// SPDX-License-Identifier: GPL-2.0-or-later /* */ #define pr_fmt(fmt) … #define DRV_NAME … #include <linux/module.h> #include <linux/kernel.h> #include <linux/string.h> #include <linux/timer.h> #include <linux/errno.h> #include <linux/ioport.h> #include <linux/interrupt.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/skbuff.h> #include <linux/delay.h> #include <linux/spinlock.h> #include <linux/dma-mapping.h> #include <linux/bitops.h> #include <asm/processor.h> #include <asm/io.h> #include <asm/dma.h> #include <linux/uaccess.h> #define uw32(reg, val) … #define ur32(reg) … /* Board/System/Debug information/definition ---------------- */ #define PCI_ULI5261_ID … #define PCI_ULI5263_ID … #define ULI526X_IO_SIZE … #define TX_DESC_CNT … #define RX_DESC_CNT … #define TX_FREE_DESC_CNT … #define TX_WAKE_DESC_CNT … #define DESC_ALL_CNT … #define TX_BUF_ALLOC … #define RX_ALLOC_SIZE … #define ULI526X_RESET … #define CR0_DEFAULT … #define CR6_DEFAULT … #define CR7_DEFAULT … #define CR15_DEFAULT … #define TDES0_ERR_MASK … #define MAX_PACKET_SIZE … #define ULI5261_MAX_MULTICAST … #define RX_COPY_SIZE … #define MAX_CHECK_PACKET … #define ULI526X_10MHF … #define ULI526X_100MHF … #define ULI526X_10MFD … #define ULI526X_100MFD … #define ULI526X_AUTO … #define ULI526X_TXTH_72 … #define ULI526X_TXTH_96 … #define ULI526X_TXTH_128 … #define ULI526X_TXTH_256 … #define ULI526X_TXTH_512 … #define ULI526X_TXTH_1K … #define ULI526X_TIMER_WUT … #define ULI526X_TX_TIMEOUT … #define ULI526X_TX_KICK … #define ULI526X_DBUG(dbug_now, msg, value) … #define SHOW_MEDIA_TYPE(mode) … /* CR9 definition: SROM/MII */ #define CR9_SROM_READ … #define CR9_SRCS … #define CR9_SRCLK … #define CR9_CRDOUT … #define SROM_DATA_0 … #define SROM_DATA_1 … #define PHY_DATA_1 … #define PHY_DATA_0 … #define MDCLKH … #define PHY_POWER_DOWN … #define SROM_V41_CODE … /* Structure/enum declaration ------------------------------- */ struct tx_desc { … } __attribute__(( aligned … )); struct rx_desc { … } __attribute__(( aligned … )); struct uli526x_board_info { … }; enum uli526x_offsets { … }; enum uli526x_CR6_bits { … }; /* Global variable declaration ----------------------------- */ static int uli526x_debug; static unsigned char uli526x_media_mode = …; static u32 uli526x_cr6_user_set; /* For module input parameter */ static int debug; static u32 cr6set; static int mode = …; /* function declaration ------------------------------------- */ static int uli526x_open(struct net_device *); static netdev_tx_t uli526x_start_xmit(struct sk_buff *, struct net_device *); static int uli526x_stop(struct net_device *); static void uli526x_set_filter_mode(struct net_device *); static const struct ethtool_ops netdev_ethtool_ops; static u16 read_srom_word(struct uli526x_board_info *, int); static irqreturn_t uli526x_interrupt(int, void *); #ifdef CONFIG_NET_POLL_CONTROLLER static void uli526x_poll(struct net_device *dev); #endif static void uli526x_descriptor_init(struct net_device *, void __iomem *); static void allocate_rx_buffer(struct net_device *); static void update_cr6(u32, void __iomem *); static void send_filter_frame(struct net_device *, int); static u16 phy_readby_cr9(struct uli526x_board_info *, u8, u8); static u16 phy_readby_cr10(struct uli526x_board_info *, u8, u8); static void phy_writeby_cr9(struct uli526x_board_info *, u8, u8, u16); static void phy_writeby_cr10(struct uli526x_board_info *, u8, u8, u16); static void phy_write_1bit(struct uli526x_board_info *db, u32); static u16 phy_read_1bit(struct uli526x_board_info *db); static u8 uli526x_sense_speed(struct uli526x_board_info *); static void uli526x_process_mode(struct uli526x_board_info *); static void uli526x_timer(struct timer_list *t); static void uli526x_rx_packet(struct net_device *, struct uli526x_board_info *); static void uli526x_free_tx_pkt(struct net_device *, struct uli526x_board_info *); static void uli526x_reuse_skb(struct uli526x_board_info *, struct sk_buff *); static void uli526x_dynamic_reset(struct net_device *); static void uli526x_free_rxbuffer(struct uli526x_board_info *); static void uli526x_init(struct net_device *); static void uli526x_set_phyxcer(struct uli526x_board_info *); static void srom_clk_write(struct uli526x_board_info *db, u32 data) { … } /* ULI526X network board routine ---------------------------- */ static const struct net_device_ops netdev_ops = …; /* * Search ULI526X board, allocate space and register it */ static int uli526x_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { … } static void uli526x_remove_one(struct pci_dev *pdev) { … } /* * Open the interface. * The interface is opened whenever "ifconfig" activates it. */ static int uli526x_open(struct net_device *dev) { … } /* Initialize ULI526X board * Reset ULI526X board * Initialize TX/Rx descriptor chain structure * Send the set-up frame * Enable Tx/Rx machine */ static void uli526x_init(struct net_device *dev) { … } /* * Hardware start transmission. * Send a packet to media from the upper layer. */ static netdev_tx_t uli526x_start_xmit(struct sk_buff *skb, struct