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if_smscreg.h revision 1.2.2.2
      1 /*	$OpenBSD: if_smscreg.h,v 1.2 2012/09/27 12:38:11 jsg Exp $	*/
      2 /*-
      3  * Copyright (c) 2012
      4  *	Ben Gray <bgray (at) freebsd.org>.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  *
     28  * $FreeBSD: src/sys/dev/usb/net/if_smscreg.h,v 1.1 2012/08/15 04:03:55 gonzo Exp $
     29  */
     30 #ifndef _IF_SMSCREG_H_
     31 #define _IF_SMSCREG_H_
     32 
     33 /*
     34  * Definitions for the SMSC LAN9514 and LAN9514 USB to ethernet controllers.
     35  *
     36  * This information was gleaned from the SMSC driver in the linux kernel, where
     37  * it is Copyrighted (C) 2007-2008 SMSC.
     38  *
     39  */
     40 
     41 /**
     42  * TRANSMIT FRAMES
     43  * ---------------
     44  *   Tx frames are prefixed with an 8-byte header which describes the frame
     45  *
     46  *         4 bytes      4 bytes           variable
     47  *      +------------+------------+--- . . . . . . . . . . . . ---+
     48  *      | TX_CTRL_0  | TX_CTRL_1  |  Ethernet frame data          |
     49  *      +------------+------------+--- . . . . . . . . . . . . ---+
     50  *
     51  *   Where the headers have the following fields:
     52  *
     53  *      TX_CTRL_0 <20:16>  Data offset
     54  *      TX_CTRL_0 <13>     First segment of frame indicator
     55  *      TX_CTRL_0 <12>     Last segment of frame indicator
     56  *      TX_CTRL_0 <10:0>   Buffer size (?)
     57  *
     58  *      TX_CTRL_1 <14>     Perform H/W checksuming on IP packets
     59  *      TX_CTRL_1 <13>     Disable automatic ethernet CRC generation
     60  *      TX_CTRL_1 <12>     Disable padding (?)
     61  *      TX_CTRL_1 <10:0>   Packet byte length
     62  *
     63  */
     64 #define SMSC_TX_CTRL_0_OFFSET(x)         (((x) & 0x1FUL) << 16)
     65 #define SMSC_TX_CTRL_0_FIRST_SEG         (0x1UL << 13)
     66 #define SMSC_TX_CTRL_0_LAST_SEG          (0x1UL << 12)
     67 #define SMSC_TX_CTRL_0_BUF_SIZE(x)       ((x) & 0x000007FFUL)
     68 
     69 #define SMSC_TX_CTRL_1_CSUM_ENABLE       (0x1UL << 14)
     70 #define SMSC_TX_CTRL_1_CRC_DISABLE       (0x1UL << 13)
     71 #define SMSC_TX_CTRL_1_PADDING_DISABLE   (0x1UL << 12)
     72 #define SMSC_TX_CTRL_1_PKT_LENGTH(x)     ((x) & 0x000007FFUL)
     73 
     74 /**
     75  * RECEIVE FRAMES
     76  * --------------
     77  *   Rx frames are prefixed with an 4-byte status header which describes any
     78  *   errors with the frame as well as things like the length
     79  *
     80  *         4 bytes             variable
     81  *      +------------+--- . . . . . . . . . . . . ---+
     82  *      |   RX_STAT  |  Ethernet frame data          |
     83  *      +------------+--- . . . . . . . . . . . . ---+
     84  *
     85  *   Where the status header has the following fields:
     86  *
     87  *      RX_STAT   <30>     Filter Fail
     88  *      RX_STAT   <29:16>  Frame Length
     89  *      RX_STAT   <15>     Error Summary
     90  *      RX_STAT   <13>     Broadcast Frame
     91  *      RX_STAT   <12>     Length Error
     92  *      RX_STAT   <11>     Runt Frame
     93  *      RX_STAT   <10>     Multicast Frame
     94  *      RX_STAT   <7>      Frame too long
     95  *      RX_STAT   <6>      Collision Seen
     96  *      RX_STAT   <5>      Frame Type
     97  *      RX_STAT   <4>      Receive Watchdog
     98  *      RX_STAT   <3>      Mii Error
     99  *      RX_STAT   <2>      Dribbling
    100  *      RX_STAT   <1>      CRC Error
    101  *
    102  */
    103 #define SMSC_RX_STAT_FILTER_FAIL         (0x1UL << 30)
