249 lines
8.6 KiB
C
249 lines
8.6 KiB
C
/*-
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* Copyright (c) 1997 Semen Ustimenko
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#define EPIC_MAX_MTU 1600 /* This is experiment-derived value */
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/* PCI aux configuration registers */
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#define PCIR_BASEIO PCIR_BAR(0) /* Base IO Address */
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#define PCIR_BASEMEM PCIR_BAR(1) /* Base Memory Address */
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/* PCI identification */
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#define SMC_VENDORID 0x10B8
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#define SMC_DEVICEID_83C170 0x0005
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/* EPIC's registers */
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#define COMMAND 0x0000
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#define INTSTAT 0x0004 /* Interrupt status. See below */
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#define INTMASK 0x0008 /* Interrupt mask. See below */
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#define GENCTL 0x000C
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#define NVCTL 0x0010
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#define EECTL 0x0014 /* EEPROM control **/
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#define TEST1 0x001C /* XXXXX */
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#define CRCCNT 0x0020 /* CRC error counter */
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#define ALICNT 0x0024 /* FrameTooLang error counter */
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#define MPCNT 0x0028 /* MissedFrames error counters */
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#define MIICTL 0x0030
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#define MIIDATA 0x0034
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#define MIICFG 0x0038
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#define IPG 0x003C
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#define LAN0 0x0040 /* MAC address */
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#define LAN1 0x0044 /* MAC address */
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#define LAN2 0x0048 /* MAC address */
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#define ID_CHK 0x004C
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#define MC0 0x0050 /* Multicast filter table */
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#define MC1 0x0054 /* Multicast filter table */
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#define MC2 0x0058 /* Multicast filter table */
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#define MC3 0x005C /* Multicast filter table */
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#define RXCON 0x0060 /* Rx control register */
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#define TXCON 0x0070 /* Tx control register */
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#define TXSTAT 0x0074
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#define PRCDAR 0x0084 /* RxRing bus address */
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#define PRSTAT 0x00A4
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#define PRCPTHR 0x00B0
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#define PTCDAR 0x00C4 /* TxRing bus address */
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#define ETXTHR 0x00DC
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#define COMMAND_STOP_RX 0x01
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#define COMMAND_START_RX 0x02
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#define COMMAND_TXQUEUED 0x04
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#define COMMAND_RXQUEUED 0x08
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#define COMMAND_NEXTFRAME 0x10
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#define COMMAND_STOP_TDMA 0x20
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#define COMMAND_STOP_RDMA 0x40
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#define COMMAND_TXUGO 0x80
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/* Interrupt register bits */
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#define INTSTAT_RCC 0x00000001
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#define INTSTAT_HCC 0x00000002
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#define INTSTAT_RQE 0x00000004
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#define INTSTAT_OVW 0x00000008
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#define INTSTAT_RXE 0x00000010
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#define INTSTAT_TXC 0x00000020
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#define INTSTAT_TCC 0x00000040
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#define INTSTAT_TQE 0x00000080
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#define INTSTAT_TXU 0x00000100
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#define INTSTAT_CNT 0x00000200
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#define INTSTAT_PREI 0x00000400
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#define INTSTAT_RCT 0x00000800
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#define INTSTAT_FATAL 0x00001000 /* One of DPE,APE,PMA,PTA happened */
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#define INTSTAT_UNUSED1 0x00002000
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#define INTSTAT_UNUSED2 0x00004000
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#define INTSTAT_GP2 0x00008000 /* PHY Event */
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#define INTSTAT_INT_ACTV 0x00010000
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#define INTSTAT_RXIDLE 0x00020000
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#define INTSTAT_TXIDLE 0x00040000
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#define INTSTAT_RCIP 0x00080000
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#define INTSTAT_TCIP 0x00100000
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#define INTSTAT_RBE 0x00200000
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#define INTSTAT_RCTS 0x00400000
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#define INTSTAT_RSV 0x00800000
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#define INTSTAT_DPE 0x01000000 /* PCI Fatal error */
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#define INTSTAT_APE 0x02000000 /* PCI Fatal error */
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#define INTSTAT_PMA 0x04000000 /* PCI Fatal error */
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#define INTSTAT_PTA 0x08000000 /* PCI Fatal error */
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#define GENCTL_SOFT_RESET 0x00000001
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#define GENCTL_ENABLE_INTERRUPT 0x00000002
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#define GENCTL_SOFTWARE_INTERRUPT 0x00000004
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#define GENCTL_POWER_DOWN 0x00000008
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#define GENCTL_ONECOPY 0x00000010
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#define GENCTL_BIG_ENDIAN 0x00000020
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#define GENCTL_RECEIVE_DMA_PRIORITY 0x00000040
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#define GENCTL_TRANSMIT_DMA_PRIORITY 0x00000080
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#define GENCTL_RECEIVE_FIFO_THRESHOLD128 0x00000300
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#define GENCTL_RECEIVE_FIFO_THRESHOLD96 0x00000200
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#define GENCTL_RECEIVE_FIFO_THRESHOLD64 0x00000100
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#define GENCTL_RECEIVE_FIFO_THRESHOLD32 0x00000000
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#define GENCTL_MEMORY_READ_LINE 0x00000400
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#define GENCTL_MEMORY_READ_MULTIPLE 0x00000800
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#define GENCTL_SOFTWARE1 0x00001000
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#define GENCTL_SOFTWARE2 0x00002000
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#define GENCTL_RESET_PHY 0x00004000
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#define NVCTL_ENABLE_MEMORY_MAP 0x00000001
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#define NVCTL_CLOCK_RUN_SUPPORTED 0x00000002
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#define NVCTL_GP1_OUTPUT_ENABLE 0x00000004
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#define NVCTL_GP2_OUTPUT_ENABLE 0x00000008
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#define NVCTL_GP1 0x00000010
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#define NVCTL_GP2 0x00000020
