[deliverable/linux.git] / drivers / net / phy / davicom.c

/*
 * drivers/net/phy/davicom.c
 *
 * Driver for Davicom 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/sched.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>

#define MII_DM9161_SCR		0x10
#define MII_DM9161_SCR_INIT	0x0610

/* DM9161 Interrupt Register */
#define MII_DM9161_INTR	0x15
#define MII_DM9161_INTR_PEND		0x8000
#define MII_DM9161_INTR_DPLX_MASK	0x0800
#define MII_DM9161_INTR_SPD_MASK	0x0400
#define MII_DM9161_INTR_LINK_MASK	0x0200
#define MII_DM9161_INTR_MASK		0x0100
#define MII_DM9161_INTR_DPLX_CHANGE	0x0010
#define MII_DM9161_INTR_SPD_CHANGE	0x0008
#define MII_DM9161_INTR_LINK_CHANGE	0x0004
#define MII_DM9161_INTR_INIT 		0x0000
#define MII_DM9161_INTR_STOP	\
(MII_DM9161_INTR_DPLX_MASK | MII_DM9161_INTR_SPD_MASK \
 | MII_DM9161_INTR_LINK_MASK | MII_DM9161_INTR_MASK)

/* DM9161 10BT Configuration/Status */
#define MII_DM9161_10BTCSR	0x12
#define MII_DM9161_10BTCSR_INIT	0x7800

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


#define DM9161_DELAY 1
static int dm9161_config_intr(struct phy_device *phydev)
{
	int temp;

	temp = phy_read(phydev, MII_DM9161_INTR);

	if (temp < 0)
		return temp;

	if(PHY_INTERRUPT_ENABLED == phydev->interrupts )
		temp &= ~(MII_DM9161_INTR_STOP);
	else
		temp |= MII_DM9161_INTR_STOP;

	temp = phy_write(phydev, MII_DM9161_INTR, temp);

	return temp;
}

static int dm9161_config_aneg(struct phy_device *phydev)
{
	int err;

	/* Isolate the PHY */
	err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);

	if (err < 0)
		return err;

	/* Configure the new settings */
	err = genphy_config_aneg(phydev);

	if (err < 0)
		return err;

	return 0;
}

static int dm9161_config_init(struct phy_device *phydev)
{
	int err;

	/* Isolate the PHY */
	err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);

	if (err < 0)
		return err;

	/* Do not bypass the scrambler/descrambler */
	err = phy_write(phydev, MII_DM9161_SCR, MII_DM9161_SCR_INIT);

	if (err < 0)
		return err;

	/* Clear 10BTCSR to default */
	err = phy_write(phydev, MII_DM9161_10BTCSR, MII_DM9161_10BTCSR_INIT);

	if (err < 0)
		return err;

	/* Reconnect the PHY, and enable Autonegotiation */
	err = phy_write(phydev, MII_BMCR, BMCR_ANENABLE);

	if (err < 0)
		return err;

	return 0;
}

static int dm9161_ack_interrupt(struct phy_device *phydev)
{
	int err = phy_read(phydev, MII_DM9161_INTR);

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

static struct phy_driver dm9161_driver = {
	.phy_id		= 0x0181b880,
	.name		= "Davicom DM9161E",
	.phy_id_mask	= 0x0ffffff0,
	.features	= PHY_BASIC_FEATURES,
	.config_init	= dm9161_config_init,
	.config_aneg	= dm9161_config_aneg,
	.read_status	= genphy_read_status,
	.driver 	= { .owner = THIS_MODULE,},
};

static struct phy_driver dm9131_driver = {
	.phy_id		= 0x00181b80,
	.name		= "Davicom DM9131",
	.phy_id_mask	= 0x0ffffff0,
	.features	= PHY_BASIC_FEATURES,
	.flags		= PHY_HAS_INTERRUPT,
	.config_aneg	= genphy_config_aneg,
	.read_status	= genphy_read_status,
	.ack_interrupt	= dm9161_ack_interrupt,
	.config_intr	= dm9161_config_intr,
	.driver 	= { .owner = THIS_MODULE,},
};

static int __init davicom_init(void)
{
	int ret;

	ret = phy_driver_register(&dm9161_driver);
	if (ret)
		goto err1;

	ret = phy_driver_register(&dm9131_driver);
	if (ret)
		goto err2;
	return 0;

 err2:	
	phy_driver_unregister(&dm9161_driver);
 err1:
	return ret;
}

static void __exit davicom_exit(void)
{
	phy_driver_unregister(&dm9161_driver);
	phy_driver_unregister(&dm9131_driver);
}

