Linux-2.6.12-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!
diff --git a/drivers/usb/atm/usb_atm.h b/drivers/usb/atm/usb_atm.h
new file mode 100644
index 0000000..cf8c532
--- /dev/null
+++ b/drivers/usb/atm/usb_atm.h
@@ -0,0 +1,176 @@
+/******************************************************************************
+ * usb_atm.h - Generic USB xDSL driver core
+ *
+ * Copyright (C) 2001, Alcatel
+ * Copyright (C) 2003, Duncan Sands, SolNegro, Josep Comas
+ * Copyright (C) 2004, David Woodhouse
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ ******************************************************************************/
+
+#include <linux/config.h>
+#include <linux/list.h>
+#include <linux/kref.h>
+#include <linux/atm.h>
+#include <linux/atmdev.h>
+#include <asm/semaphore.h>
+
+/*
+#define DEBUG
+#define VERBOSE_DEBUG
+*/
+
+#if !defined (DEBUG) && defined (CONFIG_USB_DEBUG)
+# define DEBUG
+#endif
+
+#include <linux/usb.h>
+
+#ifdef DEBUG
+#define UDSL_ASSERT(x) BUG_ON(!(x))
+#else
+#define UDSL_ASSERT(x) do { if (!(x)) warn("failed assertion '" #x "' at line %d", __LINE__); } while(0)
+#endif
+
+#define UDSL_MAX_RCV_URBS 4
+#define UDSL_MAX_SND_URBS 4
+#define UDSL_MAX_RCV_BUFS 8
+#define UDSL_MAX_SND_BUFS 8
+#define UDSL_MAX_RCV_BUF_SIZE 1024 /* ATM cells */
+#define UDSL_MAX_SND_BUF_SIZE 1024 /* ATM cells */
+#define UDSL_DEFAULT_RCV_URBS 2
+#define UDSL_DEFAULT_SND_URBS 2
+#define UDSL_DEFAULT_RCV_BUFS 4
+#define UDSL_DEFAULT_SND_BUFS 4
+#define UDSL_DEFAULT_RCV_BUF_SIZE 64 /* ATM cells */
+#define UDSL_DEFAULT_SND_BUF_SIZE 64 /* ATM cells */
+
+#define ATM_CELL_HEADER (ATM_CELL_SIZE - ATM_CELL_PAYLOAD)
+#define UDSL_NUM_CELLS(x) (((x) + ATM_AAL5_TRAILER + ATM_CELL_PAYLOAD - 1) / ATM_CELL_PAYLOAD)
+
+/* receive */
+
+struct udsl_receive_buffer {
+ struct list_head list;
+ unsigned char *base;
+ unsigned int filled_cells;
+};
+
+struct udsl_receiver {
+ struct list_head list;
+ struct udsl_receive_buffer *buffer;
+ struct urb *urb;
+ struct udsl_instance_data *instance;
+};
+
+struct udsl_vcc_data {
+ /* vpi/vci lookup */
+ struct list_head list;
+ short vpi;
+ int vci;
+ struct atm_vcc *vcc;
+
+ /* raw cell reassembly */
+ struct sk_buff *sarb;
+};
+
+/* send */
+
+struct udsl_send_buffer {
+ struct list_head list;
+ unsigned char *base;
+ unsigned char *free_start;
+ unsigned int free_cells;
+};
+
+struct udsl_sender {
+ struct list_head list;
+ struct udsl_send_buffer *buffer;
+ struct urb *urb;
+ struct udsl_instance_data *instance;
+};
+
+struct udsl_control {
+ struct atm_skb_data atm_data;
+ unsigned int num_cells;
+ unsigned int num_entire;
+ unsigned int pdu_padding;
+ unsigned char aal5_trailer[ATM_AAL5_TRAILER];
+};
+
+#define UDSL_SKB(x) ((struct udsl_control *)(x)->cb)
+
+/* main driver data */
+
+enum udsl_status {
+ UDSL_NO_FIRMWARE,
+ UDSL_LOADING_FIRMWARE,
+ UDSL_LOADED_FIRMWARE
+};
+
+struct udsl_instance_data {
+ struct kref refcount;
+ struct semaphore serialize;
+
+ /* USB device part */
+ struct usb_device *usb_dev;
+ char description[64];
+ int data_endpoint;
+ int snd_padding;
+ int rcv_padding;
+ const char *driver_name;
+
+ /* ATM device part */
+ struct atm_dev *atm_dev;
+ struct list_head vcc_list;
+
+ /* firmware */
+ int (*firmware_wait) (struct udsl_instance_data *);
+ enum udsl_status status;
+ wait_queue_head_t firmware_waiters;
+
+ /* receive */
+ struct udsl_receiver receivers[UDSL_MAX_RCV_URBS];
+ struct udsl_receive_buffer receive_buffers[UDSL_MAX_RCV_BUFS];
+
+ spinlock_t receive_lock;
+ struct list_head spare_receivers;
+ struct list_head filled_receive_buffers;
+
+ struct tasklet_struct receive_tasklet;
+ struct list_head spare_receive_buffers;
+
+ /* send */
+ struct udsl_sender senders[UDSL_MAX_SND_URBS];
+ struct udsl_send_buffer send_buffers[UDSL_MAX_SND_BUFS];
+
+ struct sk_buff_head sndqueue;
+
+ spinlock_t send_lock;
+ struct list_head spare_senders;
+ struct list_head spare_send_buffers;
+
+ struct tasklet_struct send_tasklet;
+ struct sk_buff *current_skb; /* being emptied */
+ struct udsl_send_buffer *current_buffer; /* being filled */
+ struct list_head filled_send_buffers;
+};
+
+extern int udsl_instance_setup(struct usb_device *dev,
+ struct udsl_instance_data *instance);
+extern void udsl_instance_disconnect(struct udsl_instance_data *instance);
+extern void udsl_get_instance(struct udsl_instance_data *instance);
+extern void udsl_put_instance(struct udsl_instance_data *instance);