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if_smscreg.h revision 1.3
      1 /*	$NetBSD: if_smscreg.h,v 1.3 2013/04/03 15:57:44 skrll Exp $	*/
      2 
      3 /*	$OpenBSD: if_smscreg.h,v 1.2 2012/09/27 12:38:11 jsg Exp $	*/
      4 /*-
      5  * Copyright (c) 2012
      6  *	Ben Gray <bgray (at) freebsd.org>.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  *
     30  * $FreeBSD: src/sys/dev/usb/net/if_smscreg.h,v 1.1 2012/08/15 04:03:55 gonzo Exp $
     31  */
     32 #ifndef _IF_SMSCREG_H_
     33 #define _IF_SMSCREG_H_
     34 
     35 /*
     36  * Definitions for the SMSC LAN9514 and LAN9514 USB to ethernet controllers.
     37  *
     38  * This information was gleaned from the SMSC driver in the linux kernel, where
     39  * it is Copyrighted (C) 2007-2008 SMSC.
     40  *
     41  */
     42 
     43 /*
     44  * TRANSMIT FRAMES
     45  * ---------------
     46  *   Tx frames are prefixed with an 8-byte header which describes the frame
     47  *
     48  *         4 bytes      4 bytes           variable
     49  *      +------------+------------+--- . . . . . . . . . . . . ---+
     50  *      | TX_CTRL_0  | TX_CTRL_1  |  Ethernet frame data          |
     51  *      +------------+------------+--- . . . . . . . . . . . . ---+
     52  *
     53  *   Where the headers have the following fields:
     54  *
     55  *      TX_CTRL_0 <20:16>  Data offset
     56  *      TX_CTRL_0 <13>     First segment of frame indicator
     57  *      TX_CTRL_0 <12>     Last segment of frame indicator
     58  *      TX_CTRL_0 <10:0>   Buffer size (?)
     59  *
     60  *      TX_CTRL_1 <14>     Perform H/W checksuming on IP packets
     61  *      TX_CTRL_1 <13>     Disable automatic ethernet CRC generation
     62  *      TX_CTRL_1 <12>     Disable padding (?)
     63  *      TX_CTRL_1 <10:0>   Packet byte length
     64  *
     65  */
     66 #define SMSC_TX_CTRL_0_OFFSET(x)	(((x) & 0x1FUL) << 16)
     67 #define SMSC_TX_CTRL_0_FIRST_SEG	(0x1UL << 13)
     68 #define SMSC_TX_CTRL_0_LAST_SEG		(0x1UL << 12)
     69 #define SMSC_TX_CTRL_0_BUF_SIZE(x)	((x) & 0x000007FFUL)
     70 
     71 #define SMSC_TX_CTRL_1_CSUM_ENABLE	(0x1UL << 14)
     72 #define SMSC_TX_CTRL_1_CRC_DISABLE	(0x1UL << 13)
     73 #define SMSC_TX_CTRL_1_PADDING_DISABLE	(0x1UL << 12)
     74 #define SMSC_TX_CTRL_1_PKT_LENGTH(x)	((x) & 0x000007FFUL)
     75 
     76 /*
     77  * RECEIVE FRAMES
     78  * --------------
     79  *   Rx frames are prefixed with an 4-byte status header which describes any
     80  *   errors with the frame as well as things like the length
     81  *
     82  *         4 bytes             variable
     83  *      +------------+--- . . . . . . . . . . . . ---+
     84  *      |   RX_STAT  |  Ethernet frame data          |
     85  *      +------------+--- . . . . . . . . . . . . ---+
     86  *
     87  *   Where the status header has the following fields:
     88  *
     89  *      RX_STAT   <30>     Filter Fail
     90  *      RX_STAT   <29:16>  Frame Length
     91  *      RX_STAT   <15>     Error Summary
     92  *      RX_STAT   <13>     Broadcast Frame
     93  *      RX_STAT   <12>     Length Error
     94  *      RX_STAT   <11>     Runt Frame
     95  *      RX_STAT   <10>     Multicast Frame
     96  *      RX_STAT   <7>      Frame too long