net_device *dev) { … } /* * Stop the interface. * The interface is stopped when it is brought. */ static int uli526x_stop(struct net_device *dev) { … } /* * M5261/M5263 insterrupt handler * receive the packet to upper layer, free the transmitted packet */ static irqreturn_t uli526x_interrupt(int irq, void *dev_id) { … } #ifdef CONFIG_NET_POLL_CONTROLLER static void uli526x_poll(struct net_device *dev) { … } #endif /* * Free TX resource after TX complete */ static void uli526x_free_tx_pkt(struct net_device *dev, struct uli526x_board_info * db) { … } /* * Receive the come packet and pass to upper layer */ static void uli526x_rx_packet(struct net_device *dev, struct uli526x_board_info * db) { … } /* * Set ULI526X multicast address */ static void uli526x_set_filter_mode(struct net_device * dev) { … } static void ULi_ethtool_get_link_ksettings(struct uli526x_board_info *db, struct ethtool_link_ksettings *cmd) { … } static void netdev_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) { … } static int netdev_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { … } static u32 netdev_get_link(struct net_device *dev) { … } static void uli526x_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol) { … } static const struct ethtool_ops netdev_ethtool_ops = …; /* * A periodic timer routine * Dynamic media sense, allocate Rx buffer... */ static void uli526x_timer(struct timer_list *t) { … } /* * Stop ULI526X board * Free Tx/Rx allocated memory * Init system variable */ static void uli526x_reset_prepare(struct net_device *dev) { … } /* * Dynamic reset the ULI526X board * Stop ULI526X board * Free Tx/Rx allocated memory * Reset ULI526X board * Re-initialize ULI526X board */ static void uli526x_dynamic_reset(struct net_device *dev) { … } /* * Suspend the interface. */ static int __maybe_unused uli526x_suspend(struct device *dev_d) { … } /* * Resume the interface. */ static int __maybe_unused uli526x_resume(struct device *dev_d) { … } /* * free all allocated rx buffer */ static void uli526x_free_rxbuffer(struct uli526x_board_info * db) { … } /* * Reuse the SK buffer */ static void uli526x_reuse_skb(struct uli526x_board_info *db, struct sk_buff * skb) { … } /* * Initialize transmit/Receive descriptor * Using Chain structure, and allocate Tx/Rx buffer */ static void uli526x_descriptor_init(struct net_device *dev, void __iomem *ioaddr) { … } /* * Update CR6 value * Firstly stop ULI526X, then written value and start */ static void update_cr6(u32 cr6_data, void __iomem *ioaddr) { … } /* * Send a setup frame for M5261/M5263 * This setup frame initialize ULI526X address filter mode */ #ifdef __BIG_ENDIAN #define FLT_SHIFT … #else #define FLT_SHIFT … #endif static void send_filter_frame(struct net_device *dev, int mc_cnt) { … } /* * Allocate rx buffer, * As possible as allocate maxiumn Rx buffer */ static void allocate_rx_buffer(struct net_device *dev) { … } /* * Read one word data from the serial ROM */ static u16 read_srom_word(struct uli526x_board_info *db, int offset) { … } /* * Auto sense the media mode */ static u8 uli526x_sense_speed(struct uli526x_board_info * db) { … } /* * Set 10/100 phyxcer capability * AUTO mode : phyxcer register4 is NIC capability * Force mode: phyxcer register4 is the force media */ static void uli526x_set_phyxcer(struct uli526x_board_info *db) { … } /* * Process op-mode AUTO mode : PHY controller in Auto-negotiation Mode * Force mode: PHY controller in force mode with HUB * N-way force capability with SWITCH */ static void uli526x_process_mode(struct uli526x_board_info *db) { … } /* M5261/M5263 Chip */ static void phy_writeby_cr9(struct uli526x_board_info *db, u8 phy_addr, u8 offset, u16 phy_data) { … } static u16 phy_readby_cr9(struct uli526x_board_info *db, u8 phy_addr, u8 offset) { … } static u16 phy_readby_cr10(struct uli526x_board_info *db, u8 phy_addr, u8 offset) { … } static void phy_writeby_cr10(struct uli526x_board_info *db, u8 phy_addr, u8 offset, u16 phy_data) { … } /* * Write one bit data to Phy Controller */ static void phy_write_1bit(struct uli526x_board_info *db, u32 data) { … } /* * Read one bit phy data from PHY controller */ static u16 phy_read_1bit(struct uli526x_board_info *db) { … } static const struct pci_device_id uli526x_pci_tbl[] = …; MODULE_DEVICE_TABLE(pci, uli526x_pci_tbl); static SIMPLE_DEV_PM_OPS(uli526x_pm_ops, uli526x_suspend, uli526x_resume); static struct pci_driver uli526x_driver = …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; module_param(debug, int, 0644); module_param(mode, int, 0); module_param(cr6set, int, 0); MODULE_PARM_DESC(…) …; MODULE_PARM_DESC(…) …; /* Description: * when user used insmod to add module, system invoked init_module() * to register the services. */ static int __init uli526x_init_module(void) { … } /* * Description: * when user used rmmod to delete module, system invoked clean_module() * to un-register all registered services. */ static void __exit uli526x_cleanup_module(void) { … } module_init(…) …; module_exit(uli526x_cleanup_module);
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