// SPDX-License-Identifier: GPL-1.0+ /*====================================================================== A PCMCIA ethernet driver for NS8390-based cards This driver supports the D-Link DE-650 and Linksys EthernetCard cards, the newer D-Link and Linksys combo cards, Accton EN2212 cards, the RPTI EP400, and the PreMax PE-200 in non-shared-memory mode, and the IBM Credit Card Adapter, the NE4100, the Thomas Conrad ethernet card, and the Kingston KNE-PCM/x in shared-memory mode. It will also handle the Socket EA card in either mode. Copyright (C) 1999 David A. Hinds -- [email protected] pcnet_cs.c 1.153 2003/11/09 18:53:09 The network driver code is based on Donald Becker's NE2000 code: Written 1992,1993 by Donald Becker. Copyright 1993 United States Government as represented by the Director, National Security Agency. Donald Becker may be reached at [email protected] Based also on Keith Moore's changes to Don Becker's code, for IBM CCAE support. Drivers merged back together, and shared-memory Socket EA support added, by Ken Raeburn, September 1995. ======================================================================*/ #define pr_fmt(fmt) … #include <linux/kernel.h> #include <linux/module.h> #include <linux/ptrace.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/delay.h> #include <linux/netdevice.h> #include <linux/log2.h> #include <linux/etherdevice.h> #include <linux/mii.h> #include "8390.h" #include <pcmcia/cistpl.h> #include <pcmcia/ciscode.h> #include <pcmcia/ds.h> #include <pcmcia/cisreg.h> #include <asm/io.h> #include <asm/byteorder.h> #include <linux/uaccess.h> #define PCNET_CMD … #define PCNET_DATAPORT … #define PCNET_RESET … #define PCNET_MISC … #define PCNET_START_PG … #define PCNET_STOP_PG … /* Socket EA cards have a larger packet buffer */ #define SOCKET_START_PG … #define SOCKET_STOP_PG … #define PCNET_RDC_TIMEOUT … static const char *if_names[] = …; /*====================================================================*/ /* Module parameters */ MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; #define INT_MODULE_PARM(n, v) … INT_MODULE_PARM(if_port, 1); /* Transceiver type */ INT_MODULE_PARM(use_big_buf, 1); /* use 64K packet buffer? */ INT_MODULE_PARM(mem_speed, 0); /* shared mem speed, in ns */ INT_MODULE_PARM(delay_output, 0); /* pause after xmit? */ INT_MODULE_PARM(delay_time, 4); /* in usec */ INT_MODULE_PARM(use_shmem, -1); /* use shared memory? */ INT_MODULE_PARM(full_duplex, 0); /* full duplex? */ /* Ugh! Let the user hardwire the hardware address for queer cards */ static int hw_addr[6] = …; module_param_array(…); /*====================================================================*/ static void mii_phy_probe(struct net_device *dev); static int pcnet_config(struct pcmcia_device *link); static void pcnet_release(struct pcmcia_device *link); static int pcnet_open(struct net_device *dev); static int pcnet_close(struct net_device *dev); static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static irqreturn_t ei_irq_wrapper(int irq, void *dev_id); static void ei_watchdog(struct timer_list *t); static void pcnet_reset_8390(struct net_device *dev); static int set_config(struct net_device *dev, struct ifmap *map); static int setup_shmem_window(struct pcmcia_device *link, int start_pg, int stop_pg, int cm_offset); static int setup_dma_config(struct pcmcia_device *link, int start_pg, int stop_pg); static void pcnet_detach(struct pcmcia_device *p_dev); /*====================================================================*/ struct hw_info { … }; #define DELAY_OUTPUT … #define HAS_MISC_REG … #define USE_BIG_BUF … #define HAS_IBM_MISC … #define IS_DL10019 … #define IS_DL10022 … #define HAS_MII … #define USE_SHMEM … #define AM79C9XX_HOME_PHY … #define AM79C9XX_ETH_PHY … #define MII_PHYID_REV_MASK … #define MII_PHYID_REG1 … #define MII_PHYID_REG2 … static struct hw_info hw_info[] = …; #define NR_INFO … static struct hw_info default_info = …; static struct hw_info dl10019_info = …; static struct hw_info dl10022_info = …; struct pcnet_dev { … }; static inline struct pcnet_dev *PRIV(struct net_device *dev) { … } static const struct net_device_ops pcnet_netdev_ops = …; static int pcnet_probe(struct pcmcia_device *link) { … } /* pcnet_attach */ static void pcnet_detach(struct pcmcia_device *link) { … } /* pcnet_detach */ /*====================================================================== This probes for a card's hardware address, for card types that encode this information in their CIS. ======================================================================*/ static struct hw_info *get_hwinfo(struct pcmcia_device *link) { … } /* get_hwinfo */ /*====================================================================== This probes for a card's hardware address by reading the PROM. It checks the address against a list of known types, then falls back to a simple NE2000 clone signature check. ======================================================================*/ static struct hw_info *get_prom(struct pcmcia_device *link) { … } /* get_prom */ /*====================================================================== For DL10019 based cards, like the Linksys EtherFast ======================================================================*/ static struct hw_info *get_dl10019(struct pcmcia_device *link) { … } /*====================================================================== For Asix AX88190 based cards ======================================================================*/ static struct hw_info *get_ax88190(struct