Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 203 insertions, 0 deletions

diff --git a/drivers/net/mvme147.c b/drivers/net/mvme147.c
new file mode 100644
index 0000000..56a82d8
--- /dev/null
+++ b/drivers/net/mvme147.c
@@ -0,0 +1,203 @@
+/* mvme147.c  : the  Linux/mvme147/lance ethernet driver
+ *
+ * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
+ * Based on the Sun Lance driver and the NetBSD HP Lance driver
+ * Uses the generic 7990.c LANCE code.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+/* Used for the temporal inet entries and routing */
+#include <linux/socket.h>
+#include <linux/route.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/mvme147hw.h>
+
+/* We have 16834 bytes of RAM for the init block and buffers. This places
+ * an upper limit on the number of buffers we can use. NetBSD uses 8 Rx
+ * buffers and 2 Tx buffers.
+ */
+#define LANCE_LOG_TX_BUFFERS 1
+#define LANCE_LOG_RX_BUFFERS 3
+
+#include "7990.h"                                 /* use generic LANCE code */
+
+/* Our private data structure */
+struct m147lance_private {
+	struct lance_private lance;
+	unsigned long ram;
+};
+
+/* function prototypes... This is easy because all the grot is in the
+ * generic LANCE support. All we have to support is probing for boards,
+ * plus board-specific init, open and close actions.
+ * Oh, and we need to tell the generic code how to read and write LANCE registers...
+ */
+static int m147lance_open(struct net_device *dev);
+static int m147lance_close(struct net_device *dev);
+static void m147lance_writerap(struct lance_private *lp, unsigned short value);
+static void m147lance_writerdp(struct lance_private *lp, unsigned short value);
+static unsigned short m147lance_readrdp(struct lance_private *lp);
+
+typedef void (*writerap_t)(void *, unsigned short);
+typedef void (*writerdp_t)(void *, unsigned short);
+typedef unsigned short (*readrdp_t)(void *);
+
+/* Initialise the one and only on-board 7990 */
+struct net_device * __init mvme147lance_probe(int unit)
+{
+	struct net_device *dev;
+	static int called;
+	static const char name[] = "MVME147 LANCE";
+	struct m147lance_private *lp;
+	u_long *addr;
+	u_long address;
+	int err;
+
+	if (!MACH_IS_MVME147 || called)
+		return ERR_PTR(-ENODEV);
+	called++;
+
+	dev = alloc_etherdev(sizeof(struct m147lance_private));
+	if (!dev)
+		return ERR_PTR(-ENOMEM);
+
+	if (unit >= 0)
+		sprintf(dev->name, "eth%d", unit);
+
+	SET_MODULE_OWNER(dev);
+
+	/* Fill the dev fields */
+	dev->base_addr = (unsigned long)MVME147_LANCE_BASE;
+	dev->open = &m147lance_open;
+	dev->stop = &m147lance_close;
+	dev->hard_start_xmit = &lance_start_xmit;
+	dev->get_stats = &lance_get_stats;
+	dev->set_multicast_list = &lance_set_multicast;
+	dev->tx_timeout = &lance_tx_timeout;
+	dev->dma = 0;
+
+	addr=(u_long *)ETHERNET_ADDRESS;
+	address = *addr;
+	dev->dev_addr[0]=0x08;
+	dev->dev_addr[1]=0x00;
+	dev->dev_addr[2]=0x3e;
+	address=address>>8;
+	dev->dev_addr[5]=address&0xff;
+	address=address>>8;
+	dev->dev_addr[4]=address&0xff;
+	address=address>>8;
+	dev->dev_addr[3]=address&0xff;
+
+	printk("%s: MVME147 at 0x%08lx, irq %d, Hardware Address %02x:%02x:%02x:%02x:%02x:%02x\n",
+		dev->name, dev->base_addr, MVME147_LANCE_IRQ,
+		dev->dev_addr[0],
+		dev->dev_addr[1], dev->dev_addr[2],
+		dev->dev_addr[3], dev->dev_addr[4],
+		dev->dev_addr[5]);
+
+	lp = (struct m147lance_private *)dev->priv;
+	lp->ram = __get_dma_pages(GFP_ATOMIC, 3);	/* 16K */
+	if (!lp->ram)
+	{
+		printk("%s: No memory for LANCE buffers\n", dev->name);
+		free_netdev(dev);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	lp->lance.name = (char*)name;                   /* discards const, shut up gcc */
+	lp->lance.base = dev->base_addr;
+	lp->lance.init_block = (struct lance_init_block *)(lp->ram); /* CPU addr */
+	lp->lance.lance_init_block = (struct lance_init_block *)(lp->ram);                 /* LANCE addr of same RAM */
+	lp->lance.busmaster_regval = LE_C3_BSWP;        /* we're bigendian */
+	lp->lance.irq = MVME147_LANCE_IRQ;
+	lp->lance.writerap = (writerap_t)m147lance_writerap;
+	lp->lance.writerdp = (writerdp_t)m147lance_writerdp;
+	lp->lance.readrdp = (readrdp_t)m147lance_readrdp;
+	lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
+	lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
+	lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;
+	lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;
+
+	err = register_netdev(dev);
+	if (err) {
+		free_pages(lp->ram, 3);
+		free_netdev(dev);
+		return ERR_PTR(err);
+	}
+
+	return dev;
+}
+
+static void m147lance_writerap(struct lance_private *lp, unsigned short value)
+{
+	out_be16(lp->base + LANCE_RAP, value);
+}
+
+static void m147lance_writerdp(struct lance_private *lp, unsigned short value)
+{
+	out_be16(lp->base + LANCE_RDP, value);
+}
+
+static unsigned short m147lance_readrdp(struct lance_private *lp)
+{
+	return in_be16(lp->base + LANCE_RDP);
+}
+
+static int m147lance_open(struct net_device *dev)
+{
+	int status;
+
+	status = lance_open(dev);                 /* call generic lance open code */
+	if (status)
+		return status;
+	/* enable interrupts at board level. */
+	m147_pcc->lan_cntrl=0;       /* clear the interrupts (if any) */
+	m147_pcc->lan_cntrl=0x08 | 0x04;     /* Enable irq 4 */
+
+	return 0;
+}
+
+static int m147lance_close(struct net_device *dev)
+{
+	/* disable interrupts at boardlevel */
+	m147_pcc->lan_cntrl=0x0; /* disable interrupts */
+	lance_close(dev);
+	return 0;
+}
+
+#ifdef MODULE
+MODULE_LICENSE("GPL");
+
+static struct net_device *dev_mvme147_lance;
+int init_module(void)
+{
+	dev_mvme147_lance = mvme147lance_probe(-1);
+	if (IS_ERR(dev_mvme147_lance))
+		return PTR_ERR(dev_mvme147_lance);
+	return 0;
+}
+
+void cleanup_module(void)
+{
+	struct m147lance_private *lp = dev_mvme147_lance->priv;
+	unregister_netdev(dev_mvme147_lance);
+	free_pages(lp->ram, 3);
+	free_netdev(dev_mvme147_lance);
+}
+
+#endif /* MODULE */