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, 256 insertions, 0 deletions

diff --git a/drivers/net/hydra.c b/drivers/net/hydra.c
new file mode 100644
index 0000000..6e0ca73
--- /dev/null
+++ b/drivers/net/hydra.c
@@ -0,0 +1,256 @@
+/* New Hydra driver using generic 8390 core */
+/* Based on old hydra driver by Topi Kanerva (topi@susanna.oulu.fi) */
+
+/* This file is subject to the terms and conditions of the GNU General      */
+/* Public License.  See the file COPYING in the main directory of the       */
+/* Linux distribution for more details.                                     */
+
+/* Peter De Schrijver (p2@mind.be) */
+/* Oldenburg 2000 */
+
+/* The Amiganet is a Zorro-II board made by Hydra Systems. It contains a    */
+/* NS8390 NIC (network interface controller) clone, 16 or 64K on-board RAM  */
+/* and 10BASE-2 (thin coax) and AUI connectors.                             */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/amigaints.h>
+#include <asm/amigahw.h>
+#include <linux/zorro.h>
+
+#include "8390.h"
+
+#define NE_EN0_DCFG     (0x0e*2)
+
+#define NESM_START_PG   0x0    /* First page of TX buffer */
+#define NESM_STOP_PG    0x40    /* Last page +1 of RX ring */
+
+#define HYDRA_NIC_BASE 0xffe1
+#define HYDRA_ADDRPROM 0xffc0
+#define HYDRA_VERSION "v3.0alpha"
+
+#define WORDSWAP(a)     ((((a)>>8)&0xff) | ((a)<<8))
+
+
+static int __devinit hydra_init_one(struct zorro_dev *z,
+				    const struct zorro_device_id *ent);
+static int __devinit hydra_init(struct zorro_dev *z);
+static int hydra_open(struct net_device *dev);
+static int hydra_close(struct net_device *dev);
+static void hydra_reset_8390(struct net_device *dev);
+static void hydra_get_8390_hdr(struct net_device *dev,
+			       struct e8390_pkt_hdr *hdr, int ring_page);
+static void hydra_block_input(struct net_device *dev, int count,
+			      struct sk_buff *skb, int ring_offset);
+static void hydra_block_output(struct net_device *dev, int count,
+			       const unsigned char *buf, int start_page);
+static void __devexit hydra_remove_one(struct zorro_dev *z);
+
+static struct zorro_device_id hydra_zorro_tbl[] __devinitdata = {
+    { ZORRO_PROD_HYDRA_SYSTEMS_AMIGANET },
+    { 0 }
+};
+
+static struct zorro_driver hydra_driver = {
+    .name	= "hydra",
+    .id_table	= hydra_zorro_tbl,
+    .probe	= hydra_init_one,
+    .remove	= __devexit_p(hydra_remove_one),
+};
+
+static int __devinit hydra_init_one(struct zorro_dev *z,
+				    const struct zorro_device_id *ent)
+{
+    int err;
+
+    if (!request_mem_region(z->resource.start, 0x10000, "Hydra"))
+	return -EBUSY;
+    if ((err = hydra_init(z))) {
+	release_mem_region(z->resource.start, 0x10000);
+	return -EBUSY;
+    }
+    return 0;
+}
+
+static int __devinit hydra_init(struct zorro_dev *z)
+{
+    struct net_device *dev;
+    unsigned long board = ZTWO_VADDR(z->resource.start);
+    unsigned long ioaddr = board+HYDRA_NIC_BASE;
+    const char name[] = "NE2000";
+    int start_page, stop_page;
+    int j;
+    int err;
+
+    static u32 hydra_offsets[16] = {
+	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e,
+	0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
+    };
+
+    dev = alloc_ei_netdev();
+    if (!dev)
+	return -ENOMEM;
+    SET_MODULE_OWNER(dev);
+
+    for(j = 0; j < ETHER_ADDR_LEN; j++)
+	dev->dev_addr[j] = *((u8 *)(board + HYDRA_ADDRPROM + 2*j));
+
+    /* We must set the 8390 for word mode. */
+    z_writeb(0x4b, ioaddr + NE_EN0_DCFG);
+    start_page = NESM_START_PG;
+    stop_page = NESM_STOP_PG;
+
+    dev->base_addr = ioaddr;
+    dev->irq = IRQ_AMIGA_PORTS;
+
+    /* Install the Interrupt handler */
