/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2012 * Ben Gray . * 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. * * THIS SOFTWARE IS PROVIDED BY AUTHOR 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 AUTHOR OR CONTRIBUTORS 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. */ #ifndef _IF_SMSCREG_H_ #define _IF_SMSCREG_H_ /* * Definitions for the SMSC LAN9514 and LAN9514 USB to ethernet controllers. * * This information was gleaned from the SMSC driver in the linux kernel, where * it is Copyrighted (C) 2007-2008 SMSC. * */ /** * TRANSMIT FRAMES * --------------- * Tx frames are prefixed with an 8-byte header which describes the frame * * 4 bytes 4 bytes variable * +------------+------------+--- . . . . . . . . . . . . ---+ * | TX_CTRL_0 | TX_CTRL_1 | Ethernet frame data | * +------------+------------+--- . . . . . . . . . . . . ---+ * * Where the headers have the following fields: * * TX_CTRL_0 <20:16> Data offset * TX_CTRL_0 <13> First segment of frame indicator * TX_CTRL_0 <12> Last segment of frame indicator * TX_CTRL_0 <10:0> Buffer size (?) * * TX_CTRL_1 <14> Perform H/W checksuming on IP packets * TX_CTRL_1 <13> Disable automatic ethernet CRC generation * TX_CTRL_1 <12> Disable padding (?) * TX_CTRL_1 <10:0> Packet byte length * */ #define SMSC_TX_CTRL_0_OFFSET(x) (((x) & 0x1FUL) << 16) #define SMSC_TX_CTRL_0_FIRST_SEG (0x1UL << 13) #define SMSC_TX_CTRL_0_LAST_SEG (0x1UL << 12) #define SMSC_TX_CTRL_0_BUF_SIZE(x) ((x) & 0x000007FFUL) #define SMSC_TX_CTRL_1_CSUM_ENABLE (0x1UL << 14) #define SMSC_TX_CTRL_1_CRC_DISABLE (0x1UL << 13) #define SMSC_TX_CTRL_1_PADDING_DISABLE (0x1UL << 12) #define SMSC_TX_CTRL_1_PKT_LENGTH(x) ((x) & 0x000007FFUL) /** * RECEIVE FRAMES * -------------- * Rx frames are prefixed with an 4-byte status header which describes any * errors with the frame as well as things like the length * * 4 bytes variable * +------------+--- . . . . . . . . . . . . ---+ * | RX_STAT | Ethernet frame data | * +------------+--- . . . . . . . . . . . . ---+ * * Where the status header has the following fields: * * RX_STAT <30> Filter Fail * RX_STAT <29:16> Frame Length * RX_STAT <15> Error Summary * RX_STAT <13> Broadcast Frame * RX_STAT <12> Length Error * RX_STAT <11> Runt Frame * RX_STAT <10> Multicast Frame * RX_STAT <7> Frame too long * RX_STAT <6> Collision Seen * RX_STAT <5> Frame Type * RX_STAT <4> Receive Watchdog * RX_STAT <3> Mii Error * RX_STAT <2> Dribbling * RX_STAT <1> CRC Error * */ #define SMSC_RX_STAT_FILTER_FAIL (0x1UL << 30) #define SMSC_RX_STAT_FRM_LENGTH(x) (((x) >> 16) & 0x3FFFUL) #define SMSC_RX_STAT_ERROR (0x1UL << 15) #define SMSC_RX_STAT_BROADCAST (0x1UL << 13) #define SMSC_RX_STAT_LENGTH_ERROR (0x1UL << 12) #define SMSC_RX_STAT_RUNT (0x1UL << 11) #define SMSC_RX_STAT_MULTICAST (0x1UL << 10) #define SMSC_RX_STAT_FRM_TO_LONG (0x1UL << 7) #define SMSC_RX_STAT_COLLISION (0x1UL << 6) #define SMSC_RX_STAT_FRM_TYPE (0x1UL << 5) #define SMSC_RX_STAT_WATCHDOG (0x1UL << 4) #define SMSC_RX_STAT_MII_ERROR (0x1UL << 3) #define SMSC_RX_STAT_DRIBBLING (0x1UL << 2) #define SMSC_RX_STAT_CRC_ERROR (0x1UL << 1) /** * REGISTERS * */ #define SMSC_ID_REV 0x000 #define SMSC_INTR_STATUS 0x008 #define SMSC_RX_CFG 0x00C #define SMSC_TX_CFG 0x010 #define SMSC_HW_CFG 0x014 #define SMSC_PM_CTRL 0x020 #define SMSC_LED_GPIO_CFG 0x024 #define SMSC_GPIO_CFG 0x028 #define SMSC_AFC_CFG 0x02C #define SMSC_EEPROM_CMD 0x030 #define SMSC_EEPROM_DATA 0x034 #define SMSC_BURST_CAP 0x038 #define SMSC_GPIO_WAKE 0x064 #define SMSC_INTR_CFG 0x068 #define SMSC_BULK_IN_DLY 0x06C #define SMSC_MAC_CSR 0x100 #define SMSC_MAC_ADDRH 0x104 #define SMSC_MAC_ADDRL 0x108 #define SMSC_HASHH 0x10C #define SMSC_HASHL 0x110 #define SMSC_MII_ADDR 0x114 #define SMSC_MII_DATA 0x118 #define SMSC_FLOW 0x11C #define SMSC_VLAN1 0x120 #define SMSC_VLAN2 0x124 #define SMSC_WUFF 0x128 #define SMSC_WUCSR 0x12C #define SMSC_COE_CTRL 0x130 /* ID / Revision register */ #define SMSC_ID_REV_CHIP_ID_MASK 0xFFFF0000UL #define SMSC_ID_REV_CHIP_REV_MASK 0x0000FFFFUL #define SMSC_RX_FIFO_FLUSH (0x1UL << 0) #define SMSC_TX_CFG_ON (0x1UL << 2) #define SMSC_TX_CFG_STOP (0x1UL << 1) #define SMSC_TX_CFG_FIFO_FLUSH (0x1UL << 0) #define SMSC_HW_CFG_BIR (0x1UL << 12) #define SMSC_HW_CFG_LEDB (0x1UL << 11) #define SMSC_HW_CFG_RXDOFF (0x3UL << 9) /* RX pkt alignment */ #define SMSC_HW_CFG_DRP (0x1UL << 6) #define SMSC_HW_CFG_MEF (0x1UL << 5) #define SMSC_HW_CFG_LRST (0x1UL << 3) /* Lite reset */ #define SMSC_HW_CFG_PSEL (0x1UL << 2) #define SMSC_HW_CFG_BCE (0x1UL << 1) #define SMSC_HW_CFG_SRST (0x1UL << 0) #define SMSC_PM_CTRL_PHY_RST (0x1UL << 4) /* PHY reset */ #define SMSC_LED_GPIO_CFG_SPD_LED (0x1UL << 24) #define SMSC_LED_GPIO_CFG_LNK_LED (0x1UL << 20) #define SMSC_LED_GPIO_CFG_FDX_LED (0x1UL << 16) /* Hi watermark = 15.5Kb (~10 mtu pkts) */ /* low watermark = 3k (~2 mtu pkts) */ /* backpressure duration = ~ 350us */ /* Apply FC on any frame. */ #define AFC_CFG_DEFAULT (0x00F830A1) #define SMSC_EEPROM_CMD_BUSY (0x1UL << 31) #define SMSC_EEPROM_CMD_MASK (0x7UL << 28) #define SMSC_EEPROM_CMD_READ (0x0UL << 28) #define SMSC_EEPROM_CMD_WRITE (0x3UL << 28) #define SMSC_EEPROM_CMD_ERASE (0x5UL << 28) #define SMSC_EEPROM_CMD_RELOAD (0x7UL << 28) #define SMSC_EEPROM_CMD_TIMEOUT (0x1UL << 10) #define SMSC_EEPROM_CMD_ADDR_MASK 0x000001FFUL /* MAC Control and Status Register */ #define SMSC_MAC_CSR_RCVOWN (0x1UL << 23) /* Half duplex */ #define