     97  *      RX_STAT   <6>      Collision Seen
     98  *      RX_STAT   <5>      Frame Type
     99  *      RX_STAT   <4>      Receive Watchdog
    100  *      RX_STAT   <3>      Mii Error
    101  *      RX_STAT   <2>      Dribbling
    102  *      RX_STAT   <1>      CRC Error
    103  *
    104  */
    105 #define SMSC_RX_STAT_FILTER_FAIL	(0x1UL << 30)
    106 #define SMSC_RX_STAT_FRM_LENGTH(x)	(((x) >> 16) & 0x3FFFUL)
    107 #define SMSC_RX_STAT_ERROR		(0x1UL << 15)
    108 #define SMSC_RX_STAT_BROADCAST		(0x1UL << 13)
    109 #define SMSC_RX_STAT_LENGTH_ERROR	(0x1UL << 12)
    110 #define SMSC_RX_STAT_RUNT		(0x1UL << 11)
    111 #define SMSC_RX_STAT_MULTICAST		(0x1UL << 10)
    112 #define SMSC_RX_STAT_FRM_TOO_LONG	(0x1UL << 7)
    113 #define SMSC_RX_STAT_COLLISION		(0x1UL << 6)
    114 #define SMSC_RX_STAT_FRM_TYPE		(0x1UL << 5)
    115 #define SMSC_RX_STAT_WATCHDOG		(0x1UL << 4)
    116 #define SMSC_RX_STAT_MII_ERROR		(0x1UL << 3)
    117 #define SMSC_RX_STAT_DRIBBLING		(0x1UL << 2)
    118 #define SMSC_RX_STAT_CRC_ERROR		(0x1UL << 1)
    119 
    120 /*
    121  * REGISTERS
    122  */
    123 #define SMSC_ID_REV		0x000
    124 #define SMSC_INTR_STATUS	0x008
    125 #define SMSC_RX_CFG		0x00C
    126 #define SMSC_TX_CFG		0x010
    127 #define SMSC_HW_CFG		0x014
    128 #define SMSC_PM_CTRL		0x020
    129 #define SMSC_LED_GPIO_CFG	0x024
    130 #define SMSC_GPIO_CFG		0x028
    131 #define SMSC_AFC_CFG		0x02C
    132 #define SMSC_EEPROM_CMD		0x030
    133 #define SMSC_EEPROM_DATA	0x034
    134 #define SMSC_BURST_CAP		0x038
    135 #define SMSC_GPIO_WAKE		0x064
    136 #define SMSC_INTR_CFG		0x068
    137 #define SMSC_BULK_IN_DLY	0x06C
    138 #define SMSC_MAC_CSR		0x100
    139 #define SMSC_MAC_ADDRH		0x104
    140 #define SMSC_MAC_ADDRL		0x108
    141 #define SMSC_HASHH		0x10C
    142 #define SMSC_HASHL		0x110
    143 #define SMSC_MII_ADDR		0x114
    144 #define SMSC_MII_DATA		0x118
    145 #define SMSC_FLOW		0x11C
    146 #define SMSC_VLAN1		0x120
    147 #define SMSC_VLAN2		0x124
    148 #define SMSC_WUFF		0x128
    149 #define SMSC_WUCSR		0x12C
    150 #define SMSC_COE_CTRL		0x130
    151 
    152 /* ID / Revision register */
    153 #define SMSC_ID_REV_CHIP_ID_MASK	0xFFFF0000UL
    154 #define SMSC_ID_REV_CHIP_REV_MASK	0x0000FFFFUL
    155 
    156 #define SMSC_RX_FIFO_FLUSH		(0x1UL << 0)
    157 
    158 #define SMSC_TX_CFG_ON			(0x1UL << 2)
    159 #define SMSC_TX_CFG_STOP		(0x1UL << 1)
    160 #define SMSC_TX_CFG_FIFO_FLUSH		(0x1UL << 0)
    161 
    162 #define SMSC_HW_CFG_BIR			(0x1UL << 12)
    163 #define SMSC_HW_CFG_LEDB		(0x1UL << 11)
    164 #define SMSC_HW_CFG_RXDOFF		(0x3UL << 9)    /* RX pkt alignment */
    165 #define SMSC_HW_CFG_DRP			(0x1UL << 6)
    166 #define SMSC_HW_CFG_MEF			(0x1UL << 5)
    167 #define SMSC_HW_CFG_LRST		(0x1UL << 3)    /* Lite reset */
    168 #define SMSC_HW_CFG_PSEL		(0x1UL << 2)
    169 #define SMSC_HW_CFG_BCE			(0x1UL << 1)
    170 #define SMSC_HW_CFG_SRST		(0x1UL << 0)
    171 
    172 #define SMSC_PM_CTRL_PHY_RST		(0x1UL << 4)    /* PHY reset */
    173 
    174 #define SMSC_LED_GPIO_CFG_SPD_LED	(0x1UL << 24)
    175 #define SMSC_LED_GPIO_CFG_LNK_LED	(0x1UL << 20)
    176 #define SMSC_LED_GPIO_CFG_FDX_LED	(0x1UL << 16)
    177 
    178 /* Hi watermark = 15.5Kb (~10 mtu pkts) */
    179 /* low watermark = 3k (~2 mtu pkts) */
