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path: root/drivers/net/mac8390.c
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Diffstat (limited to 'drivers/net/mac8390.c')
-rw-r--r--drivers/net/mac8390.c229
1 files changed, 122 insertions, 107 deletions
diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c
index 8bd09e280c9..8f168893caa 100644
--- a/drivers/net/mac8390.c
+++ b/drivers/net/mac8390.c
@@ -36,9 +36,9 @@
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
+#include <linux/io.h>
#include <asm/system.h>
-#include <asm/io.h>
#include <asm/dma.h>
#include <asm/hwtest.h>
#include <asm/macints.h>
@@ -47,20 +47,25 @@ static char version[] =
"v0.4 2001-05-15 David Huggins-Daines <dhd@debian.org> and others\n";
#define EI_SHIFT(x) (ei_local->reg_offset[x])
-#define ei_inb(port) in_8(port)
-#define ei_outb(val,port) out_8(port,val)
-#define ei_inb_p(port) in_8(port)
-#define ei_outb_p(val,port) out_8(port,val)
+#define ei_inb(port) in_8(port)
+#define ei_outb(val, port) out_8(port, val)
+#define ei_inb_p(port) in_8(port)
+#define ei_outb_p(val, port) out_8(port, val)
#include "lib8390.c"
#define WD_START_PG 0x00 /* First page of TX buffer */
#define CABLETRON_RX_START_PG 0x00 /* First page of RX buffer */
#define CABLETRON_RX_STOP_PG 0x30 /* Last page +1 of RX ring */
-#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG /* First page of TX buffer */
+#define CABLETRON_TX_START_PG CABLETRON_RX_STOP_PG
+ /* First page of TX buffer */
-/* Unfortunately it seems we have to hardcode these for the moment */
-/* Shouldn't the card know about this? Does anyone know where to read it off the card? Do we trust the data provided by the card? */
+/*
+ * Unfortunately it seems we have to hardcode these for the moment
+ * Shouldn't the card know about this?
+ * Does anyone know where to read it off the card?
+ * Do we trust the data provided by the card?
+ */
#define DAYNA_8390_BASE 0x80000
#define DAYNA_8390_MEM 0x00000
@@ -82,7 +87,7 @@ enum mac8390_type {
MAC8390_KINETICS,
};
-static const char * cardname[] = {
+static const char *cardname[] = {
"apple",
"asante",
"farallon",
@@ -92,7 +97,7 @@ static const char * cardname[] = {
"kinetics",
};
-static int word16[] = {
+static const int word16[] = {
1, /* apple */
1, /* asante */
1, /* farallon */
@@ -103,7 +108,7 @@ static int word16[] = {
};
/* on which cards do we use NuBus resources? */
-static int useresources[] = {
+static const int useresources[] = {
1, /* apple */
1, /* asante */
1, /* farallon */
@@ -119,22 +124,22 @@ enum mac8390_access {
ACCESS_16,
};
-extern int mac8390_memtest(struct net_device * dev);
-static int mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
+extern int mac8390_memtest(struct net_device *dev);
+static int mac8390_initdev(struct net_device *dev, struct nubus_dev *ndev,
enum mac8390_type type);
-static int mac8390_open(struct net_device * dev);
-static int mac8390_close(struct net_device * dev);
+static int mac8390_open(struct net_device *dev);
+static int mac8390_close(struct net_device *dev);
static void mac8390_no_reset(struct net_device *dev);
static void interlan_reset(struct net_device *dev);
/* Sane (32-bit chunk memory read/write) - Some Farallon and Apple do this*/
static void sane_get_8390_hdr(struct net_device *dev,
struct e8390_pkt_hdr *hdr, int ring_page);
-static void sane_block_input(struct net_device * dev, int count,
- struct sk_buff * skb, int ring_offset);
-static void sane_block_output(struct net_device * dev, int count,
