From b61bacbc2bf5df11f227bd9bd97b3bace4dc9108 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Mon, 10 Oct 2016 00:46:52 -0400 Subject: scsi: g_NCR5380: Merge g_NCR5380 and g_NCR5380_mmio drivers Merge the port-mapped IO and memory-mapped IO support (with the help of ioport_map) into the g_NCR5380 module and delete g_NCR5380_mmio. Signed-off-by: Ondrej Zary Signed-off-by: Finn Thain Reviewed-by: Hannes Reinecke Tested-by: Ondrej Zary Signed-off-by: Martin K. Petersen --- drivers/scsi/g_NCR5380.c | 252 ++++++++++++++++++++++------------------------- 1 file changed, 120 insertions(+), 132 deletions(-) (limited to 'drivers/scsi/g_NCR5380.c') diff --git a/drivers/scsi/g_NCR5380.c b/drivers/scsi/g_NCR5380.c index cbf010324c18..4d7a9de01645 100644 --- a/drivers/scsi/g_NCR5380.c +++ b/drivers/scsi/g_NCR5380.c @@ -64,9 +64,9 @@ static int card[] = { -1, -1, -1, -1, -1, -1, -1, -1 }; module_param_array(card, int, NULL, 0); MODULE_PARM_DESC(card, "card type (0=NCR5380, 1=NCR53C400, 2=NCR53C400A, 3=DTC3181E, 4=HP C2502)"); +MODULE_ALIAS("g_NCR5380_mmio"); MODULE_LICENSE("GPL"); -#ifndef SCSI_G_NCR5380_MEM /* * Configure I/O address of 53C400A or DTC436 by writing magic numbers * to ports 0x779 and 0x379. @@ -88,40 +88,35 @@ static void magic_configure(int idx, u8 irq, u8 magic[]) cfg = 0x80 | idx | (irq << 4); outb(cfg, 0x379); } -#endif + +static unsigned int ncr_53c400a_ports[] = { + 0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0 +}; +static unsigned int dtc_3181e_ports[] = { + 0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0 +}; +static u8 ncr_53c400a_magic[] = { /* 53C400A & DTC436 */ + 0x59, 0xb9, 0xc5, 0xae, 0xa6 +}; +static u8 hp_c2502_magic[] = { /* HP C2502 */ + 0x0f, 0x22, 0xf0, 0x20, 0x80 +}; static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, struct device *pdev, int base, int irq, int board) { - unsigned int *ports; + bool is_pmio = base <= 0xffff; + int ret; + int flags = 0; + unsigned int *ports = NULL; u8 *magic = NULL; -#ifndef SCSI_G_NCR5380_MEM int i; int port_idx = -1; unsigned long region_size; -#endif - static unsigned int ncr_53c400a_ports[] = { - 0x280, 0x290, 0x300, 0x310, 0x330, 0x340, 0x348, 0x350, 0 - }; - static unsigned int dtc_3181e_ports[] = { - 0x220, 0x240, 0x280, 0x2a0, 0x2c0, 0x300, 0x320, 0x340, 0 - }; - static u8 ncr_53c400a_magic[] = { /* 53C400A & DTC436 */ - 0x59, 0xb9, 0xc5, 0xae, 0xa6 - }; - static u8 hp_c2502_magic[] = { /* HP C2502 */ - 0x0f, 0x22, 0xf0, 0x20, 0x80 - }; - int flags, ret; struct Scsi_Host *instance; struct NCR5380_hostdata *hostdata; -#ifdef SCSI_G_NCR5380_MEM void __iomem *iomem; - resource_size_t iomem_size; -#endif - ports = NULL; - flags = 0; switch (board) { case BOARD_NCR5380: flags = FLAG_NO_PSEUDO_DMA | FLAG_DMA_FIXUP; @@ -140,8 +135,7 @@ static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, break; } -#ifndef SCSI_G_NCR5380_MEM - if (ports && magic) { + if (is_pmio && ports && magic) { /* wakeup sequence for the NCR53C400A and DTC3181E */ /* Disable the adapter and look for a free io port */ @@ -179,75 +173,81 @@ static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, port_idx = i; } else return -EINVAL; - } - else - { + } else if (is_pmio) { /* NCR5380 - no configuration, just grab */ region_size = 8; if (!base || !request_region(base, region_size, "ncr5380")) return -EBUSY; + } else { /* MMIO */ + region_size = NCR53C400_region_size; + if (!request_mem_region(base, region_size, "ncr5380")) + return -EBUSY; } -#else - iomem_size = NCR53C400_region_size; - if (!request_mem_region(base, iomem_size, "ncr5380")) - return -EBUSY; - iomem = ioremap(base, iomem_size); + + if (is_pmio) + iomem = ioport_map(base, region_size); + else + iomem = ioremap(base, region_size); + if (!iomem) { - release_mem_region(base, iomem_size); - return -ENOMEM; + ret = -ENOMEM; + goto out_release; } -#endif + instance = scsi_host_alloc(tpnt, sizeof(struct NCR5380_hostdata)); if (instance == NULL) { ret = -ENOMEM; - goto out_release; + goto out_unmap; } hostdata = shost_priv(instance); -#ifndef SCSI_G_NCR5380_MEM - instance->io_port = base; - instance->n_io_port = region_size; - hostdata->io_width = 1; /* 8-bit PDMA by default */ - - /* - * On NCR53C400 boards, NCR5380 registers are mapped 8 past - * the base address. - */ - switch (board) { - case BOARD_NCR53C400: - instance->io_port += 8; - hostdata->c400_ctl_status = 0; - hostdata->c400_blk_cnt = 1; - hostdata->c400_host_buf = 4; - break; - case BOARD_DTC3181E: - hostdata->io_width = 2; /* 16-bit PDMA */ - /* fall through */ - case BOARD_NCR53C400A: - case BOARD_HP_C2502: - hostdata->c400_ctl_status = 9; - hostdata->c400_blk_cnt = 10; - hostdata->c400_host_buf = 8; - break; - } -#else - instance->base = base; hostdata->iomem = iomem; - hostdata->iomem_size = iomem_size; - switch (board) { - case BOARD_NCR53C400: - hostdata->c400_ctl_status = 0x100; - hostdata->c400_blk_cnt = 0x101; - hostdata->c400_host_buf = 0x104; - break; - case BOARD_DTC3181E: - case BOARD_NCR53C400A: - case BOARD_HP_C2502: - pr_err(DRV_MODULE_NAME ": unknown register offsets\n"); - ret = -EINVAL; - goto out_unregister; + + if (is_pmio) { + instance->io_port = base; + instance->n_io_port = region_size; + hostdata->io_width = 1; /* 8-bit PDMA by default */ + hostdata->offset = 0; + + /* + * On NCR53C400 boards, NCR5380 registers are mapped 8 past + * the base address. + */ + switch (board) { + case BOARD_NCR53C400: + instance->io_port += 8; + hostdata->c400_ctl_status = 0; + hostdata->c400_blk_cnt = 1; + hostdata->c400_host_buf = 4; + break; + case BOARD_DTC3181E: + hostdata->io_width = 2; /* 16-bit PDMA */ + /* fall through */ + case BOARD_NCR53C400A: + case BOARD_HP_C2502: + hostdata->c400_ctl_status = 9; + hostdata->c400_blk_cnt = 10; + hostdata->c400_host_buf = 8; + break; + } + } else { + instance->base = base; + hostdata->iomem_size = region_size; + hostdata->offset = NCR53C400_mem_base; + switch (board) { + case BOARD_NCR53C400: + hostdata->c400_ctl_status = 0x100; + hostdata->c400_blk_cnt = 0x101; + hostdata->c400_host_buf = 0x104; + break; + case BOARD_DTC3181E: + case BOARD_NCR53C400A: + case BOARD_HP_C2502: + pr_err(DRV_MODULE_NAME ": unknown register offsets\n"); + ret = -EINVAL; + goto out_unregister; + } } -#endif ret = NCR5380_init(instance, flags | FLAG_LATE_DMA_SETUP); if (ret) @@ -273,11 +273,9 @@ static int generic_NCR5380_init_one(struct scsi_host_template *tpnt, instance->irq = NO_IRQ; if (instance->irq != NO_IRQ) { -#ifndef SCSI_G_NCR5380_MEM /* set IRQ for HP C2502 */ if (board == BOARD_HP_C2502) magic_configure(port_idx, instance->irq, magic); -#endif if (request_irq(instance->irq, generic_NCR5380_intr, 0, "NCR5380", instance)) { printk(KERN_WARNING "scsi%d : IRQ%d not free, interrupts disabled\n", instance->host_no, instance->irq); @@ -303,32 +301,29 @@ out_free_irq: NCR5380_exit(instance); out_unregister: scsi_host_put(instance); -out_release: -#ifndef SCSI_G_NCR5380_MEM - release_region(base, region_size); -#else +out_unmap: iounmap(iomem); - release_mem_region(base, iomem_size); -#endif +out_release: + if (is_pmio) + release_region(base, region_size); + else + release_mem_region(base, region_size); return ret; } static void generic_NCR5380_release_resources(struct Scsi_Host *instance) { + struct NCR5380_hostdata *hostdata = shost_priv(instance); + scsi_remove_host(instance); if (instance->irq != NO_IRQ) free_irq(instance->irq, instance); NCR5380_exit(instance); -#ifndef SCSI_G_NCR5380_MEM - release_region(instance->io_port, instance->n_io_port); -#else - { - struct NCR5380_hostdata *hostdata = shost_priv(instance); - - iounmap(hostdata->iomem); + iounmap(hostdata->iomem); + if (instance->io_port) + release_region(instance->io_port, instance->n_io_port); + else release_mem_region(instance->base, hostdata->iomem_size); - } -#endif scsi_host_put(instance); } @@ -361,18 +356,16 @@ static inline