mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 18:11:30 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4019 3c298f89-4303-0410-b956-a3cf2f4a3e73
2176 lines
63 KiB
Diff
2176 lines
63 KiB
Diff
diff -Nur linux-2.6.17/drivers/net/ar2313/ar2313.c linux-2.6.17-owrt/drivers/net/ar2313/ar2313.c
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--- linux-2.6.17/drivers/net/ar2313/ar2313.c 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.17-owrt/drivers/net/ar2313/ar2313.c 2006-06-19 12:57:27.000000000 +0200
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@@ -0,0 +1,1649 @@
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+/*
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+ * ar2313.c: Linux driver for the Atheros AR2313 Ethernet device.
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+ *
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+ * Copyright 2004 by Sameer Dekate, <sdekate@arubanetworks.com>.
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+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
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+ *
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+ * Thanks to Atheros for providing hardware and documentation
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+ * enabling me to write this driver.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation; either version 2 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * Additional credits:
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+ * This code is taken from John Taylor's Sibyte driver and then
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+ * modified for the AR2313.
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+ */
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+
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+#include <linux/config.h>
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+#include <linux/module.h>
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+#include <linux/version.h>
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+#include <linux/types.h>
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+#include <linux/errno.h>
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+#include <linux/ioport.h>
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+#include <linux/pci.h>
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+#include <linux/netdevice.h>
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+#include <linux/etherdevice.h>
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+#include <linux/skbuff.h>
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+#include <linux/init.h>
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+#include <linux/delay.h>
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+#include <linux/mm.h>
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+#include <linux/highmem.h>
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+#include <linux/sockios.h>
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+#include <linux/pkt_sched.h>
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+#include <linux/compile.h>
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+#include <linux/mii.h>
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+#include <linux/ethtool.h>
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+#include <linux/ctype.h>
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+
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+#include <net/sock.h>
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+#include <net/ip.h>
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+
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+#include <asm/system.h>
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+#include <asm/io.h>
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+#include <asm/irq.h>
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+#include <asm/byteorder.h>
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+#include <asm/uaccess.h>
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+#include <asm/bootinfo.h>
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+
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+extern char *getenv(char *e);
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+
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+
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+#undef INDEX_DEBUG
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+#define DEBUG 0
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+#define DEBUG_TX 0
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+#define DEBUG_RX 0
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+#define DEBUG_INT 0
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+#define DEBUG_MC 0
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+#define DEBUG_ERR 1
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+
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+#ifndef __exit
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+#define __exit
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+#endif
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+
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+#ifndef min
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+#define min(a,b) (((a)<(b))?(a):(b))
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+#endif
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+
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+#ifndef SMP_CACHE_BYTES
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+#define SMP_CACHE_BYTES L1_CACHE_BYTES
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+#endif
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+
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+#ifndef SET_MODULE_OWNER
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+#define SET_MODULE_OWNER(dev) {do{} while(0);}
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+#define AR2313_MOD_INC_USE_COUNT MOD_INC_USE_COUNT
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+#define AR2313_MOD_DEC_USE_COUNT MOD_DEC_USE_COUNT
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+#else
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+#define AR2313_MOD_INC_USE_COUNT {do{} while(0);}
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+#define AR2313_MOD_DEC_USE_COUNT {do{} while(0);}
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+#endif
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+
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+#define PHYSADDR(a) ((_ACAST32_ (a)) & 0x1fffffff)
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+
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+static char ethaddr[18] = "00:00:00:00:00:00";
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+static char ifname[5] = "bond";
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+
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+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,52)
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+module_param_string(ethaddr, ethaddr, 18, 0);
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+module_param_string(ifname, ifname, 5, 0);
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+#else
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+MODULE_PARM(ethaddr, "c18");
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+MODULE_PARM(ifname, "c5");
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+#endif
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+
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+#define AR2313_MBOX_SET_BIT 0x8
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+
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+#define BOARD_IDX_STATIC 0
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+#define BOARD_IDX_OVERFLOW -1
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+
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+/* margot includes */
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+#include <asm/idt-boards/rc32434/rc32434.h>
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+
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+#include "ar2313_msg.h"
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+#include "platform.h"
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+#include "dma.h"
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+#include "ar2313.h"
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+
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+/*
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+ * New interrupt handler strategy:
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+ *
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+ * An old interrupt handler worked using the traditional method of
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+ * replacing an skbuff with a new one when a packet arrives. However
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+ * the rx rings do not need to contain a static number of buffer
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+ * descriptors, thus it makes sense to move the memory allocation out
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+ * of the main interrupt handler and do it in a bottom half handler
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+ * and only allocate new buffers when the number of buffers in the
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+ * ring is below a certain threshold. In order to avoid starving the
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+ * NIC under heavy load it is however necessary to force allocation
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+ * when hitting a minimum threshold. The strategy for alloction is as
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+ * follows:
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+ *
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+ * RX_LOW_BUF_THRES - allocate buffers in the bottom half
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+ * RX_PANIC_LOW_THRES - we are very low on buffers, allocate
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+ * the buffers in the interrupt handler
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+ * RX_RING_THRES - maximum number of buffers in the rx ring
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+ *
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+ * One advantagous side effect of this allocation approach is that the
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+ * entire rx processing can be done without holding any spin lock
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+ * since the rx rings and registers are totally independent of the tx
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+ * ring and its registers. This of course includes the kmalloc's of
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+ * new skb's. Thus start_xmit can run in parallel with rx processing
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+ * and the memory allocation on SMP systems.
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+ *
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+ * Note that running the skb reallocation in a bottom half opens up
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+ * another can of races which needs to be handled properly. In
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+ * particular it can happen that the interrupt handler tries to run
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+ * the reallocation while the bottom half is either running on another
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+ * CPU or was interrupted on the same CPU. To get around this the
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+ * driver uses bitops to prevent the reallocation routines from being
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+ * reentered.
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+ *
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+ * TX handling can also be done without holding any spin lock, wheee
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+ * this is fun! since tx_csm is only written to by the interrupt
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+ * handler.
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+ */
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+
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+/*
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+ * Threshold values for RX buffer allocation - the low water marks for
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+ * when to start refilling the rings are set to 75% of the ring
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+ * sizes. It seems to make sense to refill the rings entirely from the
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+ * intrrupt handler once it gets below the panic threshold, that way
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+ * we don't risk that the refilling is moved to another CPU when the
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+ * one running the interrupt handler just got the slab code hot in its
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+ * cache.
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+ */
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+#define RX_RING_SIZE AR2313_DESCR_ENTRIES
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+#define RX_PANIC_THRES (RX_RING_SIZE/4)
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+#define RX_LOW_THRES ((3*RX_RING_SIZE)/4)
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+#define CRC_LEN 4
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+#define RX_OFFSET 2
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+
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+#define AR2313_BUFSIZE (AR2313_MTU + ETH_HLEN + CRC_LEN + RX_OFFSET)
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+
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+#ifdef MODULE
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+MODULE_AUTHOR("Sameer Dekate<sdekate@arubanetworks.com>");
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+MODULE_DESCRIPTION("AR2313 Ethernet driver");
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+#endif
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+
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+#if DEBUG
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+static char version[] __initdata =
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+ "ar2313.c: v0.02 2006/06/19 sdekate@arubanetworks.com\n";
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+#endif /* DEBUG */
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+
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+#define virt_to_phys(x) ((u32)(x) & 0x1fffffff)
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+
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+// prototypes
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+static short armiiread(short phy, short reg);
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+static void armiiwrite(short phy, short reg, short data);
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+#ifdef TX_TIMEOUT
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+static void ar2313_tx_timeout(struct net_device *dev);
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+#endif
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+static void ar2313_halt(struct net_device *dev);
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+static void rx_tasklet_func(unsigned long data);
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+static void ar2313_multicast_list(struct net_device *dev);
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+
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+static struct net_device *root_dev;
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+static int probed __initdata = 0;
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+static unsigned long ar_eth_base;
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+static unsigned long ar_dma_base;
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+static unsigned long ar_int_base;
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+static unsigned long ar_int_mac_mask;
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+static unsigned long ar_int_phy_mask;
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+
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+#ifndef ERR
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+#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
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+#endif
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+
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+static int parse_mac_addr(struct net_device *dev, char* macstr){
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+ int i, j;
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+ unsigned char result, value;
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+
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+ for (i=0; i<6; i++) {
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+ result = 0;
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+ if (i != 5 && *(macstr+2) != ':') {
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+ ERR("invalid mac address format: %d %c\n",
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+ i, *(macstr+2));
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+ return -EINVAL;
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+ }
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+ for (j=0; j<2; j++) {
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+ if (isxdigit(*macstr) && (value = isdigit(*macstr) ? *macstr-'0' :
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+ toupper(*macstr)-'A'+10) < 16)
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+ {
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+ result = result*16 + value;
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+ macstr++;
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+ }
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+ else {
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+ ERR("invalid mac address "
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+ "character: %c\n", *macstr);
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+ return -EINVAL;
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+ }
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+ }
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+
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+ macstr++;
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+ dev->dev_addr[i] = result;
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+ }
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+
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+ return 0;
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+}
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+
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+
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+int __init ar2313_probe(void)
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+{
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+ struct net_device *dev;
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+ struct ar2313_private *sp;
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+ int version_disp;
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+ char name[64] ;
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+
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+ if (probed)
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+ return -ENODEV;
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+ probed++;
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+
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+ version_disp = 0;
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+ sprintf(name, "%s%%d", ifname) ;
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+ dev = alloc_etherdev(sizeof(struct ar2313_private));
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+
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+ if (dev == NULL) {
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+ printk(KERN_ERR "ar2313: Unable to allocate net_device structure!\n");
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+ return -ENOMEM;
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+ }
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+
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+ SET_MODULE_OWNER(dev);
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+
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+ sp = dev->priv;
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+
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+ sp->link = 0;
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+ switch (mips_machtype) {
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+ case MACH_ARUBA_AP60:
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+ ar_eth_base = 0xb8100000;
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+ ar_dma_base = ar_eth_base + 0x1000;
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+ ar_int_base = 0x1C003020;
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+ ar_int_mac_mask = RESET_ENET0|RESET_ENET1;
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+ ar_int_phy_mask = RESET_EPHY0|RESET_EPHY1;
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+ sp->mac = 1;
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+ sp->phy = 1;
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+ dev->irq = 4;
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+ break;
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+
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+ case MACH_ARUBA_AP40:
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+ ar_eth_base = 0xb0500000;
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+ ar_dma_base = ar_eth_base + 0x1000;
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+ ar_int_base = 0x11000004;
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+ ar_int_mac_mask = 0x800;
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+ ar_int_phy_mask = 0x400;
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+ sp->mac = 0;
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+ sp->phy = 1;
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+ dev->irq = 4;
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+ break;
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+
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+ case MACH_ARUBA_AP65:
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+ ar_eth_base = 0xb8100000;
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+ ar_dma_base = ar_eth_base + 0x1000;
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+ ar_int_base = 0x1C003020;
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+ ar_int_mac_mask = RESET_ENET0|RESET_ENET1;
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+ ar_int_phy_mask = RESET_EPHY0|RESET_EPHY1;
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+ sp->mac = 0;
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+#if 0
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+ // commented out, for now
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+
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+ if (mips_machtype == MACH_ARUBA_SAMSUNG) {
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+ sp->phy = 0x1f;
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+ } else {
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+ sp->phy = 1;
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+ }
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+#else
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+ sp->phy = 1;
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+#endif
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+ dev->irq = 3;
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+ break;
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+
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+ default:
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+ printk("%s: unsupported mips_machtype=0x%lx\n",
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+ __FUNCTION__, mips_machtype) ;
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+ return -ENODEV;
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+ }
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+
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+ spin_lock_init(&sp->lock);
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+
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+ /* initialize func pointers */
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+ dev->open = &ar2313_open;
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+ dev->stop = &ar2313_close;
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+ dev->hard_start_xmit = &ar2313_start_xmit;
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+
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+ dev->get_stats = &ar2313_get_stats;
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+ dev->set_multicast_list = &ar2313_multicast_list;
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+#ifdef TX_TIMEOUT
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+ dev->tx_timeout = ar2313_tx_timeout;
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+ dev->watchdog_timeo = AR2313_TX_TIMEOUT;
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+#endif
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+ dev->do_ioctl = &ar2313_ioctl;
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+
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+ // SAMEER: do we need this?
