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!

1 files changed, 163 insertions, 0 deletions

diff --git a/drivers/net/irda/irda-usb.h b/drivers/net/irda/irda-usb.h
new file mode 100644
index 000000000000..bd8f66542322
--- /dev/null
+++ b/drivers/net/irda/irda-usb.h
@@ -0,0 +1,163 @@
+/*****************************************************************************
+ *
+ * Filename:      irda-usb.h
+ * Version:       0.9b
+ * Description:   IrDA-USB Driver
+ * Status:        Experimental 
+ * Author:        Dag Brattli <dag@brattli.net>
+ *
+ *      Copyright (C) 2001, Roman Weissgaerber <weissg@vienna.at>
+ *      Copyright (C) 2000, Dag Brattli <dag@brattli.net>
+ *      Copyright (C) 2001, Jean Tourrilhes <jt@hpl.hp.com>
+ *          
+ *      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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *****************************************************************************/
+
+#include <linux/time.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irda_device.h>      /* struct irlap_cb */
+
+#define RX_COPY_THRESHOLD 200
+#define IRDA_USB_MAX_MTU 2051
+#define IRDA_USB_SPEED_MTU 64           /* Weird, but work like this */
+
+/* Maximum number of active URB on the Rx path
+ * This is the amount of buffers the we keep between the USB harware and the
+ * IrDA stack.
+ *
+ * Note : the network layer does also queue the packets between us and the
+ * IrDA stack, and is actually pretty fast and efficient in doing that.
+ * Therefore, we don't need to have a large number of URBs, and we can
+ * perfectly live happy with only one. We certainly don't need to keep the
+ * full IrTTP window around here...
+ * I repeat for those who have trouble to understand : 1 URB is plenty
+ * good enough to handle back-to-back (brickwalled) frames. I tried it,
+ * it works (it's the hardware that has trouble doing it).
+ *
+ * Having 2 URBs would allow the USB stack to process one URB while we take
+ * care of the other and then swap the URBs...
+ * On the other hand, increasing the number of URB will have penalities
+ * in term of latency and will interact with the link management in IrLAP...
+ * Jean II */
+#define IU_MAX_ACTIVE_RX_URBS   1       /* Don't touch !!! */
+
+/* When a Rx URB is passed back to us, we can't reuse it immediately,
+ * because it may still be referenced by the USB layer. Therefore we
+ * need to keep one extra URB in the Rx path.
+ * Jean II */
+#define IU_MAX_RX_URBS  (IU_MAX_ACTIVE_RX_URBS + 1)
+
+/* Various ugly stuff to try to workaround generic problems */
+/* Send speed command in case of timeout, just for trying to get things sane */
+#define IU_BUG_KICK_TIMEOUT
+/* Show the USB class descriptor */
+#undef IU_DUMP_CLASS_DESC 
+/* Assume a minimum round trip latency for USB transfer (in us)...
+ * USB transfer are done in the next USB slot if there is no traffic
+ * (1/19 msec) and is done at 12 Mb/s :
+ * Waiting for slot + tx = (53us + 16us) * 2 = 137us minimum.
+ * Rx notification will only be done at the end of the USB frame period :
+ * OHCI : frame period = 1ms
+ * UHCI : frame period = 1ms, but notification can take 2 or 3 ms :-(
+ * EHCI : frame period = 125us */
+#define IU_USB_MIN_RTT          500     /* This should be safe in most cases */
+
+/* Inbound header */
+#define MEDIA_BUSY    0x80
+
+#define SPEED_2400    0x01
+#define SPEED_9600    0x02
+#define SPEED_19200   0x03
+#define SPEED_38400   0x04
+#define SPEED_57600   0x05
+#define SPEED_115200  0x06
+#define SPEED_576000  0x07
+#define SPEED_1152000 0x08
+#define SPEED_4000000 0x09
+
+/* Basic capabilities */
+#define IUC_DEFAULT     0x00    /* Basic device compliant with 1.0 spec */
+/* Main bugs */
+#define IUC_SPEED_BUG   0x01    /* Device doesn't set speed after the frame */
+#define IUC_NO_WINDOW   0x02    /* Device doesn't behave with big Rx window */
+#define IUC_NO_TURN     0x04    /* Device doesn't do turnaround by itself */
+/* Not currently used */
+#define IUC_SIR_ONLY    0x08    /* Device doesn't behave at FIR speeds */
+#define IUC_SMALL_PKT   0x10    /* Device doesn't behave with big Rx packets */
+#define IUC_MAX_WINDOW  0x20    /* Device underestimate the Rx window */
+#define IUC_MAX_XBOFS   0x40    /* Device need more xbofs than advertised */
+
+/* USB class definitions */
+#define USB_IRDA_HEADER   0x01
+#define USB_CLASS_IRDA    0x02 /* USB_CLASS_APP_SPEC subclass */ 
+#define USB_DT_IRDA       0x21
+
+struct irda_class_desc {
+        __u8  bLength;
+        __u8  bDescriptorType;
+        __u16 bcdSpecRevision;
+        __u8  bmDataSize;
+        __u8  bmWindowSize;
+        __u8  bmMinTurnaroundTime;
+        __u16 wBaudRate;
+        __u8  bmAdditionalBOFs;
+        __u8  bIrdaRateSniff;
+        __u8  bMaxUnicastList;
+} __attribute__ ((packed));
+
+/* class specific interface request to get the IrDA-USB class descriptor
+ * (6.2.5, USB-IrDA class spec 1.0) */
+
+#define IU_REQ_GET_CLASS_DESC   0x06
+
+struct irda_usb_cb {
+        struct irda_class_desc *irda_desc;
+        struct usb_device *usbdev;      /* init: probe_irda */
+        struct usb_interface *usbintf;  /* init: probe_irda */
+        int netopen;                    /* Device is active for network */
+        int present;                    /* Device is present on the bus */
+        __u32 capability;               /* Capability of the hardware */
+        __u8  bulk_in_ep;               /* Rx Endpoint assignments */
+        __u8  bulk_out_ep;              /* Tx Endpoint assignments */
+        __u16 bulk_out_mtu;             /* Max Tx packet size in bytes */
+        __u8  bulk_int_ep;              /* Interrupt Endpoint assignments */
+
+        wait_queue_head_t wait_q;       /* for timeouts */
+
+        struct urb *rx_urb[IU_MAX_RX_URBS];     /* URBs used to receive data frames */
+        struct urb *idle_rx_urb;        /* Pointer to idle URB in Rx path */
+        struct urb *tx_urb;             /* URB used to send data frames */
+        struct urb *speed_urb;          /* URB used to send speed commands */
+        
+        struct net_device *netdev;      /* Yes! we are some kind of netdev. */
+        struct net_device_stats stats;
+        struct irlap_cb   *irlap;       /* The link layer we are binded to */
+        struct qos_info qos;
+        hashbin_t *tx_list;             /* Queued transmit skb's */
+        char *speed_buff;               /* Buffer for speed changes */
+
+        struct timeval stamp;
+        struct timeval now;
+
+        spinlock_t lock;                /* For serializing operations */
+
+        __u16 xbofs;                    /* Current xbofs setting */
+        __s16 new_xbofs;                /* xbofs we need to set */
+        __u32 speed;                    /* Current speed */
+        __s32 new_speed;                /* speed we need to set */
+};
+