1 files changed, 372 insertions, 0 deletions

diff --git a/drivers/scsi/sim710.c b/drivers/scsi/sim710.c
new file mode 100644
index 000000000000..63bf2aecbc57
--- /dev/null
+++ b/drivers/scsi/sim710.c
@@ -0,0 +1,372 @@
+/*
+ * sim710.c - Copyright (C) 1999 Richard Hirst <richard@sleepie.demon.co.uk>
+ *
+ *----------------------------------------------------------------------------
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by 
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *----------------------------------------------------------------------------
+ *
+ * MCA card detection code by Trent McNair.
+ * Fixes to not explicitly nul bss data from Xavier Bestel.
+ * Some multiboard fixes from Rolf Eike Beer.
+ * Auto probing of EISA config space from Trevor Hemsley.
+ *
+ * Rewritten to use 53c700.c by James.Bottomley@SteelEye.com
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+
+#include <linux/blkdev.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/mca.h>
+#include <linux/eisa.h>
+#include <linux/interrupt.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_spi.h>
+
+#include "53c700.h"
+
+
+/* Must be enough for both EISA and MCA */
+#define MAX_SLOTS 8
+static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
+
+static char *sim710;            /* command line passed by insmod */
+
+MODULE_AUTHOR("Richard Hirst");
+MODULE_DESCRIPTION("Simple NCR53C710 driver");
+MODULE_LICENSE("GPL");
+
+module_param(sim710, charp, 0);
+
+#ifdef MODULE
+#define ARG_SEP ' '
+#else
+#define ARG_SEP ','
+#endif
+
+static __init int
+param_setup(char *str)
+{
+        char *pos = str, *next;
+        int slot = -1;
+
+        while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
+                int val = (int)simple_strtoul(++next, NULL, 0);
+
+                if(!strncmp(pos, "slot:", 5))
+                        slot = val;
+                else if(!strncmp(pos, "id:", 3)) {
+                        if(slot == -1) {
+                                printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
+                        } else if(slot > MAX_SLOTS) {
+                                printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
+                        } else {
+                                id_array[slot] = val;
+                        }
+                }
+                if((pos = strchr(pos, ARG_SEP)) != NULL)
+                        pos++;
+        }
+        return 1;
+}
+__setup("sim710=", param_setup);
+
+static struct scsi_host_template sim710_driver_template = {
+        .name                   = "LSI (Symbios) 710 MCA/EISA",
+        .proc_name              = "sim710",
+        .this_id                = 7,
+        .module                 = THIS_MODULE,
+};
+
+static __devinit int
+sim710_probe_common(struct device *dev, unsigned long base_addr,
+                    int irq, int clock, int differential, int scsi_id)
+{
+        struct Scsi_Host * host = NULL;
+        struct NCR_700_Host_Parameters *hostdata =
+                kmalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
+
+        printk(KERN_NOTICE "sim710: %s\n", dev->bus_id);
+        printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
+               irq, clock, base_addr, scsi_id);
+
+        if(hostdata == NULL) {
+                printk(KERN_ERR "sim710: Failed to allocate host data\n");
+                goto out;
+        }
+        memset(hostdata, 0, sizeof(struct NCR_700_Host_Parameters));
+
+        if(request_region(base_addr, 64, "sim710") == NULL) {
+                printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
+                       base_addr);
+                goto out_free;
+        }
+
+        /* Fill in the three required pieces of hostdata */
+        hostdata->base = base_addr;
+        hostdata->differential = differential;
+        hostdata->clock = clock;
+        hostdata->chip710 = 1;
+        NCR_700_set_io_mapped(hostdata);
+
