc_intr unit %d: xstate=%d MSR=0x%x\n", csb->csb_drive, csb->csb_xstate, state)); /* * If there is an operation outstanding AND the controller is ready * to receive a command or send us the result of a command (OR if the * controller is ready to accept a new command), AND if * someone has been waiting for a command to finish AND (if no unit * is BUSY OR if the unit that we're waiting for is BUSY (i.e. it's in * the middle of a seek/recalibrate)) then this interrupt is for us. */ if ((pendstate == (MS_RQM | MS_DIO | MS_CB) || pendstate == MS_RQM) && (fcp->c_flags & FCFLG_WAITING) && (!(state & 0x0f) || ((1 << csb->csb_drive) & state))) { /* * Remove one of the conditions for entering this code. * The state_machine will release the c_lock if it * calls untimeout() */ fcp->c_flags ^= FCFLG_WAITING; if ((newstate = fdc_statemach(fcp)) == -1) { /* restore waiting flag */ fcp->c_flags |= FCFLG_WAITING; mutex_exit(&fcp->c_lock); return (DDI_INTR_CLAIMED); } if (fcp->c_intrstat) KIOIP->intrs[KSTAT_INTR_HARD]++; if (newstate == FXS_END) { if (csb->csb_dmahandle && !csb->csb_cmdstat && /* * read/write operation may have multiple DMA * cookies: process next one */ ((csb->csb_dmacurrcookie < (csb->csb_dmacookiecnt - 1)) || (csb->csb_dmacurrwin) < (csb->csb_dmawincnt - 1))) { /* * read/write operation requires another * DMA cookie: process next one */ if (++csb->csb_dmacurrcookie < csb->csb_dmacookiecnt) { ddi_dma_nextcookie(csb->csb_dmahandle, &csb->csb_dmacookie); } else if (++csb->csb_dmacurrwin < csb->csb_dmawincnt) { if (ddi_dma_getwin(csb->csb_dmahandle, csb->csb_dmacurrwin, &off, &blklen, &csb->csb_dmacookie, &csb->csb_dmacookiecnt) != DDI_SUCCESS) { cmn_err(CE_WARN, "fdc_intr: " "dma getwin failed\n"); } csb->csb_dmacurrcookie = 0; } if (ddi_dmae_prog(fcp->c_dip, NULL, &csb->csb_dmacookie, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdc_intr: dmae prog failed, " "dip %p dmachannel %x\n", (void*)fcp->c_dip, fcp->c_dmachan); /* * status of last operation has disk * address for continuation */ csb->csb_cmd[2] = csb->csb_rslt[3]; csb->csb_cmd[3] = csb->csb_rslt[4]; csb->csb_cmd[4] = csb->csb_rslt[5]; csb->csb_cmd[1] = (csb->csb_cmd[1] & ~0x04) | (csb->csb_cmd[3] << 2); csb->csb_xstate = FXS_START; (void) fdc_statemach(fcp); /* * Ignored return. If failed, warning already * posted. Returned state irrelevant. */ /* restore waiting flag */ fcp->c_flags |= FCFLG_WAITING; goto fi_exit; } if (rval != DDI_DMA_DONE) csb->csb_cmdstat = EIO; /* * somebody's waiting for completion of fdcntlr/csb, * wake them */ cv_signal(&fcp->c_iocv); } else /* restore waiting flag */ fcp->c_flags |= FCFLG_WAITING; fi_exit: mutex_exit(&fcp->c_lock); return (DDI_INTR_CLAIMED); } if (state & MS_RQM) { (void) fdcsense_int(fcp, &drive, NULL); /* * Ignored return - senser state already saved */ FCERRPRINT(FDEP_L4, FDEM_INTR, (CE_WARN, "fdc_intr unit %d: nobody sleeping 0x%x", drive, state)); } else { FCERRPRINT(FDEP_L4, FDEM_INTR, (CE_WARN, "fdc_intr: nobody sleeping on %d 0x%x", csb->csb_drive, state)); } /* * This should probably be protected, but, what the * heck...the cost isn't worth the accuracy for this * statistic. */ if (fcp->c_intrstat) KIOIP->intrs[KSTAT_INTR_SPURIOUS]++; mutex_exit(&fcp->c_lock); return (DDI_INTR_UNCLAIMED); } /* * fdwatch * is called from timeout() when a floppy operation timer has expired. */ static void fdwatch(void *arg) { struct fdcntlr *fcp = (struct fdcntlr *)arg; struct fdcsb *csb; mutex_enter(&fcp->c_lock); if (fcp->c_timeid == 0) { /* * fdc_intr got here first, ergo, no timeout condition.. */ mutex_exit(&fcp->c_lock); return; } if (fcp->c_flags & FCFLG_WAITING) { if (ddi_dmae_stop(fcp->c_dip, fcp->c_dmachan) != DDI_SUCCESS) cmn_err(CE_WARN, "fdwatch: dmae stop failed, " "dip %p, dmachan %x\n", (void*)fcp->c_dip, fcp->c_dmachan); csb = &fcp->c_csb; FCERRPRINT(FDEP_L3, FDEM_WATC, (CE_WARN, "fdcwatch unit %d: xstate = %d", csb->csb_drive, csb->csb_xstate)); drv_usecwait(50); if (inb(fcp->c_regbase + FCR_MSR) != MS_RQM) { /* * cntlr is still busy, so reset it */ csb->csb_xstate = FXS_KILL; (void) fdc_statemach(fcp); /* * Ignored return. If failed, warning already * posted. Returned state irrelevant. */ } else { csb->csb_xstate = FXS_END; fcp->c_timeid = 0; fcp->c_flags ^= FCFLG_WAITING; cv_signal(&fcp->c_iocv); } csb->csb_cmdstat = EIO; fcp->c_flags |= FCFLG_TIMEOUT; } else { FCERRPRINT(FDEP_L4, FDEM_INTR, (CE_WARN, "fdcwatch: not sleeping for unit %d", fcp->c_csb.csb_drive)); } if (fcp->c_intrstat) KIOIP->intrs[KSTAT_INTR_WATCHDOG]++; mutex_exit(&fcp->c_lock); } static int fdc_statemach(struct fdcntlr *fcp) { struct fcu_obj *fjp; struct fdcsb *csb = &fcp->c_csb; int backoff; clock_t time; int unit; ASSERT(MUTEX_HELD(&fcp->c_lock)); unit = csb->csb_drive; fjp = fcp->c_unit[unit]; csb->csb_oldxs = csb->csb_xstate; switch (csb->csb_xstate) { case FXS_START: /* start of operation */ ASSERT(fcp->c_timeid == 0); time = drv_usectohz(100000 * (unsigned int)csb->csb_timer); if (time == 0) time = drv_usectohz(2000000); fcp->c_timeid = timeout(fdwatch, (void *)fcp, time); if (fcp->c_mtrstate[unit] == FMS_START) { /* * wait for motor to get up to speed */ csb->csb_xstate = FXS_MTRON; break; } /* FALLTHROUGH */ case FXS_MTRON: /* motor is at speed */ if (fcp->c_mtrstate[unit] != FMS_ON) { /* how did we get here ?? */ cmn_err(CE_WARN, "fdc: selected but motor off"); return (-1); } if (fcp->c_curpcyl[unit] != -1 && *csb->csb_cmd != FO_RECAL) goto nxs_seek; recalcmd[1] = (uchar_t)unit; if (fdc_docmd(fcp, recalcmd, 2) == -1) { /* cntlr did not accept command bytes */ fdcquiesce(fcp); csb->csb_cmdstat = EIO; csb->csb_xstate = FXS_RESET; break; } fcp->c_sekdir[unit] = 0; csb->csb_xstate = FXS_RCAL; break; case FXS_RCAL: /* forced recalibrate is complete */ #if 0 /* #ifdef _VPIX */ /* WARNING: this code breaks SPARC compatibility */ if (csb->csb_opflags & CSB_OFRAWIOCTL && *csb->csb_cmd == FO_RECAL) { fcp->c_curpcyl[unit] = 0; csb->csb_status = 0; goto nxs_cmpl; } #endif (void) fdc_docmd(fcp, &senseintcmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ (void) fdc_result(fcp, csb->csb_rslt, 2); /* * Ignored return. If failed, warning was issued by fdc_result. * Actual results checked below */ if ((csb->csb_status = ((*csb->csb_rslt ^ S0_SEKEND) & (S0_ICMASK | S0_SEKEND | S0_ECHK | S0_NOTRDY))) != 0) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_statemach unit %d: recal result %x", csb->csb_drive, *csb->csb_rslt)); fdcquiesce(fcp); csb->csb_cmdstat = EIO; csb->csb_xstate = FXS_RESET; break; } if (unit != (*csb->csb_rslt & 3) || csb->csb_rslt[1]) { csb->csb_status = S0_SEKEND; goto nxs_cmpl; } fcp->c_curpcyl[unit] = csb->csb_rslt[1]; if (*csb->csb_cmd == FO_RECAL) goto nxs_cmpl; nxs_seek: if (*csb->csb_cmd != FO_SEEK && csb->csb_npcyl == fcp->c_curpcyl[unit]) goto nxs_doit; fcp->c_sekdir[unit] = csb->csb_npcyl - fcp->c_curpcyl[unit]; /* FALLTHROUGH */ case FXS_DKCHGX: /* reset Disk-Change latch */ (void) fdcseek(fcp, csb->csb_cmd[1], csb->csb_npcyl); /* * Ignored return. If command rejected, warnig already posted * by fdc_docmd(). */ csb->csb_xstate = FXS_SEEK; break; case FXS_RESTART: /* special restart of read/write operation */ ASSERT(fcp->c_timeid == 0); time = drv_usectohz(100000 * csb->csb_timer); if (time == 0) time = drv_usectohz(2000000); fcp->c_timeid = timeout(fdwatch, (void *)fcp, time); if (fcp->c_mtrstate[unit] != FMS_ON) { cmn_err(CE_WARN, "fdc: selected but motor off"); return (-1); } if ((csb->csb_npcyl == 0 || fcp->c_sekdir[unit] >= 0) && (int)csb->csb_cmd[2] < (fjp->fj_chars->fdc_ncyl - 1)) backoff = csb->csb_npcyl + 1; else backoff = csb->csb_npcyl - 1; (void) fdcseek(fcp, csb->csb_cmd[1], backoff); /* * Ignored return. If command rejected, warnig already posted * by fdc_docmd(). */ csb->csb_xstate = FXS_RESEEK; break; case FXS_RESEEK: /* seek to backoff-cyl complete */ (void) fdc_docmd(fcp, &senseintcmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ (void) fdc_result(fcp, csb->csb_rslt, 2); /* * Ignored return. If failed, warning was issued by fdc_result. * Actual results checked below */ if ((csb->csb_status = ((*csb->csb_rslt ^ S0_SEKEND) & (S0_ICMASK | S0_SEKEND | S0_ECHK | S0_NOTRDY))) != 0) goto nxs_cmpl; (void) fdcseek(fcp, csb->csb_cmd[1], csb->csb_npcyl); /* * Ignored return. If command rejected, warnig already posted * by fdc_docmd(). */ csb->csb_xstate = FXS_SEEK; break; case FXS_SEEK: /* seek complete */ #if 0 /* #ifdef _VPIX */ /* WARNING: this code breaks SPARC compatibility and */ /* rawioctls in fdformat */ if (csb->csb_opflags & CSB_OFRAWIOCTL) { fcp->c_curpcyl[unit] = csb->csb_npcyl; csb->csb_status = 0; goto nxs_cmpl; } #endif (void) fdc_docmd(fcp, &senseintcmd, 1); /* * Ignored return. If failed, warning was issued by fdc_docmd. * fdc_results retrieves the controller/drive status */ (void) fdc_result(fcp, csb->csb_rslt, 2); /* * Ignored return. If failed, warning was issued by fdc_result. * Actual results checked below */ if ((csb->csb_status = ((*csb->csb_rslt ^ S0_SEKEND) & (S0_ICMASK | S0_SEKEND | S0_ECHK | S0_NOTRDY))) != 0) goto nxs_cmpl; if (unit != (*csb->csb_rslt & 3) || csb->csb_rslt[1] != csb->csb_npcyl) { csb->csb_status = S0_SEKEND; goto nxs_cmpl; }; fcp->c_curpcyl[unit] = csb->csb_rslt[1]; /* use motor_timer to delay for head settle */ mutex_enter(&fcp->c_dorlock); (void) fdc_motorsm(fjp, FMI_DELAYCMD, fjp->fj_drive->fdd_headsettle / 1000); /* * Return value ignored - fdcmotort deals with failure. */ mutex_exit(&fcp->c_dorlock); csb->csb_xstate = FXS_HDST; break; case FXS_HDST: /* head settle */ if (*csb->csb_cmd == FO_SEEK) goto nxs_cmpl; if ((*csb->csb_cmd & ~FO_MFM) == FO_FRMT) goto