diff --git a/arch/m68k/amiga/platform.c b/arch/m68k/amiga/platform.c index 38f18bf14737..df1fae3c3729 100644 --- a/arch/m68k/amiga/platform.c +++ b/arch/m68k/amiga/platform.c @@ -58,6 +58,13 @@ subsys_initcall(amiga_init_bus); #endif /* CONFIG_ZORRO */ +static const struct resource a3000_scsi_resource __initconst = { + .start = 0xdd0000, + .end = 0xdd00ff, + .flags = IORESOURCE_MEM, +}; + + static int __init amiga_init_devices(void) { if (!MACH_IS_AMIGA) @@ -77,6 +84,10 @@ static int __init amiga_init_devices(void) if (AMIGAHW_PRESENT(AMI_FLOPPY)) platform_device_register_simple("amiga-floppy", -1, NULL, 0); + if (AMIGAHW_PRESENT(A3000_SCSI)) + platform_device_register_simple("amiga-a3000-scsi", -1, + &a3000_scsi_resource, 1); + return 0; } diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c index 79a4a3c97474..7f09d89100a1 100644 --- a/drivers/scsi/a3000.c +++ b/drivers/scsi/a3000.c @@ -1,28 +1,21 @@ #include #include -#include -#include #include #include +#include #include #include +#include -#include #include #include #include #include -#include #include "scsi.h" -#include #include "wd33c93.h" #include "a3000.h" -#include - - -static int a3000_release(struct Scsi_Host *instance); static irqreturn_t a3000_intr(int irq, void *data) { @@ -39,7 +32,7 @@ static irqreturn_t a3000_intr(int irq, void *data) spin_unlock_irqrestore(instance->host_lock, flags); return IRQ_HANDLED; } - printk("Non-serviced A3000 SCSI-interrupt? ISTR = %02x\n", status); + pr_warning("Non-serviced A3000 SCSI-interrupt? ISTR = %02x\n", status); return IRQ_NONE; } @@ -162,71 +155,27 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, } } -static int __init a3000_detect(struct scsi_host_template *tpnt) -{ - struct Scsi_Host *instance; - wd33c93_regs wdregs; - struct a3000_scsiregs *regs; - struct WD33C93_hostdata *hdata; - - if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(A3000_SCSI)) - return 0; - if (!request_mem_region(0xDD0000, 256, "wd33c93")) - return 0; - - tpnt->proc_name = "A3000"; - tpnt->proc_info = &wd33c93_proc_info; - - instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata)); - if (instance == NULL) - goto fail_register; - - instance->base = ZTWO_VADDR(0xDD0000); - instance->irq = IRQ_AMIGA_PORTS; - regs = (struct a3000_scsiregs *)(instance->base); - regs->DAWR = DAWR_A3000; - wdregs.SASR = ®s->SASR; - wdregs.SCMD = ®s->SCMD; - hdata = shost_priv(instance); - hdata->no_sync = 0xff; - hdata->fast = 0; - hdata->dma_mode = CTRL_DMA; - wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_12_15); - if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI", - instance)) - goto fail_irq; - regs->CNTR = CNTR_PDMD | CNTR_INTEN; - - return 1; - -fail_irq: - scsi_unregister(instance); -fail_register: - release_mem_region(0xDD0000, 256); - return 0; -} - static int a3000_bus_reset(struct scsi_cmnd *cmd) { + struct Scsi_Host *instance = cmd->device->host; + /* FIXME perform bus-specific reset */ /* FIXME 2: kill this entire function, which should cause mid-layer to call wd33c93_host_reset anyway? */ - spin_lock_irq(cmd->device->host->host_lock); + spin_lock_irq(instance->host_lock); wd33c93_host_reset(cmd); - spin_unlock_irq(cmd->device->host->host_lock); + spin_unlock_irq(instance->host_lock); return SUCCESS; } -#define HOSTS_C - -static struct