Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 415 insertions, 0 deletions

diff --git a/drivers/scsi/aic7xxx/aic7770.c b/drivers/scsi/aic7xxx/aic7770.c
new file mode 100644
index 000000000000..92703bb35982
--- /dev/null
+++ b/drivers/scsi/aic7xxx/aic7770.c
@@ -0,0 +1,415 @@
+/*
+ * Product specific probe and attach routines for:
+ *      27/284X and aic7770 motherboard SCSI controllers
+ *
+ * Copyright (c) 1994-1998, 2000, 2001 Justin T. Gibbs.
+ * 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,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
+ *
+ * $Id: //depot/aic7xxx/aic7xxx/aic7770.c#32 $
+ *
+ * $FreeBSD$
+ */
+
+#ifdef __linux__
+#include "aic7xxx_osm.h"
+#include "aic7xxx_inline.h"
+#include "aic7xxx_93cx6.h"
+#else
+#include <dev/aic7xxx/aic7xxx_osm.h>
+#include <dev/aic7xxx/aic7xxx_inline.h>
+#include <dev/aic7xxx/aic7xxx_93cx6.h>
+#endif
+
+#define ID_AIC7770      0x04907770
+#define ID_AHA_274x     0x04907771
+#define ID_AHA_284xB    0x04907756 /* BIOS enabled */
+#define ID_AHA_284x     0x04907757 /* BIOS disabled*/
+#define ID_OLV_274x     0x04907782 /* Olivetti OEM */
+#define ID_OLV_274xD    0x04907783 /* Olivetti OEM (Differential) */
+
+static int aic7770_chip_init(struct ahc_softc *ahc);
+static int aic7770_suspend(struct ahc_softc *ahc);
+static int aic7770_resume(struct ahc_softc *ahc);
+static int aha2840_load_seeprom(struct ahc_softc *ahc);
+static ahc_device_setup_t ahc_aic7770_VL_setup;
+static ahc_device_setup_t ahc_aic7770_EISA_setup;
+static ahc_device_setup_t ahc_aic7770_setup;
+
+struct aic7770_identity aic7770_ident_table[] =
+{
+        {
+                ID_AHA_274x,
+                0xFFFFFFFF,
+                "Adaptec 274X SCSI adapter",
+                ahc_aic7770_EISA_setup
+        },
+        {
+                ID_AHA_284xB,
+                0xFFFFFFFE,
+                "Adaptec 284X SCSI adapter",
+                ahc_aic7770_VL_setup
+        },
+        {
+                ID_AHA_284x,
+                0xFFFFFFFE,
+                "Adaptec 284X SCSI adapter (BIOS Disabled)",
+                ahc_aic7770_VL_setup
+        },
+        {
+                ID_OLV_274x,
+                0xFFFFFFFF,
+                "Adaptec (Olivetti OEM) 274X SCSI adapter",
+                ahc_aic7770_EISA_setup
+        },
+        {
+                ID_OLV_274xD,
+                0xFFFFFFFF,
+                "Adaptec (Olivetti OEM) 274X Differential SCSI adapter",
+                ahc_aic7770_EISA_setup
+        },
+        /* Generic chip probes for devices we don't know 'exactly' */
+        {
+                ID_AIC7770,
+                0xFFFFFFFF,
+                "Adaptec aic7770 SCSI adapter",
+                ahc_aic7770_EISA_setup
+        }
+};
+const int ahc_num_aic7770_devs = NUM_ELEMENTS(aic7770_ident_table);
+
+struct aic7770_identity *
+aic7770_find_device(uint32_t id)
+{
+        struct  aic7770_identity *entry;
+        int     i;
+
+        for (i = 0; i < ahc_num_aic7770_devs; i++) {
+                entry = &aic7770_ident_table[i];
+                if (entry->full_id == (id & entry->id_mask))
+                        return (entry);
+        }
+        return (NULL);
+}
+
+int
+aic7770_config(struct ahc_softc *ahc, struct aic7770_identity *entry, u_int io)
+{
+        u_long  l;
+        int     error;
+        int     have_seeprom;
+        u_int   hostconf;
+        u_int   irq;
+        u_int   intdef;
+
+        error = entry->setup(ahc);
+        have_seeprom = 0;
+        if (error != 0)
+                return (error);
+
+        error = aic7770_map_registers(ahc, io);
+        if (error != 0)
+                return (error);
+
+        /*
+         * Before we continue probing the card, ensure that
+         * its interrupts are *disabled*.  We don't want
+         * a misstep to hang the machine in an interrupt
+         * storm.