    104 #define SMSC_RX_STAT_FRM_LENGTH(x)       (((x) >> 16) & 0x3FFFUL)
    105 #define SMSC_RX_STAT_ERROR               (0x1UL << 15)
    106 #define SMSC_RX_STAT_BROADCAST           (0x1UL << 13)
    107 #define SMSC_RX_STAT_LENGTH_ERROR        (0x1UL << 12)
    108 #define SMSC_RX_STAT_RUNT                (0x1UL << 11)
    109 #define SMSC_RX_STAT_MULTICAST           (0x1UL << 10)
    110 #define SMSC_RX_STAT_FRM_TO_LONG         (0x1UL << 7)
    111 #define SMSC_RX_STAT_COLLISION           (0x1UL << 6)
    112 #define SMSC_RX_STAT_FRM_TYPE            (0x1UL << 5)
    113 #define SMSC_RX_STAT_WATCHDOG            (0x1UL << 4)
    114 #define SMSC_RX_STAT_MII_ERROR           (0x1UL << 3)
    115 #define SMSC_RX_STAT_DRIBBLING           (0x1UL << 2)
    116 #define SMSC_RX_STAT_CRC_ERROR           (0x1UL << 1)
    117 
    118 /**
    119  * REGISTERS
    120  *
    121  */
    122 #define SMSC_ID_REV                 0x000
    123 #define SMSC_INTR_STATUS            0x008
    124 #define SMSC_RX_CFG                 0x00C
    125 #define SMSC_TX_CFG                 0x010
    126 #define SMSC_HW_CFG                 0x014
    127 #define SMSC_PM_CTRL                0x020
    128 #define SMSC_LED_GPIO_CFG           0x024
    129 #define SMSC_GPIO_CFG               0x028
    130 #define SMSC_AFC_CFG                0x02C
    131 #define SMSC_EEPROM_CMD             0x030
    132 #define SMSC_EEPROM_DATA            0x034
    133 #define SMSC_BURST_CAP              0x038
    134 #define SMSC_GPIO_WAKE              0x064
    135 #define SMSC_INTR_CFG               0x068
    136 #define SMSC_BULK_IN_DLY            0x06C
    137 #define SMSC_MAC_CSR                0x100
    138 #define SMSC_MAC_ADDRH              0x104
    139 #define SMSC_MAC_ADDRL              0x108
    140 #define SMSC_HASHH                  0x10C
    141 #define SMSC_HASHL                  0x110
    142 #define SMSC_MII_ADDR               0x114
    143 #define SMSC_MII_DATA               0x118
    144 #define SMSC_FLOW                   0x11C
    145 #define SMSC_VLAN1                  0x120
    146 #define SMSC_VLAN2                  0x124
    147 #define SMSC_WUFF                   0x128
    148 #define SMSC_WUCSR                  0x12C
    149 #define SMSC_COE_CTRL               0x130
    150 
    151 /* ID / Revision register */
    152 #define SMSC_ID_REV_CHIP_ID_MASK    0xFFFF0000UL
    153 #define SMSC_ID_REV_CHIP_REV_MASK   0x0000FFFFUL
    154 
    155 #define SMSC_RX_FIFO_FLUSH          (0x1UL << 0)
    156 
    157 #define SMSC_TX_CFG_ON              (0x1UL << 2)
    158 #define SMSC_TX_CFG_STOP            (0x1UL << 1)
    159 #define SMSC_TX_CFG_FIFO_FLUSH      (0x1UL << 0)
    160 
    161 #define SMSC_HW_CFG_BIR             (0x1UL << 12)
    162 #define SMSC_HW_CFG_LEDB            (0x1UL << 11)
    163 #define SMSC_HW_CFG_RXDOFF          (0x3UL << 9)    /* RX pkt alignment */
    164 #define SMSC_HW_CFG_DRP             (0x1UL << 6)
    165 #define SMSC_HW_CFG_MEF             (0x1UL << 5)
    166 #define SMSC_HW_CFG_LRST            (0x1UL << 3)    /* Lite reset */
    167 #define SMSC_HW_CFG_PSEL            (0x1UL << 2)
    168 #define SMSC_HW_CFG_BCE             (0x1UL << 1)
    169 #define SMSC_HW_CFG_SRST            (0x1UL << 0)
    170 
    171 #define SMSC_PM_CTRL_PHY_RST        (0x1UL << 4)    /* PHY reset */
    172 
    173 #define SMSC_LED_GPIO_CFG_SPD_LED   (0x1UL << 24)
    174 #define SMSC_LED_GPIO_CFG_LNK_LED   (0x1UL << 20)
    175 #define SMSC_LED_GPIO_CFG_FDX_LED   (0x1UL << 16)
    176 
    177 /* Hi watermark = 15.5Kb (~10 mtu pkts) */
    178 /* low watermark = 3k (~2 mtu pkts) */
