[PATCH] phy: new SMSC LAN83C185 PHY driver

new SMSC LAN83C185 10BaseT/100BaseTX PHY driver for the PHY subsystem

Signed-off-by: Herbert Valerio Riedel <hvr@gnu.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

3 files changed, 108 insertions, 0 deletions

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index fa39b944bc46..cda3e53d6917 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -45,5 +45,11 @@ config CICADA_PHY
         ---help---
           Currently supports the cis8204
 
+config SMSC_PHY
+        tristate "Drivers for SMSC PHYs"
+        depends on PHYLIB
+        ---help---
+          Currently supports the LAN83C185 PHY
+
 endmenu
 
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index e4116a5fbb4c..d9614134cc06 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_DAVICOM_PHY)	+= davicom.o
 obj-$(CONFIG_CICADA_PHY)        += cicada.o
 obj-$(CONFIG_LXT_PHY)           += lxt.o
 obj-$(CONFIG_QSEMI_PHY)         += qsemi.o
+obj-$(CONFIG_SMSC_PHY)          += smsc.o
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
new file mode 100644
index 000000000000..25e31fb5cb31
--- /dev/null
+++ b/drivers/net/phy/smsc.c
@@ -0,0 +1,101 @@
+/*
+ * drivers/net/phy/smsc.c
+ *
+ * Driver for SMSC PHYs
+ *
+ * Author: Herbert Valerio Riedel
+ *
+ * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+
+#define MII_LAN83C185_ISF 29 /* Interrupt Source Flags */
+#define MII_LAN83C185_IM  30 /* Interrupt Mask */
+
+#define MII_LAN83C185_ISF_INT1 (1<<1) /* Auto-Negotiation Page Received */
+#define MII_LAN83C185_ISF_INT2 (1<<2) /* Parallel Detection Fault */
+#define MII_LAN83C185_ISF_INT3 (1<<3) /* Auto-Negotiation LP Ack */
+#define MII_LAN83C185_ISF_INT4 (1<<4) /* Link Down */
+#define MII_LAN83C185_ISF_INT5 (1<<5) /* Remote Fault Detected */
+#define MII_LAN83C185_ISF_INT6 (1<<6) /* Auto-Negotiation complete */
+#define MII_LAN83C185_ISF_INT7 (1<<7) /* ENERGYON */
+
+#define MII_LAN83C185_ISF_INT_ALL (0x0e)
+
+#define MII_LAN83C185_ISF_INT_PHYLIB_EVENTS \
+        (MII_LAN83C185_ISF_INT6 | MII_LAN83C185_ISF_INT4)
+
+
+static int lan83c185_config_intr(struct phy_device *phydev)
+{
+        int rc = phy_write (phydev, MII_LAN83C185_IM,
+                        ((PHY_INTERRUPT_ENABLED == phydev->interrupts)
+                        ? MII_LAN83C185_ISF_INT_PHYLIB_EVENTS
+                        : 0));
+
+        return rc < 0 ? rc : 0;
+}
+
+static int lan83c185_ack_interrupt(struct phy_device *phydev)
+{
+        int rc = phy_read (phydev, MII_LAN83C185_ISF);
+
+        return rc < 0 ? rc : 0;
+}
+
+static int lan83c185_config_init(struct phy_device *phydev)
+{
+        return lan83c185_ack_interrupt (phydev);
+}
+
+
+static struct phy_driver lan83c185_driver = {
+        .phy_id         = 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
+        .phy_id_mask    = 0xfffffff0,
+        .name           = "SMSC LAN83C185",
+
+        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
+                                | SUPPORTED_Asym_Pause),
+        .flags          = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG,
+
+        /* basic functions */
+        .config_aneg    = genphy_config_aneg,
+        .read_status    = genphy_read_status,
+        .config_init    = lan83c185_config_init,
+
+        /* IRQ related */
+        .ack_interrupt  = lan83c185_ack_interrupt,
+        .config_intr    = lan83c185_config_intr,
+
+        .driver         = { .owner = THIS_MODULE, }
+};
+
+static int __init smsc_init(void)
+{
+        return phy_driver_register (&lan83c185_driver);
+}
+
+static void __exit smsc_exit(void)
+{
+        phy_driver_unregister (&lan83c185_driver);
+}
+
+MODULE_DESCRIPTION("SMSC PHY driver");
+MODULE_AUTHOR("Herbert Valerio Riedel");
+MODULE_LICENSE("GPL");
+
+module_init(smsc_init);
+module_exit(smsc_exit);