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194b64e83d
freebsd/sys/pci/smc83c170.h
Semen Ustimenko e3e1bee33a Fix some strange errors of shutting transmitter up when start 
transmition after software reset with no link estabilished yet.
Fix TX DMA stop method (queue last packet to stop).

PR:		i386/6578
1998-07-04 08:02:46 +00:00

390 lines
14 KiB
C
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/*-
* Copyright (c) 1997 Semen Ustimenko
* 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 THE 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 THE 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.
*
* $Id: smc83c170.h,v 1.14 1998/07/03 23:59:09 galv Exp $
*
*/
/*
* Configuration
*/
#define TX_RING_SIZE 8
#define RX_RING_SIZE 8
#define EPIC_FULL_DUPLEX 1
#define EPIC_HALF_DUPLEX 0
#define ETHER_MAX_FRAME_LEN (ETHER_MAX_LEN + ETHER_CRC_LEN)
#define EPIC_LINK_DOWN 0x00000001
/* PCI identification */
#define SMC_VENDORID 0x10B8
#define CHIPID_83C170 0x0005
#define PCI_VENDORID(x) ((x) & 0xFFFF)
#define PCI_CHIPID(x) (((x) >> 16) & 0xFFFF)
/* PCI configuration */
#define PCI_CFID 0x00 /* Configuration ID */
#define PCI_CFCS 0x04 /* Configurtion Command/Status */
#define PCI_CFRV 0x08 /* Configuration Revision */
#define PCI_CFLT 0x0c /* Configuration Latency Timer */
#define PCI_CBIO 0x10 /* Configuration Base IO Address */
#define PCI_CBMA 0x14 /* Configuration Base Memory Address */
#define PCI_CFIT 0x3c /* Configuration Interrupt */
#define PCI_CFDA 0x40 /* Configuration Driver Area */
#define PCI_CONF_WRITE(r, v) pci_conf_write(config_id, (r), (v))
#define PCI_CONF_READ(r) pci_conf_read(config_id, (r))
/* EPIC's registers */
#define COMMAND 0x0000
#define INTSTAT 0x0004 /* Interrupt status. See below */
#define INTMASK 0x0008 /* Interrupt mask. See below */
#define GENCTL 0x000C
#define NVCTL 0x0010
#define EECTL 0x0014 /* EEPROM control **/
#define TEST1 0x001C /* XXXXX */
#define CRCCNT 0x0020 /* CRC error counter */
#define ALICNT 0x0024 /* FrameTooLang error counter */
#define MPCNT 0x0028 /* MissedFrames error counters */
#define MIICTL 0x0030
#define MIIDATA 0x0034
#define MIICFG 0x0038
#define IPG 0x003C
#define LAN0 0x0040 /* MAC address */
#define LAN1 0x0044 /* MAC address */
#define LAN2 0x0048 /* MAC address */
#define ID_CHK 0x004C
#define MC0 0x0050 /* Multicast filter table */
#define MC1 0x0054 /* Multicast filter table */
#define MC2 0x0058 /* Multicast filter table */
#define MC3 0x005C /* Multicast filter table */
#define RXCON 0x0060 /* Rx control register */
#define TXCON 0x0070 /* Tx control register */
#define TXSTAT 0x0074
#define PRCDAR 0x0084 /* RxRing bus address */
#define PRSTAT 0x00A4
#define PRCPTHR 0x00B0
#define PTCDAR 0x00C4 /* TxRing bus address */
#define ETXTHR 0x00DC
#define COMMAND_STOP_RX 0x01
#define COMMAND_START_RX 0x02
#define COMMAND_TXQUEUED 0x04
#define COMMAND_RXQUEUED 0x08
#define COMMAND_NEXTFRAME 0x10
#define COMMAND_STOP_TDMA 0x20
#define COMMAND_STOP_RDMA 0x40
#define COMMAND_TXUGO 0x80
/* Tx threshold */
#define TX_FIFO_THRESH 0x80 /* 0x40 or 0x10 */
/* Interrupt register bits */
#define INTSTAT_RCC 0x00000001
#define INTSTAT_HCC 0x00000002
#define INTSTAT_RQE 0x00000004
#define INTSTAT_OVW 0x00000008
#define INTSTAT_RXE 0x00000010
#define INTSTAT_TXC 0x00000020
#define INTSTAT_TCC 0x00000040
#define INTSTAT_TQE 0x00000080
