[net-next-2.6.git] / drivers / net / phy / cicada.c

/*
 * drivers/net/phy/cicada.c
 *
 * Driver for Cicada PHYs
 *
 * Author: Andy Fleming
 *
 * Copyright (c) 2004 Freescale Semiconductor, Inc.
 *
 * 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/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/unistd.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/phy.h>

#include <asm/io.h>
#include <asm/irq.h>
#include <asm/uaccess.h>

/* Cicada Extended Control Register 1 */
#define MII_CIS8201_EXT_CON1           0x17
#define MII_CIS8201_EXTCON1_INIT       0x0000

/* Cicada Interrupt Mask Register */
#define MII_CIS8201_IMASK		0x19
#define MII_CIS8201_IMASK_IEN		0x8000
#define MII_CIS8201_IMASK_SPEED	0x4000
#define MII_CIS8201_IMASK_LINK		0x2000
#define MII_CIS8201_IMASK_DUPLEX	0x1000
#define MII_CIS8201_IMASK_MASK		0xf000

/* Cicada Interrupt Status Register */
#define MII_CIS8201_ISTAT		0x1a
#define MII_CIS8201_ISTAT_STATUS	0x8000
#define MII_CIS8201_ISTAT_SPEED	0x4000
#define MII_CIS8201_ISTAT_LINK		0x2000
#define MII_CIS8201_ISTAT_DUPLEX	0x1000

/* Cicada Auxiliary Control/Status Register */
#define MII_CIS8201_AUX_CONSTAT        0x1c
#define MII_CIS8201_AUXCONSTAT_INIT    0x0004
#define MII_CIS8201_AUXCONSTAT_DUPLEX  0x0020
#define MII_CIS8201_AUXCONSTAT_SPEED   0x0018
#define MII_CIS8201_AUXCONSTAT_GBIT    0x0010
#define MII_CIS8201_AUXCONSTAT_100     0x0008

MODULE_DESCRIPTION("Cicadia PHY driver");
MODULE_AUTHOR("Andy Fleming");
MODULE_LICENSE("GPL");

static int cis820x_config_init(struct phy_device *phydev)
{
	int err;

	err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
			MII_CIS8201_AUXCONSTAT_INIT);

	if (err < 0)
		return err;

	err = phy_write(phydev, MII_CIS8201_EXT_CON1,
			MII_CIS8201_EXTCON1_INIT);

	return err;
}

static int cis820x_ack_interrupt(struct phy_device *phydev)
{
	int err = phy_read(phydev, MII_CIS8201_ISTAT);

	return (err < 0) ? err : 0;
}

static int cis820x_config_intr(struct phy_device *phydev)
{
	int err;

	if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
		err = phy_write(phydev, MII_CIS8201_IMASK, 
				MII_CIS8201_IMASK_MASK);
	else
		err = phy_write(phydev, MII_CIS8201_IMASK, 0);

	return err;
}

/* Cicada 8201, a.k.a Vitesse VSC8201 */
static struct phy_driver cis8201_driver = {
	.phy_id		= 0x000fc410,
	.name		= "Cicada Cis8201",
	.phy_id_mask	= 0x000ffff0,
	.features	= PHY_GBIT_FEATURES,
	.flags		= PHY_HAS_INTERRUPT,
	.config_init	= &cis820x_config_init,
	.config_aneg	= &genphy_config_aneg,
	.read_status	= &genphy_read_status,
	.ack_interrupt	= &cis820x_ack_interrupt,
	.config_intr	= &cis820x_config_intr,
	.driver 	= { .owner = THIS_MODULE,},
};

/* Cicada 8204 */
static struct phy_driver cis8204_driver = {
	.phy_id		= 0x000fc440,
	.name		= "Cicada Cis8204",
	.phy_id_mask	= 0x000fffc0,
	.features	= PHY_GBIT_FEATURES,
	.flags		= PHY_HAS_INTERRUPT,
	.config_init	= &cis820x_config_init,
	.config_aneg	= &genphy_config_aneg,
	.read_status	= &genphy_read_status,
	.ack_interrupt	= &cis820x_ack_interrupt,
	.config_intr	= &cis820x_config_intr,
	.driver 	= { .owner = THIS_MODULE,},
};

static int __init cicada_init(void)
{
	int ret;

	ret = phy_driver_register(&cis8204_driver);
	if (ret)
		goto err1;

	ret = phy_driver_register(&cis8201_driver);
	if (ret)
		goto err2;
	return 0;

err2:
	phy_driver_unregister(&cis8204_driver);
err1:
	return ret;
}

static void __exit cicada_exit(void)
{
	phy_driver_unregister(&cis8204_driver);
	phy_driver_unregister(&cis8201_driver);
}

