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path: root/drivers/net/arcnet/arc-rimi.c
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Diffstat (limited to 'drivers/net/arcnet/arc-rimi.c')
-rw-r--r--drivers/net/arcnet/arc-rimi.c145
1 files changed, 64 insertions, 81 deletions
diff --git a/drivers/net/arcnet/arc-rimi.c b/drivers/net/arcnet/arc-rimi.c
index b8b4c7ba884f..a07e24970be4 100644
--- a/drivers/net/arcnet/arc-rimi.c
+++ b/drivers/net/arcnet/arc-rimi.c
@@ -1,6 +1,6 @@
/*
* Linux ARCnet driver - "RIM I" (entirely mem-mapped) cards
- *
+ *
* Written 1994-1999 by Avery Pennarun.
* Written 1999-2000 by Martin Mares <mj@ucw.cz>.
* Derived from skeleton.c by Donald Becker.
@@ -24,6 +24,9 @@
*
* **********************
*/
+
+#define pr_fmt(fmt) "arcnet:" KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
@@ -33,12 +36,10 @@
#include <linux/bootmem.h>
#include <linux/init.h>
#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <linux/arcdevice.h>
-
-
-#define VERSION "arcnet: RIM I (entirely mem-mapped) support\n"
+#include <linux/io.h>
+#include "arcdevice.h"
+#include "com9026.h"
/* Internal function declarations */
@@ -50,66 +51,46 @@ static void arcrimi_setmask(struct net_device *dev, int mask);
static int arcrimi_reset(struct net_device *dev, int really_reset);
static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
void *buf, int count);
-static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset,
- void *buf, int count);
+static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
+ int offset, void *buf, int count);
/* Handy defines for ARCnet specific stuff */
/* Amount of I/O memory used by the card */
-#define BUFFER_SIZE (512)
-#define MIRROR_SIZE (BUFFER_SIZE*4)
+#define BUFFER_SIZE (512)
+#define MIRROR_SIZE (BUFFER_SIZE * 4)
-/* COM 9026 controller chip --> ARCnet register addresses */
-#define _INTMASK (ioaddr+0) /* writable */
-#define _STATUS (ioaddr+0) /* readable */
-#define _COMMAND (ioaddr+1) /* writable, returns random vals on read (?) */
-#define _RESET (ioaddr+8) /* software reset (on read) */
-#define _MEMDATA (ioaddr+12) /* Data port for IO-mapped memory */
-#define _ADDR_HI (ioaddr+15) /* Control registers for said */
-#define _ADDR_LO (ioaddr+14)
-#define _CONFIG (ioaddr+2) /* Configuration register */
-
-#undef ASTATUS
-#undef ACOMMAND
-#undef AINTMASK
-
-#define ASTATUS() readb(_STATUS)
-#define ACOMMAND(cmd) writeb((cmd),_COMMAND)
-#define AINTMASK(msk) writeb((msk),_INTMASK)
-#define SETCONF() writeb(lp->config,_CONFIG)
-
-
-/*
- * We cannot probe for a RIM I card; one reason is I don't know how to reset
+/* We cannot probe for a RIM I card; one reason is I don't know how to reset
* them. In fact, we can't even get their node ID automatically. So, we
* need to be passed a specific shmem address, IRQ, and node ID.
*/
static int __init arcrimi_probe(struct net_device *dev)
{
- BUGLVL(D_NORMAL) printk(VERSION);
- BUGLVL(D_NORMAL) printk("E-mail me if you actually test the RIM I driver, please!\n");
-
- BUGLVL(D_NORMAL) printk("Given: node %02Xh, shmem %lXh, irq %d\n",
- dev->dev_addr[0], dev->mem_start, dev->irq);
+ if (BUGLVL(D_NORMAL)) {
+ pr_info("%s\n", "RIM I (entirely mem-mapped) support");
+ pr_info("E-mail me if you actually test the RIM I driver, please!\n");
+ pr_info("Given: node %02Xh, shmem %lXh, irq %d\n",
+ dev->dev_addr[0], dev->mem_start, dev->irq);
+ }
if (dev->mem_start <= 0 || dev->irq <= 0) {
- BUGLVL(D_NORMAL) printk("No autoprobe for RIM I; you "
- "must specify the shmem and irq!\n");
+ if (BUGLVL(D_NORMAL))
+ pr_err("No autoprobe for RIM I; you must specify the shmem and irq!\n");
return -ENODEV;
}
if (dev->dev_addr[0] == 0) {
- BUGLVL(D_NORMAL) printk("You need to specify your card's station "
- "ID!\n");
+ if (BUGLVL(D_NORMAL))
+ pr_err("You need to specify your card's station ID!\n");
return -ENODEV;
}
- /*
- * Grab the memory region at mem_start for MIRROR_SIZE bytes.