+        /* and register the chip */
+        if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
+           == NULL) {
+                printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
+                goto out_release;
+        }
+        host->this_id = scsi_id;
+        host->irq = irq;
+        if (request_irq(irq, NCR_700_intr, SA_SHIRQ, "sim710", host)) {
+                printk(KERN_ERR "sim710: request_irq failed\n");
+                goto out_put_host;
+        }
+
+        scsi_scan_host(host);
+
+        return 0;
+
+ out_put_host:
+        scsi_host_put(host);
+ out_release:
+        release_region(host->base, 64);
+ out_free:
+        kfree(hostdata);
+ out:
+        return -ENODEV;
+}
+
+static __devexit int
+sim710_device_remove(struct device *dev)
+{
+        struct Scsi_Host *host = dev_to_shost(dev);
+        struct NCR_700_Host_Parameters *hostdata =
+                (struct NCR_700_Host_Parameters *)host->hostdata[0];
+
+        scsi_remove_host(host);
+        NCR_700_release(host);
+        kfree(hostdata);
+        free_irq(host->irq, host);
+        return 0;
+}
+
+#ifdef CONFIG_MCA
+
+/* CARD ID 01BB and 01BA use the same pos values */
+#define MCA_01BB_IO_PORTS { 0x0000, 0x0000, 0x0800, 0x0C00, 0x1000, 0x1400, \
+                            0x1800, 0x1C00, 0x2000, 0x2400, 0x2800, \
+                            0x2C00, 0x3000, 0x3400, 0x3800, 0x3C00, \
+                            0x4000, 0x4400, 0x4800, 0x4C00, 0x5000  }
+
+#define MCA_01BB_IRQS { 3, 5, 11, 14 }
+
+/* CARD ID 004f */
+#define MCA_004F_IO_PORTS { 0x0000, 0x0200, 0x0300, 0x0400, 0x0500,  0x0600 }
+#define MCA_004F_IRQS { 5, 9, 14 }
+
+static short sim710_mca_id_table[] = { 0x01bb, 0x01ba, 0x004f, 0};
+
+static __init int
+sim710_mca_probe(struct device *dev)
+{
+        struct mca_device *mca_dev = to_mca_device(dev);
+        int slot = mca_dev->slot;
+        int pos[3];
+        unsigned int base;
+        int irq_vector;
+        short id = sim710_mca_id_table[mca_dev->index];
+        static int io_004f_by_pos[] = MCA_004F_IO_PORTS;
+        static int irq_004f_by_pos[] = MCA_004F_IRQS;
+        static int io_01bb_by_pos[] = MCA_01BB_IO_PORTS;
+        static int irq_01bb_by_pos[] = MCA_01BB_IRQS;
+        char *name;
+        int clock;
+
+        pos[0] = mca_device_read_stored_pos(mca_dev, 2);
+        pos[1] = mca_device_read_stored_pos(mca_dev, 3);
+        pos[2] = mca_device_read_stored_pos(mca_dev, 4);
+
+        /*
+         * 01BB & 01BA port base by bits 7,6,5,4,3,2 in pos[2]
+         *
+         *    000000  <disabled>   001010  0x2800
+         *    000001  <invalid>    001011  0x2C00
+         *    000010  0x0800       001100  0x3000
+         *    000011  0x0C00       001101  0x3400
+         *    000100  0x1000       001110  0x3800
+         *    000101  0x1400       001111  0x3C00
+         *    000110  0x1800       010000  0x4000
+         *    000111  0x1C00       010001  0x4400
+         *    001000  0x2000       010010  0x4800
+         *    001001  0x2400       010011  0x4C00
+         *                         010100  0x5000
+         *
+         * 00F4 port base by bits 3,2,1 in pos[0]
+         *
+         *    000  <disabled>      001    0x200
+         *    010  0x300           011    0x400
+         *    100  0x500           101    0x600
+         *
+         * 01BB & 01BA IRQ is specified in pos[0] bits 7 and 6:
+         *
+         *    00   3               10   11
+         *    01   5               11   14
+         *
+         * 00F4 IRQ specified by bits 6,5,4 in pos[0]
+         *
+         *    100   5              101    9
+         *    110   14
+         */
+
+        if (id == 0x01bb || id == 0x01ba) {
+                base = io_01bb_by_pos[(pos[2] & 0xFC) >> 2];
+                irq_vector =
+                        irq_01bb_by_pos[((pos[0] & 0xC0) >> 6)];
+
+                clock = 50;
+                if (id == 0x01bb)
+                        name = "NCR 3360/3430 SCSI SubSystem";