+    if (request_irq(IRQ_AMIGA_PORTS, ei_interrupt, SA_SHIRQ, "Hydra Ethernet",
+		    dev)) {
+	free_netdev(dev);
+	return -EAGAIN;
+    }
+
+    ei_status.name = name;
+    ei_status.tx_start_page = start_page;
+    ei_status.stop_page = stop_page;
+    ei_status.word16 = 1;
+    ei_status.bigendian = 1;
+
+    ei_status.rx_start_page = start_page + TX_PAGES;
+
+    ei_status.reset_8390 = &hydra_reset_8390;
+    ei_status.block_input = &hydra_block_input;
+    ei_status.block_output = &hydra_block_output;
+    ei_status.get_8390_hdr = &hydra_get_8390_hdr;
+    ei_status.reg_offset = hydra_offsets;
+    dev->open = &hydra_open;
+    dev->stop = &hydra_close;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+    dev->poll_controller = ei_poll;
+#endif
+
+    NS8390_init(dev, 0);
+
+    err = register_netdev(dev);
+    if (err) {
+	free_irq(IRQ_AMIGA_PORTS, dev);
+	free_netdev(dev);
+	return err;
+    }
+
+    zorro_set_drvdata(z, dev);
+
+    printk(KERN_INFO "%s: Hydra at 0x%08lx, address "
+	   "%02x:%02x:%02x:%02x:%02x:%02x (hydra.c " HYDRA_VERSION ")\n",
+	   dev->name, z->resource.start, dev->dev_addr[0], dev->dev_addr[1],
+	   dev->dev_addr[2], dev->dev_addr[3], dev->dev_addr[4],
+	   dev->dev_addr[5]);
+
+    return 0;
+}
+
+static int hydra_open(struct net_device *dev)
+{
+    ei_open(dev);
+    return 0;
+}
+
+static int hydra_close(struct net_device *dev)
+{
+    if (ei_debug > 1)
+	printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
+    ei_close(dev);
+    return 0;
+}
+
+static void hydra_reset_8390(struct net_device *dev)
+{
+    printk(KERN_INFO "Hydra hw reset not there\n");
+}
+
+static void hydra_get_8390_hdr(struct net_device *dev,
+			       struct e8390_pkt_hdr *hdr, int ring_page)
+{
+    int nic_base = dev->base_addr;
+    short *ptrs;
+    unsigned long hdr_start= (nic_base-HYDRA_NIC_BASE) +
+			     ((ring_page - NESM_START_PG)<<8);
+    ptrs = (short *)hdr;
+
+    *(ptrs++) = z_readw(hdr_start);
+    *((short *)hdr) = WORDSWAP(*((short *)hdr));
+    hdr_start += 2;
+    *(ptrs++) = z_readw(hdr_start);
+    *((short *)hdr+1) = WORDSWAP(*((short *)hdr+1));
+}
+
+static void hydra_block_input(struct net_device *dev, int count,
+			      struct sk_buff *skb, int ring_offset)
+{
+    unsigned long nic_base = dev->base_addr;
+    unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
+    unsigned long xfer_start = mem_base + ring_offset - (NESM_START_PG<<8);
+
+    if (count&1)
+	count++;
+
+    if (xfer_start+count >  mem_base + (NESM_STOP_PG<<8)) {
+	int semi_count = (mem_base + (NESM_STOP_PG<<8)) - xfer_start;
+
+	z_memcpy_fromio(skb->data,xfer_start,semi_count);
+	count -= semi_count;
+	z_memcpy_fromio(skb->data+semi_count, mem_base, count);
+    } else
+	z_memcpy_fromio(skb->data, xfer_start,count);
+
+}
+
+static void hydra_block_output(struct net_device *dev, int count,
+			       const unsigned char *buf, int start_page)
+{
+    unsigned long nic_base = dev->base_addr;
+    unsigned long mem_base = nic_base - HYDRA_NIC_BASE;
+
+    if (count&1)
+	count++;
+
+    z_memcpy_toio(mem_base+((start_page - NESM_START_PG)<<8), buf, count);
+}
+
+static void __devexit hydra_remove_one(struct zorro_dev *z)
+{
+    struct net_device *dev = zorro_get_drvdata(z);
+
+    unregister_netdev(dev);
+    free_irq(IRQ_AMIGA_PORTS, dev);
+    release_mem_region(ZTWO_PADDR(dev->base_addr)-HYDRA_NIC_BASE, 0x10000);
+    free_netdev(dev);
+}
+
+static int __init hydra_init_module(void)
+{
+    return zorro_module_init(&hydra_driver);
+}
+
+static void __exit hydra_cleanup_module(void)
+{
+    zorro_unregister_driver(&hydra_driver);
+}
+
+module_init(hydra_init_module);
+module_exit(hydra_cleanup_module);
+
+MODULE_LICENSE("GPL");