- const unsigned char * buf, const int start_page);
+static void sane_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset);
+static void sane_block_output(struct net_device *dev, int count,
+ const unsigned char *buf, const int start_page);
/* dayna_memcpy to and from card */
static void dayna_memcpy_fromcard(struct net_device *dev, void *to,
@@ -150,8 +155,8 @@ static void dayna_block_input(struct net_device *dev, int count,
static void dayna_block_output(struct net_device *dev, int count,
const unsigned char *buf, int start_page);
-#define memcpy_fromio(a,b,c) memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c) memcpy((void *)(a),(b),(c))
+#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
+#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
/* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
static void slow_sane_get_8390_hdr(struct net_device *dev,
@@ -222,10 +227,12 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
break;
case NUBUS_DRSW_DAYNA:
- // These correspond to Dayna Sonic cards
- // which use the macsonic driver
+ /*
+ * These correspond to Dayna Sonic cards
+ * which use the macsonic driver
+ */
if (dev->dr_hw == NUBUS_DRHW_SMC9194 ||
- dev->dr_hw == NUBUS_DRHW_INTERLAN )
+ dev->dr_hw == NUBUS_DRHW_INTERLAN)
return MAC8390_NONE;
else
return MAC8390_DAYNA;
@@ -260,7 +267,7 @@ static int __init mac8390_memsize(unsigned long membase)
local_irq_save(flags);
/* Check up to 32K in 4K increments */
for (i = 0; i < 8; i++) {
- volatile unsigned short *m = (unsigned short *) (membase + (i * 0x1000));
+ volatile unsigned short *m = (unsigned short *)(membase + (i * 0x1000));
/* Unwriteable - we have a fully decoded card and the
RAM end located */
@@ -275,22 +282,24 @@ static int __init mac8390_memsize(unsigned long membase)
/* check for partial decode and wrap */
for (j = 0; j < i; j++) {
- volatile unsigned short *p = (unsigned short *) (membase + (j * 0x1000));
+ volatile unsigned short *p = (unsigned short *)(membase + (j * 0x1000));
if (*p != (0xA5A0 | j))
break;
- }
- }
+ }
+ }
local_irq_restore(flags);
- /* in any case, we stopped once we tried one block too many,
- or once we reached 32K */
- return i * 0x1000;
+ /*
+ * in any case, we stopped once we tried one block too many,
+ * or once we reached 32K
+ */
+ return i * 0x1000;
}
struct net_device * __init mac8390_probe(int unit)
{
struct net_device *dev;
volatile unsigned short *i;
- struct nubus_dev * ndev = NULL;
+ struct nubus_dev *ndev = NULL;
int err = -ENODEV;
struct nubus_dir dir;
@@ -312,20 +321,23 @@ struct net_device * __init mac8390_probe(int unit)
if (unit >= 0)
sprintf(dev->name, "eth%d", unit);
- while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET, ndev))) {
+ while ((ndev = nubus_find_type(NUBUS_CAT_NETWORK, NUBUS_TYPE_ETHERNET,
+ ndev))) {
/* Have we seen it already? */
if (slots & (1<<ndev->board->slot))
continue;
slots |= 1<<ndev->board->slot;
- if ((cardtype = mac8390_ident(ndev)) == MAC8390_NONE)
+ cardtype = mac8390_ident(ndev);
+ if (cardtype == MAC8390_NONE)
continue;
printk_once(KERN_INFO pr_fmt(version));
dev->irq = SLOT2IRQ(ndev->board->slot);
/* This is getting to be a habit */
- dev->base_addr = ndev->board->slot_addr | ((ndev->board->slot&0xf) << 20);
+ dev->base_addr = (ndev->board->slot_addr |
+ ((ndev->board->slot & 0xf) << 20));
/* Get some Nubus info - we will trust the card's idea
of where its memory and registers are. */
