diff options
author | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-05-12 20:21:07 -0700 |
---|---|---|
committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-08-10 20:04:03 -0700 |
commit | ae150435b59e68de00546330241727f2fec54517 (patch) | |
tree | 29a1cb71053306e8a8e0dff1f927d16a9a396917 /drivers/net/smc911x.c | |
parent | aa43c2158d5ae1dc76cccb08cd57a3ffd32c3825 (diff) |
smsc: Move the SMC (SMSC) drivers
Moves the SMC (SMSC) drivers into drivers/net/ethernet/smsc/ and the
necessary Kconfig and Makefile changes. Also did some cleanup
of NET_VENDOR_SMC Kconfig tag for the 8390 based drivers.
CC: Nicolas Pitre <nico@fluxnic.net>
CC: Donald Becker <becker@scyld.com>
CC: Erik Stahlman <erik@vt.edu>
CC: Dustin McIntire <dustin@sensoria.com>
CC: Steve Glendinning <steve.glendinning@smsc.com>
CC: David Hinds <dahinds@users.sourceforge.net>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/smc911x.c')
-rw-r--r-- | drivers/net/smc911x.c | 2210 |
1 files changed, 0 insertions, 2210 deletions
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c deleted file mode 100644 index a91fe172302..00000000000 --- a/drivers/net/smc911x.c +++ /dev/null @@ -1,2210 +0,0 @@ -/* - * smc911x.c - * This is a driver for SMSC's LAN911{5,6,7,8} single-chip Ethernet devices. - * - * Copyright (C) 2005 Sensoria Corp - * Derived from the unified SMC91x driver by Nicolas Pitre - * and the smsc911x.c reference driver by SMSC - * - * 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. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Arguments: - * watchdog = TX watchdog timeout - * tx_fifo_kb = Size of TX FIFO in KB - * - * History: - * 04/16/05 Dustin McIntire Initial version - */ -static const char version[] = - "smc911x.c: v1.0 04-16-2005 by Dustin McIntire <dustin@sensoria.com>\n"; - -/* Debugging options */ -#define ENABLE_SMC_DEBUG_RX 0 -#define ENABLE_SMC_DEBUG_TX 0 -#define ENABLE_SMC_DEBUG_DMA 0 -#define ENABLE_SMC_DEBUG_PKTS 0 -#define ENABLE_SMC_DEBUG_MISC 0 -#define ENABLE_SMC_DEBUG_FUNC 0 - -#define SMC_DEBUG_RX ((ENABLE_SMC_DEBUG_RX ? 1 : 0) << 0) -#define SMC_DEBUG_TX ((ENABLE_SMC_DEBUG_TX ? 1 : 0) << 1) -#define SMC_DEBUG_DMA ((ENABLE_SMC_DEBUG_DMA ? 1 : 0) << 2) -#define SMC_DEBUG_PKTS ((ENABLE_SMC_DEBUG_PKTS ? 1 : 0) << 3) -#define SMC_DEBUG_MISC ((ENABLE_SMC_DEBUG_MISC ? 1 : 0) << 4) -#define SMC_DEBUG_FUNC ((ENABLE_SMC_DEBUG_FUNC ? 1 : 0) << 5) - -#ifndef SMC_DEBUG -#define SMC_DEBUG ( SMC_DEBUG_RX | \ - SMC_DEBUG_TX | \ - SMC_DEBUG_DMA | \ - SMC_DEBUG_PKTS | \ - SMC_DEBUG_MISC | \ - SMC_DEBUG_FUNC \ - ) -#endif - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/errno.h> -#include <linux/ioport.h> -#include <linux/crc32.h> -#include <linux/device.h> -#include <linux/platform_device.h> -#include <linux/spinlock.h> -#include <linux/ethtool.h> -#include <linux/mii.h> -#include <linux/workqueue.h> - -#include <linux/netdevice.h> -#include <linux/etherdevice.h> -#include <linux/skbuff.h> - -#include <asm/io.h> - -#include "smc911x.h" - -/* - * Transmit timeout, default 5 seconds. - */ -static int watchdog = 5000; -module_param(watchdog, int, 0400); -MODULE_PARM_DESC(watchdog, "transmit timeout in milliseconds"); - -static int tx_fifo_kb=8; -module_param(tx_fifo_kb, int, 0400); -MODULE_PARM_DESC(tx_fifo_kb,"transmit FIFO size in KB (1<x<15)(default=8)"); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:smc911x"); - -/* - * The internal workings of the driver. If you are changing anything - * here with the SMC stuff, you should have the datasheet and know - * what you are doing. - */ -#define CARDNAME "smc911x" - -/* - * Use power-down feature of the chip - */ -#define POWER_DOWN 1 - -#if SMC_DEBUG > 0 -#define DBG(n, args...) \ - do { \ - if (SMC_DEBUG & (n)) \ - printk(args); \ - } while (0) - -#define PRINTK(args...) printk(args) -#else -#define DBG(n, args...) do { } while (0) -#define PRINTK(args...) printk(KERN_DEBUG args) -#endif - -#if SMC_DEBUG_PKTS > 0 -static void PRINT_PKT(u_char *buf, int length) -{ - int i; - int remainder; - int lines; - - lines = length / 16; - remainder = length % 16; - - for (i = 0; i < lines ; i ++) { - int cur; - for (cur = 0; cur < 8; cur++) { - u_char a, b; - a = *buf++; - b = *buf++; - printk("%02x%02x ", a, b); - } - printk("\n"); - } - for (i = 0; i < remainder/2 ; i++) { - u_char a, b; - a = *buf++; - b = *buf++; - printk("%02x%02x ", a, b); - } - printk("\n"); -} -#else -#define PRINT_PKT(x...) do { } while (0) -#endif - - -/* this enables an interrupt in the interrupt mask register */ -#define SMC_ENABLE_INT(lp, x) do { \ - unsigned int __mask; \ - __mask = SMC_GET_INT_EN((lp)); \ - __mask |= (x); \ - SMC_SET_INT_EN((lp), __mask); \ -} while (0) - -/* this disables an interrupt from the interrupt mask register */ -#define SMC_DISABLE_INT(lp, x) do { \ - unsigned int __mask; \ - __mask = SMC_GET_INT_EN((lp)); \ - __mask &= ~(x); \ - SMC_SET_INT_EN((lp), __mask); \ -} while (0) - -/* - * this does a soft reset on the device - */ -static void smc911x_reset(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int reg, timeout=0, resets=1, irq_cfg; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - /* Take out of PM setting first */ - if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) { - /* Write to the bytetest will take out of powerdown */ - SMC_SET_BYTE_TEST(lp, 0); - timeout=10; - do { - udelay(10); - reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_; - } while (--timeout && !reg); - if (timeout == 0) { - PRINTK("%s: smc911x_reset timeout waiting for PM restore\n", dev->name); - return; - } - } - - /* Disable all interrupts */ - spin_lock_irqsave(&lp->lock, flags); - SMC_SET_INT_EN(lp, 0); - spin_unlock_irqrestore(&lp->lock, flags); - - while (resets--) { - SMC_SET_HW_CFG(lp, HW_CFG_SRST_); - timeout=10; - do { - udelay(10); - reg = SMC_GET_HW_CFG(lp); - /* If chip indicates reset timeout then try again */ - if (reg & HW_CFG_SRST_TO_) { - PRINTK("%s: chip reset timeout, retrying...\n", dev->name); - resets++; - break; - } - } while (--timeout && (reg & HW_CFG_SRST_)); - } - if (timeout == 0) { - PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev->name); - return; - } - - /* make sure EEPROM has finished loading before setting GPIO_CFG */ - timeout=1000; - while (--timeout && (SMC_GET_E2P_CMD(lp) & E2P_CMD_EPC_BUSY_)) - udelay(10); - - if (timeout == 0){ - PRINTK("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev->name); - return; - } - - /* Initialize interrupts */ - SMC_SET_INT_EN(lp, 0); - SMC_ACK_INT(lp, -1); - - /* Reset the FIFO level and flow control settings */ - SMC_SET_HW_CFG(lp, (lp->tx_fifo_kb & 0xF) << 16); -//TODO: Figure out what appropriate pause time is - SMC_SET_FLOW(lp, FLOW_FCPT_ | FLOW_FCEN_); - SMC_SET_AFC_CFG(lp, lp->afc_cfg); - - - /* Set to LED outputs */ - SMC_SET_GPIO_CFG(lp, 0x70070000); - - /* - * Deassert IRQ for 1*10us for edge type interrupts - * and drive IRQ pin push-pull - */ - irq_cfg = (1 << 24) | INT_CFG_IRQ_EN_ | INT_CFG_IRQ_TYPE_; -#ifdef SMC_DYNAMIC_BUS_CONFIG - if (lp->cfg.irq_polarity) - irq_cfg |= INT_CFG_IRQ_POL_; -#endif - SMC_SET_IRQ_CFG(lp, irq_cfg); - - /* clear anything saved */ - if (lp->pending_tx_skb != NULL) { - dev_kfree_skb (lp->pending_tx_skb); - lp->pending_tx_skb = NULL; - dev->stats.tx_errors++; - dev->stats.tx_aborted_errors++; - } -} - -/* - * Enable Interrupts, Receive, and