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+ dev->features |= NETIF_F_SG | NETIF_F_HIGHDMA;
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+
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+ tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev);
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+ tasklet_disable(&sp->rx_tasklet);
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+
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+ /* display version info if adapter is found */
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+ if (!version_disp) {
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+ /* set display flag to TRUE so that */
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+ /* we only display this string ONCE */
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+ version_disp = 1;
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+#if DEBUG
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+ printk(version);
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+#endif /* DEBUG */
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+ }
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+
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+ request_region(PHYSADDR(ETHERNET_BASE), ETHERNET_SIZE*ETHERNET_MACS,
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+ "AR2313ENET");
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+
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+ sp->eth_regs = ioremap_nocache(PHYSADDR(ETHERNET_BASE + ETHERNET_SIZE*sp->mac),
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+ sizeof(*sp->eth_regs));
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+ if (!sp->eth_regs) {
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+ printk("Can't remap eth registers\n");
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+ return(-ENXIO);
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+ }
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+
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+ sp->dma_regs = ioremap_nocache(PHYSADDR(DMA_BASE + DMA_SIZE*sp->mac),
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+ sizeof(*sp->dma_regs));
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+ dev->base_addr = (unsigned int) sp->dma_regs;
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+ if (!sp->dma_regs) {
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+ printk("Can't remap DMA registers\n");
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+ return(-ENXIO);
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+ }
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+
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+ sp->int_regs = ioremap_nocache(PHYSADDR(INTERRUPT_BASE),
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+ sizeof(*sp->int_regs));
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+ if (!sp->int_regs) {
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+ printk("Can't remap INTERRUPT registers\n");
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+ return(-ENXIO);
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+ }
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+
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+ strncpy(sp->name, "Atheros AR2313", sizeof (sp->name) - 1);
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+ sp->name [sizeof (sp->name) - 1] = '\0';
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+
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+ {
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+ char mac[32];
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+ extern char *getenv(char *e);
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+ unsigned char def_mac[6] = {0, 0x0b, 0x86, 0xba, 0xdb, 0xad};
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+ memset(mac, 0, 32);
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+ memcpy(mac, getenv("ethaddr"), 17);
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+ if (parse_mac_addr(dev, mac)){
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+ printk("%s: MAC address not found, using default\n", __func__);
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+ memcpy(dev->dev_addr, def_mac, 6);
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+ }
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+ }
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+
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+ sp->board_idx = BOARD_IDX_STATIC;
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+
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+ if (ar2313_init(dev)) {
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+ /*
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+ * ar2313_init() calls ar2313_init_cleanup() on error.
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+ */
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+ kfree(dev);
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+ return -ENODEV;
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+ }
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+
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+ if (register_netdev(dev)){
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+ printk("%s: register_netdev failed\n", __func__);
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+ return -1;
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+ }
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+
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+ printk("%s: %s: %02x:%02x:%02x:%02x:%02x:%02x, irq %d\n",
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+ dev->name, sp->name,
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+ dev->dev_addr[0], dev->dev_addr[1], dev->dev_addr[2],
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+ dev->dev_addr[3], dev->dev_addr[4], dev->dev_addr[5],
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+ dev->irq);
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+
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+ /* start link poll timer */
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+ ar2313_setup_timer(dev);
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+
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+ /*
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+ * Register the device
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+ */
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+ root_dev = dev;
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+
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+ return 0;
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+}
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+
|
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+#if 0
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+static void ar2313_dump_regs(struct net_device *dev)
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+{
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+ unsigned int *ptr, i;
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+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
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+
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+ ptr = (unsigned int *)sp->eth_regs;
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+ for(i=0; i< (sizeof(ETHERNET_STRUCT)/ sizeof(unsigned int)); i++, ptr++) {
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+ printk("ENET: %08x = %08x\n", (int)ptr, *ptr);
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+ }
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+
|
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+ ptr = (unsigned int *)sp->dma_regs;
|
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+ for(i=0; i< (sizeof(DMA)/ sizeof(unsigned int)); i++, ptr++) {
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+ printk("DMA: %08x = %08x\n", (int)ptr, *ptr);
|
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+ }
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+
|
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+ ptr = (unsigned int *)sp->int_regs;
|
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+ for(i=0; i< (sizeof(INTERRUPT)/ sizeof(unsigned int)); i++, ptr++){
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+ printk("INT: %08x = %08x\n", (int)ptr, *ptr);
|
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+ }
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+
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+ for (i = 0; i < AR2313_DESCR_ENTRIES; i++) {
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+ ar2313_descr_t *td = &sp->tx_ring[i];
|
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+ printk("Tx desc %2d: %08x %08x %08x %08x\n", i,
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+ td->status, td->devcs, td->addr, td->descr);
|
|
+ }
|
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+}
|
|
+#endif
|
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+
|
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+#ifdef TX_TIMEOUT
|
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+static void
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+ar2313_tx_timeout(struct net_device *dev)
|
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+{
|
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+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
|
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+ unsigned long flags;
|
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+
|
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+#if DEBUG_TX
|
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+ printk("Tx timeout\n");
|
|
+#endif
|
|
+ spin_lock_irqsave(&sp->lock, flags);
|
|
+ ar2313_restart(dev);
|
|
+ spin_unlock_irqrestore(&sp->lock, flags);
|
|
+}
|
|
+#endif
|
|
+
|
|
+#if DEBUG_MC
|
|
+static void
|
|
+printMcList(struct net_device *dev)
|
|
+{
|
|
+ struct dev_mc_list *list = dev->mc_list;
|
|
+ int num=0, i;
|
|
+ while(list){
|
|
+ printk("%d MC ADDR ", num);
|
|
+ for(i=0;i<list->dmi_addrlen;i++) {
|
|
+ printk(":%02x", list->dmi_addr[i]);
|
|
+ }
|
|
+ list = list->next;
|
|
+ printk("\n");
|
|
+ }
|
|
+}
|
|
+#endif
|
|
+
|
|
+/*
|
|
+ * Set or clear the multicast filter for this adaptor.
|
|
+ * THIS IS ABSOLUTE CRAP, disabled
|
|
+ */
|
|
+static void
|
|
+ar2313_multicast_list(struct net_device *dev)
|
|
+{
|
|
+ /*
|
|
+ * Always listen to broadcasts and
|
|
+ * treat IFF bits independently
|
|
+ */
|
|
+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
|
|
+ unsigned int recognise;
|
|
+
|
|
+ recognise = sp->eth_regs->mac_control;
|
|
+
|
|
+ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
|
|
+ recognise |= MAC_CONTROL_PR;
|
|
+ } else {
|
|
+ recognise &= ~MAC_CONTROL_PR;
|
|
+ }
|
|
+
|
|
+ if ((dev->flags & IFF_ALLMULTI) || (dev->mc_count > 15)) {
|
|
+#if DEBUG_MC
|
|
+ printMcList(dev);
|
|
+ printk("%s: all MULTICAST mc_count %d\n", __FUNCTION__, dev->mc_count);
|
|
+#endif
|
|
+ recognise |= MAC_CONTROL_PM;/* all multicast */
|
|
+ } else if (dev->mc_count > 0) {
|
|
+#if DEBUG_MC
|
|
+ printMcList(dev);
|
|
+ printk("%s: mc_count %d\n", __FUNCTION__, dev->mc_count);
|
|
+#endif
|
|
+ recognise |= MAC_CONTROL_PM; /* for the time being */
|
|
+ }
|
|
+#if DEBUG_MC
|
|
+ printk("%s: setting %08x to %08x\n", __FUNCTION__, (int)sp->eth_regs, recognise);
|
|
+#endif
|
|
+
|
|
+ sp->eth_regs->mac_control = recognise;
|
|
+}
|
|
+
|
|
+static void rx_tasklet_cleanup(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+
|
|
+ /*
|
|
+ * Tasklet may be scheduled. Need to get it removed from the list
|
|
+ * since we're about to free the struct.
|
|
+ */
|
|
+
|
|
+ sp->unloading = 1;
|
|
+ tasklet_enable(&sp->rx_tasklet);
|
|
+ tasklet_kill(&sp->rx_tasklet);
|
|
+}
|
|
+
|
|
+static void __exit ar2313_module_cleanup(void)
|
|
+{
|
|
+ rx_tasklet_cleanup(root_dev);
|
|
+ ar2313_init_cleanup(root_dev);
|
|
+ unregister_netdev(root_dev);
|
|
+ kfree(root_dev);
|
|
+ release_region(PHYSADDR(ETHERNET_BASE), ETHERNET_SIZE*ETHERNET_MACS);
|
|
+}
|
|
+
|
|
+
|
|
+/*
|
|
+ * Restart the AR2313 ethernet controller.