scsi_host_template driver_template = { - .proc_name = "A3000", +static struct scsi_host_template amiga_a3000_scsi_template = { + .module = THIS_MODULE, .name = "Amiga 3000 built-in SCSI", - .detect = a3000_detect, - .release = a3000_release, + .proc_info = wd33c93_proc_info, + .proc_name = "A3000", .queuecommand = wd33c93_queuecommand, .eh_abort_handler = wd33c93_abort, .eh_bus_reset_handler = a3000_bus_reset, @@ -238,17 +187,104 @@ static struct scsi_host_template driver_template = { .use_clustering = ENABLE_CLUSTERING }; - -#include "scsi_module.c" - -static int a3000_release(struct Scsi_Host *instance) +static int __init amiga_a3000_scsi_probe(struct platform_device *pdev) { - struct a3000_scsiregs *regs = (struct a3000_scsiregs *)(instance->base); + struct resource *res; + struct Scsi_Host *instance; + int error; + struct a3000_scsiregs *regs; + wd33c93_regs wdregs; + struct WD33C93_hostdata *hdata; - regs->CNTR = 0; - release_mem_region(0xDD0000, 256); - free_irq(IRQ_AMIGA_PORTS, a3000_intr); - return 1; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -ENODEV; + + if (!request_mem_region(res->start, resource_size(res), "wd33c93")) + return -EBUSY; + + instance = scsi_host_alloc(&amiga_a3000_scsi_template, + sizeof(struct WD33C93_hostdata)); + if (!instance) { + error = -ENOMEM; + goto fail_alloc; + } + + instance->base = ZTWO_VADDR(res->start); + instance->irq = IRQ_AMIGA_PORTS; + + regs = (struct a3000_scsiregs *)(instance->base); + regs->DAWR = DAWR_A3000; + + wdregs.SASR = ®s->SASR; + wdregs.SCMD = ®s->SCMD; + + hdata = shost_priv(instance); + hdata->no_sync = 0xff; + hdata->fast = 0; + hdata->dma_mode = CTRL_DMA; + + wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_12_15); + error = request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, + "A3000 SCSI", instance); + if (error) + goto fail_irq; + + regs->CNTR = CNTR_PDMD | CNTR_INTEN; + + error = scsi_add_host(instance, NULL); + if (error) + goto fail_host; + + platform_set_drvdata(pdev, instance); + + scsi_scan_host(instance); + return 0; + +fail_host: + free_irq(IRQ_AMIGA_PORTS, instance); +fail_irq: + scsi_host_put(instance); +fail_alloc: + release_mem_region(res->start, resource_size(res)); + return error; } +static int __exit amiga_a3000_scsi_remove(struct platform_device *pdev) +{ + struct Scsi_Host *instance = platform_get_drvdata(pdev); + struct a3000_scsiregs *regs = (struct a3000_scsiregs *)(instance->base); + struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + regs->CNTR = 0; + scsi_remove_host(instance); + free_irq(IRQ_AMIGA_PORTS, instance); + scsi_host_put(instance); + release_mem_region(res->start, resource_size(res)); + return 0; +} + +static struct platform_driver amiga_a3000_scsi_driver = { + .remove = __exit_p(amiga_a3000_scsi_remove), + .driver = { + .name = "amiga-a3000-scsi", + .owner = THIS_MODULE, + }, +}; + +static int __init amiga_a3000_scsi_init(void) +{ + return platform_driver_probe(&amiga_a3000_scsi_driver, + amiga_a3000_scsi_probe); +} +module_init(amiga_a3000_scsi_init); + +static void __exit amiga_a3000_scsi_exit(void) +{ + platform_driver_unregister(&amiga_a3000_scsi_driver); +} +module_exit(amiga_a3000_scsi_exit); + +MODULE_DESCRIPTION("Amiga 3000 built-in SCSI"); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:amiga-a3000-scsi");