@@ -337,7 +349,7 @@ struct net_device * __init mac8390_probe(int unit)
}
/* Get the MAC address */
- if ((nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent)) == -1) {
+ if (nubus_find_rsrc(&dir, NUBUS_RESID_MAC_ADDRESS, &ent) == -1) {
pr_info("%s: Couldn't get MAC address!\n", dev->name);
continue;
} else {
@@ -346,7 +358,8 @@ struct net_device * __init mac8390_probe(int unit)
if (useresources[cardtype] == 1) {
nubus_rewinddir(&dir);
- if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS, &ent) == -1) {
+ if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_BASEOS,
+ &ent) == -1) {
pr_err("%s: Memory offset resource for slot %X not found!\n",
dev->name, ndev->board->slot);
continue;
@@ -356,7 +369,8 @@ struct net_device * __init mac8390_probe(int unit)
/* yes, this is how the Apple driver does it */
dev->base_addr = dev->mem_start + 0x10000;
nubus_rewinddir(&dir);
- if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH, &ent) == -1) {
+ if (nubus_find_rsrc(&dir, NUBUS_RESID_MINOR_LENGTH,
+ &ent) == -1) {
pr_info("%s: Memory length resource for slot %X not found, probing\n",
dev->name, ndev->board->slot);
offset = mac8390_memsize(dev->mem_start);
@@ -485,22 +499,23 @@ static const struct net_device_ops mac8390_netdev_ops = {
#endif
};
-static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * ndev,
- enum mac8390_type type)
+static int __init mac8390_initdev(struct net_device *dev,
+ struct nubus_dev *ndev,
+ enum mac8390_type type)
{
- static u32 fwrd4_offsets[16]={
+ static u32 fwrd4_offsets[16] = {
0, 4, 8, 12,
16, 20, 24, 28,
32, 36, 40, 44,
48, 52, 56, 60
};
- static u32 back4_offsets[16]={
+ static u32 back4_offsets[16] = {
60, 56, 52, 48,
44, 40, 36, 32,
28, 24, 20, 16,
12, 8, 4, 0
};
- static u32 fwrd2_offsets[16]={
+ static u32 fwrd2_offsets[16] = {
0, 2, 4, 6,
8, 10, 12, 14,
16, 18, 20, 22,
@@ -518,17 +533,17 @@ static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * nd
/* Cabletron's TX/RX buffers are backwards */
if (type == MAC8390_CABLETRON) {
- ei_status.tx_start_page = CABLETRON_TX_START_PG;
- ei_status.rx_start_page = CABLETRON_RX_START_PG;
- ei_status.stop_page = CABLETRON_RX_STOP_PG;
- ei_status.rmem_start = dev->mem_start;
- ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
+ ei_status.tx_start_page = CABLETRON_TX_START_PG;
+ ei_status.rx_start_page = CABLETRON_RX_START_PG;
+ ei_status.stop_page = CABLETRON_RX_STOP_PG;
+ ei_status.rmem_start = dev->mem_start;
+ ei_status.rmem_end = dev->mem_start + CABLETRON_RX_STOP_PG*256;
} else {
- ei_status.tx_start_page = WD_START_PG;
- ei_status.rx_start_page = WD_START_PG + TX_PAGES;
- ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
- ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
- ei_status.rmem_end = dev->mem_end;
+ ei_status.tx_start_page = WD_START_PG;
+ ei_status.rx_start_page = WD_START_PG + TX_PAGES;
+ ei_status.stop_page = (dev->mem_end - dev->mem_start)/256;
+ ei_status.rmem_start = dev->mem_start + TX_PAGES*256;
+ ei_status.rmem_end = dev->mem_end;
}
/* Fill in model-specific information and functions */
@@ -600,8 +615,8 @@ static int __init mac8390_initdev(struct net_device * dev, struct nubus_dev * nd
ei_status.block_input = &slow_sane_block_input;
ei_status.block_output = &slow_sane_block_output;
ei_status.get_8390_hdr = &slow_sane_get_8390_hdr;
- ei_status.reg_offset = fwrd4_offsets;
- break;
+ ei_status.reg_offset = fwrd4_offsets;
+ break;
default:
pr_err("Card type %s is unsupported, sorry\n",
@@ -649,7 +664,7 @@ static void mac8390_no_reset(struct net_device *dev)