#define INTSTAT_TXU 0x00000100
#define INTSTAT_CNT 0x00000200
#define INTSTAT_PREI 0x00000400
#define INTSTAT_RCT 0x00000800
#define INTSTAT_FATAL 0x00001000 /* One of DPE,APE,PMA,PTA happend */
#define INTSTAT_UNUSED1 0x00002000
#define INTSTAT_UNUSED2 0x00004000
#define INTSTAT_GP2 0x00008000 /* PHY Event */
#define INTSTAT_INT_ACTV 0x00010000
#define INTSTAT_RXIDLE 0x00020000
#define INTSTAT_TXIDLE 0x00040000
#define INTSTAT_RCIP 0x00080000
#define INTSTAT_TCIP 0x00100000
#define INTSTAT_RBE 0x00200000
#define INTSTAT_RCTS 0x00400000
#define INTSTAT_RSV 0x00800000
#define INTSTAT_DPE 0x01000000 /* PCI Fatal error */
#define INTSTAT_APE 0x02000000 /* PCI Fatal error */
#define INTSTAT_PMA 0x04000000 /* PCI Fatal error */
#define INTSTAT_PTA 0x08000000 /* PCI Fatal error */
#define GENCTL_SOFT_RESET 0x00000001
#define GENCTL_ENABLE_INTERRUPT 0x00000002
#define GENCTL_SOFTWARE_INTERRUPT 0x00000004
#define GENCTL_POWER_DOWN 0x00000008
#define GENCTL_ONECOPY 0x00000010
#define GENCTL_BIG_ENDIAN 0x00000020
#define GENCTL_RECEIVE_DMA_PRIORITY 0x00000040
#define GENCTL_TRANSMIT_DMA_PRIORITY 0x00000080
#define GENCTL_RECEIVE_FIFO_THRESHOLD128 0x00000300
#define GENCTL_RECEIVE_FIFO_THRESHOLD96 0x00000200
#define GENCTL_RECEIVE_FIFO_THRESHOLD64 0x00000100
#define GENCTL_RECEIVE_FIFO_THRESHOLD32 0x00000000
#define GENCTL_MEMORY_READ_LINE 0x00000400
#define GENCTL_MEMORY_READ_MULTIPLE 0x00000800
#define GENCTL_SOFTWARE1 0x00001000
#define GENCTL_SOFTWARE2 0x00002000
#define GENCTL_RESET_PHY 0x00004000
#define NVCTL_ENABLE_MEMORY_MAP 0x00000001
#define NVCTL_CLOCK_RUN_SUPPORTED 0x00000002
#define NVCTL_GP1_OUTPUT_ENABLE 0x00000004
#define NVCTL_GP2_OUTPUT_ENABLE 0x00000008
#define NVCTL_GP1 0x00000010
#define NVCTL_GP2 0x00000020
#define NVCTL_CARDBUS_MODE 0x00000040
#define NVCTL_IPG_DELAY_MASK(x) ((x&0xF)<<7)
#define RXCON_SAVE_ERRORED_PACKETS 0x00000001
#define RXCON_RECEIVE_RUNT_FRAMES 0x00000002
#define RXCON_RECEIVE_BROADCAST_FRAMES 0x00000004
#define RXCON_RECEIVE_MULTICAST_FRAMES 0x00000008
#define RXCON_RECEIVE_INVERSE_INDIVIDUAL_ADDRESS_FRAMES 0x00000010
#define RXCON_PROMISCUOUS_MODE 0x00000020
#define RXCON_MONITOR_MODE 0x00000040
#define RXCON_EARLY_RECEIVE_ENABLE 0x00000080
#define RXCON_EXTERNAL_BUFFER_DISABLE 0x00000000
#define RXCON_EXTERNAL_BUFFER_16K 0x00000100
#define RXCON_EXTERNAL_BUFFER_32K 0x00000200
#define RXCON_EXTERNAL_BUFFER_128K 0x00000300
#define TXCON_EARLY_TRANSMIT_ENABLE 0x00000001
#define TXCON_LOOPBACK_DISABLE 0x00000000
#define TXCON_LOOPBACK_MODE_INT 0x00000002
#define TXCON_LOOPBACK_MODE_PHY 0x00000004
#define TXCON_LOOPBACK_MODE 0x00000006
#define TXCON_FULL_DUPLEX 0x00000006
#define TXCON_SLOT_TIME 0x00000078
#if defined(EARLY_TX)
#define TXCON_DEFAULT (TXCON_SLOT_TIME | TXCON_EARLY_TRANSMIT_ENABLE)
#define TRANSMIT_THRESHOLD 0x40
#else
#define TXCON_DEFAULT (TXCON_SLOT_TIME)
#endif
#if defined(EARLY_RX)
#define RXCON_DEFAULT (RXCON_EARLY_RECEIVE_ENABLE | RXCON_SAVE_ERRORED_PACKETS)
#else
#define RXCON_DEFAULT (0)
#endif
/*
* National Semiconductor's DP83840A Registers and bits
*/
#define DP83840_OUI 0x080017
#define DP83840_BMCR 0x00 /* Control register */
#define DP83840_BMSR 0x01 /* Status rgister */
#define DP83840_ANAR 0x04 /* Autonegotiation advertising register */
#define DP83840_LPAR 0x05 /* Link Partner Ability register */