+         */
+        ahc_intr_enable(ahc, FALSE);
+
+        ahc->description = entry->name;
+        error = ahc_softc_init(ahc);
+        if (error != 0)
+                return (error);
+
+        ahc->bus_chip_init = aic7770_chip_init;
+        ahc->bus_suspend = aic7770_suspend;
+        ahc->bus_resume = aic7770_resume;
+
+        error = ahc_reset(ahc, /*reinit*/FALSE);
+        if (error != 0)
+                return (error);
+
+        /* Make sure we have a valid interrupt vector */
+        intdef = ahc_inb(ahc, INTDEF);
+        irq = intdef & VECTOR;
+        switch (irq) {
+        case 9:
+        case 10:
+        case 11:
+        case 12:
+        case 14:
+        case 15:
+                break;
+        default:
+                printf("aic7770_config: invalid irq setting %d\n", intdef);
+                return (ENXIO);
+        }
+
+        if ((intdef & EDGE_TRIG) != 0)
+                ahc->flags |= AHC_EDGE_INTERRUPT;
+
+        switch (ahc->chip & (AHC_EISA|AHC_VL)) {
+        case AHC_EISA:
+        {
+                u_int biosctrl;
+                u_int scsiconf;
+                u_int scsiconf1;
+
+                biosctrl = ahc_inb(ahc, HA_274_BIOSCTRL);
+                scsiconf = ahc_inb(ahc, SCSICONF);
+                scsiconf1 = ahc_inb(ahc, SCSICONF + 1);
+
+                /* Get the primary channel information */
+                if ((biosctrl & CHANNEL_B_PRIMARY) != 0)
+                        ahc->flags |= 1;
+
+                if ((biosctrl & BIOSMODE) == BIOSDISABLED) {
+                        ahc->flags |= AHC_USEDEFAULTS;
+                } else {
+                        if ((ahc->features & AHC_WIDE) != 0) {
+                                ahc->our_id = scsiconf1 & HWSCSIID;
+                                if (scsiconf & TERM_ENB)
+                                        ahc->flags |= AHC_TERM_ENB_A;
+                        } else {
+                                ahc->our_id = scsiconf & HSCSIID;
+                                ahc->our_id_b = scsiconf1 & HSCSIID;
+                                if (scsiconf & TERM_ENB)
+                                        ahc->flags |= AHC_TERM_ENB_A;
+                                if (scsiconf1 & TERM_ENB)
+                                        ahc->flags |= AHC_TERM_ENB_B;
+                        }
+                }
+                if ((ahc_inb(ahc, HA_274_BIOSGLOBAL) & HA_274_EXTENDED_TRANS))
+                        ahc->flags |= AHC_EXTENDED_TRANS_A|AHC_EXTENDED_TRANS_B;
+                break;
+        }
+        case AHC_VL:
+        {
+                have_seeprom = aha2840_load_seeprom(ahc);
+                break;
+        }
+        default:
+                break;
+        }
+        if (have_seeprom == 0) {
+                free(ahc->seep_config, M_DEVBUF);
+                ahc->seep_config = NULL;
+        }
+
+        /*
+         * Ensure autoflush is enabled
+         */
+        ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
+
+        /* Setup the FIFO threshold and the bus off time */
+        hostconf = ahc_inb(ahc, HOSTCONF);
+        ahc_outb(ahc, BUSSPD, hostconf & DFTHRSH);
+        ahc_outb(ahc, BUSTIME, (hostconf << 2) & BOFF);
+
+        ahc->bus_softc.aic7770_softc.busspd = hostconf & DFTHRSH;
+        ahc->bus_softc.aic7770_softc.bustime = (hostconf << 2) & BOFF;
+
+        /*
+         * Generic aic7xxx initialization.
+         */
+        error = ahc_init(ahc);
+        if (error != 0)
+                return (error);
+
+        error = aic7770_map_int(ahc, irq);
+        if (error != 0)
+                return (error);
+
+        ahc_list_lock(&l);
+        /*
+         * Link this softc in with all other ahc instances.
+         */
+        ahc_softc_insert(ahc);
+
+        /*
+         * Enable the board's BUS drivers
+         */
+        ahc_outb(ahc, BCTL, ENABLE);
+
+        ahc_list_unlock(&l);
+
+        return (0);
+}
+
+static int
+aic7770_chip_init(struct ahc_softc *ahc)
+{
+        ahc_outb(ahc, BUSSPD, ahc->bus_softc.aic7770_softc.busspd);
+        ahc_outb(ahc, BUSTIME, ahc->bus_softc.aic7770_softc.bustime);
+        ahc_outb(ahc, SBLKCTL, ahc_inb(ahc, SBLKCTL) & ~AUTOFLUSHDIS);
+        ahc_outb(ahc, BCTL, ENABLE);
+        return (ahc_chip_init(ahc));
+}
+
+static int
+aic7770_suspend(struct ahc_softc *ahc)
+{
+        return (ahc_suspend(ahc));
+}
+
+static int
+aic7770_resume(struct ahc_softc *ahc)
+{
+        return (ahc_resume(ahc));
+}
+
+/*
+ * Read the 284x SEEPROM.