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#define NVCTL_CARDBUS_MODE 0x00000040
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#define NVCTL_IPG_DELAY_MASK(x) ((x&0xF)<<7)
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#define RXCON_SAVE_ERRORED_PACKETS 0x00000001
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#define RXCON_RECEIVE_RUNT_FRAMES 0x00000002
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#define RXCON_RECEIVE_BROADCAST_FRAMES 0x00000004
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#define RXCON_RECEIVE_MULTICAST_FRAMES 0x00000008
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#define RXCON_RECEIVE_INVERSE_INDIVIDUAL_ADDRESS_FRAMES 0x00000010
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#define RXCON_PROMISCUOUS_MODE 0x00000020
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#define RXCON_MONITOR_MODE 0x00000040
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#define RXCON_EARLY_RECEIVE_ENABLE 0x00000080
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#define RXCON_EXTERNAL_BUFFER_DISABLE 0x00000000
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#define RXCON_EXTERNAL_BUFFER_16K 0x00000100
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#define RXCON_EXTERNAL_BUFFER_32K 0x00000200
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#define RXCON_EXTERNAL_BUFFER_128K 0x00000300
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#define TXCON_EARLY_TRANSMIT_ENABLE 0x00000001
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#define TXCON_LOOPBACK_DISABLE 0x00000000
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#define TXCON_LOOPBACK_MODE_INT 0x00000002
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#define TXCON_LOOPBACK_MODE_PHY 0x00000004
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#define TXCON_LOOPBACK_MODE 0x00000006
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#define TXCON_FULL_DUPLEX 0x00000006
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#define TXCON_SLOT_TIME 0x00000078
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#define MIICFG_SERIAL_ENABLE 0x00000001
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#define MIICFG_694_ENABLE 0x00000002
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#define MIICFG_694_STATUS 0x00000004
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#define MIICFG_PHY_PRESENT 0x00000008
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#define MIICFG_SMI_ENABLE 0x00000010
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#define TEST1_CLOCK_TEST 0x00000008
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/*
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* Some default values
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*/
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#define TXCON_DEFAULT (TXCON_SLOT_TIME | TXCON_EARLY_TRANSMIT_ENABLE)
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#define TRANSMIT_THRESHOLD 0x300
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#define TRANSMIT_THRESHOLD_MAX 0x600
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#define RXCON_DEFAULT (RXCON_RECEIVE_MULTICAST_FRAMES | \
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RXCON_RECEIVE_BROADCAST_FRAMES)
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#define RXCON_EARLY_RX (RXCON_EARLY_RECEIVE_ENABLE | \
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RXCON_SAVE_ERRORED_PACKETS)
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/*
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* EEPROM structure
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* SMC9432* eeprom is organized by words and only first 8 words
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* have distinctive meaning (according to datasheet)
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*/
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#define EEPROM_MAC0 0x0000 /* Byte 0 / Byte 1 */
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#define EEPROM_MAC1 0x0001 /* Byte 2 / Byte 3 */
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#define EEPROM_MAC2 0x0002 /* Byte 4 / Byte 5 */
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#define EEPROM_BID_CSUM 0x0003 /* Board Id / Check Sum */
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#define EEPROM_NVCTL 0x0004 /* NVCTL (bits 0-5) / nothing */
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#define EEPROM_PCI_MGD_MLD 0x0005 /* PCI MinGrant / MaxLatency. Desired */
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#define EEPROM_SSVENDID 0x0006 /* Subsystem Vendor Id */
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#define EEPROM_SSID 0x0006 /* Subsystem Id */
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/*
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* Hardware structures.
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*/
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/*
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* EPIC's hardware descriptors, must be aligned on dword in memory.
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* NB: to make driver happy, this two structures MUST have their sizes
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* be divisor of PAGE_SIZE.
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*/
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struct epic_tx_desc {
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volatile u_int16_t status;
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volatile u_int16_t txlength;
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volatile u_int32_t bufaddr;
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volatile u_int16_t buflength;
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volatile u_int16_t control;
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volatile u_int32_t next;
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};
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struct epic_rx_desc {
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volatile u_int16_t status;
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volatile u_int16_t rxlength;
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volatile u_int32_t bufaddr;
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volatile u_int32_t buflength;
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volatile u_int32_t next;
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};
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/*
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* This structure defines EPIC's fragment list, maximum number of frags
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* is 63. Let's use the maximum, because size of struct MUST be divisor
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* of PAGE_SIZE, and sometimes come mbufs with more then 30 frags.
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*/
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#define EPIC_MAX_FRAGS 63
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struct epic_frag_list {
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volatile u_int32_t numfrags;
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struct {
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volatile u_int32_t fragaddr;
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volatile u_int32_t fraglen;
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} frag[EPIC_MAX_FRAGS];
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volatile u_int32_t pad; /* align on 256 bytes */
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};
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/*
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* NB: ALIGN OF ABOVE STRUCTURES
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* epic_rx_desc, epic_tx_desc, epic_frag_list - must be aligned on dword
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*/
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#define SMC9432DMT 0xA010
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#define SMC9432TX 0xA011
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#define SMC9032TXM 0xA012
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#define SMC9032TX 0xA013
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#define SMC9432TXPWR 0xA014
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#define SMC9432BTX 0xA015
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#define SMC9432FTX 0xA016
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#define SMC9432FTX_SC 0xA017
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#define SMC9432TX_XG_ADHOC 0xA020
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#define SMC9434TX_XG_ADHOC 0xA021
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#define SMC9432FTX_ADHOC 0xA022
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#define SMC9432BTX1 0xA024
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