Transmit - */ -static void smc911x_enable(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned mask, cfg, cr; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - - SMC_SET_MAC_ADDR(lp, dev->dev_addr); - - /* Enable TX */ - cfg = SMC_GET_HW_CFG(lp); - cfg &= HW_CFG_TX_FIF_SZ_ | 0xFFF; - cfg |= HW_CFG_SF_; - SMC_SET_HW_CFG(lp, cfg); - SMC_SET_FIFO_TDA(lp, 0xFF); - /* Update TX stats on every 64 packets received or every 1 sec */ - SMC_SET_FIFO_TSL(lp, 64); - SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000); - - SMC_GET_MAC_CR(lp, cr); - cr |= MAC_CR_TXEN_ | MAC_CR_HBDIS_; - SMC_SET_MAC_CR(lp, cr); - SMC_SET_TX_CFG(lp, TX_CFG_TX_ON_); - - /* Add 2 byte padding to start of packets */ - SMC_SET_RX_CFG(lp, (2<<8) & RX_CFG_RXDOFF_); - - /* Turn on receiver and enable RX */ - if (cr & MAC_CR_RXEN_) - DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name); - - SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_); - - /* Interrupt on every received packet */ - SMC_SET_FIFO_RSA(lp, 0x01); - SMC_SET_FIFO_RSL(lp, 0x00); - - /* now, enable interrupts */ - mask = INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_ | INT_EN_RSFL_EN_ | - INT_EN_GPT_INT_EN_ | INT_EN_RXDFH_INT_EN_ | INT_EN_RXE_EN_ | - INT_EN_PHY_INT_EN_; - if (IS_REV_A(lp->revision)) - mask|=INT_EN_RDFL_EN_; - else { - mask|=INT_EN_RDFO_EN_; - } - SMC_ENABLE_INT(lp, mask); - - spin_unlock_irqrestore(&lp->lock, flags); -} - -/* - * this puts the device in an inactive state - */ -static void smc911x_shutdown(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned cr; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __func__); - - /* Disable IRQ's */ - SMC_SET_INT_EN(lp, 0); - - /* Turn of Rx and TX */ - spin_lock_irqsave(&lp->lock, flags); - SMC_GET_MAC_CR(lp, cr); - cr &= ~(MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_); - SMC_SET_MAC_CR(lp, cr); - SMC_SET_TX_CFG(lp, TX_CFG_STOP_TX_); - spin_unlock_irqrestore(&lp->lock, flags); -} - -static inline void smc911x_drop_pkt(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int fifo_count, timeout, reg; - - DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __func__); - fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF; - if (fifo_count <= 4) { - /* Manually dump the packet data */ - while (fifo_count--) - SMC_GET_RX_FIFO(lp); - } else { - /* Fast forward through the bad packet */ - SMC_SET_RX_DP_CTRL(lp, RX_DP_CTRL_FFWD_BUSY_); - timeout=50; - do { - udelay(10); - reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_; - } while (--timeout && reg); - if (timeout == 0) { - PRINTK("%s: timeout waiting for RX fast forward\n", dev->name); - } - } -} - -/* - * This is the procedure to handle the receipt of a packet. - * It should be called after checking for packet presence in - * the RX status FIFO. It must be called with the spin lock - * already held. - */ -static inline void smc911x_rcv(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int pkt_len, status; - struct sk_buff *skb; - unsigned char *data; - - DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", - dev->name, __func__); - status = SMC_GET_RX_STS_FIFO(lp); - DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x\n", - dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff); - pkt_len = (status & RX_STS_PKT_LEN_) >> 16; - if (status & RX_STS_ES_) { - /* Deal with a bad packet */ - dev->stats.rx_errors++; - if (status & RX_STS_CRC_ERR_) - dev->stats.rx_crc_errors++; - else { - if (status & RX_STS_LEN_ERR_) - dev->stats.rx_length_errors++; - if (status & RX_STS_MCAST_) - dev->stats.multicast++; - } - /* Remove the bad packet data from the RX FIFO */ - smc911x_drop_pkt(dev); - } else { - /* Receive a valid packet */ - /* Alloc a buffer with extra room for DMA alignment */ - skb=dev_alloc_skb(pkt_len+32); - if (unlikely(skb == NULL)) { - PRINTK( "%s: Low memory, rcvd packet dropped.\n", - dev->name); - dev->stats.rx_dropped++; - smc911x_drop_pkt(dev); - return; - } - /* Align IP header to 32 bits - * Note that the device is configured to add a 2 - * byte padding to the packet start, so we really - * want to write to the orignal data pointer */ - data = skb->data; - skb_reserve(skb, 2); - skb_put(skb,pkt_len-4); -#ifdef SMC_USE_DMA - { - unsigned int fifo; - /* Lower the FIFO threshold if possible */ - fifo = SMC_GET_FIFO_INT(lp); - if (fifo & 0xFF) fifo--; - DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n", - dev->name, fifo & 0xff); - SMC_SET_FIFO_INT(lp, fifo); - /* Setup RX DMA */ - SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_)); - lp->rxdma_active = 1; - lp->current_rx_skb = skb; - SMC_PULL_DATA(lp, data, (pkt_len+2+15) & ~15); - /* Packet processing deferred to DMA RX interrupt */ - } -#else - SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_)); - SMC_PULL_DATA(lp, data, pkt_len+2+3); - - DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name); - PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64); - skb->protocol = eth_type_trans(skb, dev); - netif_rx(skb); - dev->stats.rx_packets++; - dev->stats.rx_bytes += pkt_len-4; -#endif - } -} - -/* - * This is called to actually send a packet to the chip. - */ -static void smc911x_hardware_send_pkt(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - struct sk_buff *skb; - unsigned int cmdA, cmdB, len; - unsigned char *buf; - - DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __func__); - BUG_ON(lp->pending_tx_skb == NULL); - - skb = lp->pending_tx_skb; - lp->pending_tx_skb = NULL; - - /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */ - /* cmdB {31:16] pkt tag [10:0] length */ -#ifdef SMC_USE_DMA - /* 16 byte buffer alignment mode */ - buf = (char*)((u32)(skb->data) & ~0xF); - len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF; - cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) | - TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ | - skb->len; -#else - buf = (char*)((u32)skb->data & ~0x3); - len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3; - cmdA = (((u32)skb->data & 0x3) << 16) | - TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ | - skb->len; -#endif - /* tag is packet length so we can use this in stats update later */ - cmdB = (skb->len << 16) | (skb->len & 0x7FF); - - DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n", - dev->name, len, len, buf, cmdA, cmdB); - SMC_SET_TX_FIFO(lp, cmdA); - SMC_SET_TX_FIFO(lp, cmdB); - - DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name); - PRINT_PKT(buf, len <= 64 ? len : 64); - - /* Send pkt via PIO or DMA */ -#ifdef SMC_USE_DMA - lp->current_tx_skb = skb; - SMC_PUSH_DATA(lp, buf, len); - /* DMA complete IRQ will free buffer and set jiffies */ -#else - SMC_PUSH_DATA(lp, buf, len); - dev->trans_start = jiffies; - dev_kfree_skb_irq(skb); -#endif - if (!lp->tx_throttle) { - netif_wake_queue(dev); - } - SMC_ENABLE_INT(lp, INT_EN_TDFA_EN_ | INT_EN_TSFL_EN_); -} - -/* - * Since I am not sure if I will have enough room in the chip's ram - * to store the packet, I call this routine which either sends it - * now, or set the card to generates an interrupt when ready - * for the packet. - */ -static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int free; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", - dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - - BUG_ON(lp->pending_tx_skb != NULL); - - free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_; - DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free); - - /* Turn off the flow when running out of space in FIFO */ - if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) { - DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n", - dev->name, free); - /* Reenable when at least 1 packet of size MTU present */ - SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64); - lp->tx_throttle = 1; - netif_stop_queue(dev); - } - - /* Drop packets when we run out of space in TX FIFO - * Account for overhead required for: - * - * Tx command words 8 bytes - * Start offset 15 bytes - * End padding 15 bytes - */ - if (unlikely(free < (skb->len + 8 + 15 + 15))) { - printk("%s: No Tx free space %d < %d\n", - dev->name, free, skb->len); - lp->pending_tx_skb = NULL; - dev->stats.tx_errors++; - dev->stats.tx_dropped++; - spin_unlock_irqrestore(&lp->lock, flags); - dev_kfree_skb(skb); - return NETDEV_TX_OK; - } - -#ifdef SMC_USE_DMA - { - /* If the DMA is already running then defer this packet Tx until - * the DMA IRQ starts it - */ - if (lp->txdma_active) { - DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name); - lp->pending_tx_skb = skb; - netif_stop_queue(dev); - spin_unlock_irqrestore(&lp->lock, flags); - return NETDEV_TX_OK; - } else { - DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name); - lp->txdma_active = 1; - } - } -#endif - lp->pending_tx_skb = skb; - smc911x_hardware_send_pkt(dev); - spin_unlock_irqrestore(&lp->lock, flags); - - return NETDEV_TX_OK; -} - -/* - * This handles a TX status interrupt, which is only called when: - * - a TX error occurred, or - * - TX of a packet completed. - */ -static void smc911x_tx(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int tx_status; - - DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", - dev->name, __func__); - - /* Collect the TX status */ - while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) { - DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n", - dev->name, - (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16); - tx_status = SMC_GET_TX_STS_FIFO(lp); - dev->stats.tx_packets++; - dev->stats.tx_bytes+=tx_status>>16; - DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n", - dev->name, (tx_status & 0xffff0000) >> 16, - tx_status & 0x0000ffff); - /* count Tx errors, but ignore lost carrier errors when in - * full-duplex mode */ - if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx && - !(tx_status & 0x00000306))) { - dev->stats.tx_errors++; - } - if (tx_status & TX_STS_MANY_COLL_) { - dev->stats.collisions+=16; - dev->stats.tx_aborted_errors++; - } else { - dev->stats.collisions+=(tx_status & TX_STS_COLL_CNT_) >> 3; - } - /* carrier error only has meaning for half-duplex communication */ - if ((tx_status & (TX_STS_LOC_ | TX_STS_NO_CARR_)) && - !lp->ctl_rfduplx) { - dev->stats.tx_carrier_errors++; - } - if (tx_status & TX_STS_LATE_COLL_) { - dev->stats.collisions++; - dev->stats.tx_aborted_errors++; - } - } -} - - -/*---PHY CONTROL AND CONFIGURATION-----------------------------------------*/ -/* - * Reads a register from the MII Management serial interface - */ - -static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int phydata; - - SMC_GET_MII(lp, phyreg, phyaddr, phydata); - - DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n", - __func__, phyaddr, phyreg, phydata); - return phydata; -} - - -/* - * Writes a register to the MII Management serial interface - */ -static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg, - int phydata) -{ - struct smc911x_local *lp = netdev_priv(dev); - - DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n", - __func__, phyaddr, phyreg, phydata); - - SMC_SET_MII(lp, phyreg, phyaddr, phydata); -} - -/* - * Finds and reports the PHY address (115 and 117 have external - * PHY interface 118 has internal only - */ -static void smc911x_phy_detect(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int phyaddr; - unsigned int cfg, id1, id2; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - lp->phy_type = 0; - - /* - * Scan all 32 PHY addresses if necessary, starting at - * PHY#1 to PHY#31, and then PHY#0 last. - */ - switch(lp->version) { - case CHIP_9115: - case CHIP_9117: - case CHIP_9215: - case CHIP_9217: - cfg = SMC_GET_HW_CFG(lp); - if (cfg & HW_CFG_EXT_PHY_DET_) { - cfg &= ~HW_CFG_PHY_CLK_SEL_; - cfg |= HW_CFG_PHY_CLK_SEL_CLK_DIS_; - SMC_SET_HW_CFG(lp, cfg); - udelay(10); /* Wait for clocks to stop */ - - cfg |= HW_CFG_EXT_PHY_EN_; - SMC_SET_HW_CFG(lp, cfg); - udelay(10); /* Wait for clocks to stop */ - - cfg &= ~HW_CFG_PHY_CLK_SEL_; - cfg |= HW_CFG_PHY_CLK_SEL_EXT_PHY_; - SMC_SET_HW_CFG(lp, cfg); - udelay(10); /* Wait for clocks to stop */ - - cfg |= HW_CFG_SMI_SEL_; - SMC_SET_HW_CFG(lp, cfg); - - for (phyaddr = 1; phyaddr < 32; ++phyaddr) { - - /* Read the PHY identifiers */ - SMC_GET_PHY_ID1(lp, phyaddr & 31, id1); - SMC_GET_PHY_ID2(lp, phyaddr & 31, id2); - - /* Make sure it is a valid identifier */ - if (id1 != 0x0000 && id1 != 0xffff && - id1 != 0x8000 && id2 != 0x0000 && - id2 != 0xffff && id2 != 0x8000) { - /* Save the PHY's address */ - lp->mii.phy_id = phyaddr & 31; - lp->phy_type = id1 << 16 | id2; - break; - } - } - if (phyaddr < 32) - /* Found an external PHY */ - break; - } - default: - /* Internal media only */ - SMC_GET_PHY_ID1(lp, 1, id1); - SMC_GET_PHY_ID2(lp, 1, id2); - /* Save the PHY's address */ - lp->mii.phy_id = 1; - lp->phy_type = id1 << 16 | id2; - } - - DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n", - dev->name, id1, id2, lp->mii.phy_id); -} - -/* - * Sets the PHY to a configuration as determined by the user. - * Called with spin_lock held. - */ -static int smc911x_phy_fixed(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int phyaddr = lp->mii.phy_id; - int bmcr; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - /* Enter Link Disable state */ - SMC_GET_PHY_BMCR(lp, phyaddr, bmcr); - bmcr |= BMCR_PDOWN; - SMC_SET_PHY_BMCR(lp, phyaddr, bmcr); - - /* - * Set our fixed capabilities - * Disable auto-negotiation - */ - bmcr &= ~BMCR_ANENABLE; - if (lp->ctl_rfduplx) - bmcr |= BMCR_FULLDPLX; - - if (lp->ctl_rspeed == 100) - bmcr |= BMCR_SPEED100; - - /* Write our capabilities to the phy control register */ - SMC_SET_PHY_BMCR(lp, phyaddr, bmcr); - - /* Re-Configure the Receive/Phy Control register */ - bmcr &= ~BMCR_PDOWN; - SMC_SET_PHY_BMCR(lp, phyaddr, bmcr); - - return 1; -} - -/* - * smc911x_phy_reset - reset the phy - * @dev: net device - * @phy: phy address - * - * Issue a software reset for the specified PHY and - * wait up to 100ms for the reset to complete. We should - * not access the PHY for 50ms after issuing the reset. - * - * The time to wait appears to be dependent on the PHY. - * - */ -static int smc911x_phy_reset(struct net_device *dev, int phy) -{ - struct smc911x_local *lp = netdev_priv(dev); - int timeout; - unsigned long flags; - unsigned int reg; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - reg = SMC_GET_PMT_CTRL(lp); - reg &= ~0xfffff030; - reg |= PMT_CTRL_PHY_RST_; - SMC_SET_PMT_CTRL(lp, reg); - spin_unlock_irqrestore(&lp->lock, flags); - for (timeout = 2; timeout; timeout--) { - msleep(50); - spin_lock_irqsave(&lp->lock, flags); - reg = SMC_GET_PMT_CTRL(lp); - spin_unlock_irqrestore(&lp->lock, flags); - if (!