    180 /* backpressure duration = ~ 350us */
    181 /* Apply FC on any frame. */
    182 #define AFC_CFG_DEFAULT			(0x00F830A1)
    183 
    184 #define SMSC_EEPROM_CMD_BUSY		(0x1UL << 31)
    185 #define SMSC_EEPROM_CMD_MASK		(0x7UL << 28)
    186 #define SMSC_EEPROM_CMD_READ		(0x0UL << 28)
    187 #define SMSC_EEPROM_CMD_WRITE		(0x3UL << 28)
    188 #define SMSC_EEPROM_CMD_ERASE		(0x5UL << 28)
    189 #define SMSC_EEPROM_CMD_RELOAD		(0x7UL << 28)
    190 #define SMSC_EEPROM_CMD_TIMEOUT		(0x1UL << 10)
    191 #define SMSC_EEPROM_CMD_ADDR_MASK	0x000001FFUL
    192 
    193 /* MAC Control and Status Register */
    194 #define SMSC_MAC_CSR_RCVOWN		(0x1UL << 23)  /* Half duplex */
    195 #define SMSC_MAC_CSR_LOOPBK		(0x1UL << 21)  /* Loopback */
    196 #define SMSC_MAC_CSR_FDPX		(0x1UL << 20)  /* Full duplex */
    197 #define SMSC_MAC_CSR_MCPAS		(0x1UL << 19)  /* Multicast mode */
    198 #define SMSC_MAC_CSR_PRMS		(0x1UL << 18)  /* Promiscuous mode */
    199 #define SMSC_MAC_CSR_INVFILT		(0x1UL << 17)  /* Inverse filtering */
    200 #define SMSC_MAC_CSR_PASSBAD		(0x1UL << 16)  /* Pass on bad frames */
    201 #define SMSC_MAC_CSR_HPFILT		(0x1UL << 13)  /* Hash filtering */
    202 #define SMSC_MAC_CSR_BCAST		(0x1UL << 11)  /* Broadcast */
    203 #define SMSC_MAC_CSR_TXEN		(0x1UL << 3)   /* TX enable */
    204 #define SMSC_MAC_CSR_RXEN		(0x1UL << 2)   /* RX enable */
    205 
    206 /* Interrupt control register */
    207 #define SMSC_INTR_NTEP			(0x1UL << 31)
    208 #define SMSC_INTR_MACRTO		(0x1UL << 19)
    209 #define SMSC_INTR_TX_STOP		(0x1UL << 17)
    210 #define SMSC_INTR_RX_STOP		(0x1UL << 16)
    211 #define SMSC_INTR_PHY_INT		(0x1UL << 15)
    212 #define SMSC_INTR_TXE			(0x1UL << 14)
    213 #define SMSC_INTR_TDFU			(0x1UL << 13)
    214 #define SMSC_INTR_TDFO			(0x1UL << 12)
    215 #define SMSC_INTR_RXDF			(0x1UL << 11)
    216 #define SMSC_INTR_GPIOS			0x000007FFUL
    217 
    218 /* Phy MII interface register */
    219 #define SMSC_MII_WRITE			(0x1UL << 1)
    220 #define SMSC_MII_READ			(0x0UL << 1)
    221 #define SMSC_MII_BUSY			(0x1UL << 0)
    222 
    223 /* H/W checksum register */
    224 #define SMSC_COE_CTRL_TX_EN		(0x1UL << 16)  /* Tx H/W csum enable */
    225 #define SMSC_COE_CTRL_RX_MODE		(0x1UL << 1)
    226 #define SMSC_COE_CTRL_RX_EN		(0x1UL << 0)   /* Rx H/W csum enable */
    227 
    228 /* Registers on the phy, accessed via MII/MDIO */
    229 #define SMSC_PHY_INTR_STAT		(29)
    230 #define SMSC_PHY_INTR_MASK		(30)
    231 
    232 #define SMSC_PHY_INTR_ENERGY_ON		(0x1U << 7)
    233 #define SMSC_PHY_INTR_ANEG_COMP		(0x1U << 6)
    234 #define SMSC_PHY_INTR_REMOTE_FAULT	(0x1U << 5)
    235 #define SMSC_PHY_INTR_LINK_DOWN		(0x1U << 4)
    236 
    237 /* USB Vendor Requests */
    238 #define SMSC_UR_WRITE_REG	0xA0
    239 #define SMSC_UR_READ_REG	0xA1
    240 #define SMSC_UR_GET_STATS	0xA2
    241 
    242 #define SMSC_RX_LIST_CNT	1
    243 #define SMSC_TX_LIST_CNT	1
    244 
    245 #define	SMSC_CONFIG_INDEX	1	/* config number 1 */
    246 #define	SMSC_IFACE_IDX		0
    247 
    248 #define SMSC_ENDPT_RX		0
    249 #define SMSC_ENDPT_TX		1
    250 #define SMSC_ENDPT_INTR		2
    251 #define SMSC_ENDPT_MAX		3
    252 
    253 #define SMSC_MIN_BUFSZ		2048
    254 #define SMSC_MAX_BUFSZ		18944
    255 
    256 #endif  /* _IF_SMSCREG_H_ */
    257