#define DP83840_ANER 0x06 /* Auto-Negotiation Expansion Register */
#define DP83840_PAR 0x19 /* PHY Address Register */
#define DP83840_PHYIDR1 0x02
#define DP83840_PHYIDR2 0x03
#define BMCR_RESET 0x8000
#define BMCR_100MBPS 0x2000 /* 10/100 Mbps */
#define BMCR_AUTONEGOTIATION 0x1000 /* ON/OFF */
#define BMCR_RESTART_AUTONEG 0x0200
#define BMCR_FULL_DUPLEX 0x0100
#define BMSR_100BASE_T4 0x8000
#define BMSR_100BASE_TX_FD 0x4000
#define BMSR_100BASE_TX 0x2000
#define BMSR_10BASE_T_FD 0x1000
#define BMSR_10BASE_T 0x0800
#define BMSR_AUTONEG_COMPLETE 0x0020
#define BMSR_AUTONEG_ABLE 0x0008
#define BMSR_LINK_STATUS 0x0004
#define PAR_FULL_DUPLEX 0x0400
#define ANER_MULTIPLE_LINK_FAULT 0x10
/* ANAR and LPAR have the same bits, define them only once */
#define ANAR_10 0x0020
#define ANAR_10_FD 0x0040
#define ANAR_100_TX 0x0080
#define ANAR_100_TX_FD 0x0100
#define ANAR_100_T4 0x0200
/*
* Quality Semiconductor's QS6612 registers and bits
*/
#define QS6612_OUI 0x006051
#define QS6612_MCTL 17
#define QS6612_INTSTAT 29
#define QS6612_INTMASK 30
#define MCTL_T4_PRESENT 0x1000 /* External T4 Enabled, ignored */
/* if AutoNeg is enabled */
#define MCTL_BTEXT 0x0800 /* Reduces 10baset squelch level */
/* for extended cable length */
#define INTSTAT_AN_COMPLETE 0x40 /* Autonegotiation complete */
#define INTSTAT_RF_DETECTED 0x20 /* Remote Fault detected */
#define INTSTAT_LINK_STATUS 0x10 /* Link status changed */
#define INTSTAT_AN_LP_ACK 0x08 /* Autoneg. LP Acknoledge */
#define INTSTAT_PD_FAULT 0x04 /* Parallel Detection Fault */
#define INTSTAT_AN_PAGE 0x04 /* Autoneg. Page Received */
#define INTSTAT_RE_CNT_FULL 0x01 /* Receive Error Counter Full */
#define INTMASK_THUNDERLAN 0x8000 /* Enable interrupts */
/*
* Structures definition and Functions prototypes
*/
/* EPIC's hardware descriptors, must be aligned on dword in memory */
/* NB: to make driver happy, this two structures MUST have thier sizes */
/* be divisor of PAGE_SIZE */
struct epic_tx_desc {
volatile u_int16_t status;
volatile u_int16_t txlength;
volatile u_int32_t bufaddr;
volatile u_int16_t buflength;
volatile u_int16_t control;
volatile u_int32_t next;
};
struct epic_rx_desc {
volatile u_int16_t status;
volatile u_int16_t rxlength;
volatile u_int32_t bufaddr;
volatile u_int32_t buflength;
volatile u_int32_t next;
};
/* This structure defines EPIC's fragment list, maximum number of frags */
/* is 63. Let use maximum, becouse size of struct MUST be divisor of */
/* PAGE_SIZE, and sometimes come mbufs with more then 30 frags */
struct epic_frag_list {
volatile u_int32_t numfrags;
struct {
volatile u_int32_t fragaddr;
volatile u_int32_t fraglen;
} frag[63];
volatile u_int32_t pad; /* align on 256 bytes */
};
/* This is driver's structure to define EPIC descriptors */
struct epic_rx_buffer {
struct mbuf * mbuf; /* mbuf receiving packet */
};
struct epic_tx_buffer {
struct mbuf * mbuf; /* mbuf contained packet */
};
/*
* NB: ALIGN OF ABOVE STRUCTURES
* epic_rx_desc, epic_tx_desc, epic_frag_list - must be aligned on dword
*/
/* Driver status structure */
typedef struct {
u_int32_t unit;
struct epic_rx_buffer rx_buffer[RX_RING_SIZE];
struct epic_tx_buffer tx_buffer[TX_RING_SIZE];
/* Each element of array MUST be aligned on dword */
/* and bounded on PAGE_SIZE */
struct epic_rx_desc *rx_desc;
struct epic_tx_desc *tx_desc;
struct epic_frag_list *tx_flist;
