+++ /dev/null
-/**
- * Register map access API - ENCX24J600 support
- *
- * Copyright 2015 Gridpoint
- *
- * Author: Jon Ringle <jringle@gridpoint.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/regmap.h>
-#include <linux/spi/spi.h>
-
-#include "encx24j600_hw.h"
-
-static inline bool is_bits_set(int value, int mask)
-{
- return (value & mask) == mask;
-}
-
-static int encx24j600_switch_bank(struct encx24j600_context *ctx,
- int bank)
-{
- int ret = 0;
-
- int bank_opcode = BANK_SELECT(bank);
- ret = spi_write(ctx->spi, &bank_opcode, 1);
- if (ret == 0)
- ctx->bank = bank;
-
- return ret;
-}
-
-static int encx24j600_cmdn(struct encx24j600_context *ctx, u8 opcode,
- const void *buf, size_t len)
-{
- struct spi_message m;
- struct spi_transfer t[2] = { { .tx_buf = &opcode, .len = 1, },
- { .tx_buf = buf, .len = len }, };
- spi_message_init(&m);
- spi_message_add_tail(&t[0], &m);
- spi_message_add_tail(&t[1], &m);
-
- return spi_sync(ctx->spi, &m);
-}
-
-static void regmap_lock_mutex(void *context)
-{
- struct encx24j600_context *ctx = context;
- mutex_lock(&ctx->mutex);
-}
-
-static void regmap_unlock_mutex(void *context)
-{
- struct encx24j600_context *ctx = context;
- mutex_unlock(&ctx->mutex);
-}
-
-static int regmap_encx24j600_sfr_read(void *context, u8 reg, u8 *val,
- size_t len)
-{
- struct encx24j600_context *ctx = context;
- u8 banked_reg = reg & ADDR_MASK;
- u8 bank = ((reg & BANK_MASK) >> BANK_SHIFT);
- u8 cmd = RCRU;
- int ret = 0;
- int i = 0;
- u8 tx_buf[2];
-
- if (reg < 0x80) {
- cmd = RCRCODE | banked_reg;
- if ((banked_reg < 0x16) && (ctx->bank != bank))
- ret = encx24j600_switch_bank(ctx, bank);
- if (unlikely(ret))
- return ret;
- } else {
- /* Translate registers that are more effecient using
- * 3-byte SPI commands
- */
- switch (reg) {
- case EGPRDPT:
- cmd = RGPRDPT; break;
- case EGPWRPT:
- cmd = RGPWRPT; break;
- case ERXRDPT:
- cmd = RRXRDPT; break;
- case ERXWRPT:
- cmd = RRXWRPT; break;
- case EUDARDPT:
- cmd = RUDARDPT; break;
- case EUDAWRPT:
- cmd = RUDAWRPT; break;
- case EGPDATA:
- case ERXDATA:
- case EUDADATA:
- default:
- return -EINVAL;
- }
- }
-
- tx_buf[i++] = cmd;
- if (cmd == RCRU)
- tx_buf[i++] = reg;
-
- ret = spi_write_then_read(ctx->spi, tx_buf, i, val, len);
-
- return ret;
-}
-
-static int regmap_encx24j600_sfr_update(struct encx24j600_context *ctx,
- u8 reg, u8 *val, size_t len,
- u8 unbanked_cmd, u8 banked_code)
-{
- u8 banked_reg = reg & ADDR_MASK;
- u8 bank = ((reg & BANK_MASK) >> BANK_SHIFT);
- u8 cmd = unbanked_cmd;
- struct spi_message m;
- struct spi_transfer t[3] = { { .tx_buf = &cmd, .len = sizeof(cmd), },
- { .tx_buf = ®, .len = sizeof(reg), },
- { .tx_buf = val, .len = len }, };
-
- if (reg < 0x80) {
- int ret = 0;
- cmd = banked_code | banked_reg;
- if ((banked_reg < 0x16) && (ctx->bank != bank))
- ret = encx24j600_switch_bank(ctx, bank);
- if (unlikely(ret))
- return ret;
- } else {
- /* Translate registers that are more effecient using
- * 3-byte SPI commands
- */
- switch (reg) {
- case EGPRDPT:
- cmd = WGPRDPT; break;
- case EGPWRPT:
- cmd = WGPWRPT; break;
- case ERXRDPT:
- cmd = WRXRDPT; break;
- case ERXWRPT:
- cmd = WRXWRPT; break;
- case EUDARDPT:
- cmd = WUDARDPT; break;
- case EUDAWRPT:
- cmd = WUDAWRPT; break;
- case EGPDATA:
- case ERXDATA:
- case EUDADATA:
- default:
- return -EINVAL;
- }
- }
-
- spi_message_init(&m);
- spi_message_add_tail(&t[0], &m);
-
- if (cmd == unbanked_cmd) {
- t[1].tx_buf = ®
- spi_message_add_tail(&t[1], &m);
- }
-
- spi_message_add_tail(&t[2], &m);
- return spi_sync(ctx->spi, &m);
-}
-
-static int regmap_encx24j600_sfr_write(void *context, u8 reg, u8 *val,
- size_t len)
-{
- struct encx24j600_context *ctx = context;
- return regmap_encx24j600_sfr_update(ctx, reg, val, len, WCRU, WCRCODE);
-}
-
-static int regmap_encx24j600_sfr_set_bits(struct encx24j600_context *ctx,
- u8 reg, u8 val)
-{
- return regmap_encx24j600_sfr_update(ctx, reg, &val, 1, BFSU, BFSCODE);
-}
-
-static int regmap_encx24j600_sfr_clr_bits(struct encx24j600_context *ctx,
- u8 reg, u8 val)
-{
- return regmap_encx24j600_sfr_update(ctx, reg, &val, 1, BFCU, BFCCODE);
-}
-
-static int regmap_encx24j600_reg_update_bits(void *context, unsigned int reg,
- unsigned int mask,
- unsigned int val, bool *change,
- bool force_write)
-{
- struct encx24j600_context *ctx = context;
-
- int ret = 0;
- unsigned int set_mask = mask & val;
- unsigned int clr_mask = mask & ~val;
-
- if (change)
- *change = false;
-
- if ((reg >= 0x40 && reg < 0x6c) || reg >= 0x80) {
- /* Must do read/modify/write cycles for
- * MAC/MII regs or Unbanked SFR regs
- */
- u16 tmp, orig;
-
- ret = regmap_encx24j600_sfr_read(context, reg, (u8 *)&orig,
- sizeof(orig));
- if (ret != 0)
- return ret;
-
- tmp = orig & ~mask;
- tmp |= val & mask;
-
- if (force_write || (tmp != orig)) {
- ret = regmap_encx24j600_sfr_write(context, reg,
- (u8 *)&tmp,
- sizeof(tmp));
- if (change)
- *change = true;
- } else if (change) {
- *change = false;
- }
-
- return ret;
- }
-
- if (set_mask & 0xff) {
- ret = regmap_encx24j600_sfr_set_bits(ctx, reg, set_mask);
- if (ret == 0 && change)
- *change = true;
- }
- set_mask = (set_mask & 0xff00) >> 8;
-
- if ((set_mask & 0xff) && (ret == 0)) {
- ret = regmap_encx24j600_sfr_set_bits(ctx, reg + 1, set_mask);
- if (ret == 0 && change)
- *change = true;
- }
-
- if ((clr_mask & 0xff) && (ret == 0)) {
- ret = regmap_encx24j600_sfr_clr_bits(ctx, reg, clr_mask);
- if (ret == 0 && change)
- *change = true;
- }
- clr_mask = (clr_mask & 0xff00) >> 8;
-
- if ((clr_mask & 0xff) && (ret == 0)) {
- ret = regmap_encx24j600_sfr_clr_bits(ctx, reg + 1, clr_mask);
- if (ret == 0 && change)
- *change = true;
- }
-
- return ret;
-}
-
-int regmap_encx24j600_spi_write(void *context, u8 reg, const u8 *data,
- size_t count)
-{
- struct encx24j600_context *ctx = context;
-
- if (reg < 0xc0)
- return encx24j600_cmdn(ctx, reg, data, count);
- else
- /* SPI 1-byte command. Ignore data */
- return spi_write(ctx->spi, ®, 1);
-}
-EXPORT_SYMBOL_GPL(regmap_encx24j600_spi_write);
-
-int regmap_encx24j600_spi_read(void *context, u8 reg, u8 *data, size_t count)
-{
- struct encx24j600_context *ctx = context;
-
- if (reg == RBSEL && count > 1)
- count = 1;
-
- return spi_write_then_read(ctx->spi, ®, sizeof(reg), data, count);
-}
-EXPORT_SYMBOL_GPL(regmap_encx24j600_spi_read);
-
-static int regmap_encx24j600_write(void *context, const void *data,
- size_t len)
-{
- u8 *dout = (u8 *)data;
- u8 reg = dout[0];
- ++dout;
- --len;
-
- if (reg > 0xa0)
- return regmap_encx24j600_spi_write(context, reg, dout, len);
-
- if (len > 2)
- return -EINVAL;
-
- return regmap_encx24j600_sfr_write(context, reg, dout, len);
-}
-
-static int regmap_encx24j600_read(void *context,