    179 /* backpressure duration = ~ 350us */
    180 /* Apply FC on any frame. */
    181 #define AFC_CFG_DEFAULT             (0x00F830A1)
    182 
    183 #define SMSC_EEPROM_CMD_BUSY        (0x1UL << 31)
    184 #define SMSC_EEPROM_CMD_MASK        (0x7UL << 28)
    185 #define SMSC_EEPROM_CMD_READ        (0x0UL << 28)
    186 #define SMSC_EEPROM_CMD_WRITE       (0x3UL << 28)
    187 #define SMSC_EEPROM_CMD_ERASE       (0x5UL << 28)
    188 #define SMSC_EEPROM_CMD_RELOAD      (0x7UL << 28)
    189 #define SMSC_EEPROM_CMD_TIMEOUT     (0x1UL << 10)
    190 #define SMSC_EEPROM_CMD_ADDR_MASK   0x000001FFUL
    191 
    192 /* MAC Control and Status Register */
    193 #define SMSC_MAC_CSR_RCVOWN         (0x1UL << 23)  /* Half duplex */
    194 #define SMSC_MAC_CSR_LOOPBK         (0x1UL << 21)  /* Loopback */
    195 #define SMSC_MAC_CSR_FDPX           (0x1UL << 20)  /* Full duplex */
    196 #define SMSC_MAC_CSR_MCPAS          (0x1UL << 19)  /* Multicast mode */
    197 #define SMSC_MAC_CSR_PRMS           (0x1UL << 18)  /* Promiscuous mode */
    198 #define SMSC_MAC_CSR_INVFILT        (0x1UL << 17)  /* Inverse filtering */
    199 #define SMSC_MAC_CSR_PASSBAD        (0x1UL << 16)  /* Pass on bad frames */
    200 #define SMSC_MAC_CSR_HPFILT         (0x1UL << 13)  /* Hash filtering */
    201 #define SMSC_MAC_CSR_BCAST          (0x1UL << 11)  /* Broadcast */
    202 #define SMSC_MAC_CSR_TXEN           (0x1UL << 3)   /* TX enable */
    203 #define SMSC_MAC_CSR_RXEN           (0x1UL << 2)   /* RX enable */
    204 
    205 /* Interrupt control register */
    206 #define SMSC_INTR_NTEP              (0x1UL << 31)
    207 #define SMSC_INTR_MACRTO            (0x1UL << 19)
    208 #define SMSC_INTR_TX_STOP           (0x1UL << 17)
    209 #define SMSC_INTR_RX_STOP           (0x1UL << 16)
    210 #define SMSC_INTR_PHY_INT           (0x1UL << 15)
    211 #define SMSC_INTR_TXE               (0x1UL << 14)
    212 #define SMSC_INTR_TDFU              (0x1UL << 13)
    213 #define SMSC_INTR_TDFO              (0x1UL << 12)
    214 #define SMSC_INTR_RXDF              (0x1UL << 11)
    215 #define SMSC_INTR_GPIOS             0x000007FFUL
    216 
    217 /* Phy MII interface register */
    218 #define SMSC_MII_WRITE              (0x1UL << 1)
    219 #define SMSC_MII_READ               (0x0UL << 1)
    220 #define SMSC_MII_BUSY               (0x1UL << 0)
    221 
    222 /* H/W checksum register */
    223 #define SMSC_COE_CTRL_TX_EN         (0x1UL << 16)  /* Tx H/W csum enable */
    224 #define SMSC_COE_CTRL_RX_MODE       (0x1UL << 1)
    225 #define SMSC_COE_CTRL_RX_EN         (0x1UL << 0)   /* Rx H/W csum enable */
    226 
    227 /* Registers on the phy, accessed via MII/MDIO */
    228 #define SMSC_PHY_INTR_STAT          (29)
    229 #define SMSC_PHY_INTR_MASK          (30)
    230 
    231 #define SMSC_PHY_INTR_ENERGY_ON     (0x1U << 7)
    232 #define SMSC_PHY_INTR_ANEG_COMP     (0x1U << 6)
    233 #define SMSC_PHY_INTR_REMOTE_FAULT  (0x1U << 5)
    234 #define SMSC_PHY_INTR_LINK_DOWN     (0x1U << 4)
    235 
    236 /* USB Vendor Requests */
    237 #define SMSC_UR_WRITE_REG   0xA0
    238 #define SMSC_UR_READ_REG    0xA1
    239 #define SMSC_UR_GET_STATS   0xA2
    240 
    241 #define SMSC_RX_LIST_CNT	1
    242 #define SMSC_TX_LIST_CNT	1
    243 
    244 #define	SMSC_CONFIG_INDEX	1	/* config number 1 */
    245 #define	SMSC_IFACE_IDX		0
    246 
    247 #define SMSC_ENDPT_RX		0
    248 #define SMSC_ENDPT_TX		1
    249 #define SMSC_ENDPT_INTR		2
    250 #define SMSC_ENDPT_MAX		3
    251 
    252 #define SMSC_MIN_BUFSZ		2048
    253 #define SMSC_MAX_BUFSZ		18944
    254 
    255 #endif  /* _IF_SMSCREG_H_ */
    256