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https://github.com/edk2-porting/linux-next.git
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m68k: amiga - GVP Series II SCSI zorro_driver conversion
Acked-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven
parent
65c2784a24
commit
c1d288a589
@ -1,26 +1,20 @@
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/blkdev.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <linux/zorro.h>
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#include <asm/setup.h>
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#include <asm/page.h>
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#include <asm/pgtable.h>
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#include <asm/amigaints.h>
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#include <asm/amigahw.h>
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#include <linux/zorro.h>
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#include <asm/irq.h>
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#include <linux/spinlock.h>
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#include "scsi.h"
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#include <scsi/scsi_host.h>
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#include "wd33c93.h"
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#include "gvp11.h"
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#include <linux/stat.h>
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#define CHECK_WD33C93
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@ -169,7 +163,40 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
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}
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}
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static int __init check_wd33c93(struct gvp11_scsiregs *regs)
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static int gvp11_bus_reset(struct scsi_cmnd *cmd)
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{
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struct Scsi_Host *instance = cmd->device->host;
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/* FIXME perform bus-specific reset */
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/* FIXME 2: shouldn't we no-op this function (return
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FAILED), and fall back to host reset function,
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wd33c93_host_reset ? */
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spin_lock_irq(instance->host_lock);
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wd33c93_host_reset(cmd);
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spin_unlock_irq(instance->host_lock);
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return SUCCESS;
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}
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static struct scsi_host_template gvp11_scsi_template = {
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.module = THIS_MODULE,
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.name = "GVP Series II SCSI",
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.proc_info = wd33c93_proc_info,
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.proc_name = "GVP11",
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.queuecommand = wd33c93_queuecommand,
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.eh_abort_handler = wd33c93_abort,
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.eh_bus_reset_handler = gvp11_bus_reset,
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.eh_host_reset_handler = wd33c93_host_reset,
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.can_queue = CAN_QUEUE,
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.this_id = 7,
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.sg_tablesize = SG_ALL,
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.cmd_per_lun = CMD_PER_LUN,
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.use_clustering = DISABLE_CLUSTERING
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};
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static int __devinit check_wd33c93(struct gvp11_scsiregs *regs)
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{
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#ifdef CHECK_WD33C93
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volatile unsigned char *sasr_3393, *scmd_3393;
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@ -249,163 +276,150 @@ static int __init check_wd33c93(struct gvp11_scsiregs *regs)
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return 0;
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}
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int __init gvp11_detect(struct scsi_host_template *tpnt)
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static int __devinit gvp11_probe(struct zorro_dev *z,
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const struct zorro_device_id *ent)
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{
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static unsigned char called = 0;
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struct Scsi_Host *instance;
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unsigned long address;
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int error;
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unsigned int epc;
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struct zorro_dev *z = NULL;
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unsigned int default_dma_xfer_mask;
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struct WD33C93_hostdata *hdata;
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struct gvp11_scsiregs *regs;
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wd33c93_regs wdregs;
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int num_gvp11 = 0;
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if (!MACH_IS_AMIGA || called)
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return 0;
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called = 1;
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default_dma_xfer_mask = ent->driver_data;
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tpnt->proc_name = "GVP11";
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tpnt->proc_info = &wd33c93_proc_info;
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/*
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* Rumors state that some GVP ram boards use the same product
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* code as the SCSI controllers. Therefore if the board-size
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* is not 64KB we asume it is a ram board and bail out.
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*/
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if (zorro_resource_len(z) != 0x10000)
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return -ENODEV;
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while ((z = zorro_find_device(ZORRO_WILDCARD, z))) {
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/*
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* This should (hopefully) be the correct way to identify
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* all the different GVP SCSI controllers (except for the
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* SERIES I though).
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*/
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address = z->resource.start;
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if (!request_mem_region(address, 256, "wd33c93"))
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return -EBUSY;
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if (z->id == ZORRO_PROD_GVP_COMBO_030_R3_SCSI ||
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z->id == ZORRO_PROD_GVP_SERIES_II)
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default_dma_xfer_mask = ~0x00ffffff;
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else if (z->id == ZORRO_PROD_GVP_GFORCE_030_SCSI ||
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z->id == ZORRO_PROD_GVP_A530_SCSI ||
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z->id == ZORRO_PROD_GVP_COMBO_030_R4_SCSI)
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default_dma_xfer_mask = ~0x01ffffff;
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else if (z->id == ZORRO_PROD_GVP_A1291 ||
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z->id == ZORRO_PROD_GVP_GFORCE_040_SCSI_1)
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default_dma_xfer_mask = ~0x07ffffff;
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else
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continue;
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regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
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/*
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* Rumors state that some GVP ram boards use the same product
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* code as the SCSI controllers. Therefore if the board-size
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* is not 64KB we asume it is a ram board and bail out.