SMSC_MAC_CSR_LOOPBK (0x1UL << 21) /* Loopback */ #define SMSC_MAC_CSR_FDPX (0x1UL << 20) /* Full duplex */ #define SMSC_MAC_CSR_MCPAS (0x1UL << 19) /* Multicast mode */ #define SMSC_MAC_CSR_PRMS (0x1UL << 18) /* Promiscuous mode */ #define SMSC_MAC_CSR_INVFILT (0x1UL << 17) /* Inverse filtering */ #define SMSC_MAC_CSR_PASSBAD (0x1UL << 16) /* Pass on bad frames */ #define SMSC_MAC_CSR_HPFILT (0x1UL << 13) /* Hash filtering */ #define SMSC_MAC_CSR_BCAST (0x1UL << 11) /* Broadcast */ #define SMSC_MAC_CSR_TXEN (0x1UL << 3) /* TX enable */ #define SMSC_MAC_CSR_RXEN (0x1UL << 2) /* RX enable */ /* Interrupt control register */ #define SMSC_INTR_NTEP (0x1UL << 31) #define SMSC_INTR_MACRTO (0x1UL << 19) #define SMSC_INTR_TX_STOP (0x1UL << 17) #define SMSC_INTR_RX_STOP (0x1UL << 16) #define SMSC_INTR_PHY_INT (0x1UL << 15) #define SMSC_INTR_TXE (0x1UL << 14) #define SMSC_INTR_TDFU (0x1UL << 13) #define SMSC_INTR_TDFO (0x1UL << 12) #define SMSC_INTR_RXDF (0x1UL << 11) #define SMSC_INTR_GPIOS 0x000007FFUL /* Phy MII interface register */ #define SMSC_MII_WRITE (0x1UL << 1) #define SMSC_MII_READ (0x0UL << 1) #define SMSC_MII_BUSY (0x1UL << 0) /* H/W checksum register */ #define SMSC_COE_CTRL_TX_EN (0x1UL << 16) /* Tx H/W csum enable */ #define SMSC_COE_CTRL_RX_MODE (0x1UL << 1) #define SMSC_COE_CTRL_RX_EN (0x1UL << 0) /* Rx H/W csum enable */ /* Registers on the phy, accessed via MII/MDIO */ #define SMSC_PHY_INTR_STAT (29) #define SMSC_PHY_INTR_MASK (30) #define SMSC_PHY_INTR_ENERGY_ON (0x1U << 7) #define SMSC_PHY_INTR_ANEG_COMP (0x1U << 6) #define SMSC_PHY_INTR_REMOTE_FAULT (0x1U << 5) #define SMSC_PHY_INTR_LINK_DOWN (0x1U << 4) /* USB Vendor Requests */ #define SMSC_UR_WRITE_REG 0xA0 #define SMSC_UR_READ_REG 0xA1 #define SMSC_UR_GET_STATS 0xA2 #define SMSC_CONFIG_INDEX 0 /* config number 1 */ #define SMSC_IFACE_IDX 0 /* * USB endpoints. */ enum { SMSC_BULK_DT_RD, SMSC_BULK_DT_WR, /* the LAN9514 device does support interrupt endpoints, however I couldn't * get then to work reliably and since they are unneeded (poll the mii * status) they are unused. * SMSC_INTR_DT_WR, * SMSC_INTR_DT_RD, */ SMSC_N_TRANSFER, }; struct smsc_softc { struct usb_ether sc_ue; struct mtx sc_mtx; struct usb_xfer *sc_xfer[SMSC_N_TRANSFER]; int sc_phyno; /* The following stores the settings in the mac control (MAC_CSR) register */ uint32_t sc_mac_csr; uint32_t sc_rev_id; uint32_t sc_flags; #define SMSC_FLAG_LINK 0x0001 #define SMSC_FLAG_LAN9514 0x1000 /* LAN9514 */ }; #define SMSC_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) #define SMSC_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) #define SMSC_LOCK_ASSERT(_sc, t) mtx_assert(&(_sc)->sc_mtx, t) #endif /* _IF_SMSCREG_H_ */