[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/slab.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>
	20	#include <linux/slab.h>
	21	#include <linux/interrupt.h>
	22	#include <linux/init.h>
	23	#include <linux/delay.h>
	24	#include <linux/netdevice.h>
	25	#include <linux/etherdevice.h>
	26	#include <linux/skbuff.h>
	27	#include <linux/spinlock.h>
	28	#include <linux/mm.h>
	29	#include <linux/module.h>
00db8189 AF	30	#include <linux/mii.h>
	31	#include <linux/ethtool.h>
	32	#include <linux/phy.h>
	33
	34	#include <asm/io.h>
	35	#include <asm/irq.h>
	36	#include <asm/uaccess.h>
	37
	38	/* Cicada Extended Control Register 1 */
	39	#define MII_CIS8201_EXT_CON1 0x17
	40	#define MII_CIS8201_EXTCON1_INIT 0x0000
	41
	42	/* Cicada Interrupt Mask Register */
	43	#define MII_CIS8201_IMASK 0x19
	44	#define MII_CIS8201_IMASK_IEN 0x8000
	45	#define MII_CIS8201_IMASK_SPEED 0x4000
	46	#define MII_CIS8201_IMASK_LINK 0x2000
	47	#define MII_CIS8201_IMASK_DUPLEX 0x1000
	48	#define MII_CIS8201_IMASK_MASK 0xf000
	49
	50	/* Cicada Interrupt Status Register */
	51	#define MII_CIS8201_ISTAT 0x1a
	52	#define MII_CIS8201_ISTAT_STATUS 0x8000
	53	#define MII_CIS8201_ISTAT_SPEED 0x4000
	54	#define MII_CIS8201_ISTAT_LINK 0x2000
	55	#define MII_CIS8201_ISTAT_DUPLEX 0x1000
	56
	57	/* Cicada Auxiliary Control/Status Register */
	58	#define MII_CIS8201_AUX_CONSTAT 0x1c
	59	#define MII_CIS8201_AUXCONSTAT_INIT 0x0004
	60	#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020
	61	#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018
	62	#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010
	63	#define MII_CIS8201_AUXCONSTAT_100 0x0008
	64
	65	MODULE_DESCRIPTION("Cicadia PHY driver");
	66	MODULE_AUTHOR("Andy Fleming");
	67	MODULE_LICENSE("GPL");
	68
	69	static int cis820x_config_init(struct phy_device *phydev)
	70	{
	71	int err;
	72
	73	err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT,
	74	MII_CIS8201_AUXCONSTAT_INIT);
	75
	76	if (err < 0)
	77	return err;
	78
	79	err = phy_write(phydev, MII_CIS8201_EXT_CON1,
	80	MII_CIS8201_EXTCON1_INIT);
	81
	82	return err;
	83	}
	84
	85	static int cis820x_ack_interrupt(struct phy_device *phydev)
	86	{
	87	int err = phy_read(phydev, MII_CIS8201_ISTAT);
	88
	89	return (err < 0) ? err : 0;
	90	}
	91
	92	static int cis820x_config_intr(struct phy_device *phydev)
	93	{
94	int err;
95
96	if(phydev->interrupts == PHY_INTERRUPT_ENABLED)
97	err = phy_write(phydev, MII_CIS8201_IMASK,
98	MII_CIS8201_IMASK_MASK);
99	else
100	err = phy_write(phydev, MII_CIS8201_IMASK, 0);
101
102	return err;
103	}
104
0c639b31 KP	105	/* Cicada 8201, a.k.a Vitesse VSC8201 */
	106	static struct phy_driver cis8201_driver = {
	107	.phy_id = 0x000fc410,
	108	.name = "Cicada Cis8201",
	109	.phy_id_mask = 0x000ffff0,
	110	.features = PHY_GBIT_FEATURES,
	111	.flags = PHY_HAS_INTERRUPT,
	112	.config_init = &cis820x_config_init,
	113	.config_aneg = &genphy_config_aneg,
	114	.read_status = &genphy_read_status,
	115	.ack_interrupt = &cis820x_ack_interrupt,
	116	.config_intr = &cis820x_config_intr,
	117	.driver = { .owner = THIS_MODULE,},
	118	};
	119
	120	/* Cicada 8204 */
00db8189 AF	121	static struct phy_driver cis8204_driver = {
	122	.phy_id = 0x000fc440,
	123	.name = "Cicada Cis8204",
	124	.phy_id_mask = 0x000fffc0,
	125	.features = PHY_GBIT_FEATURES,
	126	.flags = PHY_HAS_INTERRUPT,
	127	.config_init = &cis820x_config_init,
	128	.config_aneg = &genphy_config_aneg,
	129	.read_status = &genphy_read_status,
	130	.ack_interrupt = &cis820x_ack_interrupt,
	131	.config_intr = &cis820x_config_intr,
	132	.driver = { .owner = THIS_MODULE,},
	133	};
	134
0c639b31	135	static int __init cicada_init(void)
00db8189	136	{
0c639b31 KP	137	int ret;
	138
	139	ret = phy_driver_register(&cis8204_driver);
	140	if (ret)
	141	goto err1;
	142
	143	ret = phy_driver_register(&cis8201_driver);
	144	if (ret)
	145	goto err2;
	146	return 0;
	147
	148	err2:
	149	phy_driver_unregister(&cis8204_driver);
	150	err1:
	151	return ret;
00db8189 AF	152	}
00db8189 AF	153
0c639b31	154	static void __exit cicada_exit(void)
00db8189 AF	155	{
00db8189 AF	156	phy_driver_unregister(&cis8204_driver);
0c639b31	157	phy_driver_unregister(&cis8201_driver);
00db8189 AF	158	}
00db8189 AF	159
0c639b31 KP	160	module_init(cicada_init);
0c639b31 KP	161	module_exit(cicada_exit);