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*/
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if (z->resource.end - z->resource.start != 0xffff)
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continue;
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error = check_wd33c93(regs);
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if (error)
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goto fail_check_or_alloc;
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address = z->resource.start;
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if (!request_mem_region(address, 256, "wd33c93"))
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continue;
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regs = (struct gvp11_scsiregs *)(ZTWO_VADDR(address));
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if (check_wd33c93(regs))
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goto release;
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instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
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if (instance == NULL)
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goto release;
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instance->base = ZTWO_VADDR(address);
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instance->irq = IRQ_AMIGA_PORTS;
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instance->unique_id = z->slotaddr;
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hdata = shost_priv(instance);
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if (gvp11_xfer_mask)
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hdata->dma_xfer_mask = gvp11_xfer_mask;
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else
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hdata->dma_xfer_mask = default_dma_xfer_mask;
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regs->secret2 = 1;
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regs->secret1 = 0;
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regs->secret3 = 15;
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while (regs->CNTR & GVP11_DMAC_BUSY)
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;
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regs->CNTR = 0;
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regs->BANK = 0;
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epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
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/*
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* Check for 14MHz SCSI clock
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*/
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wdregs.SASR = ®s->SASR;
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wdregs.SCMD = ®s->SCMD;
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hdata->no_sync = 0xff;
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hdata->fast = 0;
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hdata->dma_mode = CTRL_DMA;
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wd33c93_init(instance, wdregs, dma_setup, dma_stop,
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(epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
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: WD33C93_FS_12_15);
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if (request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
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"GVP11 SCSI", instance))
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goto unregister;
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regs->CNTR = GVP11_DMAC_INT_ENABLE;
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num_gvp11++;
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continue;
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unregister:
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scsi_unregister(instance);
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release:
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release_mem_region(address, 256);
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instance = scsi_host_alloc(&gvp11_scsi_template,
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sizeof(struct WD33C93_hostdata));
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if (!instance) {
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error = -ENOMEM;
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goto fail_check_or_alloc;
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}
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return num_gvp11;
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instance->base = (unsigned long)regs;
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instance->irq = IRQ_AMIGA_PORTS;
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instance->unique_id = z->slotaddr;
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regs->secret2 = 1;
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regs->secret1 = 0;
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regs->secret3 = 15;
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while (regs->CNTR & GVP11_DMAC_BUSY)
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;
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regs->CNTR = 0;
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regs->BANK = 0;
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wdregs.SASR = ®s->SASR;
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wdregs.SCMD = ®s->SCMD;
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hdata = shost_priv(instance);
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if (gvp11_xfer_mask)
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hdata->dma_xfer_mask = gvp11_xfer_mask;
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else
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hdata->dma_xfer_mask = default_dma_xfer_mask;
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hdata->no_sync = 0xff;
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hdata->fast = 0;
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hdata->dma_mode = CTRL_DMA;
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/*
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* Check for 14MHz SCSI clock
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*/
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epc = *(unsigned short *)(ZTWO_VADDR(address) + 0x8000);
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wd33c93_init(instance, wdregs, dma_setup, dma_stop,
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(epc & GVP_SCSICLKMASK) ? WD33C93_FS_8_10
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: WD33C93_FS_12_15);
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error = request_irq(IRQ_AMIGA_PORTS, gvp11_intr, IRQF_SHARED,
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"GVP11 SCSI", instance);
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if (error)
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goto fail_irq;
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regs->CNTR = GVP11_DMAC_INT_ENABLE;
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error = scsi_add_host(instance, NULL);
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if (error)
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goto fail_host;
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zorro_set_drvdata(z, instance);
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scsi_scan_host(instance);
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return 0;
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fail_host:
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free_irq(IRQ_AMIGA_PORTS, instance);
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fail_irq:
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scsi_host_put(instance);
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fail_check_or_alloc:
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release_mem_region(address, 256);
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return error;