|
|
+ */
|
|
+static int ar2313_restart(struct net_device *dev)
|
|
+{
|
|
+ /* disable interrupts */
|
|
+ disable_irq(dev->irq);
|
|
+
|
|
+ /* stop mac */
|
|
+ ar2313_halt(dev);
|
|
+
|
|
+ /* initialize */
|
|
+ ar2313_init(dev);
|
|
+
|
|
+ /* enable interrupts */
|
|
+ enable_irq(dev->irq);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+extern unsigned long mips_machtype;
|
|
+
|
|
+int __init ar2313_module_init(void)
|
|
+{
|
|
+ int status=-1;
|
|
+ switch (mips_machtype){
|
|
+ case MACH_ARUBA_AP60:
|
|
+ case MACH_ARUBA_AP65:
|
|
+ case MACH_ARUBA_AP40:
|
|
+ root_dev = NULL;
|
|
+ status = ar2313_probe();
|
|
+ break;
|
|
+ }
|
|
+ return status;
|
|
+}
|
|
+
|
|
+
|
|
+module_init(ar2313_module_init);
|
|
+module_exit(ar2313_module_cleanup);
|
|
+
|
|
+
|
|
+static void ar2313_free_descriptors(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ if (sp->rx_ring != NULL) {
|
|
+ kfree((void*)KSEG0ADDR(sp->rx_ring));
|
|
+ sp->rx_ring = NULL;
|
|
+ sp->tx_ring = NULL;
|
|
+ }
|
|
+}
|
|
+
|
|
+
|
|
+static int ar2313_allocate_descriptors(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ int size;
|
|
+ int j;
|
|
+ ar2313_descr_t *space;
|
|
+
|
|
+ if(sp->rx_ring != NULL){
|
|
+ printk("%s: already done.\n", __FUNCTION__);
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
+ size = (sizeof(ar2313_descr_t) * (AR2313_DESCR_ENTRIES * AR2313_QUEUES));
|
|
+ space = kmalloc(size, GFP_KERNEL);
|
|
+ if (space == NULL)
|
|
+ return 1;
|
|
+
|
|
+ /* invalidate caches */
|
|
+ dma_cache_inv((unsigned int)space, size);
|
|
+
|
|
+ /* now convert pointer to KSEG1 */
|
|
+ space = (ar2313_descr_t *)KSEG1ADDR(space);
|
|
+
|
|
+ memset((void *)space, 0, size);
|
|
+
|
|
+ sp->rx_ring = space;
|
|
+ space += AR2313_DESCR_ENTRIES;
|
|
+
|
|
+ sp->tx_ring = space;
|
|
+ space += AR2313_DESCR_ENTRIES;
|
|
+
|
|
+ /* Initialize the transmit Descriptors */
|
|
+ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
|
|
+ ar2313_descr_t *td = &sp->tx_ring[j];
|
|
+ td->status = 0;
|
|
+ td->devcs = DMA_TX1_CHAINED;
|
|
+ td->addr = 0;
|
|
+ td->descr = K1_TO_PHYS(&sp->tx_ring[(j+1) & (AR2313_DESCR_ENTRIES-1)]);
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
+/*
|
|
+ * Generic cleanup handling data allocated during init. Used when the
|
|
+ * module is unloaded or if an error occurs during initialization
|
|
+ */
|
|
+static void ar2313_init_cleanup(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ struct sk_buff *skb;
|
|
+ int j;
|
|
+
|
|
+ ar2313_free_descriptors(dev);
|
|
+
|
|
+ if (sp->eth_regs) iounmap((void*)sp->eth_regs);
|
|
+ if (sp->dma_regs) iounmap((void*)sp->dma_regs);
|
|
+
|
|
+ if (sp->rx_skb) {
|
|
+ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
|
|
+ skb = sp->rx_skb[j];
|
|
+ if (skb) {
|
|
+ sp->rx_skb[j] = NULL;
|
|
+ dev_kfree_skb(skb);
|
|
+ }
|
|
+ }
|
|
+ kfree(sp->rx_skb);
|
|
+ sp->rx_skb = NULL;
|
|
+ }
|
|
+
|
|
+ if (sp->tx_skb) {
|
|
+ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
|
|
+ skb = sp->tx_skb[j];
|
|
+ if (skb) {
|
|
+ sp->tx_skb[j] = NULL;
|
|
+ dev_kfree_skb(skb);
|
|
+ }
|
|
+ }
|
|
+ kfree(sp->tx_skb);
|
|
+ sp->tx_skb = NULL;
|
|
+ }
|
|
+}
|
|
+
|
|
+static int ar2313_setup_timer(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+
|
|
+ init_timer(&sp->link_timer);
|
|
+
|
|
+ sp->link_timer.function = ar2313_link_timer_fn;
|
|
+ sp->link_timer.data = (int) dev;
|
|
+ sp->link_timer.expires = jiffies + HZ;
|
|
+
|
|
+ add_timer(&sp->link_timer);
|
|
+ return 0;
|
|
+
|
|
+}
|
|
+
|
|
+static void ar2313_link_timer_fn(unsigned long data)
|
|
+{
|
|
+ struct net_device *dev = (struct net_device *) data;
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+
|
|
+ // see if the link status changed
|
|
+ // This was needed to make sure we set the PHY to the
|
|
+ // autonegotiated value of half or full duplex.
|
|
+ ar2313_check_link(dev);
|
|
+
|
|
+ // Loop faster when we don't have link.
|
|
+ // This was needed to speed up the AP bootstrap time.
|
|
+ if(sp->link == 0) {
|
|
+ mod_timer(&sp->link_timer, jiffies + HZ/2);
|
|
+ } else {
|
|
+ mod_timer(&sp->link_timer, jiffies + LINK_TIMER);
|
|
+ }
|
|
+}
|
|
+
|
|
+static void ar2313_check_link(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ u16 phyData;
|
|
+
|
|
+ phyData = armiiread(sp->phy, MII_BMSR);
|
|
+ if (sp->phyData != phyData) {
|
|
+ if (phyData & BMSR_LSTATUS) {
|
|
+ /* link is present, ready link partner ability to deterine duplexity */
|
|
+ int duplex = 0;
|
|
+ u16 reg;
|
|
+
|
|
+ sp->link = 1;
|
|
+ reg = armiiread(sp->phy, MII_BMCR);
|
|
+ if (reg & BMCR_ANENABLE) {
|
|
+ /* auto neg enabled */
|
|
+ reg = armiiread(sp->phy, MII_LPA);
|
|
+ duplex = (reg & (LPA_100FULL|LPA_10FULL))? 1:0;
|
|
+ } else {
|
|
+ /* no auto neg, just read duplex config */
|
|
+ duplex = (reg & BMCR_FULLDPLX)? 1:0;
|
|
+ }
|
|
+
|
|
+ printk(KERN_INFO "%s: Configuring MAC for %s duplex\n", dev->name,
|
|
+ (duplex)? "full":"half");
|
|
+
|
|
+ if (duplex) {
|
|
+ /* full duplex */
|
|
+ sp->eth_regs->mac_control = ((sp->eth_regs->mac_control | MAC_CONTROL_F) &
|
|
+ ~MAC_CONTROL_DRO);
|
|
+ } else {
|
|
+ /* half duplex */
|
|
+ sp->eth_regs->mac_control = ((sp->eth_regs->mac_control | MAC_CONTROL_DRO) &
|
|
+ ~MAC_CONTROL_F);
|
|
+ }
|
|
+ } else {
|
|
+ /* no link */
|
|
+ sp->link = 0;
|
|
+ }
|
|
+ sp->phyData = phyData;
|
|
+ }
|
|
+}
|
|
+
|
|
+static int
|
|
+ar2313_reset_reg(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
|
|
+ unsigned int ethsal, ethsah;
|
|
+ unsigned int flags;
|
|
+
|
|
+ *sp->int_regs |= ar_int_mac_mask;
|
|
+ mdelay(10);
|
|
+ *sp->int_regs &= ~ar_int_mac_mask;
|
|
+ mdelay(10);
|
|
+ *sp->int_regs |= ar_int_phy_mask;
|
|
+ mdelay(10);
|
|
+ *sp->int_regs &= ~ar_int_phy_mask;
|
|
+ mdelay(10);
|
|
+
|
|
+ sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR);
|
|
+ mdelay(10);
|
|
+ sp->dma_regs->bus_mode = ((32 << DMA_BUS_MODE_PBL_SHIFT) | DMA_BUS_MODE_BLE);
|
|
+
|
|
+ /* enable interrupts */
|
|
+ sp->dma_regs->intr_ena = (DMA_STATUS_AIS |
|
|
+ DMA_STATUS_NIS |
|
|
+ DMA_STATUS_RI |
|
|
+ DMA_STATUS_TI |
|
|
+ DMA_STATUS_FBE);
|
|
+ sp->dma_regs->xmt_base = K1_TO_PHYS(sp->tx_ring);
|
|
+ sp->dma_regs->rcv_base = K1_TO_PHYS(sp->rx_ring);
|
|
+ sp->dma_regs->control = (DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF);
|
|
+
|
|
+ sp->eth_regs->flow_control = (FLOW_CONTROL_FCE);
|
|
+ sp->eth_regs->vlan_tag = (0x8100);
|
|
+
|
|
+ /* Enable Ethernet Interface */
|
|
+ flags = (MAC_CONTROL_TE | /* transmit enable */
|
|
+ MAC_CONTROL_PM | /* pass mcast */
|
|
+ MAC_CONTROL_F | /* full duplex */
|
|
+ MAC_CONTROL_HBD); /* heart beat disabled */
|
|
+
|
|
+ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
|
|
+ flags |= MAC_CONTROL_PR;
|
|
+ }
|
|
+ sp->eth_regs->mac_control = flags;
|
|
+
|
|
+ /* Set all Ethernet station address registers to their initial values */
|
|
+ ethsah = ((((u_int)(dev->dev_addr[5]) << 8) & (u_int)0x0000FF00) |
|
|
+ (((u_int)(dev->dev_addr[4]) << 0) & (u_int)0x000000FF));
|
|
+
|
|
+ ethsal = ((((u_int)(dev->dev_addr[3]) << 24) & (u_int)0xFF000000) |
|
|
+ (((u_int)(dev->dev_addr[2]) << 16) & (u_int)0x00FF0000) |
|
|
+ (((u_int)(dev->dev_addr[1]) << 8) & (u_int)0x0000FF00) |
|
|
+ (((u_int)(dev->dev_addr[0]) << 0) & (u_int)0x000000FF) );
|
|
+
|
|
+ sp->eth_regs->mac_addr[0] = ethsah;
|
|
+ sp->eth_regs->mac_addr[1] = ethsal;
|
|
+
|
|
+ mdelay(10);
|
|
+
|
|
+ return(0);
|
|
+}
|
|
+
|
|
+
|
|
+static int ar2313_init(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ int ecode=0;
|
|
+
|
|
+ /*
|
|
+ * Allocate descriptors
|
|
+ */
|
|
+ if (ar2313_allocate_descriptors(dev)) {
|
|
+ printk("%s: %s: ar2313_allocate_descriptors failed\n",
|
|
+ dev->name, __FUNCTION__);
|
|
+ ecode = -EAGAIN;
|
|
+ goto init_error;
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * Get the memory for the skb rings.
|
|
+ */
|
|
+ if(sp->rx_skb == NULL) {
|
|
+ sp->rx_skb = kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, GFP_KERNEL);
|
|
+ if (!(sp->rx_skb)) {
|
|
+ printk("%s: %s: rx_skb kmalloc failed\n",
|
|
+ dev->name, __FUNCTION__);
|
|
+ ecode = -EAGAIN;
|
|
+ goto init_error;
|
|
+ }
|
|
+ }
|
|
+ memset(sp->rx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
|
|
+
|
|
+ if(sp->tx_skb == NULL) {
|
|
+ sp->tx_skb = kmalloc(sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES, GFP_KERNEL);
|
|
+ if (!(sp->tx_skb)) {
|
|
+ printk("%s: %s: tx_skb kmalloc failed\n",
|
|
+ dev->name, __FUNCTION__);
|
|
+ ecode = -EAGAIN;
|
|
+ goto init_error;
|
|
+ }
|
|
+ }
|
|
+ memset(sp->tx_skb, 0, sizeof(struct sk_buff *) * AR2313_DESCR_ENTRIES);
|
|
+
|
|
+ /*
|
|
+ * Set tx_csm before we start receiving interrupts, otherwise
|
|
+ * the interrupt handler might think it is supposed to process
|
|
+ * tx ints before we are up and running, which may cause a null
|
|
+ * pointer access in the int handler.
|
|
+ */
|
|
+ sp->rx_skbprd = 0;
|
|
+ sp->cur_rx = 0;
|
|
+ sp->tx_prd = 0;
|
|
+ sp->tx_csm = 0;
|
|
+
|
|
+ /*
|
|
+ * Zero the stats before starting the interface
|
|
+ */
|
|
+ memset(&sp->stats, 0, sizeof(sp->stats));
|
|
+
|
|
+ /*
|
|
+ * We load the ring here as there seem to be no way to tell the
|
|
+ * firmware to wipe the ring without re-initializing it.