- const void *reg_buf, size_t reg_size,
- void *val, size_t val_size)
-{
- u8 reg = *(const u8 *)reg_buf;
-
- if (reg_size != 1) {
- pr_err("%s: reg=%02x reg_size=%zu\n", __func__, reg, reg_size);
- return -EINVAL;
- }
-
- if (reg > 0xa0)
- return regmap_encx24j600_spi_read(context, reg, val, val_size);
-
- if (val_size > 2) {
- pr_err("%s: reg=%02x val_size=%zu\n", __func__, reg, val_size);
- return -EINVAL;
- }
-
- return regmap_encx24j600_sfr_read(context, reg, val, val_size);
-}
-
-static bool encx24j600_regmap_readable(struct device *dev, unsigned int reg)
-{
- if ((reg < 0x36) ||
- ((reg >= 0x40) && (reg < 0x4c)) ||
- ((reg >= 0x52) && (reg < 0x56)) ||
- ((reg >= 0x60) && (reg < 0x66)) ||
- ((reg >= 0x68) && (reg < 0x80)) ||
- ((reg >= 0x86) && (reg < 0x92)) ||
- (reg == 0xc8))
- return true;
- else
- return false;
-}
-
-static bool encx24j600_regmap_writeable(struct device *dev, unsigned int reg)
-{
- if ((reg < 0x12) ||
- ((reg >= 0x14) && (reg < 0x1a)) ||
- ((reg >= 0x1c) && (reg < 0x36)) ||
- ((reg >= 0x40) && (reg < 0x4c)) ||
- ((reg >= 0x52) && (reg < 0x56)) ||
- ((reg >= 0x60) && (reg < 0x68)) ||
- ((reg >= 0x6c) && (reg < 0x80)) ||
- ((reg >= 0x86) && (reg < 0x92)) ||
- ((reg >= 0xc0) && (reg < 0xc8)) ||
- ((reg >= 0xca) && (reg < 0xf0)))
- return true;
- else
- return false;
-}
-
-static bool encx24j600_regmap_volatile(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case ERXHEAD:
- case EDMACS:
- case ETXSTAT:
- case ETXWIRE:
- case ECON1: /* Can be modified via single byte cmds */
- case ECON2: /* Can be modified via single byte cmds */
- case ESTAT:
- case EIR: /* Can be modified via single byte cmds */
- case MIRD:
- case MISTAT:
- return true;
- default:
- break;
- }
-
- return false;
-}
-
-static bool encx24j600_regmap_precious(struct device *dev, unsigned int reg)
-{
- /* single byte cmds are precious */
- if (((reg >= 0xc0) && (reg < 0xc8)) ||
- ((reg >= 0xca) && (reg < 0xf0)))
- return true;
- else
- return false;
-}
-
-static int regmap_encx24j600_phy_reg_read(void *context, unsigned int reg,
- unsigned int *val)
-{
- struct encx24j600_context *ctx = context;
- int ret;
- unsigned int mistat;
-
- reg = MIREGADR_VAL | (reg & PHREG_MASK);
- ret = regmap_write(ctx->regmap, MIREGADR, reg);
- if (unlikely(ret))
- goto err_out;
-
- ret = regmap_write(ctx->regmap, MICMD, MIIRD);
- if (unlikely(ret))
- goto err_out;
-
- usleep_range(26, 100);
- while ((ret = regmap_read(ctx->regmap, MISTAT, &mistat) != 0) &&
- (mistat & BUSY))
- cpu_relax();
-
- if (unlikely(ret))
- goto err_out;
-
- ret = regmap_write(ctx->regmap, MICMD, 0);
- if (unlikely(ret))
- goto err_out;
-
- ret = regmap_read(ctx->regmap, MIRD, val);
-
-err_out:
- if (ret)
- pr_err("%s: error %d reading reg %02x\n", __func__, ret,
- reg & PHREG_MASK);
-
- return ret;
-}
-
-static int regmap_encx24j600_phy_reg_write(void *context, unsigned int reg,
- unsigned int val)
-{
- struct encx24j600_context *ctx = context;
- int ret;
- unsigned int mistat;
-
- reg = MIREGADR_VAL | (reg & PHREG_MASK);
- ret = regmap_write(ctx->regmap, MIREGADR, reg);
- if (unlikely(ret))
- goto err_out;
-
- ret = regmap_write(ctx->regmap, MIWR, val);
- if (unlikely(ret))
- goto err_out;
-
- usleep_range(26, 100);
- while ((ret = regmap_read(ctx->regmap, MISTAT, &mistat) != 0) &&
- (mistat & BUSY))
- cpu_relax();
-
-err_out:
- if (ret)
- pr_err("%s: error %d writing reg %02x=%04x\n", __func__, ret,
- reg & PHREG_MASK, val);
-
- return ret;
-}
-
-static bool encx24j600_phymap_readable(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case PHCON1:
- case PHSTAT1:
- case PHANA:
- case PHANLPA:
- case PHANE:
- case PHCON2:
- case PHSTAT2:
- case PHSTAT3:
- return true;
- default:
- return false;
- }
-}
-
-static bool encx24j600_phymap_writeable(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case PHCON1:
- case PHCON2:
- case PHANA:
- return true;
- case PHSTAT1:
- case PHSTAT2:
- case PHSTAT3:
- case PHANLPA:
- case PHANE:
- default:
- return false;
- }
-}
-
-static bool encx24j600_phymap_volatile(struct device *dev, unsigned int reg)
-{
- switch (reg) {
- case PHSTAT1:
- case PHSTAT2:
- case PHSTAT3:
- case PHANLPA:
- case PHANE:
- case PHCON2:
- return true;
- default:
- return false;
- }
-}
-
-static struct regmap_config regcfg = {
- .name = "reg",
- .reg_bits = 8,
- .val_bits = 16,
- .max_register = 0xee,
- .reg_stride = 2,
- .cache_type = REGCACHE_RBTREE,
- .val_format_endian = REGMAP_ENDIAN_LITTLE,
- .readable_reg = encx24j600_regmap_readable,
- .writeable_reg = encx24j600_regmap_writeable,
- .volatile_reg = encx24j600_regmap_volatile,
- .precious_reg = encx24j600_regmap_precious,
- .lock = regmap_lock_mutex,
- .unlock = regmap_unlock_mutex,
-};
-
-static struct regmap_bus regmap_encx24j600 = {
- .write = regmap_encx24j600_write,
- .read = regmap_encx24j600_read,
- .reg_update_bits = regmap_encx24j600_reg_update_bits,
-};
-
-static struct regmap_config phycfg = {
- .name = "phy",
- .reg_bits = 8,
- .val_bits = 16,
- .max_register = 0x1f,
- .cache_type = REGCACHE_RBTREE,
- .val_format_endian = REGMAP_ENDIAN_LITTLE,
- .readable_reg = encx24j600_phymap_readable,
- .writeable_reg = encx24j600_phymap_writeable,
- .volatile_reg = encx24j600_phymap_volatile,
-};
-static struct regmap_bus phymap_encx24j600 = {
- .reg_write = regmap_encx24j600_phy_reg_write,
- .reg_read = regmap_encx24j600_phy_reg_read,
-};
-
-void devm_regmap_init_encx24j600(struct device *dev,
- struct encx24j600_context *ctx)
-{
- mutex_init(&ctx->mutex);
- regcfg.lock_arg = ctx;
- ctx->regmap = devm_regmap_init(dev, ®map_encx24j600, ctx, ®cfg);
- ctx->phymap = devm_regmap_init(dev, &phymap_encx24j600, ctx, &phycfg);
-}
-EXPORT_SYMBOL_GPL(devm_regmap_init_encx24j600);
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/**
- * Microchip ENCX24J600 ethernet driver
- *
- * Copyright (C) 2015 Gridpoint
- * Author: Jon Ringle <jringle@gridpoint.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- */
-
-#include <linux/device.h>
-#include <linux/errno.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/regmap.h>
-#include <linux/skbuff.h>
-#include <linux/spi/spi.h>
-
-#include "encx24j600_hw.h"
-
-#define DRV_NAME "encx24j600"
-#define DRV_VERSION "1.0"
-
-#define DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
-static int debug = -1;
-module_param(debug, int, 0);
-MODULE_PARM_DESC(debug, "Debug level (0=none,...,16=all)");
-
-/* SRAM memory layout:
- *
- * 0x0000-0x05ff TX buffers 1.5KB (1*1536) reside in the GP area in SRAM
- * 0x0600-0x5fff RX buffers 22.5KB (15*1536) reside in the RX area in SRAM
- */
-#define ENC_TX_BUF_START 0x0000U
-#define ENC_RX_BUF_START 0x0600U
-#define ENC_RX_BUF_END 0x5fffU
-#define ENC_SRAM_SIZE 0x6000U
-
-enum {
- RXFILTER_NORMAL,
