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, 301 insertions, 0 deletions

diff --git a/include/net/irda/irda_device.h b/include/net/irda/irda_device.h
new file mode 100644
index 00000000000..3b216f186f1
--- /dev/null
+++ b/include/net/irda/irda_device.h
@@ -0,0 +1,301 @@
+/*********************************************************************
+ *                
+ * Filename:      irda_device.h
+ * Version:       0.9
+ * Description:   Contains various declarations used by the drivers
+ * Status:        Experimental.
+ * Author:        Dag Brattli <dagb@cs.uit.no>
+ * Created at:    Tue Apr 14 12:41:42 1998
+ * Modified at:   Mon Mar 20 09:08:57 2000
+ * Modified by:   Dag Brattli <dagb@cs.uit.no>
+ * 
+ *     Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
+ *     Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
+ *     Copyright (c) 2000-2002 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., 59 Temple Place, Suite 330, Boston, 
+ *     MA 02111-1307 USA
+ *     
+ ********************************************************************/
+
+/*
+ * This header contains all the IrDA definitions a driver really
+ * needs, and therefore the driver should not need to include
+ * any other IrDA headers - Jean II
+ */
+
+#ifndef IRDA_DEVICE_H
+#define IRDA_DEVICE_H
+
+#include <linux/config.h>
+#include <linux/tty.h>
+#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <linux/skbuff.h>		/* struct sk_buff */
+#include <linux/irda.h>
+#include <linux/types.h>
+
+#include <net/pkt_sched.h>
+#include <net/irda/irda.h>
+#include <net/irda/qos.h>		/* struct qos_info */
+#include <net/irda/irqueue.h>		/* irda_queue_t */
+
+/* A few forward declarations (to make compiler happy) */
+struct irlap_cb;
+
+/* Some non-standard interface flags (should not conflict with any in if.h) */
+#define IFF_SIR 	0x0001 /* Supports SIR speeds */
+#define IFF_MIR 	0x0002 /* Supports MIR speeds */
+#define IFF_FIR 	0x0004 /* Supports FIR speeds */
+#define IFF_VFIR        0x0008 /* Supports VFIR speeds */
+#define IFF_PIO   	0x0010 /* Supports PIO transfer of data */
+#define IFF_DMA		0x0020 /* Supports DMA transfer of data */
+#define IFF_SHM         0x0040 /* Supports shared memory data transfers */
+#define IFF_DONGLE      0x0080 /* Interface has a dongle attached */
+#define IFF_AIR         0x0100 /* Supports Advanced IR (AIR) standards */
+
+#define IO_XMIT 0x01
+#define IO_RECV 0x02
+
+typedef enum {
+	IRDA_IRLAP, /* IrDA mode, and deliver to IrLAP */
+	IRDA_RAW,   /* IrDA mode */
+	SHARP_ASK,
+	TV_REMOTE,  /* Also known as Consumer Electronics IR */
+} INFRARED_MODE;
+
+typedef enum {
+	IRDA_TASK_INIT,        /* All tasks are initialized with this state */
+	IRDA_TASK_DONE,        /* Signals that the task is finished */
+	IRDA_TASK_WAIT,
+	IRDA_TASK_WAIT1,
+	IRDA_TASK_WAIT2,
+	IRDA_TASK_WAIT3,
+	IRDA_TASK_CHILD_INIT,  /* Initializing child task */
+	IRDA_TASK_CHILD_WAIT,  /* Waiting for child task to finish */
+	IRDA_TASK_CHILD_DONE   /* Child task is finished */
+} IRDA_TASK_STATE;
+
+struct irda_task;
+typedef int (*IRDA_TASK_CALLBACK) (struct irda_task *task);
+
+struct irda_task {
+	irda_queue_t q;
+	magic_t magic;
+
+	IRDA_TASK_STATE state;
+	IRDA_TASK_CALLBACK function;
+	IRDA_TASK_CALLBACK finished;
+
+	struct irda_task *parent;
+	struct timer_list timer;
+
+	void *instance; /* Instance being called */
+	void *param;    /* Parameter to be used by instance */
+};
+
+/* Dongle info */