int generic_NCR5380_pread(struct Scsi_Host *instance, while (NCR5380_read(hostdata->c400_ctl_status) & CSR_HOST_BUF_NOT_RDY) ; /* FIXME - no timeout */ -#ifndef SCSI_G_NCR5380_MEM - if (hostdata->io_width == 2) + if (instance->io_port && hostdata->io_width == 2) insw(instance->io_port + hostdata->c400_host_buf, dst + start, 64); - else + else if (instance->io_port) insb(instance->io_port + hostdata->c400_host_buf, dst + start, 128); -#else - /* implies SCSI_G_NCR5380_MEM */ - memcpy_fromio(dst + start, - hostdata->iomem + NCR53C400_host_buffer, 128); -#endif + else + memcpy_fromio(dst + start, + hostdata->iomem + NCR53C400_host_buffer, 128); + start += 128; blocks--; } @@ -381,18 +374,16 @@ static inline int generic_NCR5380_pread(struct Scsi_Host *instance, while (NCR5380_read(hostdata->c400_ctl_status) & CSR_HOST_BUF_NOT_RDY) ; /* FIXME - no timeout */ -#ifndef SCSI_G_NCR5380_MEM - if (hostdata->io_width == 2) + if (instance->io_port && hostdata->io_width == 2) insw(instance->io_port + hostdata->c400_host_buf, dst + start, 64); - else + else if (instance->io_port) insb(instance->io_port + hostdata->c400_host_buf, dst + start, 128); -#else - /* implies SCSI_G_NCR5380_MEM */ - memcpy_fromio(dst + start, - hostdata->iomem + NCR53C400_host_buffer, 128); -#endif + else + memcpy_fromio(dst + start, + hostdata->iomem + NCR53C400_host_buffer, 128); + start += 128; blocks--; } @@ -439,18 +430,17 @@ static inline int generic_NCR5380_pwrite(struct Scsi_Host *instance, break; while (NCR5380_read(hostdata->c400_ctl_status) & CSR_HOST_BUF_NOT_RDY) ; // FIXME - timeout -#ifndef SCSI_G_NCR5380_MEM - if (hostdata->io_width == 2) + + if (instance->io_port && hostdata->io_width == 2) outsw(instance->io_port + hostdata->c400_host_buf, src + start, 64); - else + else if (instance->io_port) outsb(instance->io_port + hostdata->c400_host_buf, src + start, 128); -#else - /* implies SCSI_G_NCR5380_MEM */ - memcpy_toio(hostdata->iomem + NCR53C400_host_buffer, - src + start, 128); -#endif + else + memcpy_toio(hostdata->iomem + NCR53C400_host_buffer, + src + start, 128); + start += 128; blocks--; } @@ -458,18 +448,16 @@ static inline int generic_NCR5380_pwrite(struct Scsi_Host *instance, while (NCR5380_read(hostdata->c400_ctl_status) & CSR_HOST_BUF_NOT_RDY) ; // FIXME - no timeout -#ifndef SCSI_G_NCR5380_MEM - if (hostdata->io_width == 2) + if (instance->io_port && hostdata->io_width == 2) outsw(instance->io_port + hostdata->c400_host_buf, src + start, 64); - else + else if (instance->io_port) outsb(instance->io_port + hostdata->c400_host_buf, src + start, 128); -#else - /* implies SCSI_G_NCR5380_MEM */ - memcpy_toio(hostdata->iomem + NCR53C400_host_buffer, - src + start, 128); -#endif + else + memcpy_toio(hostdata->iomem + NCR53C400_host_buffer, + src + start, 128); + start += 128; blocks--; } @@ -566,7 +554,7 @@ static struct isa_driver generic_NCR5380_isa_driver = { }, }; -#if !defined(SCSI_G_NCR5380_MEM) && defined(CONFIG_PNP) +#ifdef CONFIG_PNP static struct pnp_device_id generic_NCR5380_pnp_ids[] = { { .id = "DTC436e", .driver_data = BOARD_DTC3181E }, { .id = "" } @@ -600,7 +588,7 @@ static struct pnp_driver generic_NCR5380_pnp_driver = { .probe = generic_NCR5380_pnp_probe, .remove = generic_NCR5380_pnp_remove, }; -#endif /* !defined(SCSI_G_NCR5380_MEM) && defined(CONFIG_PNP) */ +#endif /* defined(CONFIG_PNP) */ static int pnp_registered, isa_registered; @@ -624,7 +612,7 @@ static int __init generic_NCR5380_init(void) card[0] = BOARD_HP_C2502; } -#if !defined(SCSI_G_NCR5380_MEM) && defined(CONFIG_PNP) +#ifdef CONFIG_PNP if (!pnp_register_driver(&generic_NCR5380_pnp_driver)) pnp_registered = 1; #endif @@ -637,7 +625,7 @@ static int __init generic_NCR5380_init(void) static void __exit generic_NCR5380_exit(void) { -#if !defined(SCSI_G_NCR5380_MEM) && defined(CONFIG_PNP) +#ifdef CONFIG_PNP if (pnp_registered) pnp_unregister_driver(&generic_NCR5380_pnp_driver); #endif -- cgit v1.2.3