freebsd-nq/sys/dev/usb/net/if_axereg.h

/*-
 * Copyright (c) 1997, 1998, 1999, 2000-2003
 *	Bill Paul <wpaul@windriver.com>.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Bill Paul.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD$
 */

/*
 * Definitions for the ASIX Electronics AX88172, AX88178
 * and AX88772 to ethernet controllers.
 */

/*
 * Vendor specific commands.  ASIX conveniently doesn't document the 'set
 * NODEID' command in their datasheet (thanks a lot guys).
 * To make handling these commands easier, I added some extra data which is
 * decided by the axe_cmd() routine. Commands are encoded in 16 bits, with
 * the format: LDCC. L and D are both nibbles in the high byte.  L represents
 * the data length (0 to 15) and D represents the direction (0 for vendor read,
 * 1 for vendor write).  CC is the command byte, as specified in the manual.
 */

#define	AXE_CMD_IS_WRITE(x)	(((x) & 0x0F00) >> 8)
#define	AXE_CMD_LEN(x)		(((x) & 0xF000) >> 12)
#define	AXE_CMD_CMD(x)		((x) & 0x00FF)

#define	AXE_172_CMD_READ_RXTX_SRAM		0x2002
#define	AXE_182_CMD_READ_RXTX_SRAM		0x8002
#define	AXE_172_CMD_WRITE_RX_SRAM		0x0103
#define	AXE_182_CMD_WRITE_RXTX_SRAM		0x8103
#define	AXE_172_CMD_WRITE_TX_SRAM		0x0104
#define	AXE_CMD_MII_OPMODE_SW			0x0106
#define	AXE_CMD_MII_READ_REG			0x2007
#define	AXE_CMD_MII_WRITE_REG			0x2108
#define	AXE_CMD_MII_READ_OPMODE			0x1009
#define	AXE_CMD_MII_OPMODE_HW			0x010A
#define	AXE_CMD_SROM_READ			0x200B
#define	AXE_CMD_SROM_WRITE			0x010C
#define	AXE_CMD_SROM_WR_ENABLE			0x010D
#define	AXE_CMD_SROM_WR_DISABLE			0x010E
#define	AXE_CMD_RXCTL_READ			0x200F
#define	AXE_CMD_RXCTL_WRITE			0x0110
#define	AXE_CMD_READ_IPG012			0x3011
#define	AXE_172_CMD_WRITE_IPG0			0x0112
#define	AXE_178_CMD_WRITE_IPG012		0x0112
#define	AXE_172_CMD_WRITE_IPG1			0x0113
#define	AXE_178_CMD_READ_NODEID			0x6013
#define	AXE_172_CMD_WRITE_IPG2			0x0114
#define	AXE_178_CMD_WRITE_NODEID		0x6114
#define	AXE_CMD_READ_MCAST			0x8015
#define	AXE_CMD_WRITE_MCAST			0x8116
#define	AXE_172_CMD_READ_NODEID			0x6017
#define	AXE_172_CMD_WRITE_NODEID		0x6118

#define	AXE_CMD_READ_PHYID			0x2019
#define	AXE_172_CMD_READ_MEDIA			0x101A
#define	AXE_178_CMD_READ_MEDIA			0x201A
#define	AXE_CMD_WRITE_MEDIA			0x011B
#define	AXE_CMD_READ_MONITOR_MODE		0x101C
#define	AXE_CMD_WRITE_MONITOR_MODE		0x011D
#define	AXE_CMD_READ_GPIO			0x101E
#define	AXE_CMD_WRITE_GPIO			0x011F

#define	AXE_CMD_SW_RESET_REG			0x0120
#define	AXE_CMD_SW_PHY_STATUS			0x0021
#define	AXE_CMD_SW_PHY_SELECT			0x0122

#define	AXE_SW_RESET_CLEAR			0x00
#define	AXE_SW_RESET_RR				0x01
#define	AXE_SW_RESET_RT				0x02
#define	AXE_SW_RESET_PRTE			0x04
#define	AXE_SW_RESET_PRL			0x08
#define	AXE_SW_RESET_BZ				0x10
#define	AXE_SW_RESET_IPRL			0x20
#define	AXE_SW_RESET_IPPD			0x40

/* AX88178 documentation says to always write this bit... */
#define	AXE_178_RESET_MAGIC			0x40

#define	AXE_178_MEDIA_GMII			0x0001
#define	AXE_MEDIA_FULL_DUPLEX			0x0002
#define	AXE_172_MEDIA_TX_ABORT_ALLOW		0x0004