- RXFILTER_MULTI,
- RXFILTER_PROMISC
-};
-
-struct encx24j600_priv {
- struct net_device *ndev;
- struct mutex lock; /* device access lock */
- struct encx24j600_context ctx;
- struct sk_buff *tx_skb;
- struct task_struct *kworker_task;
- struct kthread_worker kworker;
- struct kthread_work tx_work;
- struct kthread_work setrx_work;
- u16 next_packet;
- bool hw_enabled;
- bool full_duplex;
- bool autoneg;
- u16 speed;
- int rxfilter;
- u32 msg_enable;
-};
-
-static void dump_packet(const char *msg, int len, const char *data)
-{
- pr_debug(DRV_NAME ": %s - packet len:%d\n", msg, len);
- print_hex_dump_bytes("pk data: ", DUMP_PREFIX_OFFSET, data, len);
-}
-
-static void encx24j600_dump_rsv(struct encx24j600_priv *priv, const char *msg,
- struct rsv *rsv)
-{
- struct net_device *dev = priv->ndev;
-
- netdev_info(dev, "RX packet Len:%d\n", rsv->len);
- netdev_dbg(dev, "%s - NextPk: 0x%04x\n", msg,
- rsv->next_packet);
- netdev_dbg(dev, "RxOK: %d, DribbleNibble: %d\n",
- RSV_GETBIT(rsv->rxstat, RSV_RXOK),
- RSV_GETBIT(rsv->rxstat, RSV_DRIBBLENIBBLE));
- netdev_dbg(dev, "CRCErr:%d, LenChkErr: %d, LenOutOfRange: %d\n",
- RSV_GETBIT(rsv->rxstat, RSV_CRCERROR),
- RSV_GETBIT(rsv->rxstat, RSV_LENCHECKERR),
- RSV_GETBIT(rsv->rxstat, RSV_LENOUTOFRANGE));
- netdev_dbg(dev, "Multicast: %d, Broadcast: %d, LongDropEvent: %d, CarrierEvent: %d\n",
- RSV_GETBIT(rsv->rxstat, RSV_RXMULTICAST),
- RSV_GETBIT(rsv->rxstat, RSV_RXBROADCAST),
- RSV_GETBIT(rsv->rxstat, RSV_RXLONGEVDROPEV),
- RSV_GETBIT(rsv->rxstat, RSV_CARRIEREV));
- netdev_dbg(dev, "ControlFrame: %d, PauseFrame: %d, UnknownOp: %d, VLanTagFrame: %d\n",
- RSV_GETBIT(rsv->rxstat, RSV_RXCONTROLFRAME),
- RSV_GETBIT(rsv->rxstat, RSV_RXPAUSEFRAME),
- RSV_GETBIT(rsv->rxstat, RSV_RXUNKNOWNOPCODE),
- RSV_GETBIT(rsv->rxstat, RSV_RXTYPEVLAN));
-}
-
-static u16 encx24j600_read_reg(struct encx24j600_priv *priv, u8 reg)
-{
- struct net_device *dev = priv->ndev;
- unsigned int val = 0;
- int ret = regmap_read(priv->ctx.regmap, reg, &val);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d reading reg %02x\n",
- __func__, ret, reg);
- return val;
-}
-
-static void encx24j600_write_reg(struct encx24j600_priv *priv, u8 reg, u16 val)
-{
- struct net_device *dev = priv->ndev;
- int ret = regmap_write(priv->ctx.regmap, reg, val);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d writing reg %02x=%04x\n",
- __func__, ret, reg, val);
-}
-
-static void encx24j600_update_reg(struct encx24j600_priv *priv, u8 reg,
- u16 mask, u16 val)
-{
- struct net_device *dev = priv->ndev;
- int ret = regmap_update_bits(priv->ctx.regmap, reg, mask, val);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d updating reg %02x=%04x~%04x\n",
- __func__, ret, reg, val, mask);
-}
-
-static u16 encx24j600_read_phy(struct encx24j600_priv *priv, u8 reg)
-{
- struct net_device *dev = priv->ndev;
- unsigned int val = 0;
- int ret = regmap_read(priv->ctx.phymap, reg, &val);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d reading %02x\n",
- __func__, ret, reg);
- return val;
-}
-
-static void encx24j600_write_phy(struct encx24j600_priv *priv, u8 reg, u16 val)
-{
- struct net_device *dev = priv->ndev;
- int ret = regmap_write(priv->ctx.phymap, reg, val);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d writing reg %02x=%04x\n",
- __func__, ret, reg, val);
-}
-
-static void encx24j600_clr_bits(struct encx24j600_priv *priv, u8 reg, u16 mask)
-{
- encx24j600_update_reg(priv, reg, mask, 0);
-}
-
-static void encx24j600_set_bits(struct encx24j600_priv *priv, u8 reg, u16 mask)
-{
- encx24j600_update_reg(priv, reg, mask, mask);
-}
-
-static void encx24j600_cmd(struct encx24j600_priv *priv, u8 cmd)
-{
- struct net_device *dev = priv->ndev;
- int ret = regmap_write(priv->ctx.regmap, cmd, 0);
- if (unlikely(ret))
- netif_err(priv, drv, dev, "%s: error %d with cmd %02x\n",
- __func__, ret, cmd);
-}
-
-static int encx24j600_raw_read(struct encx24j600_priv *priv, u8 reg, u8 *data,
- size_t count)
-{
- int ret;
- mutex_lock(&priv->ctx.mutex);
- ret = regmap_encx24j600_spi_read(&priv->ctx, reg, data, count);
- mutex_unlock(&priv->ctx.mutex);
-
- return ret;
-}
-
-static int encx24j600_raw_write(struct encx24j600_priv *priv, u8 reg,
- const u8 *data, size_t count)
-{
- int ret;
- mutex_lock(&priv->ctx.mutex);
- ret = regmap_encx24j600_spi_write(&priv->ctx, reg, data, count);
- mutex_unlock(&priv->ctx.mutex);
-
- return ret;
-}
-
-static void encx24j600_update_phcon1(struct encx24j600_priv *priv)
-{
- u16 phcon1 = encx24j600_read_phy(priv, PHCON1);
- if (priv->autoneg == AUTONEG_ENABLE) {
- phcon1 |= ANEN | RENEG;
- } else {
- phcon1 &= ~ANEN;
- if (priv->speed == SPEED_100)
- phcon1 |= SPD100;
- else
- phcon1 &= ~SPD100;
-
- if (priv->full_duplex)
- phcon1 |= PFULDPX;
- else
- phcon1 &= ~PFULDPX;
- }
- encx24j600_write_phy(priv, PHCON1, phcon1);
-}
-
-/* Waits for autonegotiation to complete. */
-static int encx24j600_wait_for_autoneg(struct encx24j600_priv *priv)
-{
- struct net_device *dev = priv->ndev;
- unsigned long timeout = jiffies + msecs_to_jiffies(2000);
- u16 phstat1;
- u16 estat;
- int ret = 0;
-
- phstat1 = encx24j600_read_phy(priv, PHSTAT1);
- while ((phstat1 & ANDONE) == 0) {
- if (time_after(jiffies, timeout)) {
- u16 phstat3;
-
- netif_notice(priv, drv, dev, "timeout waiting for autoneg done\n");
-
- priv->autoneg = AUTONEG_DISABLE;
- phstat3 = encx24j600_read_phy(priv, PHSTAT3);
- priv->speed = (phstat3 & PHY3SPD100)
- ? SPEED_100 : SPEED_10;
- priv->full_duplex = (phstat3 & PHY3DPX) ? 1 : 0;
- encx24j600_update_phcon1(priv);
- netif_notice(priv, drv, dev, "Using parallel detection: %s/%s",
- priv->speed == SPEED_100 ? "100" : "10",
- priv->full_duplex ? "Full" : "Half");
-
- return -ETIMEDOUT;
- }
- cpu_relax();
- phstat1 = encx24j600_read_phy(priv, PHSTAT1);
- }
-
- estat = encx24j600_read_reg(priv, ESTAT);
- if (estat & PHYDPX) {
- encx24j600_set_bits(priv, MACON2, FULDPX);
- encx24j600_write_reg(priv, MABBIPG, 0x15);
- } else {
- encx24j600_clr_bits(priv, MACON2, FULDPX);
- encx24j600_write_reg(priv, MABBIPG, 0x12);
- /* Max retransmittions attempt */
- encx24j600_write_reg(priv, MACLCON, 0x370f);
- }
-
- return ret;
-}
-
-/* Access the PHY to determine link status */
-static void encx24j600_check_link_status(struct encx24j600_priv *priv)
-{
- struct net_device *dev = priv->ndev;
- u16 estat;
-
- estat = encx24j600_read_reg(priv, ESTAT);
-
- if (estat & PHYLNK) {
- if (priv->autoneg == AUTONEG_ENABLE)
- encx24j600_wait_for_autoneg(priv);
-
- netif_carrier_on(dev);
- netif_info(priv, ifup, dev, "link up\n");
- } else {
- netif_info(priv, ifdown, dev, "link down\n");
-
- /* Re-enable autoneg since we won't know what we might be
- * connected to when the link is brought back up again.
