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path: root/drivers/scsi/g_NCR5380.c
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Diffstat (limited to 'drivers/scsi/g_NCR5380.c')
-rw-r--r--drivers/scsi/g_NCR5380.c252
1 files changed, 120 insertions, 132 deletions
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
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 06:31:55 +0000