|
|
+ */
|
|
+ ar2313_load_rx_ring(dev, RX_RING_SIZE);
|
|
+
|
|
+ /*
|
|
+ * Init hardware
|
|
+ */
|
|
+ ar2313_reset_reg(dev);
|
|
+
|
|
+ /*
|
|
+ * Get the IRQ
|
|
+ */
|
|
+ ecode = request_irq(dev->irq, &ar2313_interrupt, SA_SHIRQ | SA_INTERRUPT, dev->name, dev);
|
|
+ if (ecode) {
|
|
+ printk(KERN_WARNING "%s: %s: Requested IRQ %d is busy\n",
|
|
+ dev->name, __FUNCTION__, dev->irq);
|
|
+ goto init_error;
|
|
+ }
|
|
+
|
|
+#if 0
|
|
+ // commented out, for now
|
|
+
|
|
+ if(mips_machtype == MACH_ARUBA_SAMSUNG) {
|
|
+ int i;
|
|
+ /* configure Marvell 88E6060 */
|
|
+ /* reset chip */
|
|
+ armiiwrite(0x1f, 0xa, 0xa130);
|
|
+ do {
|
|
+ udelay(1000);
|
|
+ i = armiiread(sp->phy, 0xa);
|
|
+ } while (i & 0x8000);
|
|
+
|
|
+ /* configure MAC address */
|
|
+ armiiwrite(sp->phy, 0x1, dev->dev_addr[0] << 8 | dev->dev_addr[1]);
|
|
+ armiiwrite(sp->phy, 0x2, dev->dev_addr[2] << 8 | dev->dev_addr[3]);
|
|
+ armiiwrite(sp->phy, 0x3, dev->dev_addr[4] << 8 | dev->dev_addr[5]);
|
|
+
|
|
+ /* set ports to forwarding */
|
|
+ armiiwrite(0x18, 0x4, 0x3);
|
|
+ armiiwrite(0x1c, 0x4, 0x3);
|
|
+ armiiwrite(0x1d, 0x4, 0x3);
|
|
+ }
|
|
+#endif
|
|
+
|
|
+ tasklet_enable(&sp->rx_tasklet);
|
|
+
|
|
+ return 0;
|
|
+
|
|
+ init_error:
|
|
+ ar2313_init_cleanup(dev);
|
|
+ return ecode;
|
|
+}
|
|
+
|
|
+/*
|
|
+ * Load the rx ring.
|
|
+ *
|
|
+ * Loading rings is safe without holding the spin lock since this is
|
|
+ * done only before the device is enabled, thus no interrupts are
|
|
+ * generated and by the interrupt handler/tasklet handler.
|
|
+ */
|
|
+static void ar2313_load_rx_ring(struct net_device *dev, int nr_bufs)
|
|
+{
|
|
+
|
|
+ struct ar2313_private *sp = ((struct net_device *)dev)->priv;
|
|
+ short i, idx;
|
|
+
|
|
+ idx = sp->rx_skbprd;
|
|
+
|
|
+ for (i = 0; i < nr_bufs; i++) {
|
|
+ struct sk_buff *skb;
|
|
+ ar2313_descr_t *rd;
|
|
+
|
|
+ if (sp->rx_skb[idx]) {
|
|
+#if DEBUG_RX
|
|
+ printk(KERN_INFO "ar2313 rx refill full\n");
|
|
+#endif /* DEBUG */
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ // partha: create additional room for the second GRE fragment
|
|
+ skb = alloc_skb(AR2313_BUFSIZE+128, GFP_ATOMIC);
|
|
+ if (!skb) {
|
|
+ printk("\n\n\n\n %s: No memory in system\n\n\n\n", __FUNCTION__);
|
|
+ break;
|
|
+ }
|
|
+ // partha: create additional room in the front for tx pkt capture
|
|
+ skb_reserve(skb, 32);
|
|
+
|
|
+ /*
|
|
+ * Make sure IP header starts on a fresh cache line.
|
|
+ */
|
|
+ skb->dev = dev;
|
|
+ skb_reserve(skb, RX_OFFSET);
|
|
+ sp->rx_skb[idx] = skb;
|
|
+
|
|
+ rd = (ar2313_descr_t *) &sp->rx_ring[idx];
|
|
+
|
|
+ /* initialize dma descriptor */
|
|
+ rd->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
|
|
+ DMA_RX1_CHAINED);
|
|
+ rd->addr = virt_to_phys(skb->data);
|
|
+ rd->descr = virt_to_phys(&sp->rx_ring[(idx+1) & (AR2313_DESCR_ENTRIES-1)]);
|
|
+ rd->status = DMA_RX_OWN;
|
|
+
|
|
+ idx = DSC_NEXT(idx);
|
|
+ }
|
|
+
|
|
+ if (!i) {
|
|
+#if DEBUG_ERR
|
|
+ printk(KERN_INFO "Out of memory when allocating standard receive buffers\n");
|
|
+#endif /* DEBUG */
|
|
+ } else {
|
|
+ sp->rx_skbprd = idx;
|
|
+ }
|
|
+
|
|
+ return;
|
|
+}
|
|
+
|
|
+#define AR2313_MAX_PKTS_PER_CALL 64
|
|
+
|
|
+static int ar2313_rx_int(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ struct sk_buff *skb, *skb_new;
|
|
+ ar2313_descr_t *rxdesc;
|
|
+ unsigned int status;
|
|
+ u32 idx;
|
|
+ int pkts = 0;
|
|
+ int rval;
|
|
+
|
|
+ idx = sp->cur_rx;
|
|
+
|
|
+ /* process at most the entire ring and then wait for another interrupt */
|
|
+ while(1) {
|
|
+
|
|
+ rxdesc = &sp->rx_ring[idx];
|
|
+ status = rxdesc->status;
|
|
+ if (status & DMA_RX_OWN) {
|
|
+ /* SiByte owns descriptor or descr not yet filled in */
|
|
+ rval = 0;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ if (++pkts > AR2313_MAX_PKTS_PER_CALL) {
|
|
+ rval = 1;
|
|
+ break;
|
|
+ }
|
|
+
|
|
+#if DEBUG_RX
|
|
+ printk("index %d\n", idx);
|
|
+ printk("RX status %08x\n", rxdesc->status);
|
|
+ printk("RX devcs %08x\n", rxdesc->devcs );
|
|
+ printk("RX addr %08x\n", rxdesc->addr );
|
|
+ printk("RX descr %08x\n", rxdesc->descr );
|
|
+#endif
|
|
+
|
|
+ if ((status & (DMA_RX_ERROR|DMA_RX_ERR_LENGTH)) &&
|
|
+ (!(status & DMA_RX_LONG))){
|
|
+#if DEBUG_RX
|
|
+ printk("%s: rx ERROR %08x\n", __FUNCTION__, status);
|
|
+#endif
|
|
+ sp->stats.rx_errors++;
|
|
+ sp->stats.rx_dropped++;
|
|
+
|
|
+ /* add statistics counters */
|
|
+ if (status & DMA_RX_ERR_CRC) sp->stats.rx_crc_errors++;
|
|
+ if (status & DMA_RX_ERR_COL) sp->stats.rx_over_errors++;
|
|
+ if (status & DMA_RX_ERR_LENGTH)
|
|
+ sp->stats.rx_length_errors++;
|
|
+ if (status & DMA_RX_ERR_RUNT) sp->stats.rx_over_errors++;
|
|
+ if (status & DMA_RX_ERR_DESC) sp->stats.rx_over_errors++;
|
|
+
|
|
+ } else {
|
|
+ /* alloc new buffer. */
|
|
+ skb_new = dev_alloc_skb(AR2313_BUFSIZE + RX_OFFSET + 128);
|
|
+ if (skb_new != NULL) {
|
|
+
|
|
+ skb = sp->rx_skb[idx];
|
|
+ /* set skb */
|
|
+ skb_put(skb, ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
|
|
+
|
|
+#ifdef CONFIG_MERLOT
|
|
+ if ((dev->am_pkt_handler == NULL) ||
|
|
+ (dev->am_pkt_handler(skb, dev) == 0)) {
|
|
+#endif
|
|
+ sp->stats.rx_bytes += skb->len;
|
|
+ skb->protocol = eth_type_trans(skb, dev);
|
|
+ /* pass the packet to upper layers */
|
|
+
|
|
+#ifdef CONFIG_MERLOT
|
|
+ if (dev->asap_netif_rx)
|
|
+ dev->asap_netif_rx(skb);
|
|
+ else
|
|
+#endif
|
|
+ netif_rx(skb);
|
|
+#ifdef CONFIG_MERLOT
|
|
+ }
|
|
+#endif
|
|
+ skb_new->dev = dev;
|
|
+ /* 16 bit align */
|
|
+ skb_reserve(skb_new, RX_OFFSET+32);
|
|
+ /* reset descriptor's curr_addr */
|
|
+ rxdesc->addr = virt_to_phys(skb_new->data);
|
|
+
|
|
+ sp->stats.rx_packets++;
|
|
+ sp->rx_skb[idx] = skb_new;
|
|
+
|
|
+ } else {
|
|
+ sp->stats.rx_dropped++;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ rxdesc->devcs = ((AR2313_BUFSIZE << DMA_RX1_BSIZE_SHIFT) |
|
|
+ DMA_RX1_CHAINED);
|
|
+ rxdesc->status = DMA_RX_OWN;
|
|
+
|
|
+ idx = DSC_NEXT(idx);
|
|
+ }
|
|
+
|
|
+ sp->cur_rx = idx;
|
|
+
|
|
+ return rval;
|
|
+}
|
|
+
|
|
+
|
|
+static void ar2313_tx_int(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ u32 idx;
|
|
+ struct sk_buff *skb;
|
|
+ ar2313_descr_t *txdesc;
|
|
+ unsigned int status=0;
|
|
+
|
|
+ idx = sp->tx_csm;
|
|
+
|
|
+ while (idx != sp->tx_prd) {
|
|
+
|
|
+ txdesc = &sp->tx_ring[idx];
|
|
+
|
|
+#if DEBUG_TX
|
|
+ printk("%s: TXINT: csm=%d idx=%d prd=%d status=%x devcs=%x addr=%08x descr=%x\n",
|
|
+ dev->name, sp->tx_csm, idx, sp->tx_prd,
|
|
+ txdesc->status, txdesc->devcs, txdesc->addr, txdesc->descr);
|
|
+#endif /* DEBUG */
|
|
+
|
|
+ if ((status = txdesc->status) & DMA_TX_OWN) {
|
|
+ /* ar2313 dma still owns descr */
|
|
+ break;
|
|
+ }
|
|
+ /* done with this descriptor */
|
|
+ txdesc->status = 0;
|
|
+
|
|
+ if (status & DMA_TX_ERROR){
|
|
+ sp->stats.tx_errors++;
|
|
+ sp->stats.tx_dropped++;
|
|
+ if(status & DMA_TX_ERR_UNDER)
|
|
+ sp->stats.tx_fifo_errors++;
|
|
+ if(status & DMA_TX_ERR_HB)
|
|
+ sp->stats.tx_heartbeat_errors++;
|
|
+ if(status & (DMA_TX_ERR_LOSS |
|
|
+ DMA_TX_ERR_LINK))
|
|
+ sp->stats.tx_carrier_errors++;
|
|
+ if (status & (DMA_TX_ERR_LATE|
|
|
+ DMA_TX_ERR_COL |
|
|
+ DMA_TX_ERR_JABBER |
|
|
+ DMA_TX_ERR_DEFER))
|
|
+ sp->stats.tx_aborted_errors++;
|
|
+ } else {
|
|
+ /* transmit OK */
|
|
+ sp->stats.tx_packets++;
|
|
+ }
|
|
+
|
|
+ skb = sp->tx_skb[idx];
|
|
+ sp->tx_skb[idx] = NULL;
|
|
+ idx = DSC_NEXT(idx);
|
|
+ sp->stats.tx_bytes += skb->len;
|
|
+ dev_kfree_skb_irq(skb);
|
|
+ }
|
|
+
|
|
+ sp->tx_csm = idx;
|
|
+
|
|
+ return;
|
|
+}
|
|
+
|
|
+
|
|
+static void
|
|
+rx_tasklet_func(unsigned long data)
|
|
+{
|
|
+ struct net_device *dev = (struct net_device *) data;
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+
|
|
+ if (sp->unloading) {
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ if (ar2313_rx_int(dev)) {
|
|
+ tasklet_hi_schedule(&sp->rx_tasklet);
|
|
+ }
|
|
+ else {
|
|
+ unsigned long flags;
|
|
+ spin_lock_irqsave(&sp->lock, flags);
|
|
+ sp->dma_regs->intr_ena |= DMA_STATUS_RI;
|
|
+ spin_unlock_irqrestore(&sp->lock, flags);
|
|
+ }
|
|
+}
|
|
+
|
|
+static void
|
|
+rx_schedule(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+
|
|
+ sp->dma_regs->intr_ena &= ~DMA_STATUS_RI;
|
|
+
|
|
+ tasklet_hi_schedule(&sp->rx_tasklet);
|
|
+}
|
|
+
|
|
+static irqreturn_t ar2313_interrupt(int irq, void *dev_id, struct pt_regs *ptregs)
|
|
+{
|
|
+ struct net_device *dev = (struct net_device *)dev_id;
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ unsigned int status, enabled;
|
|
+
|
|
+ /* clear interrupt */
|
|
+ /*
|
|
+ * Don't clear RI bit if currently disabled.