- */
- priv->autoneg = AUTONEG_ENABLE;
- priv->full_duplex = true;
- priv->speed = SPEED_100;
- netif_carrier_off(dev);
- }
-}
-
-static void encx24j600_int_link_handler(struct encx24j600_priv *priv)
-{
- struct net_device *dev = priv->ndev;
-
- netif_dbg(priv, intr, dev, "%s", __func__);
- encx24j600_check_link_status(priv);
- encx24j600_clr_bits(priv, EIR, LINKIF);
-}
-
-static void encx24j600_tx_complete(struct encx24j600_priv *priv, bool err)
-{
- struct net_device *dev = priv->ndev;
-
- mutex_lock(&priv->lock);
-
- if (err)
- dev->stats.tx_errors++;
- else
- dev->stats.tx_packets++;
-
- dev->stats.tx_bytes += priv->tx_skb->len;
-
- encx24j600_clr_bits(priv, EIR, TXIF | TXABTIF);
-
- netif_dbg(priv, tx_done, dev, "TX Done%s\n", err ? ": Err" : "");
-
- if (priv->tx_skb) {
- dev_kfree_skb(priv->tx_skb);
- priv->tx_skb = NULL;
- }
-
- netif_wake_queue(dev);
-
- mutex_unlock(&priv->lock);
-}
-
-static int encx24j600_receive_packet(struct encx24j600_priv *priv,
- struct rsv *rsv)
-{
- struct net_device *dev = priv->ndev;
- struct sk_buff *skb = netdev_alloc_skb(dev, rsv->len + NET_IP_ALIGN);
- if (!skb) {
- pr_err_ratelimited("RX: OOM: packet dropped\n");
- dev->stats.rx_dropped++;
- return -ENOMEM;
- }
- skb_reserve(skb, NET_IP_ALIGN);
- encx24j600_raw_read(priv, RRXDATA, skb_put(skb, rsv->len), rsv->len);
-
- if (netif_msg_pktdata(priv))
- dump_packet("RX", skb->len, skb->data);
-
- skb->dev = dev;
- skb->protocol = eth_type_trans(skb, dev);
- skb->ip_summed = CHECKSUM_COMPLETE;
-
- /* Maintain stats */
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += rsv->len;
- priv->next_packet = rsv->next_packet;
-
- netif_rx(skb);
-
- return 0;
-}
-
-static void encx24j600_rx_packets(struct encx24j600_priv *priv, u8 packet_count)
-{
- struct net_device *dev = priv->ndev;
-
- while (packet_count--) {
- struct rsv rsv;
- u16 newrxtail;
-
- encx24j600_write_reg(priv, ERXRDPT, priv->next_packet);
- encx24j600_raw_read(priv, RRXDATA, (u8 *)&rsv, sizeof(rsv));
-
- if (netif_msg_rx_status(priv))
- encx24j600_dump_rsv(priv, __func__, &rsv);
-
- if (!RSV_GETBIT(rsv.rxstat, RSV_RXOK) ||
- (rsv.len > MAX_FRAMELEN)) {
- netif_err(priv, rx_err, dev, "RX Error %04x\n",
- rsv.rxstat);
- dev->stats.rx_errors++;
-
- if (RSV_GETBIT(rsv.rxstat, RSV_CRCERROR))
- dev->stats.rx_crc_errors++;
- if (RSV_GETBIT(rsv.rxstat, RSV_LENCHECKERR))
- dev->stats.rx_frame_errors++;
- if (rsv.len > MAX_FRAMELEN)
- dev->stats.rx_over_errors++;
- } else {
- encx24j600_receive_packet(priv, &rsv);
- }
-
- newrxtail = priv->next_packet - 2;
- if (newrxtail == ENC_RX_BUF_START)
- newrxtail = SRAM_SIZE - 2;
-
- encx24j600_cmd(priv, SETPKTDEC);
- encx24j600_write_reg(priv, ERXTAIL, newrxtail);
- }
-}
-
-static irqreturn_t encx24j600_isr(int irq, void *dev_id)
-{
- struct encx24j600_priv *priv = dev_id;
- struct net_device *dev = priv->ndev;
- int eir;
-
- /* Clear interrupts */
- encx24j600_cmd(priv, CLREIE);
-
- eir = encx24j600_read_reg(priv, EIR);
-
- if (eir & LINKIF)
- encx24j600_int_link_handler(priv);
-
- if (eir & TXIF)
- encx24j600_tx_complete(priv, false);
-
- if (eir & TXABTIF)
- encx24j600_tx_complete(priv, true);
-
- if (eir & RXABTIF) {
- if (eir & PCFULIF) {
- /* Packet counter is full */
- netif_err(priv, rx_err, dev, "Packet counter full\n");
- }
- dev->stats.rx_dropped++;
- encx24j600_clr_bits(priv, EIR, RXABTIF);
- }
-
- if (eir & PKTIF) {
- u8 packet_count;
-
- mutex_lock(&priv->lock);
-
- packet_count = encx24j600_read_reg(priv, ESTAT) & 0xff;
- while (packet_count) {
- encx24j600_rx_packets(priv, packet_count);
- packet_count = encx24j600_read_reg(priv, ESTAT) & 0xff;
- }
-
- mutex_unlock(&priv->lock);
- }
-
- /* Enable interrupts */
- encx24j600_cmd(priv, SETEIE);
-
- return IRQ_HANDLED;
-}
-
-static int encx24j600_soft_reset(struct encx24j600_priv *priv)
-{
- int ret = 0;
- int timeout;
- u16 eudast;
-
- /* Write and verify a test value to EUDAST */
- regcache_cache_bypass(priv->ctx.regmap, true);
- timeout = 10;
- do {
- encx24j600_write_reg(priv, EUDAST, EUDAST_TEST_VAL);
- eudast = encx24j600_read_reg(priv, EUDAST);
- usleep_range(25, 100);
- } while ((eudast != EUDAST_TEST_VAL) && --timeout);
- regcache_cache_bypass(priv->ctx.regmap, false);
-
- if (timeout == 0) {
- ret = -ETIMEDOUT;
- goto err_out;
- }
-
- /* Wait for CLKRDY to become set */
- timeout = 10;
- while (!(encx24j600_read_reg(priv, ESTAT) & CLKRDY) && --timeout)
- usleep_range(25, 100);
-
- if (timeout == 0) {
- ret = -ETIMEDOUT;
- goto err_out;
- }
-
- /* Issue a System Reset command */
- encx24j600_cmd(priv, SETETHRST);
- usleep_range(25, 100);
-
- /* Confirm that EUDAST has 0000h after system reset */
- if (encx24j600_read_reg(priv, EUDAST) != 0) {
- ret = -EINVAL;
- goto err_out;
- }
-
- /* Wait for PHY register and status bits to become available */
- usleep_range(256, 1000);
-
-err_out:
- return ret;
-}
-
-static int encx24j600_hw_reset(struct encx24j600_priv *priv)
-{
- int ret;
-
- mutex_lock(&priv->lock);
- ret = encx24j600_soft_reset(priv);
- mutex_unlock(&priv->lock);
-
- return ret;
-}
-
-static void encx24j600_reset_hw_tx(struct encx24j600_priv *priv)
-{
- encx24j600_set_bits(priv, ECON2, TXRST);
- encx24j600_clr_bits(priv, ECON2, TXRST);
-}
-
-static void encx24j600_hw_init_tx(struct encx24j600_priv *priv)
-{
- /* Reset TX */
- encx24j600_reset_hw_tx(priv);
-
- /* Clear the TXIF flag if were previously set */
- encx24j600_clr_bits(priv, EIR, TXIF | TXABTIF);
-
- /* Write the Tx Buffer pointer */
- encx24j600_write_reg(priv, EGPWRPT, ENC_TX_BUF_START);
-}
-
-static void encx24j600_hw_init_rx(struct encx24j600_priv *priv)
-{
- encx24j600_cmd(priv, DISABLERX);
-
- /* Set up RX packet start address in the SRAM */
- encx24j600_write_reg(priv, ERXST, ENC_RX_BUF_START);
-
- /* Preload the RX Data pointer to the beginning of the RX area */
- encx24j600_write_reg(priv, ERXRDPT, ENC_RX_BUF_START);
-
- priv->next_packet = ENC_RX_BUF_START;
-
- /* Set up RX end address in the SRAM */
- encx24j600_write_reg(priv, ERXTAIL, ENC_SRAM_SIZE - 2);
-
- /* Reset the user data pointers */
- encx24j600_write_reg(priv, EUDAST, ENC_SRAM_SIZE);
- encx24j600_write_reg(priv, EUDAND, ENC_SRAM_SIZE + 1);
-
- /* Set Max Frame length */
- encx24j600_write_reg(priv, MAMXFL, MAX_FRAMELEN);
-}
-
-static void encx24j600_dump_config(struct encx24j600_priv *priv,
- const char *msg)
-{
- pr_info(DRV_NAME ": %s\n", msg);
-
- /* CHIP configuration */
- pr_info(DRV_NAME " ECON1: %04X\n", encx24j600_read_reg(priv, ECON1));
- pr_info(DRV_NAME " ECON2: %04X\n", encx24j600_read_reg(priv, ECON2));
- pr_info(DRV_NAME " ERXFCON: %04X\n", encx24j600_read_reg(priv,
- ERXFCON));
- pr_info(DRV_NAME " ESTAT: %04X\n", encx24j600_read_reg(priv, ESTAT));
- pr_info(DRV_NAME " EIR: %04X\n", encx24j600_read_reg(priv, EIR));
- pr_info(DRV_NAME " EIDLED: %04X\n", encx24j600_read_reg(priv, EIDLED));
-
- /* MAC layer configuration */
- pr_info(DRV_NAME " MACON1: %04X\n", encx24j600_read_reg(priv, MACON1));
- pr_info(DRV_NAME " MACON2: %04X\n", encx24j600_read_reg(priv, MACON2));
- pr_info(DRV_NAME " MAIPG: %04X\n", encx24j600_read_reg(priv, MAIPG));
- pr_info(DRV_NAME " MACLCON: %04X\n", encx24j600_read_reg(priv,
- MACLCON));
- pr_info(DRV_NAME " MABBIPG: %04X\n", encx24j600_read_reg(priv,
- MABBIPG));
-
- /* PHY configuation */