(reg & PMT_CTRL_PHY_RST_)) { - /* extra delay required because the phy may - * not be completed with its reset - * when PHY_BCR_RESET_ is cleared. 256us - * should suffice, but use 500us to be safe - */ - udelay(500); - break; - } - } - - return reg & PMT_CTRL_PHY_RST_; -} - -/* - * smc911x_phy_powerdown - powerdown phy - * @dev: net device - * @phy: phy address - * - * Power down the specified PHY - */ -static void smc911x_phy_powerdown(struct net_device *dev, int phy) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int bmcr; - - /* Enter Link Disable state */ - SMC_GET_PHY_BMCR(lp, phy, bmcr); - bmcr |= BMCR_PDOWN; - SMC_SET_PHY_BMCR(lp, phy, bmcr); -} - -/* - * smc911x_phy_check_media - check the media status and adjust BMCR - * @dev: net device - * @init: set true for initialisation - * - * Select duplex mode depending on negotiation state. This - * also updates our carrier state. - */ -static void smc911x_phy_check_media(struct net_device *dev, int init) -{ - struct smc911x_local *lp = netdev_priv(dev); - int phyaddr = lp->mii.phy_id; - unsigned int bmcr, cr; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) { - /* duplex state has changed */ - SMC_GET_PHY_BMCR(lp, phyaddr, bmcr); - SMC_GET_MAC_CR(lp, cr); - if (lp->mii.full_duplex) { - DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name); - bmcr |= BMCR_FULLDPLX; - cr |= MAC_CR_RCVOWN_; - } else { - DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name); - bmcr &= ~BMCR_FULLDPLX; - cr &= ~MAC_CR_RCVOWN_; - } - SMC_SET_PHY_BMCR(lp, phyaddr, bmcr); - SMC_SET_MAC_CR(lp, cr); - } -} - -/* - * Configures the specified PHY through the MII management interface - * using Autonegotiation. - * Calls smc911x_phy_fixed() if the user has requested a certain config. - * If RPC ANEG bit is set, the media selection is dependent purely on - * the selection by the MII (either in the MII BMCR reg or the result - * of autonegotiation.) If the RPC ANEG bit is cleared, the selection - * is controlled by the RPC SPEED and RPC DPLX bits. - */ -static void smc911x_phy_configure(struct work_struct *work) -{ - struct smc911x_local *lp = container_of(work, struct smc911x_local, - phy_configure); - struct net_device *dev = lp->netdev; - int phyaddr = lp->mii.phy_id; - int my_phy_caps; /* My PHY capabilities */ - int my_ad_caps; /* My Advertised capabilities */ - int status; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__); - - /* - * We should not be called if phy_type is zero. - */ - if (lp->phy_type == 0) - return; - - if (smc911x_phy_reset(dev, phyaddr)) { - printk("%s: PHY reset timed out\n", dev->name); - return; - } - spin_lock_irqsave(&lp->lock, flags); - - /* - * Enable PHY Interrupts (for register 18) - * Interrupts listed here are enabled - */ - SMC_SET_PHY_INT_MASK(lp, phyaddr, PHY_INT_MASK_ENERGY_ON_ | - PHY_INT_MASK_ANEG_COMP_ | PHY_INT_MASK_REMOTE_FAULT_ | - PHY_INT_MASK_LINK_DOWN_); - - /* If the user requested no auto neg, then go set his request */ - if (lp->mii.force_media) { - smc911x_phy_fixed(dev); - goto smc911x_phy_configure_exit; - } - - /* Copy our capabilities from MII_BMSR to MII_ADVERTISE */ - SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps); - if (!(my_phy_caps & BMSR_ANEGCAPABLE)) { - printk(KERN_INFO "Auto negotiation NOT supported\n"); - smc911x_phy_fixed(dev); - goto smc911x_phy_configure_exit; - } - - /* CSMA capable w/ both pauses */ - my_ad_caps = ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM; - - if (my_phy_caps & BMSR_100BASE4) - my_ad_caps |= ADVERTISE_100BASE4; - if (my_phy_caps & BMSR_100FULL) - my_ad_caps |= ADVERTISE_100FULL; - if (my_phy_caps & BMSR_100HALF) - my_ad_caps |= ADVERTISE_100HALF; - if (my_phy_caps & BMSR_10FULL) - my_ad_caps |= ADVERTISE_10FULL; - if (my_phy_caps & BMSR_10HALF) - my_ad_caps |= ADVERTISE_10HALF; - - /* Disable capabilities not selected by our user */ - if (lp->ctl_rspeed != 100) - my_ad_caps &= ~(ADVERTISE_100BASE4|ADVERTISE_100FULL|ADVERTISE_100HALF); - - if (!lp->ctl_rfduplx) - my_ad_caps &= ~(ADVERTISE_100FULL|ADVERTISE_10FULL); - - /* Update our Auto-Neg Advertisement Register */ - SMC_SET_PHY_MII_ADV(lp, phyaddr, my_ad_caps); - lp->mii.advertising = my_ad_caps; - - /* - * Read the register back. Without this, it appears that when - * auto-negotiation is restarted, sometimes it isn't ready and - * the link does not come up. - */ - udelay(10); - SMC_GET_PHY_MII_ADV(lp, phyaddr, status); - - DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps); - DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps); - - /* Restart auto-negotiation process in order to advertise my caps */ - SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART); - - smc911x_phy_check_media(dev, 1); - -smc911x_phy_configure_exit: - spin_unlock_irqrestore(&lp->lock, flags); -} - -/* - * smc911x_phy_interrupt - * - * Purpose: Handle interrupts relating to PHY register 18. This is - * called from the "hard" interrupt handler under our private spinlock. - */ -static void smc911x_phy_interrupt(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int phyaddr = lp->mii.phy_id; - int status; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - if (lp->phy_type == 0) - return; - - smc911x_phy_check_media(dev, 0); - /* read to clear status bits */ - SMC_GET_PHY_INT_SRC(lp, phyaddr,status); - DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n", - dev->name, status & 0xffff); - DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n", - dev->name, SMC_GET_AFC_CFG(lp)); -} - -/*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/ - -/* - * This is the main routine of the driver, to handle the device when - * it needs some attention. - */ -static irqreturn_t smc911x_interrupt(int irq, void *dev_id) -{ - struct net_device *dev = dev_id; - struct smc911x_local *lp = netdev_priv(dev); - unsigned int status, mask, timeout; - unsigned int rx_overrun=0, cr, pkts; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - - /* Spurious interrupt check */ - if ((SMC_GET_IRQ_CFG(lp) & (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) != - (INT_CFG_IRQ_INT_ | INT_CFG_IRQ_EN_)) { - spin_unlock_irqrestore(&lp->lock, flags); - return IRQ_NONE; - } - - mask = SMC_GET_INT_EN(lp); - SMC_SET_INT_EN(lp, 0); - - /* set a timeout value, so I don't stay here forever */ - timeout = 8; - - - do { - status = SMC_GET_INT(lp); - - DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n", - dev->name, status, mask, status & ~mask); - - status &= mask; - if (!status) - break; - - /* Handle SW interrupt condition */ - if (status & INT_STS_SW_INT_) { - SMC_ACK_INT(lp, INT_STS_SW_INT_); - mask &= ~INT_EN_SW_INT_EN_; - } - /* Handle various error conditions */ - if (status & INT_STS_RXE_) { - SMC_ACK_INT(lp, INT_STS_RXE_); - dev->stats.rx_errors++; - } - if (status & INT_STS_RXDFH_INT_) { - SMC_ACK_INT(lp, INT_STS_RXDFH_INT_); - dev->stats.rx_dropped+=SMC_GET_RX_DROP(lp); - } - /* Undocumented interrupt-what is the right thing to do here? */ - if (status & INT_STS_RXDF_INT_) { - SMC_ACK_INT(lp, INT_STS_RXDF_INT_); - } - - /* Rx Data FIFO exceeds set level */ - if (status & INT_STS_RDFL_) { - if (IS_REV_A(lp->revision)) { - rx_overrun=1; - SMC_GET_MAC_CR(lp, cr); - cr &= ~MAC_CR_RXEN_; - SMC_SET_MAC_CR(lp, cr); - DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name); - dev->stats.rx_errors++; - dev->stats.rx_fifo_errors++; - } - SMC_ACK_INT(lp, INT_STS_RDFL_); - } - if (status & INT_STS_RDFO_) { - if (!IS_REV_A(lp->revision)) { - SMC_GET_MAC_CR(lp, cr); - cr &= ~MAC_CR_RXEN_; - SMC_SET_MAC_CR(lp, cr); - rx_overrun=1; - DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name); - dev->stats.rx_errors++; - dev->stats.rx_fifo_errors++; - } - SMC_ACK_INT(lp, INT_STS_RDFO_); - } - /* Handle receive condition */ - if ((status & INT_STS_RSFL_) || rx_overrun) { - unsigned int fifo; - DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name); - fifo = SMC_GET_RX_FIFO_INF(lp); - pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16; - DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n", - dev->name, pkts, fifo & 0xFFFF ); - if (pkts != 0) { -#ifdef SMC_USE_DMA - unsigned int fifo; - if (lp->rxdma_active){ - DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, - "%s: RX DMA active\n", dev->name); - /* The DMA is already running so up the IRQ threshold */ - fifo = SMC_GET_FIFO_INT(lp) & ~0xFF; - fifo |= pkts & 0xFF; - DBG(SMC_DEBUG_RX, - "%s: Setting RX stat FIFO threshold to %d\n", - dev->name, fifo & 0xff); - SMC_SET_FIFO_INT(lp, fifo); - } else -#endif - smc911x_rcv(dev); - } - SMC_ACK_INT(lp, INT_STS_RSFL_); - } - /* Handle transmit FIFO available */ - if (status & INT_STS_TDFA_) { - DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name); - SMC_SET_FIFO_TDA(lp, 0xFF); - lp->tx_throttle = 0; -#ifdef SMC_USE_DMA - if (!lp->txdma_active) -#endif - netif_wake_queue(dev); - SMC_ACK_INT(lp, INT_STS_TDFA_); - } - /* Handle transmit done condition */ -#if 1 - if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) { - DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC, - "%s: Tx stat FIFO limit (%d) /GPT irq\n", - dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16); - smc911x_tx(dev); - SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000); - SMC_ACK_INT(lp, INT_STS_TSFL_); - SMC_ACK_INT(lp, INT_STS_TSFL_ | INT_STS_GPT_INT_); - } -#else - if (status & INT_STS_TSFL_) { - DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq\n", dev->name, ); - smc911x_tx(dev); - SMC_ACK_INT(lp, INT_STS_TSFL_); - } - - if (status & INT_STS_GPT_INT_) { - DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n", - dev->name, - SMC_GET_IRQ_CFG(lp), - SMC_GET_FIFO_INT(lp), - SMC_GET_RX_CFG(lp)); - DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x " - "Data FIFO Used 0x%04x Stat FIFO 0x%08x\n", - dev->name, - (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16, - SMC_GET_RX_FIFO_INF(lp) & 0xffff, - SMC_GET_RX_STS_FIFO_PEEK(lp)); - SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000); - SMC_ACK_INT(lp, INT_STS_GPT_INT_); - } -#endif - - /* Handle PHY interrupt condition */ - if (status & INT_STS_PHY_INT_) { - DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name); - smc911x_phy_interrupt(dev); - SMC_ACK_INT(lp, INT_STS_PHY_INT_); - } - } while (--timeout); - - /* restore mask state */ - SMC_SET_INT_EN(lp, mask); - - DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n", - dev->name, 8-timeout); - - spin_unlock_irqrestore(&lp->lock, flags); - - return IRQ_HANDLED; -} - -#ifdef SMC_USE_DMA -static void -smc911x_tx_dma_irq(int dma, void *data) -{ - struct net_device *dev = (struct net_device *)data; - struct smc911x_local *lp = netdev_priv(dev); - struct sk_buff *skb = lp->current_tx_skb; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name); - /* Clear the DMA interrupt sources */ - SMC_DMA_ACK_IRQ(dev, dma); - BUG_ON(skb == NULL); - dma_unmap_single(NULL, tx_dmabuf, tx_dmalen, DMA_TO_DEVICE); - dev->trans_start = jiffies; - dev_kfree_skb_irq(skb); - lp->current_tx_skb = NULL; - if (lp->pending_tx_skb != NULL) - smc911x_hardware_send_pkt(dev); - else { - DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, - "%s: No pending Tx packets. DMA disabled\n", dev->name); - spin_lock_irqsave(&lp->lock, flags); - lp->txdma_active = 0; - if (!lp->tx_throttle) { - netif_wake_queue(dev); - } - spin_unlock_irqrestore(&lp->lock, flags); - } - - DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, - "%s: TX DMA irq completed\n", dev->name); -} -static void -smc911x_rx_dma_irq(int dma, void *data) -{ - struct net_device *dev = (struct net_device *)data; - unsigned long ioaddr = dev->base_addr; - struct smc911x_local *lp = netdev_priv(dev); - struct sk_buff *skb = lp->current_rx_skb; - unsigned long flags; - unsigned int pkts; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name); - /* Clear the DMA interrupt sources */ - SMC_DMA_ACK_IRQ(dev, dma); - dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE); - BUG_ON(skb == NULL); - lp->current_rx_skb = NULL; - PRINT_PKT(skb->data, skb->len); - skb->protocol = eth_type_trans(skb, dev); - dev->stats.rx_packets++; - dev->stats.rx_bytes += skb->len; - netif_rx(skb); - - spin_lock_irqsave(&lp->lock, flags); - pkts = (SMC_GET_RX_FIFO_INF(lp) & RX_FIFO_INF_RXSUSED_) >> 16; - if (pkts != 0) { - smc911x_rcv(dev); - }else { - lp->rxdma_active = 0; - } - spin_unlock_irqrestore(&lp->lock, flags); - DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, - "%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n", - dev->name, pkts); -} -#endif /* SMC_USE_DMA */ - -#ifdef CONFIG_NET_POLL_CONTROLLER -/* - * Polling receive - used by netconsole and other diagnostic tools - * to allow network i/o with interrupts disabled. - */ -static void smc911x_poll_controller(struct net_device *dev) -{ - disable_irq(dev->irq); - smc911x_interrupt(dev->irq, dev); - enable_irq(dev->irq); -} -#endif - -/* Our watchdog timed out. Called by the networking layer */ -static void smc911x_timeout(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int status, mask; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - status = SMC_GET_INT(lp); - mask = SMC_GET_INT_EN(lp); - spin_unlock_irqrestore(&lp->lock, flags); - DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x\n", - dev->name, status, mask); - - /* Dump the current TX FIFO contents and restart */ - mask = SMC_GET_TX_CFG(lp); - SMC_SET_TX_CFG(lp, mask | TX_CFG_TXS_DUMP_ | TX_CFG_TXD_DUMP_); - /* - * Reconfiguring the PHY doesn't seem like a bad idea here, but - * smc911x_phy_configure() calls msleep() which calls schedule_timeout() - * which calls schedule(). Hence we use a work queue. - */ - if (lp->phy_type != 0) - schedule_work(&lp->phy_configure); - - /* We can accept TX packets again */ - dev->trans_start = jiffies; /* prevent tx timeout */ - netif_wake_queue(dev); -} - -/* - * This routine will, depending on the values passed to it, - * either make it accept multicast packets, go into - * promiscuous mode (for TCPDUMP and cousins) or accept - * a select set of multicast packets - */ -static void smc911x_set_multicast_list(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int multicast_table[2]; - unsigned int mcr, update_multicast = 0; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - spin_lock_irqsave(&lp->lock, flags); - SMC_GET_MAC_CR(lp, mcr); - spin_unlock_irqrestore(&lp->lock, flags); - - if (dev->flags & IFF_PROMISC) { - - DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name); - mcr |= MAC_CR_PRMS_; - } - /* - * Here, I am setting this to accept all multicast packets. - * I don't need to zero the multicast table, because the flag is - * checked before the table is - */ - else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) { - DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name); - mcr |= MAC_CR_MCPAS_; - } - - /* - * This sets the internal hardware table to filter out unwanted - * multicast packets before they take up memory. - * - * The SMC chip uses a hash table where the high 6 bits of the CRC of - * address are the offset into the table. If that bit is 1, then the - * multicast packet is accepted. Otherwise, it's dropped silently. - * - * To use the 6 bits as an offset into the table, the high 1 bit is - * the number of the 32 bit register, while the low 5 bits are the bit - * within that register. - */ - else if (!netdev_mc_empty(dev)) { - struct netdev_hw_addr *ha; - - /* Set the Hash perfec mode */ - mcr |= MAC_CR_HPFILT_; - - /* start with a table of all zeros: reject all */ - memset(multicast_table, 0, sizeof(multicast_table)); - - netdev_for_each_mc_addr(ha, dev) { - u32 position; - - /* upper 6 bits are used as hash index */ - position = ether_crc(ETH_ALEN, ha->addr)>>26; - - multicast_table[position>>5] |= 1 << (position&0x1f); - } - - /* be sure I get rid of flags I might have set */ - mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_); - - /* now, the table can be loaded into the chipset */ - update_multicast = 1; - } else { - DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n", - dev->name); - mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_); - - /* - * since I'm disabling all multicast entirely, I need to - * clear the multicast list - */ - memset(multicast_table, 0, sizeof(multicast_table)); - update_multicast = 1; - } - - spin_lock_irqsave(&lp->lock, flags); - SMC_SET_MAC_CR(lp, mcr); - if (update_multicast) { - DBG(SMC_DEBUG_MISC, - "%s: update mcast hash table 0x%08x 0x%08x\n", - dev->name, multicast_table[0], multicast_table[1]); - SMC_SET_HASHL(lp, multicast_table[0]); - SMC_SET_HASHH(lp, multicast_table[1]); - } - spin_unlock_irqrestore(&lp->lock, flags); -} - - -/* - * Open and Initialize the board - * - * Set up everything, reset the card, etc.. - */ -static int -smc911x_open(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - /* - * Check that the address is valid. If its not, refuse - * to bring the device up. The user must specify an - * address using ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx - */ - if (!is_valid_ether_addr(dev->dev_addr)) { - PRINTK("%s: no valid ethernet hw addr\n", __func__); - return -EINVAL; - } - - /* reset the hardware */ - smc911x_reset(dev); - - /* Configure the PHY, initialize the link state */ - smc911x_phy_configure(&lp->phy_configure); - - /* Turn on Tx + Rx */ - smc911x_enable(dev); - - netif_start_queue(dev); - - return 0; -} - -/* - * smc911x_close - * - * this makes the board clean up everything that it can - * and not talk to the outside world. Caused by - * an 'ifconfig ethX down' - */ -static int smc911x_close(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - netif_stop_queue(dev); - netif_carrier_off(dev); - - /* clear everything */ - smc911x_shutdown(dev); - - if (lp->phy_type != 0) { - /* We need to ensure that no calls to - * smc911x_phy_configure are pending. - */ - cancel_work_sync(&lp->phy_configure); - smc911x_phy_powerdown(dev, lp->mii.phy_id); - } - - if (lp->pending_tx_skb) { - dev_kfree_skb(lp->pending_tx_skb); - lp->pending_tx_skb = NULL; - } - - return 0; -} - -/* - * Ethtool support - */ -static int -smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret, status; - unsigned long flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - cmd->maxtxpkt = 1; - cmd->maxrxpkt = 1; - - if (lp->phy_type != 0) { - spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_gset(&lp->mii, cmd); - spin_unlock_irqrestore(&lp->lock, flags); - } else { - cmd->supported = SUPPORTED_10baseT_Half | - SUPPORTED_10baseT_Full | - SUPPORTED_TP | SUPPORTED_AUI; - - if (lp->ctl_rspeed == 10) - ethtool_cmd_speed_set(cmd, SPEED_10); - else if (lp->ctl_rspeed == 100) - ethtool_cmd_speed_set(cmd, SPEED_100); - - cmd->autoneg = AUTONEG_DISABLE; - if (lp->mii.phy_id==1) - cmd->transceiver = XCVR_INTERNAL; - else - cmd->transceiver = XCVR_EXTERNAL; - cmd->port = 0; - SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status); - cmd->duplex = - (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ? - DUPLEX_FULL : DUPLEX_HALF; - ret = 0; - } - - return ret; -} - -static int -smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret; - unsigned long flags; - - if (lp->phy_type != 0) { - spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_sset(&lp->mii, cmd); - spin_unlock_irqrestore(&lp->lock, flags); - } else { - if (cmd->autoneg != AUTONEG_DISABLE || - cmd->speed != SPEED_10 || - (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) || - (cmd->port != PORT_TP && cmd->port != PORT_AUI)) - return -EINVAL; - - lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL; - - ret = 0; - } - - return ret; -} - -static void -smc911x_ethtool_getdrvinfo(struct net_device *dev, struct ethtool_drvinfo *info) -{ - strncpy(info->driver, CARDNAME, sizeof(info->driver)); - strncpy(info->version, version, sizeof(info->version)); - strncpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info)); -} - -static int smc911x_ethtool_nwayreset(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret = -EINVAL; - unsigned long flags; - - if (lp->phy_type != 0) { - spin_lock_irqsave(&lp->lock, flags); - ret = mii_nway_restart(&lp->mii); - spin_unlock_irqrestore(&lp->lock, flags); - } - - return ret; -} - -static u32 smc911x_ethtool_getmsglevel(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - return lp->msg_enable; -} - -static void smc911x_ethtool_setmsglevel(struct net_device *dev, u32 level) -{ - struct smc911x_local *lp = netdev_priv(dev); - lp->msg_enable = level; -} - -static int smc911x_ethtool_getregslen(struct net_device *dev) -{ - /* System regs + MAC regs + PHY regs */ - return (((E2P_CMD - ID_REV)/4 + 1) + - (WUCSR - MAC_CR)+1 + 32) * sizeof(u32); -} - -static void smc911x_ethtool_getregs(struct net_device *dev, - struct ethtool_regs* regs, void *buf) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned long flags; - u32 reg,i,j=0; - u32 *data = (u32*)buf; - - regs->version = lp->version; - for(i=ID_REV;i<=E2P_CMD;i+=4) { - data[j++] = SMC_inl(lp, i); - } - for(i=MAC_CR;i<=WUCSR;i++) { - spin_lock_irqsave(&lp->lock, flags); - SMC_GET_MAC_CSR(lp, i, reg); - spin_unlock_irqrestore(&lp->lock, flags); - data[j++] = reg; - } - for(i=0;i<=31;i++) { - spin_lock_irqsave(&lp->lock, flags); - SMC_GET_MII(lp, i, lp->mii.phy_id, reg); - spin_unlock_irqrestore(&lp->lock, flags); - data[j++] = reg & 0xFFFF; - } -} - -static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - unsigned int timeout; - int e2p_cmd; - - e2p_cmd = SMC_GET_E2P_CMD(lp); - for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) { - if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) { - PRINTK("%s: %s timeout waiting for EEPROM to respond\n", - dev->name, __func__); - return -EFAULT; - } - mdelay(1); - e2p_cmd = SMC_GET_E2P_CMD(lp); - } - if (timeout == 0) { - PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n", - dev->name, __func__); - return -ETIMEDOUT; - } - return 0; -} - -static inline int smc911x_ethtool_write_eeprom_cmd(struct net_device *dev, - int cmd, int addr) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret; - - if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0) - return ret; - SMC_SET_E2P_CMD(lp, E2P_CMD_EPC_BUSY_ | - ((cmd) & (0x7<<28)) | - ((addr) & 0xFF)); - return 0; -} - -static inline int smc911x_ethtool_read_eeprom_byte(struct net_device *dev, - u8 *data) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret; - - if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0) - return ret; - *data = SMC_GET_E2P_DATA(lp); - return 0; -} - -static inline int smc911x_ethtool_write_eeprom_byte(struct net_device *dev, - u8 data) -{ - struct smc911x_local *lp = netdev_priv(dev); - int ret; - - if ((ret = smc911x_ethtool_wait_eeprom_ready(dev))!