|
|
+ */
|
|
+ status = sp->dma_regs->status;
|
|
+ enabled = sp->dma_regs->intr_ena;
|
|
+ sp->dma_regs->status = status & enabled;
|
|
+
|
|
+ if (status & DMA_STATUS_NIS) {
|
|
+ /* normal status */
|
|
+ /*
|
|
+ * Don't schedule rx processing if interrupt
|
|
+ * is already disabled.
|
|
+ */
|
|
+ if (status & enabled & DMA_STATUS_RI) {
|
|
+ /* receive interrupt */
|
|
+ rx_schedule(dev);
|
|
+ }
|
|
+ if (status & DMA_STATUS_TI) {
|
|
+ /* transmit interrupt */
|
|
+ ar2313_tx_int(dev);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ if (status & DMA_STATUS_AIS) {
|
|
+#if DEBUG_INT
|
|
+ printk("%s: AIS set %08x & %x\n", __FUNCTION__,
|
|
+ status, (DMA_STATUS_FBE | DMA_STATUS_TPS));
|
|
+#endif
|
|
+ /* abnormal status */
|
|
+ if (status & (DMA_STATUS_FBE | DMA_STATUS_TPS)) {
|
|
+ ar2313_restart(dev);
|
|
+ }
|
|
+ }
|
|
+ return IRQ_RETVAL(0);
|
|
+}
|
|
+
|
|
+
|
|
+static int ar2313_open(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp;
|
|
+
|
|
+ sp = dev->priv;
|
|
+
|
|
+ dev->mtu = 1500;
|
|
+ netif_start_queue(dev);
|
|
+
|
|
+ sp->eth_regs->mac_control |= MAC_CONTROL_RE;
|
|
+
|
|
+ AR2313_MOD_INC_USE_COUNT;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void ar2313_halt(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ int j;
|
|
+
|
|
+ tasklet_disable(&sp->rx_tasklet);
|
|
+
|
|
+ /* kill the MAC */
|
|
+ sp->eth_regs->mac_control &= ~(MAC_CONTROL_RE | /* disable Receives */
|
|
+ MAC_CONTROL_TE); /* disable Transmits */
|
|
+ /* stop dma */
|
|
+ sp->dma_regs->control = 0;
|
|
+ sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR;
|
|
+
|
|
+ /* place phy and MAC in reset */
|
|
+ *sp->int_regs |= (ar_int_mac_mask | ar_int_phy_mask);
|
|
+
|
|
+ /* free buffers on tx ring */
|
|
+ for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
|
|
+ struct sk_buff *skb;
|
|
+ ar2313_descr_t *txdesc;
|
|
+
|
|
+ txdesc = &sp->tx_ring[j];
|
|
+ txdesc->descr = 0;
|
|
+
|
|
+ skb = sp->tx_skb[j];
|
|
+ if (skb) {
|
|
+ dev_kfree_skb(skb);
|
|
+ sp->tx_skb[j] = NULL;
|
|
+ }
|
|
+ }
|
|
+}
|
|
+
|
|
+/*
|
|
+ * close should do nothing. Here's why. It's called when
|
|
+ * 'ifconfig bond0 down' is run. If it calls free_irq then
|
|
+ * the irq is gone forever ! When bond0 is made 'up' again,
|
|
+ * the ar2313_open () does not call request_irq (). Worse,
|
|
+ * the call to ar2313_halt() generates a WDOG reset due to
|
|
+ * the write to 'sp->int_regs' and the box reboots.
|
|
+ * Commenting this out is good since it allows the
|
|
+ * system to resume when bond0 is made up again.
|
|
+ */
|
|
+static int ar2313_close(struct net_device *dev)
|
|
+{
|
|
+#if 0
|
|
+ /*
|
|
+ * Disable interrupts
|
|
+ */
|
|
+ disable_irq(dev->irq);
|
|
+
|
|
+ /*
|
|
+ * Without (or before) releasing irq and stopping hardware, this
|
|
+ * is an absolute non-sense, by the way. It will be reset instantly
|
|
+ * by the first irq.
|
|
+ */
|
|
+ netif_stop_queue(dev);
|
|
+
|
|
+ /* stop the MAC and DMA engines */
|
|
+ ar2313_halt(dev);
|
|
+
|
|
+ /* release the interrupt */
|
|
+ free_irq(dev->irq, dev);
|
|
+
|
|
+#endif
|
|
+ AR2313_MOD_DEC_USE_COUNT;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ ar2313_descr_t *td;
|
|
+ u32 idx;
|
|
+
|
|
+ idx = sp->tx_prd;
|
|
+ td = &sp->tx_ring[idx];
|
|
+
|
|
+ if (td->status & DMA_TX_OWN) {
|
|
+#if DEBUG_TX
|
|
+ printk("%s: No space left to Tx\n", __FUNCTION__);
|
|
+#endif
|
|
+ /* free skbuf and lie to the caller that we sent it out */
|
|
+ sp->stats.tx_dropped++;
|
|
+ dev_kfree_skb(skb);
|
|
+
|
|
+ /* restart transmitter in case locked */
|
|
+ sp->dma_regs->xmt_poll = 0;
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
+ /* Setup the transmit descriptor. */
|
|
+ td->devcs = ((skb->len << DMA_TX1_BSIZE_SHIFT) |
|
|
+ (DMA_TX1_LS|DMA_TX1_IC|DMA_TX1_CHAINED));
|
|
+ td->addr = virt_to_phys(skb->data);
|
|
+ td->status = DMA_TX_OWN;
|
|
+
|
|
+ /* kick transmitter last */
|
|
+ sp->dma_regs->xmt_poll = 0;
|
|
+
|
|
+#if DEBUG_TX
|
|
+ printk("index %d\n", idx);
|
|
+ printk("TX status %08x\n", td->status);
|
|
+ printk("TX devcs %08x\n", td->devcs );
|
|
+ printk("TX addr %08x\n", td->addr );
|
|
+ printk("TX descr %08x\n", td->descr );
|
|
+#endif
|
|
+
|
|
+ sp->tx_skb[idx] = skb;
|
|
+ idx = DSC_NEXT(idx);
|
|
+ sp->tx_prd = idx;
|
|
+
|
|
+ //dev->trans_start = jiffies;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int netdev_get_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
+{
|
|
+ struct ar2313_private *np = dev->priv;
|
|
+ u32 tmp;
|
|
+
|
|
+ ecmd->supported =
|
|
+ (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full |
|
|
+ SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full |
|
|
+ SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII);
|
|
+
|
|
+ ecmd->port = PORT_TP;
|
|
+ /* only supports internal transceiver */
|
|
+ ecmd->transceiver = XCVR_INTERNAL;
|
|
+ /* not sure what this is for */
|
|
+ ecmd->phy_address = 1;
|
|
+
|
|
+ ecmd->advertising = ADVERTISED_MII;
|
|
+ tmp = armiiread(np->phy, MII_ADVERTISE);
|
|
+ if (tmp & ADVERTISE_10HALF)
|
|
+ ecmd->advertising |= ADVERTISED_10baseT_Half;
|
|
+ if (tmp & ADVERTISE_10FULL)
|
|
+ ecmd->advertising |= ADVERTISED_10baseT_Full;
|
|
+ if (tmp & ADVERTISE_100HALF)
|
|
+ ecmd->advertising |= ADVERTISED_100baseT_Half;
|
|
+ if (tmp & ADVERTISE_100FULL)
|
|
+ ecmd->advertising |= ADVERTISED_100baseT_Full;
|
|
+
|
|
+ tmp = armiiread(np->phy, MII_BMCR);
|
|
+ if (tmp & BMCR_ANENABLE) {
|
|
+ ecmd->advertising |= ADVERTISED_Autoneg;
|
|
+ ecmd->autoneg = AUTONEG_ENABLE;
|
|
+ } else {
|
|
+ ecmd->autoneg = AUTONEG_DISABLE;
|
|
+ }
|
|
+
|
|
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
|
|
+ tmp = armiiread(np->phy, MII_LPA);
|
|
+ if (tmp & (LPA_100FULL|LPA_10FULL)) {
|
|
+ ecmd->duplex = DUPLEX_FULL;
|
|
+ } else {
|
|
+ ecmd->duplex = DUPLEX_HALF;
|
|
+ }
|
|
+ if (tmp & (LPA_100FULL|LPA_100HALF)) {
|
|
+ ecmd->speed = SPEED_100;
|
|
+ } else {
|
|
+ ecmd->speed = SPEED_10;
|
|
+ }
|
|
+ } else {
|
|
+ if (tmp & BMCR_FULLDPLX) {
|
|
+ ecmd->duplex = DUPLEX_FULL;
|
|
+ } else {
|
|
+ ecmd->duplex = DUPLEX_HALF;
|
|
+ }
|
|
+ if (tmp & BMCR_SPEED100) {
|
|
+ ecmd->speed = SPEED_100;
|
|
+ } else {
|
|
+ ecmd->speed = SPEED_10;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ /* ignore maxtxpkt, maxrxpkt for now */
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd)
|
|
+{
|
|
+ struct ar2313_private *np = dev->priv;
|
|
+ u32 tmp;
|
|
+
|
|
+ if (ecmd->speed != SPEED_10 && ecmd->speed != SPEED_100)
|
|
+ return -EINVAL;
|
|
+ if (ecmd->duplex != DUPLEX_HALF && ecmd->duplex != DUPLEX_FULL)
|
|
+ return -EINVAL;
|
|
+ if (ecmd->port != PORT_TP)
|
|
+ return -EINVAL;
|
|
+ if (ecmd->transceiver != XCVR_INTERNAL)
|
|
+ return -EINVAL;
|
|
+ if (ecmd->autoneg != AUTONEG_DISABLE && ecmd->autoneg != AUTONEG_ENABLE)
|
|
+ return -EINVAL;
|
|
+ /* ignore phy_address, maxtxpkt, maxrxpkt for now */
|
|
+
|
|
+ /* WHEW! now lets bang some bits */
|
|
+
|
|
+ tmp = armiiread(np->phy, MII_BMCR);
|
|
+ if (ecmd->autoneg == AUTONEG_ENABLE) {
|
|
+ /* turn on autonegotiation */
|
|
+ tmp |= BMCR_ANENABLE;
|
|
+ printk("%s: Enabling auto-neg\n", dev->name);
|
|
+ } else {
|
|
+ /* turn off auto negotiation, set speed and duplexity */
|
|
+ tmp &= ~(BMCR_ANENABLE | BMCR_SPEED100 | BMCR_FULLDPLX);
|
|
+ if (ecmd->speed == SPEED_100)
|
|
+ tmp |= BMCR_SPEED100;
|
|
+ if (ecmd->duplex == DUPLEX_FULL)
|
|
+ tmp |= BMCR_FULLDPLX;
|
|
+ printk("%s: Hard coding %d/%s\n", dev->name,
|
|
+ (ecmd->speed == SPEED_100)? 100:10,
|
|
+ (ecmd->duplex == DUPLEX_FULL)? "full":"half");
|
|
+ }
|
|
+ armiiwrite(np->phy, MII_BMCR, tmp);
|
|
+ np->phyData = 0;
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int netdev_ethtool_ioctl(struct net_device *dev, void *useraddr)
|
|
+{
|
|
+ struct ar2313_private *np = dev->priv;
|
|
+ u32 cmd;
|
|
+
|
|
+ if (get_user(cmd, (u32 *)useraddr))
|
|
+ return -EFAULT;
|
|
+
|
|
+ switch (cmd) {
|
|
+ /* get settings */
|
|
+ case ETHTOOL_GSET: {
|
|
+ struct ethtool_cmd ecmd = { ETHTOOL_GSET };
|
|
+ spin_lock_irq(&np->lock);