- pr_info(DRV_NAME " PHCON1: %04X\n", encx24j600_read_phy(priv, PHCON1));
- pr_info(DRV_NAME " PHCON2: %04X\n", encx24j600_read_phy(priv, PHCON2));
- pr_info(DRV_NAME " PHANA: %04X\n", encx24j600_read_phy(priv, PHANA));
- pr_info(DRV_NAME " PHANLPA: %04X\n", encx24j600_read_phy(priv,
- PHANLPA));
- pr_info(DRV_NAME " PHANE: %04X\n", encx24j600_read_phy(priv, PHANE));
- pr_info(DRV_NAME " PHSTAT1: %04X\n", encx24j600_read_phy(priv,
- PHSTAT1));
- pr_info(DRV_NAME " PHSTAT2: %04X\n", encx24j600_read_phy(priv,
- PHSTAT2));
- pr_info(DRV_NAME " PHSTAT3: %04X\n", encx24j600_read_phy(priv,
- PHSTAT3));
-}
-
-static void encx24j600_set_rxfilter_mode(struct encx24j600_priv *priv)
-{
- switch (priv->rxfilter) {
- case RXFILTER_PROMISC:
- encx24j600_set_bits(priv, MACON1, PASSALL);
- encx24j600_write_reg(priv, ERXFCON, UCEN | MCEN | NOTMEEN);
- break;
- case RXFILTER_MULTI:
- encx24j600_clr_bits(priv, MACON1, PASSALL);
- encx24j600_write_reg(priv, ERXFCON, UCEN | CRCEN | BCEN | MCEN);
- break;
- case RXFILTER_NORMAL:
- default:
- encx24j600_clr_bits(priv, MACON1, PASSALL);
- encx24j600_write_reg(priv, ERXFCON, UCEN | CRCEN | BCEN);
- break;
- }
-}
-
-static int encx24j600_hw_init(struct encx24j600_priv *priv)
-{
- struct net_device *dev = priv->ndev;
- int ret = 0;
- u16 eidled;
- u16 macon2;
-
- priv->hw_enabled = false;
-
- eidled = encx24j600_read_reg(priv, EIDLED);
- if (((eidled & DEVID_MASK) >> DEVID_SHIFT) != ENCX24J600_DEV_ID) {
- ret = -EINVAL;
- goto err_out;
- }
-
- netif_info(priv, drv, dev, "Silicon rev ID: 0x%02x\n",
- (eidled & REVID_MASK) >> REVID_SHIFT);
-
- /* PHY Leds: link status,
- * LEDA: Link + transmit/receive events
- * LEDB: Link State + colision events
- */
- encx24j600_update_reg(priv, EIDLED, 0xbc00, 0xbc00);
-
- /* Loopback disabled */
- encx24j600_write_reg(priv, MACON1, 0x9);
-
- /* interpacket gap value */
- encx24j600_write_reg(priv, MAIPG, 0x0c12);
-
- /* Write the auto negotiation pattern */
- encx24j600_write_phy(priv, PHANA, PHANA_DEFAULT);
-
- encx24j600_update_phcon1(priv);
- encx24j600_check_link_status(priv);
-
- macon2 = MACON2_RSV1 | TXCRCEN | PADCFG0 | PADCFG2 | MACON2_DEFER;
- if ((priv->autoneg == AUTONEG_DISABLE) && priv->full_duplex)
- macon2 |= FULDPX;
-
- encx24j600_set_bits(priv, MACON2, macon2);
-
- priv->rxfilter = RXFILTER_NORMAL;
- encx24j600_set_rxfilter_mode(priv);
-
- /* Program the Maximum frame length */
- encx24j600_write_reg(priv, MAMXFL, MAX_FRAMELEN);
-
- /* Init Tx pointers */
- encx24j600_hw_init_tx(priv);
-
- /* Init Rx pointers */
- encx24j600_hw_init_rx(priv);
-
- if (netif_msg_hw(priv))
- encx24j600_dump_config(priv, "Hw is initialized");
-
-err_out:
- return ret;
-}
-
-static void encx24j600_hw_enable(struct encx24j600_priv *priv)
-{
- /* Clear the interrupt flags in case was set */
- encx24j600_clr_bits(priv, EIR, (PCFULIF | RXABTIF | TXABTIF | TXIF |
- PKTIF | LINKIF));
-
- /* Enable the interrupts */
- encx24j600_write_reg(priv, EIE, (PCFULIE | RXABTIE | TXABTIE | TXIE |
- PKTIE | LINKIE | INTIE));
-
- /* Enable RX */
- encx24j600_cmd(priv, ENABLERX);
-
- priv->hw_enabled = true;
-}
-
-static void encx24j600_hw_disable(struct encx24j600_priv *priv)
-{
- /* Disable all interrupts */
- encx24j600_write_reg(priv, EIE, 0);
-
- /* Disable RX */
- encx24j600_cmd(priv, DISABLERX);
-
- priv->hw_enabled = false;
-}
-
-static int encx24j600_setlink(struct net_device *dev, u8 autoneg, u16 speed,
- u8 duplex)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
- int ret = 0;
-
- if (!priv->hw_enabled) {
- /* link is in low power mode now; duplex setting
- * will take effect on next encx24j600_hw_init()
- */
- if (speed == SPEED_10 || speed == SPEED_100) {
- priv->autoneg = (autoneg == AUTONEG_ENABLE);
- priv->full_duplex = (duplex == DUPLEX_FULL);
- priv->speed = (speed == SPEED_100);
- } else {
- netif_warn(priv, link, dev, "unsupported link speed setting\n");
- /*speeds other than SPEED_10 and SPEED_100 */
- /*are not supported by chip */
- ret = -EOPNOTSUPP;
- }
- } else {
- netif_warn(priv, link, dev, "Warning: hw must be disabled to set link mode\n");
- ret = -EBUSY;
- }
- return ret;
-}
-
-static void encx24j600_hw_get_macaddr(struct encx24j600_priv *priv,
- unsigned char *ethaddr)
-{
- unsigned short val;
-
- val = encx24j600_read_reg(priv, MAADR1);
-
- ethaddr[0] = val & 0x00ff;
- ethaddr[1] = (val & 0xff00) >> 8;
-
- val = encx24j600_read_reg(priv, MAADR2);
-
- ethaddr[2] = val & 0x00ffU;
- ethaddr[3] = (val & 0xff00U) >> 8;
-
- val = encx24j600_read_reg(priv, MAADR3);
-
- ethaddr[4] = val & 0x00ffU;
- ethaddr[5] = (val & 0xff00U) >> 8;
-}
-
-/* Program the hardware MAC address from dev->dev_addr.*/
-static int encx24j600_set_hw_macaddr(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- if (priv->hw_enabled) {
- netif_info(priv, drv, dev, "Hardware must be disabled to set Mac address\n");
- return -EBUSY;
- }
-
- mutex_lock(&priv->lock);
-
- netif_info(priv, drv, dev, "%s: Setting MAC address to %pM\n",
- dev->name, dev->dev_addr);
-
- encx24j600_write_reg(priv, MAADR3, (dev->dev_addr[4] |
- dev->dev_addr[5] << 8));
- encx24j600_write_reg(priv, MAADR2, (dev->dev_addr[2] |
- dev->dev_addr[3] << 8));
- encx24j600_write_reg(priv, MAADR1, (dev->dev_addr[0] |
- dev->dev_addr[1] << 8));
-
- mutex_unlock(&priv->lock);
-
- return 0;
-}
-
-/* Store the new hardware address in dev->dev_addr, and update the MAC.*/
-static int encx24j600_set_mac_address(struct net_device *dev, void *addr)
-{
- struct sockaddr *address = addr;
-
- if (netif_running(dev))
- return -EBUSY;
- if (!is_valid_ether_addr(address->sa_data))
- return -EADDRNOTAVAIL;
-
- memcpy(dev->dev_addr, address->sa_data, dev->addr_len);
- return encx24j600_set_hw_macaddr(dev);
-}
-
-static int encx24j600_open(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- int ret = request_threaded_irq(priv->ctx.spi->irq, NULL, encx24j600_isr,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- DRV_NAME, priv);
- if (unlikely(ret < 0)) {
- netdev_err(dev, "request irq %d failed (ret = %d)\n",
- priv->ctx.spi->irq, ret);
- return ret;
- }
-
- encx24j600_hw_disable(priv);
- encx24j600_hw_init(priv);
- encx24j600_hw_enable(priv);
- netif_start_queue(dev);
-
- return 0;
-}
-
-static int encx24j600_stop(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- netif_stop_queue(dev);
- free_irq(priv->ctx.spi->irq, priv);
- return 0;
-}
-
-static void encx24j600_setrx_proc(struct kthread_work *ws)
-{
- struct encx24j600_priv *priv =
- container_of(ws, struct encx24j600_priv, setrx_work);
-
- mutex_lock(&priv->lock);
- encx24j600_set_rxfilter_mode(priv);
- mutex_unlock(&priv->lock);
-}
-
-static void encx24j600_set_multicast_list(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
- int oldfilter = priv->rxfilter;
-
- if (dev->flags & IFF_PROMISC) {
- netif_dbg(priv, link, dev, "promiscuous mode\n");
- priv->rxfilter = RXFILTER_PROMISC;
- } else if ((dev->flags & IFF_ALLMULTI) || !netdev_mc_empty(dev)) {
- netif_dbg(priv, link, dev, "%smulticast mode\n",
- (dev->flags & IFF_ALLMULTI) ? "all-" : "");
- priv->rxfilter = RXFILTER_MULTI;
- } else {
- netif_dbg(priv, link, dev, "normal mode\n");
- priv->rxfilter = RXFILTER_NORMAL;
- }
-
- if (oldfilter != priv->rxfilter)
- queue_kthread_work(&priv->kworker, &priv->setrx_work);