nxs_doit; fdcreadid(fcp, csb); csb->csb_xstate = FXS_RDID; break; case FXS_RDID: /* read ID complete */ (void) fdc_result(fcp, csb->csb_rslt, 7); /* * Ignored return. If failed, warning was issued by fdc_result. * Actual results checked below */ if ((csb->csb_status = (*csb->csb_rslt & (S0_ICMASK | S0_ECHK | S0_NOTRDY))) != 0) goto nxs_cmpl; if (csb->csb_cmd[2] != csb->csb_rslt[3]) { /* at wrong logical cylinder */ csb->csb_status = S0_SEKEND; goto nxs_cmpl; }; goto nxs_doit; case FXS_DOIT: /* do original operation */ ASSERT(fcp->c_timeid == 0); time = drv_usectohz(100000 * csb->csb_timer); if (time == 0) time = drv_usectohz(2000000); fcp->c_timeid = timeout(fdwatch, (void *)fcp, time); nxs_doit: if (fdc_docmd(fcp, csb->csb_cmd, csb->csb_ncmds) == -1) { /* cntlr did not accept command bytes */ fdcquiesce(fcp); csb->csb_xstate = FXS_RESET; csb->csb_cmdstat = EIO; break; } csb->csb_xstate = FXS_DOWT; break; case FXS_DOWT: /* operation complete */ (void) fdc_result(fcp, csb->csb_rslt, csb->csb_nrslts); /* * Ignored return. If failed, warning was issued by fdc_result. * Actual results checked below. */ if (*csb->csb_cmd == FO_SDRV) { csb->csb_status = (*csb->csb_rslt ^ (S3_DRRDY | S3_2SIDE)) & ~(S3_HEAD | S3_UNIT); } else { csb->csb_status = *csb->csb_rslt & (S0_ICMASK | S0_ECHK | S0_NOTRDY); } nxs_cmpl: if (csb->csb_status) csb->csb_cmdstat = EIO; csb->csb_xstate = FXS_END; /* remove watchdog timer if armed and not already triggered */ if (fcp->c_timeid != 0) { timeout_id_t timeid; timeid = fcp->c_timeid; fcp->c_timeid = 0; mutex_exit(&fcp->c_lock); (void) untimeout(timeid); mutex_enter(&fcp->c_lock); } break; case FXS_KILL: /* quiesce cntlr by reset */ fdcquiesce(fcp); fcp->c_timeid = timeout(fdwatch, (void *)fcp, drv_usectohz(2000000)); csb->csb_xstate = FXS_RESET; break; case FXS_RESET: /* int from reset */ for (unit = 0; unit < NFDUN; unit++) { (void) fdcsense_int(fcp, NULL, NULL); fcp->c_curpcyl[unit] = -1; } if (fcp->c_timeid != 0) { timeout_id_t timeid; timeid = fcp->c_timeid; fcp->c_timeid = 0; mutex_exit(&fcp->c_lock); (void) untimeout(timeid); mutex_enter(&fcp->c_lock); } csb->csb_xstate = FXS_END; break; default: cmn_err(CE_WARN, "fdc: statemach, unknown state"); return (-1); } FCERRPRINT(FDEP_L1, FDEM_EXEC, (CE_CONT, "fdc_statemach unit %d: %d -> %d\n", csb->csb_drive, csb->csb_oldxs, csb->csb_xstate)); return (csb->csb_xstate); } /* * routine to program a command into the floppy disk controller. */ int fdc_docmd(struct fdcntlr *fcp, uchar_t *oplistp, uchar_t count) { int ntries; ASSERT(count >= 1); FCERRPRINT(FDEP_L0, FDEM_EXEC, (CE_CONT, "fdc_docmd: %x %x %x %x %x %x %x %x %x\n", oplistp[0], oplistp[1], oplistp[2], oplistp[3], oplistp[4], oplistp[5], oplistp[6], oplistp[7], oplistp[8])); do { ntries = FDC_RQM_RETRY; do { if ((inb(fcp->c_regbase + FCR_MSR) & (MS_RQM|MS_DIO)) == MS_RQM) break; else drv_usecwait(1); } while (--ntries); if (ntries == 0) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_docmd: ctlr not ready")); return (-1); } outb(fcp->c_regbase + FCR_DATA, *oplistp++); drv_usecwait(16); /* See comment in fdc_result() */ } while (--count); return (0); } /* * Routine to return controller/drive status information. * The