=0) - return ret; - SMC_SET_E2P_DATA(lp, data); - return 0; -} - -static int smc911x_ethtool_geteeprom(struct net_device *dev, - struct ethtool_eeprom *eeprom, u8 *data) -{ - u8 eebuf[SMC911X_EEPROM_LEN]; - int i, ret; - - for(i=0;i<SMC911X_EEPROM_LEN;i++) { - if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_READ_, i ))!=0) - return ret; - if ((ret=smc911x_ethtool_read_eeprom_byte(dev, &eebuf[i]))!=0) - return ret; - } - memcpy(data, eebuf+eeprom->offset, eeprom->len); - return 0; -} - -static int smc911x_ethtool_seteeprom(struct net_device *dev, - struct ethtool_eeprom *eeprom, u8 *data) -{ - int i, ret; - - /* Enable erase */ - if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_EWEN_, 0 ))!=0) - return ret; - for(i=eeprom->offset;i<(eeprom->offset+eeprom->len);i++) { - /* erase byte */ - if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_ERASE_, i ))!=0) - return ret; - /* write byte */ - if ((ret=smc911x_ethtool_write_eeprom_byte(dev, *data))!=0) - return ret; - if ((ret=smc911x_ethtool_write_eeprom_cmd(dev, E2P_CMD_EPC_CMD_WRITE_, i ))!=0) - return ret; - } - return 0; -} - -static int smc911x_ethtool_geteeprom_len(struct net_device *dev) -{ - return SMC911X_EEPROM_LEN; -} - -static const struct ethtool_ops smc911x_ethtool_ops = { - .get_settings = smc911x_ethtool_getsettings, - .set_settings = smc911x_ethtool_setsettings, - .get_drvinfo = smc911x_ethtool_getdrvinfo, - .get_msglevel = smc911x_ethtool_getmsglevel, - .set_msglevel = smc911x_ethtool_setmsglevel, - .nway_reset = smc911x_ethtool_nwayreset, - .get_link = ethtool_op_get_link, - .get_regs_len = smc911x_ethtool_getregslen, - .get_regs = smc911x_ethtool_getregs, - .get_eeprom_len = smc911x_ethtool_geteeprom_len, - .get_eeprom = smc911x_ethtool_geteeprom, - .set_eeprom = smc911x_ethtool_seteeprom, -}; - -/* - * smc911x_findirq - * - * This routine has a simple purpose -- make the SMC chip generate an - * interrupt, so an auto-detect routine can detect it, and find the IRQ, - */ -static int __devinit smc911x_findirq(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int timeout = 20; - unsigned long cookie; - - DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__); - - cookie = probe_irq_on(); - - /* - * Force a SW interrupt - */ - - SMC_SET_INT_EN(lp, INT_EN_SW_INT_EN_); - - /* - * Wait until positive that the interrupt has been generated - */ - do { - int int_status; - udelay(10); - int_status = SMC_GET_INT_EN(lp); - if (int_status & INT_EN_SW_INT_EN_) - break; /* got the interrupt */ - } while (--timeout); - - /* - * there is really nothing that I can do here if timeout fails, - * as autoirq_report will return a 0 anyway, which is what I - * want in this case. Plus, the clean up is needed in both - * cases. - */ - - /* and disable all interrupts again */ - SMC_SET_INT_EN(lp, 0); - - /* and return what I found */ - return probe_irq_off(cookie); -} - -static const struct net_device_ops smc911x_netdev_ops = { - .ndo_open = smc911x_open, - .ndo_stop = smc911x_close, - .ndo_start_xmit = smc911x_hard_start_xmit, - .ndo_tx_timeout = smc911x_timeout, - .ndo_set_multicast_list = smc911x_set_multicast_list, - .ndo_change_mtu = eth_change_mtu, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_mac_address = eth_mac_addr, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = smc911x_poll_controller, -#endif -}; - -/* - * Function: smc911x_probe(unsigned long ioaddr) - * - * Purpose: - * Tests to see if a given ioaddr points to an SMC911x chip. - * Returns a 0 on success - * - * Algorithm: - * (1) see if the endian word is OK - * (1) see if I recognize the chip ID in the appropriate register - * - * Here I do typical initialization tasks. - * - * o Initialize the structure if needed - * o print out my vanity message if not done so already - * o print out what type of hardware is detected - * o print out the ethernet address - * o find the IRQ - * o set up my private data - * o configure the dev structure with my subroutines - * o actually GRAB the irq. - * o GRAB the region - */ -static int __devinit smc911x_probe(struct net_device *dev) -{ - struct smc911x_local *lp = netdev_priv(dev); - int i, retval; - unsigned int val, chip_id, revision; - const char *version_string; - unsigned long irq_flags; - - DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__); - - /* First, see if the endian word is recognized */ - val = SMC_GET_BYTE_TEST(lp); - DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val); - if (val != 0x87654321) { - printk(KERN_ERR "Invalid chip endian 0x%08x\n",val); - retval = -ENODEV; - goto err_out; - } - - /* - * check if the revision register is something that I - * recognize. These might need to be added to later, - * as future revisions could be added. - */ - chip_id = SMC_GET_PN(lp); - DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id); - for(i=0;chip_ids[i].id != 0; i++) { - if (chip_ids[i].id == chip_id) break; - } - if (!chip_ids[i].id) { - printk(KERN_ERR "Unknown chip ID %04x\n", chip_id); - retval = -ENODEV; - goto err_out; - } - version_string = chip_ids[i].name; - - revision = SMC_GET_REV(lp); - DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision); - - /* At this point I'll assume that the chip is an SMC911x. */ - DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name); - - /* Validate the TX FIFO size requested */ - if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) { - printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb); - retval = -EINVAL; - goto err_out; - } - - /* fill in some of the fields */ - lp->version = chip_ids[i].id; - lp->revision = revision; - lp->tx_fifo_kb = tx_fifo_kb; - /* Reverse calculate the RX FIFO size from the TX */ - lp->tx_fifo_size=(lp->tx_fifo_kb<<10) - 512; - lp->rx_fifo_size= ((0x4000 - 512 - lp->tx_fifo_size) / 16) * 15; - - /* Set the automatic flow control values */ - switch(lp->tx_fifo_kb) { - /* - * AFC_HI is about ((Rx Data Fifo Size)*2/3)/64 - * AFC_LO is AFC_HI/2 - * BACK_DUR is about 5uS*(AFC_LO) rounded down - */ - case 2:/* 13440 Rx Data Fifo Size */ - lp->afc_cfg=0x008C46AF;break; - case 3:/* 12480 Rx Data Fifo Size */ - lp->afc_cfg=0x0082419F;break; - case 4:/* 11520 Rx Data Fifo Size */ - lp->afc_cfg=0x00783C9F;break; - case 5:/* 10560 Rx Data Fifo Size */ - lp->afc_cfg=0x006E374F;break; - case 6:/* 9600 Rx Data Fifo Size */ - lp->afc_cfg=0x0064328F;break; - case 7:/* 8640 Rx Data Fifo Size */ - lp->afc_cfg=0x005A2D7F;break; - case 8:/* 7680 Rx Data Fifo Size */ - lp->afc_cfg=0x0050287F;break; - case 9:/* 6720 Rx Data Fifo Size */ - lp->afc_cfg=0x0046236F;break; - case 10:/* 5760 Rx Data Fifo Size */ - lp->afc_cfg=0x003C1E6F;break; - case 11:/* 4800 Rx Data Fifo Size */ - lp->afc_cfg=0x0032195F;break; - /* - * AFC_HI is ~1520 bytes less than RX Data