-}
-
-static void encx24j600_hw_tx(struct encx24j600_priv *priv)
-{
- struct net_device *dev = priv->ndev;
- netif_info(priv, tx_queued, dev, "TX Packet Len:%d\n",
- priv->tx_skb->len);
-
- if (netif_msg_pktdata(priv))
- dump_packet("TX", priv->tx_skb->len, priv->tx_skb->data);
-
- if (encx24j600_read_reg(priv, EIR) & TXABTIF)
- /* Last transmition aborted due to error. Reset TX interface */
- encx24j600_reset_hw_tx(priv);
-
- /* Clear the TXIF flag if were previously set */
- encx24j600_clr_bits(priv, EIR, TXIF);
-
- /* Set the data pointer to the TX buffer address in the SRAM */
- encx24j600_write_reg(priv, EGPWRPT, ENC_TX_BUF_START);
-
- /* Copy the packet into the SRAM */
- encx24j600_raw_write(priv, WGPDATA, (u8 *)priv->tx_skb->data,
- priv->tx_skb->len);
-
- /* Program the Tx buffer start pointer */
- encx24j600_write_reg(priv, ETXST, ENC_TX_BUF_START);
-
- /* Program the packet length */
- encx24j600_write_reg(priv, ETXLEN, priv->tx_skb->len);
-
- /* Start the transmission */
- encx24j600_cmd(priv, SETTXRTS);
-}
-
-static void encx24j600_tx_proc(struct kthread_work *ws)
-{
- struct encx24j600_priv *priv =
- container_of(ws, struct encx24j600_priv, tx_work);
-
- mutex_lock(&priv->lock);
- encx24j600_hw_tx(priv);
- mutex_unlock(&priv->lock);
-}
-
-static netdev_tx_t encx24j600_tx(struct sk_buff *skb, struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- netif_stop_queue(dev);
-
- /* save the timestamp */
- dev->trans_start = jiffies;
-
- /* Remember the skb for deferred processing */
- priv->tx_skb = skb;
-
- queue_kthread_work(&priv->kworker, &priv->tx_work);
-
- return NETDEV_TX_OK;
-}
-
-/* Deal with a transmit timeout */
-static void encx24j600_tx_timeout(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- netif_err(priv, tx_err, dev, "TX timeout at %ld, latency %ld\n",
- jiffies, jiffies - dev->trans_start);
-
- dev->stats.tx_errors++;
- netif_wake_queue(dev);
- return;
-}
-
-static int encx24j600_get_regs_len(struct net_device *dev)
-{
- return SFR_REG_COUNT;
-}
-
-static void encx24j600_get_regs(struct net_device *dev,
- struct ethtool_regs *regs, void *p)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
- u16 *buff = p;
- u8 reg;
-
- regs->version = 1;
- mutex_lock(&priv->lock);
- for (reg = 0; reg < SFR_REG_COUNT; reg += 2) {
- unsigned int val = 0;
- /* ignore errors for unreadable registers */
- regmap_read(priv->ctx.regmap, reg, &val);
- buff[reg] = val & 0xffff;
- }
- mutex_unlock(&priv->lock);
-}
-
-static void encx24j600_get_drvinfo(struct net_device *dev,
- struct ethtool_drvinfo *info)
-{
- strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
- strlcpy(info->version, DRV_VERSION, sizeof(info->version));
- strlcpy(info->bus_info, dev_name(dev->dev.parent),
- sizeof(info->bus_info));
-}
-
-static int encx24j600_get_settings(struct net_device *dev,
- struct ethtool_cmd *cmd)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
-
- cmd->transceiver = XCVR_INTERNAL;
- cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
- SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
- SUPPORTED_Autoneg | SUPPORTED_TP;
-
- ethtool_cmd_speed_set(cmd, priv->speed);
- cmd->duplex = priv->full_duplex ? DUPLEX_FULL : DUPLEX_HALF;
- cmd->port = PORT_TP;
- cmd->autoneg = priv->autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
-
- return 0;
-}
-
-static int encx24j600_set_settings(struct net_device *dev,
- struct ethtool_cmd *cmd)
-{
- return encx24j600_setlink(dev, cmd->autoneg,
- ethtool_cmd_speed(cmd), cmd->duplex);
-}
-
-static u32 encx24j600_get_msglevel(struct net_device *dev)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
- return priv->msg_enable;
-}
-
-static void encx24j600_set_msglevel(struct net_device *dev, u32 val)
-{
- struct encx24j600_priv *priv = netdev_priv(dev);
- priv->msg_enable = val;
-}
-
-static const struct ethtool_ops encx24j600_ethtool_ops = {
- .get_settings = encx24j600_get_settings,
- .set_settings = encx24j600_set_settings,
- .get_drvinfo = encx24j600_get_drvinfo,
- .get_msglevel = encx24j600_get_msglevel,
- .set_msglevel = encx24j600_set_msglevel,
- .get_regs_len = encx24j600_get_regs_len,
- .get_regs = encx24j600_get_regs,
-};
-
-static const struct net_device_ops encx24j600_netdev_ops = {
- .ndo_open = encx24j600_open,
- .ndo_stop = encx24j600_stop,
- .ndo_start_xmit = encx24j600_tx,
- .ndo_set_rx_mode = encx24j600_set_multicast_list,
- .ndo_set_mac_address = encx24j600_set_mac_address,
- .ndo_tx_timeout = encx24j600_tx_timeout,
- .ndo_validate_addr = eth_validate_addr,
-};
-
-static int encx24j600_spi_probe(struct spi_device *spi)
-{
- int ret;
-
- struct net_device *ndev;
- struct encx24j600_priv *priv;
-
- ndev = alloc_etherdev(sizeof(struct encx24j600_priv));
-
- if (!ndev) {
- ret = -ENOMEM;
- goto error_out;
- }
-
- priv = netdev_priv(ndev);
- spi_set_drvdata(spi, priv);
- dev_set_drvdata(&spi->dev, priv);
- SET_NETDEV_DEV(ndev, &spi->dev);
-
- priv->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
- priv->ndev = ndev;
-
- /* Default configuration PHY configuration */
- priv->full_duplex = true;
- priv->autoneg = AUTONEG_ENABLE;
- priv->speed = SPEED_100;
-
- priv->ctx.spi = spi;
- devm_regmap_init_encx24j600(&spi->dev, &priv->ctx);
- ndev->irq = spi->irq;
- ndev->netdev_ops = &encx24j600_netdev_ops;
-
- mutex_init(&priv->lock);
-
- /* Reset device and check if it is connected */
- if (encx24j600_hw_reset(priv)) {
- netif_err(priv, probe, ndev,
- DRV_NAME ": Chip is not detected\n");
- ret = -EIO;
- goto out_free;
- }
-
- /* Initialize the device HW to the consistent state */
- if (encx24j600_hw_init(priv)) {
- netif_err(priv, probe, ndev,
- DRV_NAME ": HW initialization error\n");
- ret = -EIO;
- goto out_free;
- }
-
- init_kthread_worker(&priv->kworker);
- init_kthread_work(&priv->tx_work, encx24j600_tx_proc);
- init_kthread_work(&priv->setrx_work, encx24j600_setrx_proc);
-
- priv->kworker_task = kthread_run(kthread_worker_fn, &priv->kworker,
- "encx24j600");
-
- if (IS_ERR(priv->kworker_task)) {
- ret = PTR_ERR(priv->kworker_task);
- goto out_free;
- }
-
- /* Get the MAC address from the chip */
- encx24j600_hw_get_macaddr(priv, ndev->dev_addr);
-
- ndev->ethtool_ops = &encx24j600_ethtool_ops;
-
- ret = register_netdev(ndev);
- if (unlikely(ret)) {
- netif_err(priv, probe, ndev, "Error %d initializing card encx24j600 card\n",
- ret);
- goto out_free;
- }
-
- netif_info(priv, drv, priv->ndev, "MAC address %pM\n", ndev->dev_addr);
-
- return ret;
-
-out_free:
- free_netdev(ndev);
-
-error_out:
- return ret;
-}
-
-static int encx24j600_spi_remove(struct spi_device *spi)
-{
- struct encx24j600_priv *priv = dev_get_drvdata(&spi->dev);
-
- unregister_netdev(priv->ndev);
-
- free_netdev(priv->ndev);
-
- return 0;
-}
-
-static const struct spi_device_id encx24j600_spi_id_table = {
- .name = "encx24j600"
-};
-
-static struct spi_driver encx24j600_spi_net_driver = {
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- .bus = &spi_bus_type,
- },
- .probe = encx24j600_spi_probe,
- .remove = encx24j600_spi_remove,
- .id_table = &encx24j600_spi_id_table,
-};
-
-static int __init encx24j600_init(void)
-{
- return spi_register_driver(&encx24j600_spi_net_driver);
-}
-module_init(encx24j600_init);
-
-void encx24j600_exit(void)
-{