+struct dongle_reg;
+typedef struct {
+	struct dongle_reg *issue;     /* Registration info */
+	struct net_device *dev;           /* Device we are attached to */
+	struct irda_task *speed_task; /* Task handling speed change */
+	struct irda_task *reset_task; /* Task handling reset */
+	__u32 speed;                  /* Current speed */
+
+	/* Callbacks to the IrDA device driver */
+	int (*set_mode)(struct net_device *, int mode);
+	int (*read)(struct net_device *dev, __u8 *buf, int len);
+	int (*write)(struct net_device *dev, __u8 *buf, int len);
+	int (*set_dtr_rts)(struct net_device *dev, int dtr, int rts);
+} dongle_t;
+
+/* Dongle registration info */
+struct dongle_reg {
+	irda_queue_t q;         /* Must be first */
+	IRDA_DONGLE type;
+
+	void (*open)(dongle_t *dongle, struct qos_info *qos);
+	void (*close)(dongle_t *dongle);
+	int  (*reset)(struct irda_task *task);
+	int  (*change_speed)(struct irda_task *task);
+	struct module *owner;
+};
+
+/* 
+ * Per-packet information we need to hide inside sk_buff 
+ * (must not exceed 48 bytes, check with struct sk_buff) 
+ */
+struct irda_skb_cb {
+	magic_t magic;       /* Be sure that we can trust the information */
+	__u32   next_speed;  /* The Speed to be set *after* this frame */
+	__u16   mtt;         /* Minimum turn around time */
+	__u16   xbofs;       /* Number of xbofs required, used by SIR mode */
+	__u16   next_xbofs;  /* Number of xbofs required *after* this frame */
+	void    *context;    /* May be used by drivers */
+	void    (*destructor)(struct sk_buff *skb); /* Used for flow control */
+	__u16   xbofs_delay; /* Number of xbofs used for generating the mtt */
+	__u8    line;        /* Used by IrCOMM in IrLPT mode */
+};
+
+/* Chip specific info */
+typedef struct {
+	int cfg_base;         /* Config register IO base */
+        int sir_base;         /* SIR IO base */
+	int fir_base;         /* FIR IO base */
+	int mem_base;         /* Shared memory base */
+        int sir_ext;          /* Length of SIR iobase */
+	int fir_ext;          /* Length of FIR iobase */
+        int irq, irq2;        /* Interrupts used */
+        int dma, dma2;        /* DMA channel(s) used */
+        int fifo_size;        /* FIFO size */
+        int irqflags;         /* interrupt flags (ie, SA_SHIRQ|SA_INTERRUPT) */
+	int direction;        /* Link direction, used by some FIR drivers */
+	int enabled;          /* Powered on? */
+	int suspended;        /* Suspended by APM */
+	__u32 speed;          /* Currently used speed */
+	__u32 new_speed;      /* Speed we must change to when Tx is finished */
+	int dongle_id;        /* Dongle or transceiver currently used */
+} chipio_t;
+
+/* IO buffer specific info (inspired by struct sk_buff) */
+typedef struct {
+	int state;            /* Receiving state (transmit state not used) */
+	int in_frame;         /* True if receiving frame */
+
+	__u8 *head;	      /* start of buffer */
+	__u8 *data;	      /* start of data in buffer */
+
+	int len;	      /* current length of data */
+	int truesize;	      /* total allocated size of buffer */
+	__u16 fcs;
+
+	struct sk_buff *skb;	/* ZeroCopy Rx in async_unwrap_char() */
+} iobuff_t;
+
+/* Maximum SIR frame (skb) that we expect to receive *unwrapped*.
+ * Max LAP MTU (I field) is 2048 bytes max (IrLAP 1.1, chapt 6.6.5, p40).
+ * Max LAP header is 2 bytes (for now).
+ * Max CRC is 2 bytes at SIR, 4 bytes at FIR. 
+ * Need 1 byte for skb_reserve() to align IP header for IrLAN.
