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Message-Id: <1442912534-10821-26-git-send-email-m.grzeschik@pengutronix.de>
Date: Tue, 22 Sep 2015 11:02:06 +0200
From: Michael Grzeschik <m.grzeschik@...gutronix.de>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, joe@...ches.com, kernel@...gutronix.de
Subject: [PATCH 25/33] arcnet: arc-rimi: Use arcnet_<I/O> routines
From: Joe Perches <joe@...ches.com>
Simplify and make consistent the current uses of readb/writeb
by using the newly introduced arcnet_<I/O> equivalents.
o Add new #defines for register offsets
o Remove old #defines that included the ioaddr
o Remove obfuscating macros by expanding them in-place where appropriate
Signed-off-by: Joe Perches <joe@...ches.com>
Signed-off-by: Michael Grzeschik <m.grzeschik@...gutronix.de>
---
drivers/net/arcnet/arc-rimi.c | 55 ++++++++++++++++++++-----------------------
1 file changed, 25 insertions(+), 30 deletions(-)
diff --git a/drivers/net/arcnet/arc-rimi.c b/drivers/net/arcnet/arc-rimi.c
index 37406ff..4c35a7e 100644
--- a/drivers/net/arcnet/arc-rimi.c
+++ b/drivers/net/arcnet/arc-rimi.c
@@ -60,23 +60,16 @@ static void arcrimi_copy_from_card(struct net_device *dev, int bufnum,
#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)
+#define COM9026_REG_W_INTMASK 0 /* writable */
+#define COM9026_REG_R_STATUS 0 /* readable */
+#define COM9026_REG_W_COMMAND 1 /* writable, returns random vals on read (?) */
+#define COM9026_REG_RW_CONFIG 2 /* Configuration register */
+#define COM9026_REG_R_RESET 8 /* software reset (on read) */
+#define COM9026_REG_RW_MEMDATA 12 /* Data port for IO-mapped memory */
+#define COM9026_REG_W_ADDR_LO 14 /* Control registers for said */
+#define COM9026_REG_W_ADDR_HI 15
+
+#define COM9026_REG_R_STATION 1 /* Station ID */
/* 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
@@ -124,7 +117,7 @@ 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;
@@ -162,8 +155,9 @@ static int __init arcrimi_found(struct net_device *dev)
}
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 */
@@ -172,7 +166,7 @@ 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;
@@ -224,7 +218,7 @@ static int __init arcrimi_found(struct net_device *dev)
}
/* 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);
arc_printk(D_NORMAL, dev, "ARCnet RIM I: station %02Xh found at IRQ %d, ShMem %lXh (%ld*%d bytes)\n",
dev->dev_addr[0],
@@ -260,17 +254,18 @@ static int arcrimi_reset(struct net_device *dev, int really_reset)
void __iomem *ioaddr = lp->mem_start + 0x800;
arc_printk(D_INIT, dev, "Resetting %s (status=%02Xh)\n",
- dev->name, ASTATUS());
+ 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;
@@ -281,7 +276,7 @@ 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)
@@ -289,7 +284,7 @@ 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)
@@ -297,7 +292,7 @@ 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,
--
2.5.1
--
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