- spi_unregister_driver(&encx24j600_spi_net_driver);
-}
-module_exit(encx24j600_exit);
-
-MODULE_DESCRIPTION(DRV_NAME " ethernet driver");
-MODULE_AUTHOR("Jon Ringle <jringle@gridpoint.com>");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("spi:" DRV_NAME);
+++ /dev/null
-/**
- * encx24j600_hw.h: Register definitions
- *
- */
-
-#ifndef _ENCX24J600_HW_H
-#define _ENCX24J600_HW_H
-
-struct encx24j600_context {
- struct spi_device *spi;
- struct regmap *regmap;
- struct regmap *phymap;
- struct mutex mutex; /* mutex to protect access to regmap */
- int bank;
-};
-
-void devm_regmap_init_encx24j600(struct device *dev,
- struct encx24j600_context *ctx);
-
-/* Single-byte instructions */
-#define BANK_SELECT(bank) (0xC0 | ((bank & (BANK_MASK >> BANK_SHIFT)) << 1))
-#define B0SEL 0xC0 /* Bank 0 Select */
-#define B1SEL 0xC2 /* Bank 1 Select */
-#define B2SEL 0xC4 /* Bank 2 Select */
-#define B3SEL 0xC6 /* Bank 3 Select */
-#define SETETHRST 0xCA /* System Reset */
-#define FCDISABLE 0xE0 /* Flow Control Disable */
-#define FCSINGLE 0xE2 /* Flow Control Single */
-#define FCMULTIPLE 0xE4 /* Flow Control Multiple */
-#define FCCLEAR 0xE6 /* Flow Control Clear */
-#define SETPKTDEC 0xCC /* Decrement Packet Counter */
-#define DMASTOP 0xD2 /* DMA Stop */
-#define DMACKSUM 0xD8 /* DMA Start Checksum */
-#define DMACKSUMS 0xDA /* DMA Start Checksum with Seed */
-#define DMACOPY 0xDC /* DMA Start Copy */
-#define DMACOPYS 0xDE /* DMA Start Copy and Checksum with Seed */
-#define SETTXRTS 0xD4 /* Request Packet Transmission */
-#define ENABLERX 0xE8 /* Enable RX */
-#define DISABLERX 0xEA /* Disable RX */
-#define SETEIE 0xEC /* Enable Interrupts */
-#define CLREIE 0xEE /* Disable Interrupts */
-
-/* Two byte instructions */
-#define RBSEL 0xC8 /* Read Bank Select */
-
-/* Three byte instructions */
-#define WGPRDPT 0x60 /* Write EGPRDPT */
-#define RGPRDPT 0x62 /* Read EGPRDPT */
-#define WRXRDPT 0x64 /* Write ERXRDPT */
-#define RRXRDPT 0x66 /* Read ERXRDPT */
-#define WUDARDPT 0x68 /* Write EUDARDPT */
-#define RUDARDPT 0x6A /* Read EUDARDPT */
-#define WGPWRPT 0x6C /* Write EGPWRPT */
-#define RGPWRPT 0x6E /* Read EGPWRPT */
-#define WRXWRPT 0x70 /* Write ERXWRPT */
-#define RRXWRPT 0x72 /* Read ERXWRPT */
-#define WUDAWRPT 0x74 /* Write EUDAWRPT */
-#define RUDAWRPT 0x76 /* Read EUDAWRPT */
-
-/* n byte instructions */
-#define RCRCODE 0x00
-#define WCRCODE 0x40
-#define BFSCODE 0x80
-#define BFCCODE 0xA0
-#define RCR(addr) (RCRCODE | (addr & ADDR_MASK)) /* Read Control Register */
-#define WCR(addr) (WCRCODE | (addr & ADDR_MASK)) /* Write Control Register */
-#define RCRU 0x20 /* Read Control Register Unbanked */
-#define WCRU 0x22 /* Write Control Register Unbanked */
-#define BFS(addr) (BFSCODE | (addr & ADDR_MASK)) /* Bit Field Set */
-#define BFC(addr) (BFCCODE | (addr & ADDR_MASK)) /* Bit Field Clear */
-#define BFSU 0x24 /* Bit Field Set Unbanked */
-#define BFCU 0x26 /* Bit Field Clear Unbanked */
-#define RGPDATA 0x28 /* Read EGPDATA */
-#define WGPDATA 0x2A /* Write EGPDATA */
-#define RRXDATA 0x2C /* Read ERXDATA */
-#define WRXDATA 0x2E /* Write ERXDATA */
-#define RUDADATA 0x30 /* Read EUDADATA */
-#define WUDADATA 0x32 /* Write EUDADATA */
-
-#define SFR_REG_COUNT 0xA0
-
-/* ENC424J600 Control Registers
- * Control register definitions are a combination of address
- * and bank number
- * - Register address (bits 0-4)
- * - Bank number (bits 5-6)
- */
-#define ADDR_MASK 0x1F
-#define BANK_MASK 0x60
-#define BANK_SHIFT 5
-
-/* All-bank registers */
-#define EUDAST 0x16
-#define EUDAND 0x18
-#define ESTAT 0x1A
-#define EIR 0x1C
-#define ECON1 0x1E
-
-/* Bank 0 registers */
-#define ETXST (0x00 | 0x00)
-#define ETXLEN (0x02 | 0x00)
-#define ERXST (0x04 | 0x00)
-#define ERXTAIL (0x06 | 0x00)
-#define ERXHEAD (0x08 | 0x00)
-#define EDMAST (0x0A | 0x00)
-#define EDMALEN (0x0C | 0x00)
-#define EDMADST (0x0E | 0x00)
-#define EDMACS (0x10 | 0x00)
-#define ETXSTAT (0x12 | 0x00)
-#define ETXWIRE (0x14 | 0x00)
-
-/* Bank 1 registers */
-#define EHT1 (0x00 | 0x20)
-#define EHT2 (0x02 | 0x20)
-#define EHT3 (0x04 | 0x20)
-#define EHT4 (0x06 | 0x20)
-#define EPMM1 (0x08 | 0x20)
-#define EPMM2 (0x0A | 0x20)
-#define EPMM3 (0x0C | 0x20)
-#define EPMM4 (0x0E | 0x20)
-#define EPMCS (0x10 | 0x20)
-#define EPMO (0x12 | 0x20)
-#define ERXFCON (0x14 | 0x20)
-
-/* Bank 2 registers */
-#define MACON1 (0x00 | 0x40)
-#define MACON2 (0x02 | 0x40)
-#define MABBIPG (0x04 | 0x40)
-#define MAIPG (0x06 | 0x40)
-#define MACLCON (0x08 | 0x40)
-#define MAMXFL (0x0A | 0x40)
-#define MICMD (0x12 | 0x40)
-#define MIREGADR (0x14 | 0x40)
-
-/* Bank 3 registers */
-#define MAADR3 (0x00 | 0x60)
-#define MAADR2 (0x02 | 0x60)
-#define MAADR1 (0x04 | 0x60)
-#define MIWR (0x06 | 0x60)
-#define MIRD (0x08 | 0x60)
-#define MISTAT (0x0A | 0x60)
-#define EPAUS (0x0C | 0x60)
-#define ECON2 (0x0E | 0x60)
-#define ERXWM (0x10 | 0x60)
-#define EIE (0x12 | 0x60)
-#define EIDLED (0x14 | 0x60)
-
-/* Unbanked registers */
-#define EGPDATA (0x00 | 0x80)
-#define ERXDATA (0x02 | 0x80)
-#define EUDADATA (0x04 | 0x80)
-#define EGPRDPT (0x06 | 0x80)
-#define EGPWRPT (0x08 | 0x80)
-#define ERXRDPT (0x0A | 0x80)
-#define ERXWRPT (0x0C | 0x80)
-#define EUDARDPT (0x0E | 0x80)
-#define EUDAWRPT (0x10 | 0x80)
-
-
-/* Register bit definitions */
-/* ESTAT */
-#define INT (1 << 15)
-#define FCIDLE (1 << 14)
-#define RXBUSY (1 << 13)
-#define CLKRDY (1 << 12)
-#define PHYDPX (1 << 10)
-#define PHYLNK (1 << 8)
-
-/* EIR */
-#define CRYPTEN (1 << 15)
-#define MODEXIF (1 << 14)
-#define HASHIF (1 << 13)
-#define AESIF (1 << 12)
-#define LINKIF (1 << 11)
-#define PKTIF (1 << 6)
-#define DMAIF (1 << 5)
-#define TXIF (1 << 3)
-#define TXABTIF (1 << 2)
-#define RXABTIF (1 << 1)
-#define PCFULIF (1 << 0)
-
-/* ECON1 */
-#define MODEXST (1 << 15)
-#define HASHEN (1 << 14)
-#define HASHOP (1 << 13)
-#define HASHLST (1 << 12)
-#define AESST (1 << 11)
-#define AESOP1 (1 << 10)
-#define AESOP0 (1 << 9)
-#define PKTDEC (1 << 8)
-#define FCOP1 (1 << 7)
-#define FCOP0 (1 << 6)
-#define DMAST (1 << 5)
-#define DMACPY (1 << 4)
-#define DMACSSD (1 << 3)
-#define DMANOCS (1 << 2)
-#define TXRTS (1 << 1)
-#define RXEN (1 << 0)
-
-/* ETXSTAT */
-#define LATECOL (1 << 10)
-#define MAXCOL (1 << 9)
-#define EXDEFER (1 << 8)
-#define ETXSTATL_DEFER (1 << 7)
-#define CRCBAD (1 << 4)
-#define COLCNT_MASK 0xF
-
-/* ERXFCON */
-#define HTEN (1 << 15)
-#define MPEN (1 << 14)
-#define NOTPM (1 << 12)
-#define PMEN3 (1 << 11)
-#define PMEN2 (1 << 10)
-#define PMEN1 (1 << 9)
-#define PMEN0 (1 << 8)
-#define CRCEEN (1 << 7)
-#define CRCEN (1 << 6)
-#define RUNTEEN (1 << 5)
-#define RUNTEN (1 << 4)
-#define UCEN (1 << 3)
-#define NOTMEEN (1 << 2)
-#define MCEN (1 << 1)
-#define BCEN (1 << 0)
-
-/* MACON1 */
-#define LOOPBK (1 << 4)
-#define RXPAUS (1 << 2)
-#define PASSALL (1 << 1)
-
-/* MACON2 */
-#define MACON2_DEFER (1 << 14)
-#define BPEN (1 << 13)
-#define NOBKOFF (1 << 12)
-#define PADCFG2 (1 << 7)
-#define PADCFG1 (1 << 6)
-#define PADCFG0 (1 << 5)
-#define TXCRCEN (1 << 4)
-#define PHDREN (1 << 3)
-#define HFRMEN (1 << 2)
-#define MACON2_RSV1 (1 << 1)
-#define FULDPX (1 << 0)
-
-/* MAIPG */
-/* value of the high byte is given by the reserved bits,
- * value of the low byte is recomended setting of the
- * IPG parameter.