+                else
+                        name = "NCR Dual SIOP SCSI Host Adapter Board";
+        } else if ( id == 0x004f ) {
+                base = io_004f_by_pos[((pos[0] & 0x0E) >> 1)];
+                irq_vector =
+                        irq_004f_by_pos[((pos[0] & 0x70) >> 4) - 4];
+                clock = 50;
+                name = "NCR 53c710 SCSI Host Adapter Board";
+        } else {
+                return -ENODEV;
+        }
+        mca_device_set_name(mca_dev, name);
+        mca_device_set_claim(mca_dev, 1);
+        base = mca_device_transform_ioport(mca_dev, base);
+        irq_vector = mca_device_transform_irq(mca_dev, irq_vector);
+
+        return sim710_probe_common(dev, base, irq_vector, clock,
+                                   0, id_array[slot]);
+}
+
+static struct mca_driver sim710_mca_driver = {
+        .id_table               = sim710_mca_id_table,
+        .driver = {
+                .name           = "sim710",
+                .bus            = &mca_bus_type,
+                .probe          = sim710_mca_probe,
+                .remove         = __devexit_p(sim710_device_remove),
+        },
+};
+
+#endif /* CONFIG_MCA */
+
+#ifdef CONFIG_EISA
+static struct eisa_device_id sim710_eisa_ids[] = {
+        { "CPQ4410" },
+        { "CPQ4411" },
+        { "HWP0C80" },
+        { "" }
+};
+
+static __init int
+sim710_eisa_probe(struct device *dev)
+{
+        struct eisa_device *edev = to_eisa_device(dev);
+        unsigned long io_addr = edev->base_addr;
+        char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
+        char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
+        char *eisa_irqs;
+        unsigned char irq_index;
+        unsigned char irq, differential = 0, scsi_id = 7;
+
+        if(strcmp(edev->id.sig, "HWP0C80") == 0) {
+                __u8 val;
+                eisa_irqs =  eisa_hwp_irqs;
+                irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
+
+                val = inb(io_addr + 0x4);
+                scsi_id = ffs(val) - 1;
+
+                if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
+                        printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev->bus_id);
+                        scsi_id = 7;
+                }
+        } else {
+                eisa_irqs = eisa_cpq_irqs;
+                irq_index = inb(io_addr + 0xc88) & 0x07;
+        }
+
+        if(irq_index >= strlen(eisa_irqs)) {
+                printk("sim710.c: irq nasty\n");
+                return -ENODEV;
+        }
+
+        irq = eisa_irqs[irq_index];
+                
+        return sim710_probe_common(dev, io_addr, irq, 50,
+                                   differential, scsi_id);
+}
+
+static struct eisa_driver sim710_eisa_driver = {
+        .id_table               = sim710_eisa_ids,
+        .driver = {
+                .name           = "sim710",
+                .probe          = sim710_eisa_probe,
+                .remove         = __devexit_p(sim710_device_remove),
+        },
+};
+#endif /* CONFIG_EISA */
+
+static int __init sim710_init(void)
+{
+        int err = -ENODEV;
+
+#ifdef MODULE
+        if (sim710)
+                param_setup(sim710);
+#endif
+
+#ifdef CONFIG_MCA
+        err = mca_register_driver(&sim710_mca_driver);
+#endif
+
+#ifdef CONFIG_EISA
+        err = eisa_driver_register(&sim710_eisa_driver);
+#endif
+        /* FIXME: what we'd really like to return here is -ENODEV if
+         * no devices have actually been found.  Instead, the err
+         * above actually only reports problems with kobject_register,
+         * so for the moment return success */
+
+        return 0;
+}
+
+static void __exit sim710_exit(void)
+{
+#ifdef CONFIG_MCA
+        if (MCA_bus)
+                mca_unregister_driver(&sim710_mca_driver);
+#endif
+
+#ifdef CONFIG_EISA
+        eisa_driver_unregister(&sim710_eisa_driver);
+#endif
+}
+
+module_init(sim710_init);
+module_exit(sim710_exit);