Fifo Size - * AFC_LO is AFC_HI/2 - * BACK_DUR is about 5uS*(AFC_LO) rounded down - */ - case 12:/* 3840 Rx Data Fifo Size */ - lp->afc_cfg=0x0024124F;break; - case 13:/* 2880 Rx Data Fifo Size */ - lp->afc_cfg=0x0015073F;break; - case 14:/* 1920 Rx Data Fifo Size */ - lp->afc_cfg=0x0006032F;break; - default: - PRINTK("%s: ERROR -- no AFC_CFG setting found", - dev->name); - break; - } - - DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX, - "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME, - lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg); - - spin_lock_init(&lp->lock); - - /* Get the MAC address */ - SMC_GET_MAC_ADDR(lp, dev->dev_addr); - - /* now, reset the chip, and put it into a known state */ - smc911x_reset(dev); - - /* - * If dev->irq is 0, then the device has to be banged on to see - * what the IRQ is. - * - * Specifying an IRQ is done with the assumption that the user knows - * what (s)he is doing. No checking is done!!!! - */ - if (dev->irq < 1) { - int trials; - - trials = 3; - while (trials--) { - dev->irq = smc911x_findirq(dev); - if (dev->irq) - break; - /* kick the card and try again */ - smc911x_reset(dev); - } - } - if (dev->irq == 0) { - printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n", - dev->name); - retval = -ENODEV; - goto err_out; - } - dev->irq = irq_canonicalize(dev->irq); - - /* Fill in the fields of the device structure with ethernet values. */ - ether_setup(dev); - - dev->netdev_ops = &smc911x_netdev_ops; - dev->watchdog_timeo = msecs_to_jiffies(watchdog); - dev->ethtool_ops = &smc911x_ethtool_ops; - - INIT_WORK(&lp->phy_configure, smc911x_phy_configure); - lp->mii.phy_id_mask = 0x1f; - lp->mii.reg_num_mask = 0x1f; - lp->mii.force_media = 0; - lp->mii.full_duplex = 0; - lp->mii.dev = dev; - lp->mii.mdio_read = smc911x_phy_read; - lp->mii.mdio_write = smc911x_phy_write; - - /* - * Locate the phy, if any. - */ - smc911x_phy_detect(dev); - - /* Set default parameters */ - lp->msg_enable = NETIF_MSG_LINK; - lp->ctl_rfduplx = 1; - lp->ctl_rspeed = 100; - -#ifdef SMC_DYNAMIC_BUS_CONFIG - irq_flags = lp->cfg.irq_flags; -#else - irq_flags = IRQF_SHARED | SMC_IRQ_SENSE; -#endif - - /* Grab the IRQ */ - retval = request_irq(dev->irq, smc911x_interrupt, - irq_flags, dev->name, dev); - if (retval) - goto err_out; - -#ifdef SMC_USE_DMA - lp->rxdma = SMC_DMA_REQUEST(dev, smc911x_rx_dma_irq); - lp->txdma = SMC_DMA_REQUEST(dev, smc911x_tx_dma_irq); - lp->rxdma_active = 0; - lp->txdma_active = 0; - dev->dma = lp->rxdma; -#endif - - retval = register_netdev(dev); - if (retval == 0) { - /* now, print out the card info, in a short format.. */ - printk("%s: %s (rev %d) at %#lx IRQ %d", - dev->name, version_string, lp->revision, - dev->base_addr, dev->irq); - -#ifdef SMC_USE_DMA - if (lp->rxdma != -1) - printk(" RXDMA %d ", lp->rxdma); - - if (lp->txdma != -1) - printk("TXDMA %d", lp->txdma); -#endif - printk("\n"); - if (!is_valid_ether_addr(dev->dev_addr)) { - printk("%s: Invalid ethernet MAC address. Please " - "set using ifconfig\n", dev->name); - } else { - /* Print the Ethernet address */ - printk("%s: Ethernet addr: %pM\n", - dev->name, dev->dev_addr); - } - - if (lp->phy_type == 0) { - PRINTK("%s: No PHY found\n", dev->name); - } else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) { - PRINTK("%s: LAN911x Internal PHY\n", dev->name); - } else { - PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type); - } - } - -err_out: -#ifdef SMC_USE_DMA - if (retval) { - if (lp->rxdma != -1) { - SMC_DMA_FREE(dev, lp->rxdma); - } - if (lp->txdma != -1) { - SMC_DMA_FREE(dev, lp->txdma); - } - } -#endif - return retval; -} - -/* - * smc911x_init(void) - * - * Output: - * 0 --> there is a device - * anything else, error - */ -static int __devinit smc911x_drv_probe(struct platform_device *pdev) -{ - struct net_device *ndev; - struct resource *res; - struct smc911x_local *lp; - unsigned int *addr; - int ret; - - DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - ret = -ENODEV; - goto out; - } - - /* - * Request the regions. - */ - if (!request_mem_region(res->start, SMC911X_IO_EXTENT, CARDNAME)) { - ret = -EBUSY; - goto out; - } - - ndev = alloc_etherdev(sizeof(struct smc911x_local)); - if (!ndev) { - printk("%s: could not allocate device.\n", CARDNAME); - ret = -ENOMEM; - goto release_1; - } - SET_NETDEV_DEV(ndev, &pdev->dev); - - ndev->dma = (unsigned char)-1; - ndev->irq = platform_get_irq(pdev, 0); - lp = netdev_priv(ndev); - lp->netdev = ndev; -#ifdef SMC_DYNAMIC_BUS_CONFIG - { - struct smc911x_platdata *pd = pdev->dev.platform_data; - if (!pd) { - ret = -EINVAL; - goto release_both; - } - memcpy(&lp->cfg, pd, sizeof(lp->cfg)); - } -#endif - - addr = ioremap(res->start, SMC911X_IO_EXTENT); - if (!addr) { - ret = -ENOMEM; - goto release_both; - } - - platform_set_drvdata(pdev, ndev); - lp->base = addr; - ndev->base_addr = res->start; - ret = smc911x_probe(ndev); - if (ret != 0) { - platform_set_drvdata(pdev, NULL); - iounmap(addr); -release_both: - free_netdev(ndev); -release_1: - release_mem_region(res->start, SMC911X_IO_EXTENT); -out: - printk("%s: not found (%d).\n", CARDNAME, ret); - } -#ifdef SMC_USE_DMA - else { - lp->physaddr = res->start; - lp->dev = &pdev->dev; - } -#endif - - return ret; -} - -static int __devexit smc911x_drv_remove(struct platform_device *pdev) -{ - struct net_device *ndev = platform_get_drvdata(pdev); - struct smc911x_local *lp = netdev_priv(ndev); - struct resource *res; - - DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__); - platform_set_drvdata(pdev, NULL); - - unregister_netdev(ndev); - - free_irq(ndev->irq, ndev); - -#ifdef SMC_USE_DMA - { - if (lp->rxdma != -1) { - SMC_DMA_FREE(dev, lp->rxdma); - } - if (lp->txdma != -1) { - SMC_DMA_FREE(dev, lp->txdma); - } - } -#endif - iounmap(lp->base); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - release_mem_region(res->start, SMC911X_IO_EXTENT); - - free_netdev(ndev); - return 0; -} - -static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state) -{ - struct net_device *ndev = platform_get_drvdata(dev); - struct smc911x_local *lp = netdev_priv(ndev); - - DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__); - if (ndev) { - if (netif_running(ndev)) { - netif_device_detach(ndev); - smc911x_shutdown(ndev); -#if POWER_DOWN - /* Set D2 - Energy detect only setting */ - SMC_SET_PMT_CTRL(lp, 2<<12); -#endif - } - } - return 0; -} - -static int smc911x_drv_resume(struct platform_device *dev) -{ - struct net_device *ndev = platform_get_drvdata(dev); - - DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__); - if (ndev) { - struct smc911x_local *lp = netdev_priv(ndev); - - if (netif_running(ndev)) { - smc911x_reset(ndev); - if (lp->phy_type != 0) - smc911x_phy_configure(&lp->phy_configure); - smc911x_enable(ndev); - netif_device_attach(ndev); - } - } - return 0; -} - -static struct platform_driver smc911x_driver = { - .probe = smc911x_drv_probe, - .remove = __devexit_p(smc911x_drv_remove), - .suspend = smc911x_drv_suspend, - .resume = smc911x_drv_resume, - .driver = { - .name = CARDNAME, - .owner = THIS_MODULE, - }, -}; - -static int __init smc911x_init(void) -{ - return platform_driver_register(&smc911x_driver); -} - -static void __exit smc911x_cleanup(void) -{ - platform_driver_unregister(&smc911x_driver); -} - -module_init(smc911x_init); -module_exit(smc911x_cleanup); |