- */
-#define MAIPGH_VAL 0x0C
-#define MAIPGL_VAL 0x12
-
-/* MIREGADRH */
-#define MIREGADR_VAL (1 << 8)
-
-/* MIREGADRL */
-#define PHREG_MASK 0x1F
-
-/* MICMD */
-#define MIISCAN (1 << 1)
-#define MIIRD (1 << 0)
-
-/* MISTAT */
-#define NVALID (1 << 2)
-#define SCAN (1 << 1)
-#define BUSY (1 << 0)
-
-/* ECON2 */
-#define ETHEN (1 << 15)
-#define STRCH (1 << 14)
-#define TXMAC (1 << 13)
-#define SHA1MD5 (1 << 12)
-#define COCON3 (1 << 11)
-#define COCON2 (1 << 10)
-#define COCON1 (1 << 9)
-#define COCON0 (1 << 8)
-#define AUTOFC (1 << 7)
-#define TXRST (1 << 6)
-#define RXRST (1 << 5)
-#define ETHRST (1 << 4)
-#define MODLEN1 (1 << 3)
-#define MODLEN0 (1 << 2)
-#define AESLEN1 (1 << 1)
-#define AESLEN0 (1 << 0)
-
-/* EIE */
-#define INTIE (1 << 15)
-#define MODEXIE (1 << 14)
-#define HASHIE (1 << 13)
-#define AESIE (1 << 12)
-#define LINKIE (1 << 11)
-#define PKTIE (1 << 6)
-#define DMAIE (1 << 5)
-#define TXIE (1 << 3)
-#define TXABTIE (1 << 2)
-#define RXABTIE (1 << 1)
-#define PCFULIE (1 << 0)
-
-/* EIDLED */
-#define LACFG3 (1 << 15)
-#define LACFG2 (1 << 14)
-#define LACFG1 (1 << 13)
-#define LACFG0 (1 << 12)
-#define LBCFG3 (1 << 11)
-#define LBCFG2 (1 << 10)
-#define LBCFG1 (1 << 9)
-#define LBCFG0 (1 << 8)
-#define DEVID_SHIFT 5
-#define DEVID_MASK (0x7 << DEVID_SHIFT)
-#define REVID_SHIFT 0
-#define REVID_MASK (0x1F << REVID_SHIFT)
-
-/* PHY registers */
-#define PHCON1 0x00
-#define PHSTAT1 0x01
-#define PHANA 0x04
-#define PHANLPA 0x05
-#define PHANE 0x06
-#define PHCON2 0x11
-#define PHSTAT2 0x1B
-#define PHSTAT3 0x1F
-
-/* PHCON1 */
-#define PRST (1 << 15)
-#define PLOOPBK (1 << 14)
-#define SPD100 (1 << 13)
-#define ANEN (1 << 12)
-#define PSLEEP (1 << 11)
-#define RENEG (1 << 9)
-#define PFULDPX (1 << 8)
-
-/* PHSTAT1 */
-#define FULL100 (1 << 14)
-#define HALF100 (1 << 13)
-#define FULL10 (1 << 12)
-#define HALF10 (1 << 11)
-#define ANDONE (1 << 5)
-#define LRFAULT (1 << 4)
-#define ANABLE (1 << 3)
-#define LLSTAT (1 << 2)
-#define EXTREGS (1 << 0)
-
-/* PHSTAT2 */
-#define PLRITY (1 << 4)
-
-/* PHSTAT3 */
-#define PHY3SPD100 (1 << 3)
-#define PHY3DPX (1 << 4)
-#define SPDDPX_SHIFT 2
-#define SPDDPX_MASK (0x7 << SPDDPX_SHIFT)
-
-/* PHANA */
-/* Default value for PHY initialization*/
-#define PHANA_DEFAULT 0x05E1
-
-/* PHANE */
-#define PDFLT (1 << 4)
-#define LPARCD (1 << 1)
-#define LPANABL (1 << 0)
-
-#define EUDAST_TEST_VAL 0x1234
-
-#define TSV_SIZE 7
-
-#define ENCX24J600_DEV_ID 0x1
-
-/* Configuration */
-
-/* Led is on when the link is present and driven low
- * temporarily when packet is TX'd or RX'd
- */
-#define LED_A_SETTINGS 0xC
-
-/* Led is on if the link is in 100 Mbps mode */
-#define LED_B_SETTINGS 0x8
-
-/* maximum ethernet frame length
- * Currently not used as a limit anywhere
- * (we're using the "huge frame enable" feature of
- * enc424j600).
- */
-#define MAX_FRAMELEN 1518
-
-/* Size in bytes of the receive buffer in enc424j600.
- * Must be word aligned (even).
- */
-#define RX_BUFFER_SIZE (15 * MAX_FRAMELEN)
-
-/* Start of the general purpose area in sram */
-#define SRAM_GP_START 0x0
-
-/* SRAM size */
-#define SRAM_SIZE 0x6000
-
-/* Start of the receive buffer */
-#define ERXST_VAL (SRAM_SIZE - RX_BUFFER_SIZE)
-
-#define RSV_RXLONGEVDROPEV 16
-#define RSV_CARRIEREV 18
-#define RSV_CRCERROR 20
-#define RSV_LENCHECKERR 21
-#define RSV_LENOUTOFRANGE 22
-#define RSV_RXOK 23
-#define RSV_RXMULTICAST 24
-#define RSV_RXBROADCAST 25
-#define RSV_DRIBBLENIBBLE 26
-#define RSV_RXCONTROLFRAME 27
-#define RSV_RXPAUSEFRAME 28
-#define RSV_RXUNKNOWNOPCODE 29
-#define RSV_RXTYPEVLAN 30
-
-#define RSV_RUNTFILTERMATCH 31
-#define RSV_NOTMEFILTERMATCH 32
-#define RSV_HASHFILTERMATCH 33
-#define RSV_MAGICPKTFILTERMATCH 34
-#define RSV_PTRNMTCHFILTERMATCH 35
-#define RSV_UNICASTFILTERMATCH 36
-
-#define RSV_SIZE 8
-#define RSV_BITMASK(x) (1 << ((x) - 16))
-#define RSV_GETBIT(x, y) (((x) & RSV_BITMASK(y)) ? 1 : 0)
-
-struct rsv {
- u16 next_packet;
- u16 len;
- u32 rxstat;
-};
-
-/* Put RX buffer at 0 as suggested by the Errata datasheet */
-
-#define RXSTART_INIT ERXST_VAL
-#define RXEND_INIT 0x5FFF
-
-int regmap_encx24j600_spi_write(void *context, u8 reg, const u8 *data,
- size_t count);
-int regmap_encx24j600_spi_read(void *context, u8 reg, u8 *data, size_t count);
-
-
-#endif
projects / linux-beck.git / commitdiff