static void interlan_reset(struct net_device *dev)
{
- unsigned char *target=nubus_slot_addr(IRQ2SLOT(dev->irq));
+ unsigned char *target = nubus_slot_addr(IRQ2SLOT(dev->irq));
if (ei_debug > 1)
pr_info("Need to reset the NS8390 t=%lu...", jiffies);
ei_status.txing = 0;
@@ -661,54 +676,53 @@ static void interlan_reset(struct net_device *dev)
/* dayna_memcpy_fromio/dayna_memcpy_toio */
/* directly from daynaport.c by Alan Cox */
-static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
+static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from,
+ int count)
{
volatile unsigned char *ptr;
- unsigned char *target=to;
- from<<=1; /* word, skip overhead */
- ptr=(unsigned char *)(dev->mem_start+from);
+ unsigned char *target = to;
+ from <<= 1; /* word, skip overhead */
+ ptr = (unsigned char *)(dev->mem_start+from);
/* Leading byte? */
- if (from&2) {
+ if (from & 2) {
*target++ = ptr[-1];
ptr += 2;
count--;
}
- while(count>=2)
- {
+ while (count >= 2) {
*(unsigned short *)target = *(unsigned short volatile *)ptr;
ptr += 4; /* skip cruft */
target += 2;
- count-=2;
+ count -= 2;
}
/* Trailing byte? */
- if(count)
+ if (count)
*target = *ptr;
}
-static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
+static void dayna_memcpy_tocard(struct net_device *dev, int to,
+ const void *from, int count)
{
volatile unsigned short *ptr;
- const unsigned char *src=from;
- to<<=1; /* word, skip overhead */
- ptr=(unsigned short *)(dev->mem_start+to);
+ const unsigned char *src = from;
+ to <<= 1; /* word, skip overhead */
+ ptr = (unsigned short *)(dev->mem_start+to);
/* Leading byte? */
- if (to&2) { /* avoid a byte write (stomps on other data) */
+ if (to & 2) { /* avoid a byte write (stomps on other data) */
ptr[-1] = (ptr[-1]&0xFF00)|*src++;
ptr++;
count--;
}
- while(count>=2)
- {
- *ptr++=*(unsigned short *)src; /* Copy and */
+ while (count >= 2) {
+ *ptr++ = *(unsigned short *)src; /* Copy and */
ptr++; /* skip cruft */
src += 2;
- count-=2;
+ count -= 2;
}
/* Trailing byte? */
- if(count)
- {
+ if (count) {
/* card doesn't like byte writes */
- *ptr=(*ptr&0x00FF)|(*src << 8);
+ *ptr = (*ptr & 0x00FF) | (*src << 8);
}
}
@@ -731,11 +745,14 @@ static void sane_block_input(struct net_device *dev, int count,
if (xfer_start + count > ei_status.rmem_end) {
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
- memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, semi_count);
+ memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base,
+ semi_count);
count -= semi_count;
- memcpy_toio(skb->data + semi_count, (char *)ei_status.rmem_start, count);
+ memcpy_toio(skb->data + semi_count,
+ (char *)ei_status.rmem_start, count);
} else {
- memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base, count);
+ memcpy_fromio(skb->data, (char *)dev->mem_start + xfer_base,
+ count);
}
}
@@ -748,16 +765,18 @@ static void sane_block_output(struct net_device *dev, int count,
}
/* dayna block input/output */
-static void dayna_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
+static void dayna_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr, int ring_page)
{
unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
dayna_memcpy_fromcard(dev, hdr, hdr_start, 4);
/* Fix endianness */
- hdr->count=(hdr->count&0xFF)<<8|(hdr->count>>8);
+ hdr->count = (hdr->count & 0xFF) << 8 | (hdr->count >> 8);
}
-static void dayna_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