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}
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static int gvp11_bus_reset(struct scsi_cmnd *cmd)
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static void __devexit gvp11_remove(struct zorro_dev *z)
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{
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/* FIXME perform bus-specific reset */
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/* FIXME 2: shouldn't we no-op this function (return
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FAILED), and fall back to host reset function,
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wd33c93_host_reset ? */
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spin_lock_irq(cmd->device->host->host_lock);
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wd33c93_host_reset(cmd);
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spin_unlock_irq(cmd->device->host->host_lock);
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return SUCCESS;
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}
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#define HOSTS_C
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#include "gvp11.h"
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static struct scsi_host_template driver_template = {
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.proc_name = "GVP11",
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.name = "GVP Series II SCSI",
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.detect = gvp11_detect,
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.release = gvp11_release,
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.queuecommand = wd33c93_queuecommand,
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.eh_abort_handler = wd33c93_abort,
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.eh_bus_reset_handler = gvp11_bus_reset,
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.eh_host_reset_handler = wd33c93_host_reset,
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.can_queue = CAN_QUEUE,
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.this_id = 7,
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.sg_tablesize = SG_ALL,
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.cmd_per_lun = CMD_PER_LUN,
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.use_clustering = DISABLE_CLUSTERING
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};
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#include "scsi_module.c"
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int gvp11_release(struct Scsi_Host *instance)
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{
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#ifdef MODULE
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struct Scsi_Host *instance = zorro_get_drvdata(z);
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struct gvp11_scsiregs *regs = (struct gvp11_scsiregs *)(instance->base);
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regs->CNTR = 0;
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release_mem_region(ZTWO_PADDR(instance->base), 256);
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scsi_remove_host(instance);
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free_irq(IRQ_AMIGA_PORTS, instance);
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#endif
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return 1;
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scsi_host_put(instance);
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release_mem_region(z->resource.start, 256);
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}
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/*
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* This should (hopefully) be the correct way to identify
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* all the different GVP SCSI controllers (except for the
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* SERIES I though).
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*/
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static struct zorro_device_id gvp11_zorro_tbl[] __devinitdata = {
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{ ZORRO_PROD_GVP_COMBO_030_R3_SCSI, ~0x00ffffff },
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{ ZORRO_PROD_GVP_SERIES_II, ~0x00ffffff },
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{ ZORRO_PROD_GVP_GFORCE_030_SCSI, ~0x01ffffff },
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{ ZORRO_PROD_GVP_A530_SCSI, ~0x01ffffff },
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{ ZORRO_PROD_GVP_COMBO_030_R4_SCSI, ~0x01ffffff },
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{ ZORRO_PROD_GVP_A1291, ~0x07ffffff },
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{ ZORRO_PROD_GVP_GFORCE_040_SCSI_1, ~0x07ffffff },
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{ 0 }
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};
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MODULE_DEVICE_TABLE(zorro, gvp11_zorro_tbl);
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static struct zorro_driver gvp11_driver = {
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.name = "gvp11",
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.id_table = gvp11_zorro_tbl,
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.probe = gvp11_probe,
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.remove = __devexit_p(gvp11_remove),
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};
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static int __init gvp11_init(void)
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{
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return zorro_register_driver(&gvp11_driver);
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}
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module_init(gvp11_init);
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static void __exit gvp11_exit(void)
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{
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zorro_unregister_driver(&gvp11_driver);
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}
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module_exit(gvp11_exit);
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MODULE_DESCRIPTION("GVP Series II SCSI");
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MODULE_LICENSE("GPL");
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@ -11,9 +11,6 @@
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#include <linux/types.h>
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int gvp11_detect(struct scsi_host_template *);
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int gvp11_release(struct Scsi_Host *);
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#ifndef CMD_PER_LUN
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#define CMD_PER_LUN 2
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#endif
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@ -22,8 +19,6 @@ int gvp11_release(struct Scsi_Host *);
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#define CAN_QUEUE 16
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#endif
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#ifndef HOSTS_C
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/*
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* if the transfer address ANDed with this results in a non-zero
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* result, then we can't use DMA.
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@ -54,6 +49,4 @@ struct gvp11_scsiregs {
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#define GVP11_DMAC_INT_ENABLE (1<<3)
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#define GVP11_DMAC_DIR_WRITE (1<<4)
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#endif /* else def HOSTS_C */
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#endif /* GVP11_H */
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