+ * Add a few extra bytes just to be safe (buffer is power of two anyway)
+ * Jean II */
+#define IRDA_SKB_MAX_MTU	2064
+/* Maximum SIR frame that we expect to send, wrapped (i.e. with XBOFS
+ * and escaped characters on top of above). */
+#define IRDA_SIR_MAX_FRAME	4269
+
+/* The SIR unwrapper async_unwrap_char() will use a Rx-copy-break mechanism
+ * when using the optional ZeroCopy Rx, where only small frames are memcpy
+ * to a smaller skb to save memory. This is the threshold under which copy
+ * will happen (and over which it won't happen).
+ * Some FIR drivers may use this #define as well...
+ * This is the same value as various Ethernet drivers. - Jean II */
+#define IRDA_RX_COPY_THRESHOLD  256
+
+/* Function prototypes */
+int  irda_device_init(void);
+void irda_device_cleanup(void);
+
+/* IrLAP entry points used by the drivers.
+ * We declare them here to avoid the driver pulling a whole bunch stack
+ * headers they don't really need - Jean II */
+struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
+			    const char *hw_name);
+void irlap_close(struct irlap_cb *self);
+
+/* Interface to be uses by IrLAP */
+void irda_device_set_media_busy(struct net_device *dev, int status);
+int  irda_device_is_media_busy(struct net_device *dev);
+int  irda_device_is_receiving(struct net_device *dev);
+
+/* Interface for internal use */
+static inline int irda_device_txqueue_empty(const struct net_device *dev)
+{
+	return (skb_queue_len(&dev->qdisc->q) == 0);
+}
+int  irda_device_set_raw_mode(struct net_device* self, int status);
+struct net_device *alloc_irdadev(int sizeof_priv);
+
+/* Dongle interface */
+void irda_device_unregister_dongle(struct dongle_reg *dongle);
+int  irda_device_register_dongle(struct dongle_reg *dongle);
+dongle_t *irda_device_dongle_init(struct net_device *dev, int type);
+int irda_device_dongle_cleanup(dongle_t *dongle);
+
+#ifdef CONFIG_ISA
+void irda_setup_dma(int channel, dma_addr_t buffer, int count, int mode);
+#endif
+
+void irda_task_delete(struct irda_task *task);
+struct irda_task *irda_task_execute(void *instance, 
+				    IRDA_TASK_CALLBACK function, 
+				    IRDA_TASK_CALLBACK finished, 
+				    struct irda_task *parent, void *param);
+void irda_task_next_state(struct irda_task *task, IRDA_TASK_STATE state);
+
+/*
+ * Function irda_get_mtt (skb)
+ *
+ *    Utility function for getting the minimum turnaround time out of 
+ *    the skb, where it has been hidden in the cb field.
+ */
+static inline __u16 irda_get_mtt(const struct sk_buff *skb)
+{
+	const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
+	return (cb->magic == LAP_MAGIC) ? cb->mtt : 10000;
+}
+
+/*
+ * Function irda_get_next_speed (skb)
+ *
+ *    Extract the speed that should be set *after* this frame from the skb
+ *
+ * Note : return -1 for user space frames
+ */
+static inline __u32 irda_get_next_speed(const struct sk_buff *skb)
+{
+	const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
+	return (cb->magic == LAP_MAGIC) ? cb->next_speed : -1;
+}
+
+/*
+ * Function irda_get_next_xbofs (skb)
+ *
+ *    Extract the xbofs that should be set for this frame from the skb
+ *
+ * Note : default to 10 for user space frames
+ */
+static inline __u16 irda_get_xbofs(const struct sk_buff *skb)
+{
+	const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
+	return (cb->magic == LAP_MAGIC) ? cb->xbofs : 10;
+}
+
+/*
+ * Function irda_get_next_xbofs (skb)
+ *
+ *    Extract the xbofs that should be set *after* this frame from the skb
+ *
+ * Note : return -1 for user space frames
+ */
+static inline __u16 irda_get_next_xbofs(const struct sk_buff *skb)
+{
+	const struct irda_skb_cb *cb = (const struct irda_skb_cb *) skb->cb;
+	return (cb->magic == LAP_MAGIC) ? cb->next_xbofs : -1;
+}
+#endif /* IRDA_DEVICE_H */
+
+