+ */
+static int
+aha2840_load_seeprom(struct ahc_softc *ahc)
+{
+        struct  seeprom_descriptor sd;
+        struct  seeprom_config *sc;
+        int     have_seeprom;
+        uint8_t scsi_conf;
+
+        sd.sd_ahc = ahc;
+        sd.sd_control_offset = SEECTL_2840;
+        sd.sd_status_offset = STATUS_2840;
+        sd.sd_dataout_offset = STATUS_2840;             
+        sd.sd_chip = C46;
+        sd.sd_MS = 0;
+        sd.sd_RDY = EEPROM_TF;
+        sd.sd_CS = CS_2840;
+        sd.sd_CK = CK_2840;
+        sd.sd_DO = DO_2840;
+        sd.sd_DI = DI_2840;
+        sc = ahc->seep_config;
+
+        if (bootverbose)
+                printf("%s: Reading SEEPROM...", ahc_name(ahc));
+        have_seeprom = ahc_read_seeprom(&sd, (uint16_t *)sc,
+                                        /*start_addr*/0, sizeof(*sc)/2);
+
+        if (have_seeprom) {
+
+                if (ahc_verify_cksum(sc) == 0) {
+                        if(bootverbose)
+                                printf ("checksum error\n");
+                        have_seeprom = 0;
+                } else if (bootverbose) {
+                        printf("done.\n");
+                }
+        }
+
+        if (!have_seeprom) {
+                if (bootverbose)
+                        printf("%s: No SEEPROM available\n", ahc_name(ahc));
+                ahc->flags |= AHC_USEDEFAULTS;
+        } else {
+                /*
+                 * Put the data we've collected down into SRAM
+                 * where ahc_init will find it.
+                 */
+                int      i;
+                int      max_targ;
+                uint16_t discenable;
+
+                max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8;
+                discenable = 0;
+                for (i = 0; i < max_targ; i++){
+                        uint8_t target_settings;
+
+                        target_settings = (sc->device_flags[i] & CFXFER) << 4;
+                        if (sc->device_flags[i] & CFSYNCH)
+                                target_settings |= SOFS;
+                        if (sc->device_flags[i] & CFWIDEB)
+                                target_settings |= WIDEXFER;
+                        if (sc->device_flags[i] & CFDISC)
+                                discenable |= (0x01 << i);
+                        ahc_outb(ahc, TARG_SCSIRATE + i, target_settings);
+                }
+                ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff));
+                ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff));
+
+                ahc->our_id = sc->brtime_id & CFSCSIID;
+
+                scsi_conf = (ahc->our_id & 0x7);
+                if (sc->adapter_control & CFSPARITY)
+                        scsi_conf |= ENSPCHK;
+                if (sc->adapter_control & CFRESETB)
+                        scsi_conf |= RESET_SCSI;
+
+                if (sc->bios_control & CF284XEXTEND)            
+                        ahc->flags |= AHC_EXTENDED_TRANS_A;
+                /* Set SCSICONF info */
+                ahc_outb(ahc, SCSICONF, scsi_conf);
+
+                if (sc->adapter_control & CF284XSTERM)
+                        ahc->flags |= AHC_TERM_ENB_A;
+        }
+        return (have_seeprom);
+}
+
+static int
+ahc_aic7770_VL_setup(struct ahc_softc *ahc)
+{
+        int error;
+
+        error = ahc_aic7770_setup(ahc);
+        ahc->chip |= AHC_VL;
+        return (error);
+}
+
+static int
+ahc_aic7770_EISA_setup(struct ahc_softc *ahc)
+{
+        int error;
+
+        error = ahc_aic7770_setup(ahc);
+        ahc->chip |= AHC_EISA;
+        return (error);
+}
+
+static int
+ahc_aic7770_setup(struct ahc_softc *ahc)
+{
+        ahc->channel = 'A';
+        ahc->channel_b = 'B';
+        ahc->chip = AHC_AIC7770;
+        ahc->features = AHC_AIC7770_FE;
+        ahc->bugs |= AHC_TMODE_WIDEODD_BUG;
+        ahc->flags |= AHC_PAGESCBS;
+        ahc->instruction_ram_size = 448;
+        return (0);
+}