+ /* Grab the memory region at mem_start for MIRROR_SIZE bytes.
* Later in arcrimi_found() the real size will be determined
* and this reserve will be released and the correct size
* will be taken.
*/
if (!request_mem_region(dev->mem_start, MIRROR_SIZE, "arcnet (90xx)")) {
- BUGLVL(D_NORMAL) printk("Card memory already allocated\n");
+ if (BUGLVL(D_NORMAL))
+ pr_notice("Card memory already allocated\n");
return -ENODEV;
}
return arcrimi_found(dev);
@@ -125,7 +106,7 @@ static int check_mirror(unsigned long addr, size_t size)
p = ioremap(addr, size);
if (p) {
- if (readb(p) == TESTvalue)
+ if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue)
res = 1;
else
res = 0;
@@ -136,9 +117,8 @@ static int check_mirror(unsigned long addr, size_t size)
return res;
}
-/*
- * Set up the struct net_device associated with this card. Called after
- * probing succeeds.
+/* Set up the struct net_device associated with this card.
+ * Called after probing succeeds.
*/
static int __init arcrimi_found(struct net_device *dev)
{
@@ -151,7 +131,7 @@ static int __init arcrimi_found(struct net_device *dev)
p = ioremap(dev->mem_start, MIRROR_SIZE);
if (!p) {
release_mem_region(dev->mem_start, MIRROR_SIZE);
- BUGMSG(D_NORMAL, "Can't ioremap\n");
+ arc_printk(D_NORMAL, dev, "Can't ioremap\n");
return -ENODEV;
}
@@ -159,13 +139,14 @@ static int __init arcrimi_found(struct net_device *dev)
if (request_irq(dev->irq, arcnet_interrupt, 0, "arcnet (RIM I)", dev)) {
iounmap(p);
release_mem_region(dev->mem_start, MIRROR_SIZE);
- BUGMSG(D_NORMAL, "Can't get IRQ %d!\n", dev->irq);
+ arc_printk(D_NORMAL, dev, "Can't get IRQ %d!\n", dev->irq);
return -ENODEV;
}
shmem = dev->mem_start;
- writeb(TESTvalue, p);
- writeb(dev->dev_addr[0], p + 1); /* actually the node ID */
+ arcnet_writeb(TESTvalue, p, COM9026_REG_W_INTMASK);
+ arcnet_writeb(TESTvalue, p, COM9026_REG_W_COMMAND);
+ /* actually the station/node ID */
/* find the real shared memory start/end points, including mirrors */
@@ -174,7 +155,7 @@ static int __init arcrimi_found(struct net_device *dev)
* 2k (or there are no mirrors at all) but on some, it's 4k.
*/
mirror_size = MIRROR_SIZE;
- if (readb(p) == TESTvalue &&
+ if (arcnet_readb(p, COM9026_REG_R_STATUS) == TESTvalue &&
check_mirror(shmem - MIRROR_SIZE, MIRROR_SIZE) == 0 &&
check_mirror(shmem - 2 * MIRROR_SIZE, MIRROR_SIZE) == 1)
mirror_size = 2 * MIRROR_SIZE;
@@ -204,8 +185,7 @@ static int __init arcrimi_found(struct net_device *dev)
lp->hw.copy_to_card = arcrimi_copy_to_card;
lp->hw.copy_from_card = arcrimi_copy_from_card;
- /*
- * re-reserve the memory region - arcrimi_probe() alloced this reqion
+ /* re-reserve the memory region - arcrimi_probe() alloced this reqion
* but didn't know the real size. Free that region and then re-get
* with the correct size. There is a VERY slim chance this could
* fail.