#if defined(_NET_IF_MEDIA_H_)
struct ifmedia ifmedia;
#endif
struct arpcom epic_ac;
u_int32_t flags;
u_int32_t phyid;
u_int32_t cur_tx;
u_int32_t cur_rx;
u_int32_t dirty_tx;
u_int32_t pending_txs;
#if defined(EPIC_USEIOSPACE)
u_int32_t iobase;
#else
caddr_t csr;
#endif
} epic_softc_t;
#define epic_if epic_ac.ac_if
#define epic_macaddr epic_ac.ac_enaddr
#if defined(EPIC_USEIOSPACE)
#define CSR_WRITE_4(sc,reg,val) outl( (sc)->iobase + (u_int32_t)(reg), (val) )
#define CSR_WRITE_2(sc,reg,val) outw( (sc)->iobase + (u_int32_t)(reg), (val) )
#define CSR_WRITE_1(sc,reg,val) outb( (sc)->iobase + (u_int32_t)(reg), (val) )
#define CSR_READ_4(sc,reg) inl( (sc)->iobase + (u_int32_t)(reg) )
#define CSR_READ_2(sc,reg) inw( (sc)->iobase + (u_int32_t)(reg) )
#define CSR_READ_1(sc,reg) inb( (sc)->iobase + (u_int32_t)(reg) )
#else
#define CSR_WRITE_1(sc,reg,val) ((*(u_int8_t*)((sc)->csr + (u_int32_t)(reg))) = (u_int8_t)(val))
#define CSR_WRITE_2(sc,reg,val) ((*(u_int16_t*)((sc)->csr + (u_int32_t)(reg))) = (u_int16_t)(val))
#define CSR_WRITE_4(sc,reg,val) ((*(u_int32_t*)((sc)->csr + (u_int32_t)(reg))) = (u_int32_t)(val))
#define CSR_READ_1(sc,reg) (*(u_int8_t*)((sc)->csr + (u_int32_t)(reg)))
#define CSR_READ_2(sc,reg) (*(u_int16_t*)((sc)->csr + (u_int32_t)(reg)))
#define CSR_READ_4(sc,reg) (*(u_int32_t*)((sc)->csr + (u_int32_t)(reg)))
#endif
#define PHY_READ_2(sc,reg) epic_read_phy_register(sc,reg)
#define PHY_WRITE_2(sc,reg,val) epic_write_phy_register(sc,reg,val)
static char* epic_pci_probe __P((pcici_t, pcidi_t));
/* Folowing functions calls splimp() */
static int epic_ifioctl __P((register struct ifnet *, u_long, caddr_t));
static void epic_ifstart __P((struct ifnet *));
static void epic_ifwatchdog __P((struct ifnet *));
static void epic_pci_attach __P((pcici_t, int));
static int epic_init __P((epic_softc_t *));
static void epic_stop __P((epic_softc_t *));
static int epic_ifmedia_change __P((struct ifnet *));
static void epic_ifmedia_status __P((struct ifnet *, struct ifmediareq *));
/* Following functions doesn't call splimp() */
static void epic_intr_normal __P((void *));
static __inline void epic_rx_done __P((epic_softc_t *));
static __inline void epic_tx_done __P((epic_softc_t *));
static void epic_shutdown __P((int, void *));
static int epic_init_rings __P((epic_softc_t *));
static void epic_free_rings __P((epic_softc_t *));
static void epic_stop_activity __P((epic_softc_t *));
static void epic_start_activity __P((epic_softc_t *));
static void epic_set_rx_mode __P((epic_softc_t *));
static void epic_set_mc_table __P((epic_softc_t *));
static void epic_set_media_speed __P((epic_softc_t *));
static void epic_init_phy __P((epic_softc_t *));
static void epic_dump_state __P((epic_softc_t *));
static int epic_autoneg __P((epic_softc_t *));
static int epic_read_eeprom __P((epic_softc_t *,u_int16_t));
static void epic_output_eepromw __P((epic_softc_t *, u_int16_t));
static u_int16_t epic_input_eepromw __P((epic_softc_t *));
static u_int8_t epic_eeprom_clock __P((epic_softc_t *,u_int8_t));
static void epic_write_eepromreg __P((epic_softc_t *,u_int8_t));
static u_int8_t epic_read_eepromreg __P((epic_softc_t *));
static u_int16_t epic_read_phy_register __P((epic_softc_t *, u_int16_t));
static void epic_write_phy_register __P((epic_softc_t *, u_int16_t, u_int16_t));
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