module_init(cicada_init);
module_exit(cicada_exit);
Commit	Line	Data
00db8189 AF	1	/*
	2	* drivers/net/phy/cicada.c
	3	*
	4	* Driver for Cicada PHYs
	5	*
	6	* Author: Andy Fleming
	7	*
	8	* Copyright (c) 2004 Freescale Semiconductor, Inc.
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
	15	*/
00db8189	16	#include <linux/kernel.h>
00db8189 AF	17	#include <linux/string.h>
	18	#include <linux/errno.h>
	19	#include <linux/unistd.h>
00db8189 AF	20	#include <linux/interrupt.h>
	21	#include <linux/init.h>
	22	#include <linux/delay.h>
	23	#include <linux/netdevice.h>
	24	#include <linux/etherdevice.h>
	25	#include <linux/skbuff.h>
	26	#include <linux/spinlock.h>
	27	#include <linux/mm.h>
	28	#include <linux/module.h>
00db8189 AF	29	#include <linux/mii.h>
	30	#include <linux/ethtool.h>
	31	#include <linux/phy.h>
	32
	33	#include <asm/io.h>
	34	#include <asm/irq.h>
	35	#include <asm/uaccess.h>
	36
	37	/* Cicada Extended Control Register 1 */
	38	#define MII_CIS8201_EXT_CON1 0x17
	39	#define MII_CIS8201_EXTCON1_INIT 0x0000
	40
	41	/* Cicada Interrupt Mask Register */
	42	#define MII_CIS8201_IMASK 0x19
	43	#define MII_CIS8201_IMASK_IEN 0x8000
	44	#define MII_CIS8201_IMASK_SPEED 0x4000
	45	#define MII_CIS8201_IMASK_LINK 0x2000
	46	#define MII_CIS8201_IMASK_DUPLEX 0x1000
	47	#define MII_CIS8201_IMASK_MASK 0xf000
	48
	49	/* Cicada Interrupt Status Register */
	50	#define MII_CIS8201_ISTAT 0x1a
	51	#define MII_CIS8201_ISTAT_STATUS 0x8000
	52	#define MII_CIS8201_ISTAT_SPEED 0x4000
	53	#define MII_CIS8201_ISTAT_LINK 0x2000
	54	#define MII_CIS8201_ISTAT_DUPLEX 0x1000
	55
	56	/* Cicada Auxiliary Control/Status Register */
	57	#define MII_CIS8201_AUX_CONSTAT 0x1c
	58	#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
	59	#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
	60	#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
	61	#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
	62	#define MII_CIS8201_AUXCONSTAT_100 0x0008
	63
	64	MODULE_DESCRIPTION("Cicadia PHY driver");
	65	MODULE_AUTHOR("Andy Fleming");
	66	MODULE_LICENSE("GPL");
	67
	68	static int cis820x_config_init(struct phy_device *phydev)
	69	{
	70	int err;
	71
	72	err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
	73	MII_CIS8201_AUXCONSTAT_INIT);
	74
	75	if (err < 0)
	76	return err;
	77
	78	err = phy_write(phydev, MII_CIS8201_EXT_CON1,
	79	MII_CIS8201_EXTCON1_INIT);
	80
	81	return err;
	82	}
	83
	84	static int cis820x_ack_interrupt(struct phy_device *phydev)
	85	{
	86	int err = phy_read(phydev, MII_CIS8201_ISTAT);
	87
	88	return (err < 0) ? err : 0;
	89	}
	90
	91	static int cis820x_config_intr(struct phy_device *phydev)
	92	{
93	int err;
94
95	if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
96	err = phy_write(phydev, MII_CIS8201_IMASK,
97	MII_CIS8201_IMASK_MASK);
98	else
99	err = phy_write(phydev, MII_CIS8201_IMASK, 0);
100
101	return err;
102	}
103
0c639b31 KP	104	/* Cicada 8201, a.k.a Vitesse VSC8201 */
	105	static struct phy_driver cis8201_driver = {
	106	.phy_id = 0x000fc410,
	107	.name = "Cicada Cis8201",
	108	.phy_id_mask = 0x000ffff0,
	109	.features = PHY_GBIT_FEATURES,
	110	.flags = PHY_HAS_INTERRUPT,
	111	.config_init = &cis820x_config_init,
	112	.config_aneg = &genphy_config_aneg,
	113	.read_status = &genphy_read_status,
	114	.ack_interrupt = &cis820x_ack_interrupt,
	115	.config_intr = &cis820x_config_intr,
	116	.driver = { .owner = THIS_MODULE,},
	117	};
	118
	119	/* Cicada 8204 */
00db8189 AF	120	static struct phy_driver cis8204_driver = {
	121	.phy_id = 0x000fc440,
	122	.name = "Cicada Cis8204",
	123	.phy_id_mask = 0x000fffc0,
	124	.features = PHY_GBIT_FEATURES,
	125	.flags = PHY_HAS_INTERRUPT,
	126	.config_init = &cis820x_config_init,
	127	.config_aneg = &genphy_config_aneg,
	128	.read_status = &genphy_read_status,
	129	.ack_interrupt = &cis820x_ack_interrupt,
	130	.config_intr = &cis820x_config_intr,
	131	.driver = { .owner = THIS_MODULE,},
	132	};
	133
0c639b31	134	static int __init cicada_init(void)
00db8189	135	{
0c639b31 KP	136	int ret;
	137
	138	ret = phy_driver_register(&cis8204_driver);
	139	if (ret)
	140	goto err1;
	141
	142	ret = phy_driver_register(&cis8201_driver);
	143	if (ret)
	144	goto err2;
	145	return 0;
	146
	147	err2:
	148	phy_driver_unregister(&cis8204_driver);
	149	err1:
	150	return ret;
00db8189 AF	151	}
00db8189 AF	152
0c639b31	153	static void __exit cicada_exit(void)
00db8189 AF	154	{
00db8189 AF	155	phy_driver_unregister(&cis8204_driver);
0c639b31	156	phy_driver_unregister(&cis8201_driver);
00db8189 AF	157	}
00db8189 AF	158
0c639b31 KP	159	module_init(cicada_init);
0c639b31 KP	160	module_exit(cicada_exit);