+static void dayna_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset)
{
unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
unsigned long xfer_start = xfer_base+dev->mem_start;
@@ -765,8 +784,7 @@ static void dayna_block_input(struct net_device *dev, int count, struct sk_buff
/* Note the offset math is done in card memory space which is word
per long onto our space. */
- if (xfer_start + count > ei_status.rmem_end)
- {
+ if (xfer_start + count > ei_status.rmem_end) {
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
dayna_memcpy_fromcard(dev, skb->data, xfer_base, semi_count);
@@ -774,15 +792,14 @@ static void dayna_block_input(struct net_device *dev, int count, struct sk_buff
dayna_memcpy_fromcard(dev, skb->data + semi_count,
ei_status.rmem_start - dev->mem_start,
count);
- }
- else
- {
+ } else {
dayna_memcpy_fromcard(dev, skb->data, xfer_base, count);
}
}
-static void dayna_block_output(struct net_device *dev, int count, const unsigned char *buf,
- int start_page)
+static void dayna_block_output(struct net_device *dev, int count,
+ const unsigned char *buf,
+ int start_page)
{
long shmem = (start_page - WD_START_PG)<<8;
@@ -790,8 +807,9 @@ static void dayna_block_output(struct net_device *dev, int count, const unsigned
}
/* Cabletron block I/O */
-static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
- int ring_page)
+static void slow_sane_get_8390_hdr(struct net_device *dev,
+ struct e8390_pkt_hdr *hdr,
+ int ring_page)
{
unsigned long hdr_start = (ring_page - WD_START_PG)<<8;
word_memcpy_fromcard(hdr, (char *)dev->mem_start + hdr_start, 4);
@@ -799,14 +817,13 @@ static void slow_sane_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr
hdr->count = (hdr->count&0xFF)<<8|(hdr->count>>8);
}
-static void slow_sane_block_input(struct net_device *dev, int count, struct sk_buff *skb,
- int ring_offset)
+static void slow_sane_block_input(struct net_device *dev, int count,
+ struct sk_buff *skb, int ring_offset)
{
unsigned long xfer_base = ring_offset - (WD_START_PG<<8);
unsigned long xfer_start = xfer_base+dev->mem_start;
- if (xfer_start + count > ei_status.rmem_end)
- {
+ if (xfer_start + count > ei_status.rmem_end) {
/* We must wrap the input move. */
int semi_count = ei_status.rmem_end - xfer_start;
word_memcpy_fromcard(skb->data,
@@ -815,16 +832,14 @@ static void slow_sane_block_input(struct net_device *dev, int count, struct sk_b
count -= semi_count;
word_memcpy_fromcard(skb->data + semi_count,
(char *)ei_status.rmem_start, count);
- }
- else
- {
+ } else {
word_memcpy_fromcard(skb->data,
(char *)dev->mem_start + xfer_base, count);
}
}
-static void slow_sane_block_output(struct net_device *dev, int count, const unsigned char *buf,
- int start_page)
+static void slow_sane_block_output(struct net_device *dev, int count,
+ const unsigned char *buf, int start_page)
{
long shmem = (start_page - WD_START_PG)<<8;
@@ -837,10 +852,10 @@ static void word_memcpy_tocard(void *tp, const void *fp, int count)
const unsigned short *from = fp;
count++;
- count/=2;
+ count /= 2;
- while(count--)
- *to++=*from++;
+ while (count--)
+ *to++ = *from++;
}
static void word_memcpy_fromcard(void *tp, const void *fp, int count)
@@ -849,10 +864,10 @@ static void word_memcpy_fromcard(void *tp, const void *fp, int count)
const volatile unsigned short *from = fp;
count++;
- count/=2;
+ count /= 2;
- while(count--)
- *to++=*from++;
+ while (count--)
+ *to++ = *from++;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 21:13:17 +0000