|
|
+ netdev_get_ecmd(dev, &ecmd);
|
|
+ spin_unlock_irq(&np->lock);
|
|
+ if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
|
|
+ return -EFAULT;
|
|
+ return 0;
|
|
+ }
|
|
+ /* set settings */
|
|
+ case ETHTOOL_SSET: {
|
|
+ struct ethtool_cmd ecmd;
|
|
+ int r;
|
|
+ if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
|
|
+ return -EFAULT;
|
|
+ spin_lock_irq(&np->lock);
|
|
+ r = netdev_set_ecmd(dev, &ecmd);
|
|
+ spin_unlock_irq(&np->lock);
|
|
+ return r;
|
|
+ }
|
|
+ /* restart autonegotiation */
|
|
+ case ETHTOOL_NWAY_RST: {
|
|
+ int tmp;
|
|
+ int r = -EINVAL;
|
|
+ /* if autoneg is off, it's an error */
|
|
+ tmp = armiiread(np->phy, MII_BMCR);
|
|
+ if (tmp & BMCR_ANENABLE) {
|
|
+ tmp |= (BMCR_ANRESTART);
|
|
+ armiiwrite(np->phy, MII_BMCR, tmp);
|
|
+ r = 0;
|
|
+ }
|
|
+ return r;
|
|
+ }
|
|
+ /* get link status */
|
|
+ case ETHTOOL_GLINK: {
|
|
+ struct ethtool_value edata = {ETHTOOL_GLINK};
|
|
+ edata.data = (armiiread(np->phy, MII_BMSR)&BMSR_LSTATUS) ? 1:0;
|
|
+ if (copy_to_user(useraddr, &edata, sizeof(edata)))
|
|
+ return -EFAULT;
|
|
+ return 0;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ return -EOPNOTSUPP;
|
|
+}
|
|
+
|
|
+static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
|
|
+{
|
|
+ struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data;
|
|
+
|
|
+ switch (cmd) {
|
|
+ case SIOCDEVPRIVATE: {
|
|
+ struct ar2313_cmd scmd;
|
|
+
|
|
+ if (copy_from_user(&scmd, ifr->ifr_data, sizeof(scmd)))
|
|
+ return -EFAULT;
|
|
+
|
|
+#if DEBUG
|
|
+ printk("%s: ioctl devprivate c=%d a=%x l=%d m=%d d=%x,%x\n",
|
|
+ dev->name, scmd.cmd,
|
|
+ scmd.address, scmd.length,
|
|
+ scmd.mailbox, scmd.data[0], scmd.data[1]);
|
|
+#endif /* DEBUG */
|
|
+
|
|
+ switch (scmd.cmd) {
|
|
+ case AR2313_READ_DATA:
|
|
+ if(scmd.length==4){
|
|
+ scmd.data[0] = *((u32*)scmd.address);
|
|
+ } else if(scmd.length==2) {
|
|
+ scmd.data[0] = *((u16*)scmd.address);
|
|
+ } else if (scmd.length==1) {
|
|
+ scmd.data[0] = *((u8*)scmd.address);
|
|
+ } else {
|
|
+ return -EOPNOTSUPP;
|
|
+ }
|
|
+ if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
|
|
+ return -EFAULT;
|
|
+ break;
|
|
+
|
|
+ case AR2313_WRITE_DATA:
|
|
+ if(scmd.length==4){
|
|
+ *((u32*)scmd.address) = scmd.data[0];
|
|
+ } else if(scmd.length==2) {
|
|
+ *((u16*)scmd.address) = scmd.data[0];
|
|
+ } else if (scmd.length==1) {
|
|
+ *((u8*)scmd.address) = scmd.data[0];
|
|
+ } else {
|
|
+ return -EOPNOTSUPP;
|
|
+ }
|
|
+ break;
|
|
+
|
|
+ case AR2313_GET_VERSION:
|
|
+ // SAMEER: sprintf((char*) &scmd, "%s", ARUBA_VERSION);
|
|
+ if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
|
|
+ return -EFAULT;
|
|
+ break;
|
|
+
|
|
+ default:
|
|
+ return -EOPNOTSUPP;
|
|
+ }
|
|
+ return 0;
|
|
+ }
|
|
+
|
|
+ case SIOCETHTOOL:
|
|
+ return netdev_ethtool_ioctl(dev, (void *) ifr->ifr_data);
|
|
+
|
|
+ case SIOCGMIIPHY: /* Get address of MII PHY in use. */
|
|
+ data->phy_id = 1;
|
|
+ /* Fall Through */
|
|
+
|
|
+ case SIOCGMIIREG: /* Read MII PHY register. */
|
|
+ case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
|
|
+ data->val_out = armiiread(data->phy_id & 0x1f,
|
|
+ data->reg_num & 0x1f);
|
|
+ return 0;
|
|
+ case SIOCSMIIREG: /* Write MII PHY register. */
|
|
+ case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
|
|
+ if (!capable(CAP_NET_ADMIN))
|
|
+ return -EPERM;
|
|
+ armiiwrite(data->phy_id & 0x1f,
|
|
+ data->reg_num & 0x1f, data->val_in);
|
|
+ return 0;
|
|
+
|
|
+ case SIOCSIFHWADDR:
|
|
+ if (copy_from_user(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
|
|
+ return -EFAULT;
|
|
+ return 0;
|
|
+
|
|
+ case SIOCGIFHWADDR:
|
|
+ if (copy_to_user(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
|
|
+ return -EFAULT;
|
|
+ return 0;
|
|
+
|
|
+ default:
|
|
+ break;
|
|
+ }
|
|
+
|
|
+ return -EOPNOTSUPP;
|
|
+}
|
|
+
|
|
+static struct net_device_stats *ar2313_get_stats(struct net_device *dev)
|
|
+{
|
|
+ struct ar2313_private *sp = dev->priv;
|
|
+ return &sp->stats;
|
|
+}
|
|
+
|
|
+static short
|
|
+armiiread(short phy, short reg)
|
|
+{
|
|
+ volatile ETHERNET_STRUCT * ethernet;
|
|
+
|
|
+ ethernet = (volatile ETHERNET_STRUCT *)ETHERNET_BASE; /* always MAC 0 */
|
|
+ ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
|
|
+ (phy << MII_ADDR_PHY_SHIFT));
|
|
+ while (ethernet->mii_addr & MII_ADDR_BUSY);
|
|
+ return (ethernet->mii_data >> MII_DATA_SHIFT);
|
|
+}
|
|
+
|
|
+static void
|
|
+armiiwrite(short phy, short reg, short data)
|
|
+{
|
|
+ volatile ETHERNET_STRUCT * ethernet;
|
|
+
|
|
+ ethernet = (volatile ETHERNET_STRUCT *)ETHERNET_BASE; /* always MAC 0 */
|
|
+ while (ethernet->mii_addr & MII_ADDR_BUSY);
|
|
+ ethernet->mii_data = data << MII_DATA_SHIFT;
|
|
+ ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
|
|
+ (phy << MII_ADDR_PHY_SHIFT) |
|
|
+ MII_ADDR_WRITE);
|
|
+}
|
|
+
|
|
diff -Nur linux-2.6.17/drivers/net/ar2313/ar2313.h linux-2.6.17-owrt/drivers/net/ar2313/ar2313.h
|
|
--- linux-2.6.17/drivers/net/ar2313/ar2313.h 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.17-owrt/drivers/net/ar2313/ar2313.h 2006-06-19 12:05:29.000000000 +0200
|
|
@@ -0,0 +1,190 @@
|
|
+#ifndef _AR2313_H_
|
|
+#define _AR2313_H_
|
|
+
|
|
+#include <linux/config.h>
|
|
+#include <asm/bootinfo.h>
|
|
+#include "platform.h"
|
|
+
|
|
+extern unsigned long mips_machtype;
|
|
+
|
|
+#undef ETHERNET_BASE
|
|
+#define ETHERNET_BASE ar_eth_base
|
|
+#define ETHERNET_SIZE 0x00100000
|
|
+#define ETHERNET_MACS 2
|
|
+
|
|
+#undef DMA_BASE
|
|
+#define DMA_BASE ar_dma_base
|
|
+#define DMA_SIZE 0x00100000
|
|
+
|
|
+
|
|
+/*
|
|
+ * probe link timer - 5 secs
|
|
+ */
|
|
+#define LINK_TIMER (5*HZ)
|
|
+
|
|
+/*
|
|
+ * Interrupt register base address
|
|
+ */
|
|
+#define INTERRUPT_BASE PHYS_TO_K1(ar_int_base)
|
|
+
|
|
+/*
|
|
+ * Reset Register
|
|
+ */
|
|
+#define AR531X_RESET (AR531X_RESETTMR + 0x0020)
|
|
+#define RESET_SYSTEM 0x00000001 /* cold reset full system */
|
|
+#define RESET_PROC 0x00000002 /* cold reset MIPS core */
|
|
+#define RESET_WLAN0 0x00000004 /* cold reset WLAN MAC and BB */
|
|
+#define RESET_EPHY0 0x00000008 /* cold reset ENET0 phy */
|
|
+#define RESET_EPHY1 0x00000010 /* cold reset ENET1 phy */
|
|
+#define RESET_ENET0 0x00000020 /* cold reset ENET0 mac */
|
|
+#define RESET_ENET1 0x00000040 /* cold reset ENET1 mac */
|
|
+
|
|
+#define IS_DMA_TX_INT(X) (((X) & (DMA_STATUS_TI)) != 0)
|
|
+#define IS_DMA_RX_INT(X) (((X) & (DMA_STATUS_RI)) != 0)
|
|
+#define IS_DRIVER_OWNED(X) (((X) & (DMA_TX_OWN)) == 0)
|
|
+
|
|
+#ifndef K1_TO_PHYS
|
|
+// hack
|
|
+#define K1_TO_PHYS(x) (((unsigned int)(x)) & 0x1FFFFFFF) /* kseg1 to physical */
|
|
+#endif
|
|
+
|
|
+#ifndef PHYS_TO_K1
|
|
+// hack
|
|
+#define PHYS_TO_K1(x) (((unsigned int)(x)) | 0xA0000000) /* physical to kseg1 */
|
|
+#endif
|
|
+
|
|
+#define AR2313_TX_TIMEOUT (HZ/4)
|
|
+
|
|
+/*
|
|
+ * Rings
|
|
+ */
|
|
+#define DSC_RING_ENTRIES_SIZE (AR2313_DESCR_ENTRIES * sizeof(struct desc))
|
|
+#define DSC_NEXT(idx) ((idx + 1) & (AR2313_DESCR_ENTRIES - 1))
|
|
+
|
|
+static inline int tx_space (u32 csm, u32 prd)
|
|
+{
|
|
+ return (csm - prd - 1) & (AR2313_DESCR_ENTRIES - 1);
|
|
+}
|
|
+
|
|
+#if MAX_SKB_FRAGS
|
|
+#define TX_RESERVED (MAX_SKB_FRAGS+1) /* +1 for message header */
|
|
+#define tx_ring_full(csm, prd) (tx_space(csm, prd) <= TX_RESERVED)
|
|
+#else
|
|
+#define tx_ring_full 0
|
|
+#endif
|
|
+
|
|
+#define AR2313_MBGET 2
|
|
+#define AR2313_MBSET 3
|
|
+#define AR2313_PCI_RECONFIG 4
|
|
+#define AR2313_PCI_DUMP 5
|
|
+#define AR2313_TEST_PANIC 6
|
|
+#define AR2313_TEST_NULLPTR 7
|
|
+#define AR2313_READ_DATA 8
|
|
+#define AR2313_WRITE_DATA 9
|
|
+#define AR2313_GET_VERSION 10
|
|
+#define AR2313_TEST_HANG 11
|
|
+#define AR2313_SYNC 12
|
|
+
|
|
+
|
|
+struct ar2313_cmd {
|
|
+ u32 cmd;
|
|
+ u32 address; /* virtual address of image */
|
|
+ u32 length; /* size of image to download */
|
|
+ u32 mailbox; /* mailbox to get/set */
|
|
+ u32 data[2]; /* contents of mailbox to read/write */
|
|
+};
|
|
+
|
|
+
|
|
+/*
|
|
+ * Struct private for the Sibyte.