@@ -215,24 +195,25 @@ static int __init arcrimi_found(struct net_device *dev)
if (!request_mem_region(dev->mem_start,
dev->mem_end - dev->mem_start + 1,
"arcnet (90xx)")) {
- BUGMSG(D_NORMAL, "Card memory already allocated\n");
+ arc_printk(D_NORMAL, dev, "Card memory already allocated\n");
goto err_free_irq;
}
- lp->mem_start = ioremap(dev->mem_start, dev->mem_end - dev->mem_start + 1);
+ lp->mem_start = ioremap(dev->mem_start,
+ dev->mem_end - dev->mem_start + 1);
if (!lp->mem_start) {
- BUGMSG(D_NORMAL, "Can't remap device memory!\n");
+ arc_printk(D_NORMAL, dev, "Can't remap device memory!\n");
goto err_release_mem;
}
/* get and check the station ID from offset 1 in shmem */
- dev->dev_addr[0] = readb(lp->mem_start + 1);
+ dev->dev_addr[0] = arcnet_readb(lp->mem_start, COM9026_REG_R_STATION);
- BUGMSG(D_NORMAL, "ARCnet RIM I: station %02Xh found at IRQ %d, "
- "ShMem %lXh (%ld*%d bytes).\n",
- dev->dev_addr[0],
- dev->irq, dev->mem_start,
- (dev->mem_end - dev->mem_start + 1) / mirror_size, mirror_size);
+ arc_printk(D_NORMAL, dev, "ARCnet RIM I: station %02Xh found at IRQ %d, ShMem %lXh (%ld*%d bytes)\n",
+ dev->dev_addr[0],
+ dev->irq, dev->mem_start,
+ (dev->mem_end - dev->mem_start + 1) / mirror_size,
+ mirror_size);
err = register_netdev(dev);
if (err)
@@ -249,9 +230,7 @@ err_free_irq:
return -EIO;
}
-
-/*
- * Do a hardware reset on the card, and set up necessary registers.
+/* Do a hardware reset on the card, and set up necessary registers.
*
* This should be called as little as possible, because it disrupts the
* token on the network (causes a RECON) and requires a significant delay.
@@ -263,17 +242,19 @@ static int arcrimi_reset(struct net_device *dev, int really_reset)
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
- BUGMSG(D_INIT, "Resetting %s (status=%02Xh)\n", dev->name, ASTATUS());
+ arc_printk(D_INIT, dev, "Resetting %s (status=%02Xh)\n",
+ dev->name, arcnet_readb(ioaddr, COM9026_REG_R_STATUS));
if (really_reset) {
- writeb(TESTvalue, ioaddr - 0x800); /* fake reset */
+ arcnet_writeb(TESTvalue, ioaddr, -0x800); /* fake reset */
return 0;
}
- ACOMMAND(CFLAGScmd | RESETclear); /* clear flags & end reset */
- ACOMMAND(CFLAGScmd | CONFIGclear);
+ /* clear flags & end reset */
+ arcnet_writeb(CFLAGScmd | RESETclear, ioaddr, COM9026_REG_W_COMMAND);
+ arcnet_writeb(CFLAGScmd | CONFIGclear, ioaddr, COM9026_REG_W_COMMAND);
/* enable extended (512-byte) packets */
- ACOMMAND(CONFIGcmd | EXTconf);
+ arcnet_writeb(CONFIGcmd | EXTconf, ioaddr, COM9026_REG_W_COMMAND);
/* done! return success. */
return 0;
@@ -284,7 +265,7 @@ static void arcrimi_setmask(struct net_device *dev, int mask)
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
- AINTMASK(mask);
+ arcnet_writeb(mask, ioaddr, COM9026_REG_W_INTMASK);
}
static int arcrimi_status(struct net_device *dev)
@@ -292,7 +273,7 @@ static int arcrimi_status(struct net_device *dev)
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
- return ASTATUS();
+ return arcnet_readb(ioaddr, COM9026_REG_R_STATUS);
}
static void arcrimi_command(struct net_device *dev, int cmd)
@@ -300,7 +281,7 @@ static void arcrimi_command(struct net_device *dev, int cmd)
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->mem_start + 0x800;
- ACOMMAND(cmd);
+ arcnet_writeb(cmd, ioaddr, COM9026_REG_W_COMMAND);
}
static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
@@ -308,16 +289,17 @@ static void arcrimi_copy_to_card(struct net_device *dev, int bufnum, int offset,
{
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
- TIME("memcpy_toio", count, memcpy_toio(memaddr, buf, count));
-}
+ TIME(dev, "memcpy_toio", count, memcpy_toio(memaddr, buf, count));
+}
-static void arcrimi_copy_from_card(struct net_device *dev, int bufnum, int offset,
- void *buf, int count)
+static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
+ int offset, void *buf, int count)
{
struct arcnet_local *lp = netdev_priv(dev);
void __iomem *memaddr = lp->mem_start + 0x800 + bufnum * 512 + offset;
- TIME("memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
+
+ TIME(dev, "memcpy_fromio", count, memcpy_fromio(buf, memaddr, count));
}
static int node;
@@ -374,12 +356,13 @@ static void __exit arc_rimi_exit(void)
static int __init arcrimi_setup(char *s)
{
int ints[8];
+
s = get_options(s, 8, ints);
if (!ints[0])
return 1;
switch (ints[0]) {
default: /* ERROR */
- printk("arcrimi: Too many arguments.\n");
+ pr_err("Too many arguments\n");
case 3: /* Node ID */
node = ints[3];
case 2: /* IRQ */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.