diskette-controller data-register is read the * requested number of times and the results are placed in * consecutive memory locations starting at the passed * address. */ int fdc_result(struct fdcntlr *fcp, uchar_t *rsltp, uchar_t rcount) { int ntries; uchar_t *abresultp = rsltp; uchar_t stat; int laxative = 7; ntries = 10 * FDC_RQM_RETRY; do { do { if ((inb(fcp->c_regbase + FCR_MSR) & (MS_RQM | MS_DIO)) == (MS_RQM | MS_DIO)) break; else drv_usecwait(10); } while (--ntries); if (!ntries) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_result: ctlr not ready")); return (-2); } *rsltp++ = inb(fcp->c_regbase + FCR_DATA); /* * The PRM suggests waiting for 14.5 us. * Adding a bit more to cover the case of bad calibration * of drv_usecwait(). */ drv_usecwait(16); ntries = FDC_RQM_RETRY; } while (--rcount); while ((inb(fcp->c_regbase + FCR_MSR) & MS_CB) && laxative--) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_result: ctlr still busy")); /* * try to complete Result phase by purging * result bytes queued for reading */ *abresultp = S0_IVCMD; do { stat = inb(fcp->c_regbase + FCR_MSR) & (MS_RQM | MS_DIO); if (stat == MS_RQM) { /* * Result phase is complete * but did we get the results corresponding to * the command we think we executed? */ return (-1); } if (stat == (MS_RQM | MS_DIO)) break; else drv_usecwait(10); } while (--ntries); if (!ntries || !laxative) { FCERRPRINT(FDEP_L3, FDEM_EXEC, (CE_WARN, "fdc_result: ctlr still busy and not ready")); return (-3); } (void) inb(fcp->c_regbase + FCR_DATA); drv_usecwait(16); /* See comment above */ ntries = FDC_RQM_RETRY; } return (0); } /* * Function: get_unit() * * Assumptions: ioaddr is either 0x3f0 or 0x370 */ static int get_unit(dev_info_t *dip, int *cntrl_num) { int ioaddr; if (get_ioaddr(dip, &ioaddr) != DDI_SUCCESS) return (DDI_FAILURE); switch (ioaddr) { case 0x3f0: *cntrl_num = 0; break; case 0x370: *cntrl_num = 1; break; default: return (DDI_FAILURE); } return (DDI_SUCCESS); } static int get_ioaddr(dev_info_t *dip, int *ioaddr) { int reglen, nregs, i; int status = DDI_FAILURE; struct { int bustype; int base; int size; } *reglist; if (ddi_getlongprop(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS, "reg", (caddr_t)®list, ®len) != DDI_PROP_SUCCESS) { cmn_err(CE_WARN, "fdc: reg property not found"); return (DDI_FAILURE); } nregs = reglen / sizeof (*reglist); for (i = 0; i < nregs; i++) { if (reglist[i].bustype == 1) { *ioaddr = reglist[i].base; status = DDI_SUCCESS; break; } } kmem_free(reglist, reglen); if (status == DDI_SUCCESS) { if (*ioaddr == 0x3f2 || *ioaddr == 0x372) { /* * Some BIOS's (ASUS is one) don't include first * two IO ports in the floppy controller resources. */ *ioaddr -= 2; /* step back to 0x3f0 or 0x370 */ /* * It would be nice to update the regs property as well * so device pathname contains 3f0 instead of 3f2, but * updating the regs now won't have this effect as that * component of the device pathname has already been * constructed by the ISA nexus driver. * * reglist[i].base -= 2; * reglist[i].size += 2; * dev = makedevice(ddi_driver_major(dip), 0); * ddi_prop_update_int_array(dev, dip, "reg", * (int *)reglist, reglen / sizeof (int)); */ } } return (status); }