|
|
+ *
|
|
+ * Elements are grouped so variables used by the tx handling goes
|
|
+ * together, and will go into the same cache lines etc. in order to
|
|
+ * avoid cache line contention between the rx and tx handling on SMP.
|
|
+ *
|
|
+ * Frequently accessed variables are put at the beginning of the
|
|
+ * struct to help the compiler generate better/shorter code.
|
|
+ */
|
|
+struct ar2313_private
|
|
+{
|
|
+ int version;
|
|
+ u32 mb[2];
|
|
+
|
|
+ volatile ETHERNET_STRUCT *eth_regs;
|
|
+ volatile DMA *dma_regs;
|
|
+ volatile u32 *int_regs;
|
|
+
|
|
+ spinlock_t lock; /* Serialise access to device */
|
|
+
|
|
+ /*
|
|
+ * RX and TX descriptors, must be adjacent
|
|
+ */
|
|
+ ar2313_descr_t *rx_ring;
|
|
+ ar2313_descr_t *tx_ring;
|
|
+
|
|
+
|
|
+ struct sk_buff **rx_skb;
|
|
+ struct sk_buff **tx_skb;
|
|
+
|
|
+ /*
|
|
+ * RX elements
|
|
+ */
|
|
+ u32 rx_skbprd;
|
|
+ u32 cur_rx;
|
|
+
|
|
+ /*
|
|
+ * TX elements
|
|
+ */
|
|
+ u32 tx_prd;
|
|
+ u32 tx_csm;
|
|
+
|
|
+ /*
|
|
+ * Misc elements
|
|
+ */
|
|
+ int board_idx;
|
|
+ char name[48];
|
|
+ struct net_device_stats stats;
|
|
+ struct {
|
|
+ u32 address;
|
|
+ u32 length;
|
|
+ char *mapping;
|
|
+ } desc;
|
|
+
|
|
+
|
|
+ struct timer_list link_timer;
|
|
+ unsigned short phy; /* merlot phy = 1, samsung phy = 0x1f */
|
|
+ unsigned short mac;
|
|
+ unsigned short link; /* 0 - link down, 1 - link up */
|
|
+ u16 phyData;
|
|
+
|
|
+ struct tasklet_struct rx_tasklet;
|
|
+ int unloading;
|
|
+};
|
|
+
|
|
+
|
|
+/*
|
|
+ * Prototypes
|
|
+ */
|
|
+static int ar2313_init(struct net_device *dev);
|
|
+#ifdef TX_TIMEOUT
|
|
+static void ar2313_tx_timeout(struct net_device *dev);
|
|
+#endif
|
|
+#if 0
|
|
+static void ar2313_multicast_list(struct net_device *dev);
|
|
+#endif
|
|
+static int ar2313_restart(struct net_device *dev);
|
|
+#if DEBUG
|
|
+static void ar2313_dump_regs(struct net_device *dev);
|
|
+#endif
|
|
+static void ar2313_load_rx_ring(struct net_device *dev, int bufs);
|
|
+static irqreturn_t ar2313_interrupt(int irq, void *dev_id, struct pt_regs *regs);
|
|
+static int ar2313_open(struct net_device *dev);
|
|
+static int ar2313_start_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
+static int ar2313_close(struct net_device *dev);
|
|
+static int ar2313_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd);
|
|
+static void ar2313_init_cleanup(struct net_device *dev);
|
|
+static int ar2313_setup_timer(struct net_device *dev);
|
|
+static void ar2313_link_timer_fn(unsigned long data);
|
|
+static void ar2313_check_link(struct net_device *dev);
|
|
+static struct net_device_stats *ar2313_get_stats(struct net_device *dev);
|
|
+#endif /* _AR2313_H_ */
|
|
diff -Nur linux-2.6.17/drivers/net/ar2313/ar2313_msg.h linux-2.6.17-owrt/drivers/net/ar2313/ar2313_msg.h
|
|
--- linux-2.6.17/drivers/net/ar2313/ar2313_msg.h 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.17-owrt/drivers/net/ar2313/ar2313_msg.h 2006-06-19 12:05:29.000000000 +0200
|
|
@@ -0,0 +1,17 @@
|
|
+#ifndef _AR2313_MSG_H_
|
|
+#define _AR2313_MSG_H_
|
|
+
|
|
+#define AR2313_MTU 1692
|
|
+#define AR2313_PRIOS 1
|
|
+#define AR2313_QUEUES (2*AR2313_PRIOS)
|
|
+
|
|
+#define AR2313_DESCR_ENTRIES 64
|
|
+
|
|
+typedef struct {
|
|
+ volatile unsigned int status; // OWN, Device control and status.
|
|
+ volatile unsigned int devcs; // pkt Control bits + Length
|
|
+ volatile unsigned int addr; // Current Address.
|
|
+ volatile unsigned int descr; // Next descriptor in chain.
|
|
+} ar2313_descr_t;
|
|
+
|
|
+#endif /* _AR2313_MSG_H_ */
|
|
diff -Nur linux-2.6.17/drivers/net/ar2313/dma.h linux-2.6.17-owrt/drivers/net/ar2313/dma.h
|
|
--- linux-2.6.17/drivers/net/ar2313/dma.h 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.17-owrt/drivers/net/ar2313/dma.h 2006-06-19 12:05:29.000000000 +0200
|
|
@@ -0,0 +1,135 @@
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+#ifndef __ARUBA_DMA_H__
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+#define __ARUBA_DMA_H__
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+
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+/*******************************************************************************
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+ *
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+ * Copyright 2002 Integrated Device Technology, Inc.
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+ * All rights reserved.
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+ *
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+ * DMA register definition.
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+ *
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+ * File : $Id: dma.h,v 1.3 2002/06/06 18:34:03 astichte Exp $
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+ *
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+ * Author : ryan.holmQVist@idt.com
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+ * Date : 20011005
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+ * Update :
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+ * $Log: dma.h,v $
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+ * Revision 1.3 2002/06/06 18:34:03 astichte
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+ * Added XXX_PhysicalAddress and XXX_VirtualAddress
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+ *
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+ * Revision 1.2 2002/06/05 18:30:46 astichte
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+ * Removed IDTField
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+ *
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+ * Revision 1.1 2002/05/29 17:33:21 sysarch
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+ * jba File moved from vcode/include/idt/acacia
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+ *
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+ *
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+ ******************************************************************************/
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+
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+#define AR_BIT(x) (1 << (x))
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+#define DMA_RX_ERR_CRC AR_BIT(1)
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+#define DMA_RX_ERR_DRIB AR_BIT(2)
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+#define DMA_RX_ERR_MII AR_BIT(3)
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+#define DMA_RX_EV2 AR_BIT(5)
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+#define DMA_RX_ERR_COL AR_BIT(6)
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+#define DMA_RX_LONG AR_BIT(7)
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+#define DMA_RX_LS AR_BIT(8) /* last descriptor */
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+#define DMA_RX_FS AR_BIT(9) /* first descriptor */
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+#define DMA_RX_MF AR_BIT(10) /* multicast frame */
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+#define DMA_RX_ERR_RUNT AR_BIT(11) /* runt frame */
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+#define DMA_RX_ERR_LENGTH AR_BIT(12) /* length error */
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+#define DMA_RX_ERR_DESC AR_BIT(14) /* descriptor error */
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+#define DMA_RX_ERROR AR_BIT(15) /* error summary */
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+#define DMA_RX_LEN_MASK 0x3fff0000
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+#define DMA_RX_LEN_SHIFT 16
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+#define DMA_RX_FILT AR_BIT(30)
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+#define DMA_RX_OWN AR_BIT(31) /* desc owned by DMA controller */
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+
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+#define DMA_RX1_BSIZE_MASK 0x000007ff
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+#define DMA_RX1_BSIZE_SHIFT 0
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+#define DMA_RX1_CHAINED AR_BIT(24)
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+#define DMA_RX1_RER AR_BIT(25)
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+
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+#define DMA_TX_ERR_UNDER AR_BIT(1) /* underflow error */
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+#define DMA_TX_ERR_DEFER AR_BIT(2) /* excessive deferral */
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+#define DMA_TX_COL_MASK 0x78
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+#define DMA_TX_COL_SHIFT 3
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+#define DMA_TX_ERR_HB AR_BIT(7) /* hearbeat failure */
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+#define DMA_TX_ERR_COL AR_BIT(8) /* excessive collisions */
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+#define DMA_TX_ERR_LATE AR_BIT(9) /* late collision */
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+#define DMA_TX_ERR_LINK AR_BIT(10) /* no carrier */
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+#define DMA_TX_ERR_LOSS AR_BIT(11) /* loss of carrier */
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+#define DMA_TX_ERR_JABBER AR_BIT(14) /* transmit jabber timeout */
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+#define DMA_TX_ERROR AR_BIT(15) /* frame aborted */
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+#define DMA_TX_OWN AR_BIT(31) /* descr owned by DMA controller */
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+
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+#define DMA_TX1_BSIZE_MASK 0x000007ff
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+#define DMA_TX1_BSIZE_SHIFT 0
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+#define DMA_TX1_CHAINED AR_BIT(24) /* chained descriptors */
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+#define DMA_TX1_TER AR_BIT(25) /* transmit end of ring */
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+#define DMA_TX1_FS AR_BIT(29) /* first segment */
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+#define DMA_TX1_LS AR_BIT(30) /* last segment */
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+#define DMA_TX1_IC AR_BIT(31) /* interrupt on completion */
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+
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+#define RCVPKT_LENGTH(X) (X >> 16) /* Received pkt Length */
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+
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+#define MAC_CONTROL_RE AR_BIT(2) /* receive enable */
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+#define MAC_CONTROL_TE AR_BIT(3) /* transmit enable */
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+#define MAC_CONTROL_DC AR_BIT(5) /* Deferral check*/
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+#define MAC_CONTROL_ASTP AR_BIT(8) /* Auto pad strip */
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+#define MAC_CONTROL_DRTY AR_BIT(10) /* Disable retry */
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+#define MAC_CONTROL_DBF AR_BIT(11) /* Disable bcast frames */
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+#define MAC_CONTROL_LCC AR_BIT(12) /* late collision ctrl */
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+#define MAC_CONTROL_HP AR_BIT(13) /* Hash Perfect filtering */
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+#define MAC_CONTROL_HASH AR_BIT(14) /* Unicast hash filtering */
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+#define MAC_CONTROL_HO AR_BIT(15) /* Hash only filtering */
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+#define MAC_CONTROL_PB AR_BIT(16) /* Pass Bad frames */
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+#define MAC_CONTROL_IF AR_BIT(17) /* Inverse filtering */
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+#define MAC_CONTROL_PR AR_BIT(18) /* promiscuous mode (valid frames only) */
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+#define MAC_CONTROL_PM AR_BIT(19) /* pass multicast */
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+#define MAC_CONTROL_F AR_BIT(20) /* full-duplex */
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+#define MAC_CONTROL_DRO AR_BIT(23) /* Disable Receive Own */
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+#define MAC_CONTROL_HBD AR_BIT(28) /* heart-beat disabled (MUST BE SET) */
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+#define MAC_CONTROL_BLE AR_BIT(30) /* big endian mode */
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+#define MAC_CONTROL_RA AR_BIT(31) /* receive all (valid and invalid frames) */
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+
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+#define MII_ADDR_BUSY AR_BIT(0)
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+#define MII_ADDR_WRITE AR_BIT(1)
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+#define MII_ADDR_REG_SHIFT 6
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+#define MII_ADDR_PHY_SHIFT 11
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+#define MII_DATA_SHIFT 0
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+
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+#define FLOW_CONTROL_FCE AR_BIT(1)
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+
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+#define DMA_BUS_MODE_SWR AR_BIT(0) /* software reset */
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+#define DMA_BUS_MODE_BLE AR_BIT(7) /* big endian mode */
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+#define DMA_BUS_MODE_PBL_SHIFT 8 /* programmable burst length 32 */
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+#define DMA_BUS_MODE_DBO AR_BIT(20) /* big-endian descriptors */
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+
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+#define DMA_STATUS_TI AR_BIT(0) /* transmit interrupt */
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+#define DMA_STATUS_TPS AR_BIT(1) /* transmit process stopped */
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+#define DMA_STATUS_TU AR_BIT(2) /* transmit buffer unavailable */
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+#define DMA_STATUS_TJT AR_BIT(3) /* transmit buffer timeout */
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+#define DMA_STATUS_UNF AR_BIT(5) /* transmit underflow */
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+#define DMA_STATUS_RI AR_BIT(6) /* receive interrupt */
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+#define DMA_STATUS_RU AR_BIT(7) /* receive buffer unavailable */
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+#define DMA_STATUS_RPS AR_BIT(8) /* receive process stopped */
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+#define DMA_STATUS_ETI AR_BIT(10) /* early transmit interrupt */
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+#define DMA_STATUS_FBE AR_BIT(13) /* fatal bus interrupt */
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+#define DMA_STATUS_ERI AR_BIT(14) /* early receive interrupt */
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+#define DMA_STATUS_AIS AR_BIT(15) /* abnormal interrupt summary */
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+#define DMA_STATUS_NIS AR_BIT(16) /* normal interrupt summary */
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+#define DMA_STATUS_RS_SHIFT 17 /* receive process state */