/* AX88178/88772 documentation says to always write 1 to bit 2 */
#define	AXE_178_MEDIA_MAGIC			0x0004
/* AX88772 documentation says to always write 0 to bit 3 */
#define	AXE_178_MEDIA_ENCK			0x0008
#define	AXE_172_MEDIA_FLOW_CONTROL_EN		0x0010
#define	AXE_178_MEDIA_RXFLOW_CONTROL_EN		0x0010
#define	AXE_178_MEDIA_TXFLOW_CONTROL_EN		0x0020
#define	AXE_178_MEDIA_JUMBO_EN			0x0040
#define	AXE_178_MEDIA_LTPF_ONLY			0x0080
#define	AXE_178_MEDIA_RX_EN			0x0100
#define	AXE_178_MEDIA_100TX			0x0200
#define	AXE_178_MEDIA_SBP			0x0800
#define	AXE_178_MEDIA_SUPERMAC			0x1000

#define	AXE_RXCMD_PROMISC			0x0001
#define	AXE_RXCMD_ALLMULTI			0x0002
#define	AXE_172_RXCMD_UNICAST			0x0004
#define	AXE_178_RXCMD_KEEP_INVALID_CRC		0x0004
#define	AXE_RXCMD_BROADCAST			0x0008
#define	AXE_RXCMD_MULTICAST			0x0010
#define	AXE_RXCMD_ENABLE			0x0080
#define	AXE_178_RXCMD_MFB_MASK			0x0300
#define	AXE_178_RXCMD_MFB_2048			0x0000
#define	AXE_178_RXCMD_MFB_4096			0x0100
#define	AXE_178_RXCMD_MFB_8192			0x0200
#define	AXE_178_RXCMD_MFB_16384			0x0300

#define	AXE_PHY_SEL_PRI		1
#define	AXE_PHY_SEL_SEC		0
#define	AXE_PHY_TYPE_MASK	0xE0
#define	AXE_PHY_TYPE_SHIFT	5
#define	AXE_PHY_TYPE(x)		\
	(((x) & AXE_PHY_TYPE_MASK) >> AXE_PHY_TYPE_SHIFT)

#define	PHY_TYPE_100_HOME	0	/* 10/100 or 1M HOME PHY */
#define	PHY_TYPE_GIG		1	/* Gigabit PHY */
#define	PHY_TYPE_SPECIAL	4	/* Special case */
#define	PHY_TYPE_RSVD		5	/* Reserved */
#define	PHY_TYPE_NON_SUP	7	/* Non-supported PHY */

#define	AXE_PHY_NO_MASK		0x1F
#define	AXE_PHY_NO(x)		((x) & AXE_PHY_NO_MASK)

#define	AXE_772_PHY_NO_EPHY	0x10	/* Embedded 10/100 PHY of AX88772 */

#define	AXE_GPIO0_EN		0x01
#define	AXE_GPIO0		0x02
#define	AXE_GPIO1_EN		0x04
#define	AXE_GPIO1		0x08
#define	AXE_GPIO2_EN		0x10
#define	AXE_GPIO2		0x20
#define	AXE_GPIO_RELOAD_EEPROM	0x80

#define	AXE_PHY_MODE_MARVELL		0x00
#define	AXE_PHY_MODE_CICADA		0x01
#define	AXE_PHY_MODE_AGERE		0x02
#define	AXE_PHY_MODE_CICADA_V2		0x05
#define	AXE_PHY_MODE_AGERE_GMII		0x06
#define	AXE_PHY_MODE_CICADA_V2_ASIX	0x09
#define	AXE_PHY_MODE_REALTEK_8211CL	0x0C
#define	AXE_PHY_MODE_REALTEK_8211BN	0x0D
#define	AXE_PHY_MODE_REALTEK_8251CL	0x0E
#define	AXE_PHY_MODE_ATTANSIC		0x40

#define	AXE_BULK_BUF_SIZE	16384	/* bytes */

#define	AXE_CTL_READ		0x01
#define	AXE_CTL_WRITE		0x02

#define	AXE_CONFIG_IDX		0	/* config number 1 */
#define	AXE_IFACE_IDX		0

struct axe_sframe_hdr {
	uint16_t len;
	uint16_t ilen;
} __packed;

#define	GET_MII(sc)		uether_getmii(&(sc)->sc_ue)

/* The interrupt endpoint is currently unused by the ASIX part. */
enum {
	AXE_BULK_DT_WR,
	AXE_BULK_DT_RD,
	AXE_N_TRANSFER,
};

struct axe_softc {
	struct usb_ether	sc_ue;
	struct mtx		sc_mtx;
	struct usb_xfer	*sc_xfer[AXE_N_TRANSFER];
	int			sc_phyno;

	int			sc_flags;
#define	AXE_FLAG_LINK		0x0001
#define	AXE_FLAG_772		0x1000	/* AX88772 */
#define	AXE_FLAG_178		0x2000	/* AX88178 */

	uint8_t			sc_ipgs[3];
	uint8_t			sc_phyaddrs[2];
};

#define	AXE_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
#define	AXE_UNLOCK(_sc)		mtx_unlock(&(_sc)->sc_mtx)
#define	AXE_LOCK_ASSERT(_sc, t)	mtx_assert(&(_sc)->sc_mtx, t)