pcmcia_device *link) { … } /*====================================================================== This should be totally unnecessary... but when we can't figure out the hardware address any other way, we'll let the user hard wire it when the module is initialized. ======================================================================*/ static struct hw_info *get_hwired(struct pcmcia_device *link) { … } /* get_hwired */ static int try_io_port(struct pcmcia_device *link) { … } static int pcnet_confcheck(struct pcmcia_device *p_dev, void *priv_data) { … } static struct hw_info *pcnet_try_config(struct pcmcia_device *link, int *has_shmem, int try) { … } static int pcnet_config(struct pcmcia_device *link) { … } /* pcnet_config */ static void pcnet_release(struct pcmcia_device *link) { … } static int pcnet_suspend(struct pcmcia_device *link) { … } static int pcnet_resume(struct pcmcia_device *link) { … } /*====================================================================== MII interface support for DL10019 and DL10022 based cards On the DL10019, the MII IO direction bit is 0x10; on the DL10022 it is 0x20. Setting both bits seems to work on both card types. ======================================================================*/ #define DLINK_GPIO … #define DLINK_DIAG … #define DLINK_EEPROM … #define MDIO_SHIFT_CLK … #define MDIO_DATA_OUT … #define MDIO_DIR_WRITE … #define MDIO_DATA_WRITE0 … #define MDIO_DATA_WRITE1 … #define MDIO_DATA_READ … #define MDIO_MASK … static void mdio_sync(unsigned int addr) { … } static int mdio_read(unsigned int addr, int phy_id, int loc) { … } static void mdio_write(unsigned int addr, int phy_id, int loc, int value) { … } /*====================================================================== EEPROM access routines for DL10019 and DL10022 based cards ======================================================================*/ #define EE_EEP … #define EE_ASIC … #define EE_CS … #define EE_CK … #define EE_DO … #define EE_DI … #define EE_ADOT … #define EE_READ_CMD … #define DL19FDUPLX … static int read_eeprom(unsigned int ioaddr, int location) { … } /* The internal ASIC registers can be changed by EEPROM READ access with EE_ASIC bit set. In ASIC mode, EE_ADOT is used to output the data to the ASIC. */ static void write_asic(unsigned int ioaddr, int location, short asic_data) { … } /*====================================================================*/ static void set_misc_reg(struct net_device *dev) { … } /*====================================================================*/ static void mii_phy_probe(struct net_device *dev) { … } static int pcnet_open(struct net_device *dev) { … } /* pcnet_open */ /*====================================================================*/ static int pcnet_close(struct net_device *dev) { … } /* pcnet_close */ /*====================================================================== Hard reset the card. This used to pause for the same period that a 8390 reset command required, but that shouldn't be necessary. ======================================================================*/ static void pcnet_reset_8390(struct net_device *dev) { … } /* pcnet_reset_8390 */ /*====================================================================*/ static int set_config(struct net_device *dev, struct ifmap *map) { … } /*====================================================================*/ static irqreturn_t ei_irq_wrapper(int irq, void *dev_id) { … } static void ei_watchdog(struct timer_list *t) { … } /*====================================================================*/ static int ei_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) { … } /*====================================================================*/ static void dma_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { … } /*====================================================================*/ static void dma_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { … } /* dma_block_input */ /*====================================================================*/ static void dma_block_output(struct net_device *dev, int count, const u_char *buf, const int start_page) { … } /*====================================================================*/ static int setup_dma_config(struct pcmcia_device *link, int start_pg, int stop_pg) { … } /*====================================================================*/ static void copyin(void *dest, void __iomem *src, int c) { … } static void copyout(void __iomem *dest, const void *src, int c) { … } /*====================================================================*/ static void shmem_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) { … } /*====================================================================*/ static void shmem_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset) { … } /*====================================================================*/ static void shmem_block_output(struct net_device *dev, int count, const u_char *buf, const int start_page) { … } /*====================================================================*/ static int setup_shmem_window(struct pcmcia_device *link, int start_pg, int stop_pg, int cm_offset) { … } /*====================================================================*/ static const struct pcmcia_device_id pcnet_ids[] = …; MODULE_DEVICE_TABLE(pcmcia, pcnet_ids); MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; static struct pcmcia_driver pcnet_driver = …; module_pcmcia_driver(…);
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