module_init(davicom_init);
module_exit(davicom_exit);
Commit	Line	Data
00db8189 AF	1	/*
	2	* drivers/net/phy/davicom.c
	3	*
	4	* Driver for Davicom 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 AF	16	#include <linux/kernel.h>
	17	#include <linux/sched.h>
	18	#include <linux/string.h>
	19	#include <linux/errno.h>
	20	#include <linux/unistd.h>
	21	#include <linux/slab.h>
	22	#include <linux/interrupt.h>
	23	#include <linux/init.h>
	24	#include <linux/delay.h>
	25	#include <linux/netdevice.h>
	26	#include <linux/etherdevice.h>
	27	#include <linux/skbuff.h>
	28	#include <linux/spinlock.h>
	29	#include <linux/mm.h>
	30	#include <linux/module.h>
00db8189 AF	31	#include <linux/mii.h>
	32	#include <linux/ethtool.h>
	33	#include <linux/phy.h>
	34
	35	#include <asm/io.h>
	36	#include <asm/irq.h>
	37	#include <asm/uaccess.h>
	38
	39	#define MII_DM9161_SCR 0x10
	40	#define MII_DM9161_SCR_INIT 0x0610
	41
	42	/* DM9161 Interrupt Register */
	43	#define MII_DM9161_INTR 0x15
	44	#define MII_DM9161_INTR_PEND 0x8000
	45	#define MII_DM9161_INTR_DPLX_MASK 0x0800
	46	#define MII_DM9161_INTR_SPD_MASK 0x0400
	47	#define MII_DM9161_INTR_LINK_MASK 0x0200
	48	#define MII_DM9161_INTR_MASK 0x0100
	49	#define MII_DM9161_INTR_DPLX_CHANGE 0x0010
	50	#define MII_DM9161_INTR_SPD_CHANGE 0x0008
	51	#define MII_DM9161_INTR_LINK_CHANGE 0x0004
	52	#define MII_DM9161_INTR_INIT 0x0000
	53	#define MII_DM9161_INTR_STOP \
	54	(MII_DM9161_INTR_DPLX_MASK \| MII_DM9161_INTR_SPD_MASK \
	55	\| MII_DM9161_INTR_LINK_MASK \| MII_DM9161_INTR_MASK)
	56
	57	/* DM9161 10BT Configuration/Status */
	58	#define MII_DM9161_10BTCSR 0x12
	59	#define MII_DM9161_10BTCSR_INIT 0x7800
	60
	61	MODULE_DESCRIPTION("Davicom PHY driver");
	62	MODULE_AUTHOR("Andy Fleming");
	63	MODULE_LICENSE("GPL");
	64
	65
	66	#define DM9161_DELAY 1
	67	static int dm9161_config_intr(struct phy_device *phydev)
	68	{
	69	int temp;
	70
	71	temp = phy_read(phydev, MII_DM9161_INTR);
	72
	73	if (temp < 0)
	74	return temp;
	75
	76	if(PHY_INTERRUPT_ENABLED == phydev->interrupts )
	77	temp &= ~(MII_DM9161_INTR_STOP);
	78	else
	79	temp \|= MII_DM9161_INTR_STOP;
	80
	81	temp = phy_write(phydev, MII_DM9161_INTR, temp);
	82
	83	return temp;
	84	}
	85
	86	static int dm9161_config_aneg(struct phy_device *phydev)
	87	{
	88	int err;
	89
	90	/* Isolate the PHY */
	91	err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
	92
	93	if (err < 0)
	94	return err;
95
96	/* Configure the new settings */
97	err = genphy_config_aneg(phydev);
98
99	if (err < 0)
100	return err;
101
102	return 0;
103	}
104
105	static int dm9161_config_init(struct phy_device *phydev)
106	{
107	int err;
108
109	/* Isolate the PHY */
110	err = phy_write(phydev, MII_BMCR, BMCR_ISOLATE);
111
112	if (err < 0)
113	return err;
114
115	/* Do not bypass the scrambler/descrambler */
116	err = phy_write(phydev, MII_DM9161_SCR, MII_DM9161_SCR_INIT);
117
118	if (err < 0)
119	return err;
120
121	/* Clear 10BTCSR to default */
122	err = phy_write(phydev, MII_DM9161_10BTCSR, MII_DM9161_10BTCSR_INIT);
123
124	if (err < 0)
125	return err;
126
127	/* Reconnect the PHY, and enable Autonegotiation */
128	err = phy_write(phydev, MII_BMCR, BMCR_ANENABLE);
129
130	if (err < 0)
131	return err;
132
133	return 0;
134	}
135
136	static int dm9161_ack_interrupt(struct phy_device *phydev)
137	{
138	int err = phy_read(phydev, MII_DM9161_INTR);
139
140	return (err < 0) ? err : 0;
141	}
142
143	static struct phy_driver dm9161_driver = {
144	.phy_id = 0x0181b880,
145	.name = "Davicom DM9161E",
146	.phy_id_mask = 0x0ffffff0,
147	.features = PHY_BASIC_FEATURES,
148	.config_init = dm9161_config_init,
149	.config_aneg = dm9161_config_aneg,
150	.read_status = genphy_read_status,
151	.driver = { .owner = THIS_MODULE,},
152	};
153
154	static struct phy_driver dm9131_driver = {
155	.phy_id = 0x00181b80,
156	.name = "Davicom DM9131",
157	.phy_id_mask = 0x0ffffff0,
158	.features = PHY_BASIC_FEATURES,
159	.flags = PHY_HAS_INTERRUPT,
160	.config_aneg = genphy_config_aneg,
161	.read_status = genphy_read_status,
162	.ack_interrupt = dm9161_ack_interrupt,
163	.config_intr = dm9161_config_intr,
164	.driver = { .owner = THIS_MODULE,},
165	};
166
167	static int __init davicom_init(void)
168	{
169	int ret;
170
171	ret = phy_driver_register(&dm9161_driver);
172	if (ret)
173	goto err1;
174
175	ret = phy_driver_register(&dm9131_driver);
176	if (ret)
177	goto err2;
178	return 0;
179
180	err2:
181	phy_driver_unregister(&dm9161_driver);
182	err1:
183	return ret;
184	}
185
186	static void __exit davicom_exit(void)
187	{
188	phy_driver_unregister(&dm9161_driver);
189	phy_driver_unregister(&dm9131_driver);
190	}
191
192	module_init(davicom_init);
193	module_exit(davicom_exit);