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+#define DMA_STATUS_TS_SHIFT 20 /* transmit process state */
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+#define DMA_STATUS_EB_SHIFT 23 /* error bits */
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+
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+#define DMA_CONTROL_SR AR_BIT(1) /* start receive */
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+#define DMA_CONTROL_ST AR_BIT(13) /* start transmit */
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+#define DMA_CONTROL_SF AR_BIT(21) /* store and forward */
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+
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+#endif // __ARUBA_DMA_H__
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+
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+
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+
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+
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+
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diff -Nur linux-2.6.17/drivers/net/ar2313/Makefile linux-2.6.17-owrt/drivers/net/ar2313/Makefile
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--- linux-2.6.17/drivers/net/ar2313/Makefile 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.17-owrt/drivers/net/ar2313/Makefile 2006-06-19 12:25:58.000000000 +0200
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@@ -0,0 +1,5 @@
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+#
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+# Makefile for the AR2313 ethernet driver
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+#
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+
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+obj-$(CONFIG_AR2313) += ar2313.o
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diff -Nur linux-2.6.17/drivers/net/ar2313/platform.h linux-2.6.17-owrt/drivers/net/ar2313/platform.h
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--- linux-2.6.17/drivers/net/ar2313/platform.h 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.17-owrt/drivers/net/ar2313/platform.h 2006-06-19 12:05:29.000000000 +0200
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@@ -0,0 +1,128 @@
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+/********************************************************************************
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+ Title: $Source: platform.h,v $
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+
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+ Author: Dan Steinberg
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+ Copyright Integrated Device Technology 2001
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+
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+ Purpose: AR2313 Register/Bit Definitions
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+
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+ Update:
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+ $Log: platform.h,v $
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+
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+ Notes: See Merlot architecture spec for complete details. Note, all
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+ addresses are virtual addresses in kseg1 (Uncached, Unmapped).
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+
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+********************************************************************************/
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+
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+#ifndef PLATFORM_H
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+#define PLATFORM_H
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+
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+#define BIT(x) (1 << (x))
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+
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+#define RESET_BASE 0xBC003020
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+#define RESET_VALUE 0x00000001
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+
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+/********************************************************************
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+ * Device controller
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+ ********************************************************************/
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+typedef struct {
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+ volatile unsigned int flash0;
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+} DEVICE;
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+
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+#define device (*((volatile DEVICE *) DEV_CTL_BASE))
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+
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+// DDRC register
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+#define DEV_WP (1<<26)
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+
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+/********************************************************************
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+ * DDR controller
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+ ********************************************************************/
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+typedef struct {
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+ volatile unsigned int ddrc0;
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+ volatile unsigned int ddrc1;
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+ volatile unsigned int ddrrefresh;
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+} DDR;
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+
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+#define ddr (*((volatile DDR *) DDR_BASE))
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+
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+// DDRC register
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+#define DDRC_CS(i) ((i&0x3)<<0)
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+#define DDRC_WE (1<<2)
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+
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+/********************************************************************
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+ * Ethernet interfaces
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+ ********************************************************************/
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+#define ETHERNET_BASE 0xB8200000
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+
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+//
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+// New Combo structure for Both Eth0 AND eth1
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+//
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+typedef struct {
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+ volatile unsigned int mac_control; /* 0x00 */
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+ volatile unsigned int mac_addr[2]; /* 0x04 - 0x08*/
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+ volatile unsigned int mcast_table[2]; /* 0x0c - 0x10 */
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+ volatile unsigned int mii_addr; /* 0x14 */
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+ volatile unsigned int mii_data; /* 0x18 */
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+ volatile unsigned int flow_control; /* 0x1c */
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+ volatile unsigned int vlan_tag; /* 0x20 */
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+ volatile unsigned int pad[7]; /* 0x24 - 0x3c */
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+ volatile unsigned int ucast_table[8]; /* 0x40-0x5c */
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+
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+} ETHERNET_STRUCT;
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+
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+/********************************************************************
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+ * Interrupt controller
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+ ********************************************************************/
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+
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+typedef struct {
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+ volatile unsigned int wdog_control; /* 0x08 */
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+ volatile unsigned int wdog_timer; /* 0x0c */
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+ volatile unsigned int misc_status; /* 0x10 */
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+ volatile unsigned int misc_mask; /* 0x14 */
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+ volatile unsigned int global_status; /* 0x18 */
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+ volatile unsigned int reserved; /* 0x1c */
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+ volatile unsigned int reset_control; /* 0x20 */
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+} INTERRUPT;
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+
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+#define interrupt (*((volatile INTERRUPT *) INTERRUPT_BASE))
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+
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+#define INTERRUPT_MISC_TIMER BIT(0)
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+#define INTERRUPT_MISC_AHBPROC BIT(1)
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+#define INTERRUPT_MISC_AHBDMA BIT(2)
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+#define INTERRUPT_MISC_GPIO BIT(3)
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+#define INTERRUPT_MISC_UART BIT(4)
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+#define INTERRUPT_MISC_UARTDMA BIT(5)
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+#define INTERRUPT_MISC_WATCHDOG BIT(6)
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+#define INTERRUPT_MISC_LOCAL BIT(7)
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+
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+#define INTERRUPT_GLOBAL_ETH BIT(2)
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+#define INTERRUPT_GLOBAL_WLAN BIT(3)
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+#define INTERRUPT_GLOBAL_MISC BIT(4)
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+#define INTERRUPT_GLOBAL_ITIMER BIT(5)
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+
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+/********************************************************************
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+ * DMA controller
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+ ********************************************************************/
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+#define DMA_BASE 0xB8201000
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+
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+typedef struct {
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+ volatile unsigned int bus_mode; /* 0x00 (CSR0) */
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+ volatile unsigned int xmt_poll; /* 0x04 (CSR1) */
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+ volatile unsigned int rcv_poll; /* 0x08 (CSR2) */
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+ volatile unsigned int rcv_base; /* 0x0c (CSR3) */
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+ volatile unsigned int xmt_base; /* 0x10 (CSR4) */
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+ volatile unsigned int status; /* 0x14 (CSR5) */
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+ volatile unsigned int control; /* 0x18 (CSR6) */
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+ volatile unsigned int intr_ena; /* 0x1c (CSR7) */
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+ volatile unsigned int rcv_missed; /* 0x20 (CSR8) */
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+ volatile unsigned int reserved[11]; /* 0x24-0x4c (CSR9-19) */
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+ volatile unsigned int cur_tx_buf_addr; /* 0x50 (CSR20) */
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+ volatile unsigned int cur_rx_buf_addr; /* 0x50 (CSR21) */
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+} DMA;
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+
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+#define dma (*((volatile DMA *) DMA_BASE))
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+
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+// macro to convert from virtual to physical address
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+#define phys_addr(x) (x & 0x1fffffff)
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+
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+#endif /* PLATFORM_H */
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diff -Nur linux-2.6.17/drivers/net/Kconfig linux-2.6.17-owrt/drivers/net/Kconfig
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--- linux-2.6.17/drivers/net/Kconfig 2006-06-19 12:05:01.000000000 +0200
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+++ linux-2.6.17-owrt/drivers/net/Kconfig 2006-06-19 12:26:35.000000000 +0200
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@@ -310,6 +310,12 @@
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source "drivers/net/arm/Kconfig"
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+config AR2313
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+ tristate "AR2313 Ethernet support"
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+ depends on NET_ETHERNET && MACH_ARUBA
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+ help
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+ Support for the AR2313 Ethernet part on Aruba AP60/61
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+
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config IDT_RC32434_ETH
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tristate "IDT RC32434 Local Ethernet support"
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depends on NET_ETHERNET
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diff -Nur linux-2.6.17/drivers/net/Makefile linux-2.6.17-owrt/drivers/net/Makefile
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--- linux-2.6.17/drivers/net/Makefile 2006-06-19 12:05:01.000000000 +0200
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+++ linux-2.6.17-owrt/drivers/net/Makefile 2006-06-19 12:27:02.000000000 +0200
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@@ -12,6 +12,7 @@
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obj-$(CONFIG_CHELSIO_T1) += chelsio/
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obj-$(CONFIG_BONDING) += bonding/
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obj-$(CONFIG_GIANFAR) += gianfar_driver.o
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+obj-$(CONFIG_AR2313) += ar2313/
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gianfar_driver-objs := gianfar.o \
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gianfar_ethtool.o \
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