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/net/irda/ircomm/Kconfig b/net/irda/ircomm/Kconfig
new file mode 100644
index 0000000..2d4c6b4
--- /dev/null
+++ b/net/irda/ircomm/Kconfig
@@ -0,0 +1,12 @@
+config IRCOMM
+ tristate "IrCOMM protocol"
+ depends on IRDA
+ help
+ Say Y here if you want to build support for the IrCOMM protocol.
+ To compile it as modules, choose M here: the modules will be
+ called ircomm and ircomm_tty.
+ IrCOMM implements serial port emulation, and makes it possible to
+ use all existing applications that understands TTY's with an
+ infrared link. Thus you should be able to use application like PPP,
+ minicom and others.
+
diff --git a/net/irda/ircomm/Makefile b/net/irda/ircomm/Makefile
new file mode 100644
index 0000000..4868945
--- /dev/null
+++ b/net/irda/ircomm/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for the Linux IrDA IrCOMM protocol layer.
+#
+
+obj-$(CONFIG_IRCOMM) += ircomm.o ircomm-tty.o
+
+ircomm-objs := ircomm_core.o ircomm_event.o ircomm_lmp.o ircomm_ttp.o
+ircomm-tty-objs := ircomm_tty.o ircomm_tty_attach.o ircomm_tty_ioctl.o ircomm_param.o
diff --git a/net/irda/ircomm/ircomm_core.c b/net/irda/ircomm/ircomm_core.c
new file mode 100644
index 0000000..2868819
--- /dev/null
+++ b/net/irda/ircomm/ircomm_core.c
@@ -0,0 +1,587 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_core.c
+ * Version: 1.0
+ * Description: IrCOMM service interface
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sun Jun 6 20:37:34 1999
+ * Modified at: Tue Dec 21 13:26:41 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
+ * Copyright (c) 2000-2003 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
+ *
+ ********************************************************************/
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irmod.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/iriap.h>
+#include <net/irda/irttp.h>
+#include <net/irda/irias_object.h>
+
+#include <net/irda/ircomm_event.h>
+#include <net/irda/ircomm_lmp.h>
+#include <net/irda/ircomm_ttp.h>
+#include <net/irda/ircomm_param.h>
+#include <net/irda/ircomm_core.h>
+
+static int __ircomm_close(struct ircomm_cb *self);
+static void ircomm_control_indication(struct ircomm_cb *self,
+ struct sk_buff *skb, int clen);
+
+#ifdef CONFIG_PROC_FS
+extern struct proc_dir_entry *proc_irda;
+static int ircomm_seq_open(struct inode *, struct file *);
+
+static struct file_operations ircomm_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = ircomm_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+#endif /* CONFIG_PROC_FS */
+
+hashbin_t *ircomm = NULL;
+
+static int __init ircomm_init(void)
+{
+ ircomm = hashbin_new(HB_LOCK);
+ if (ircomm == NULL) {
+ IRDA_ERROR("%s(), can't allocate hashbin!\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+
+#ifdef CONFIG_PROC_FS
+ { struct proc_dir_entry *ent;
+ ent = create_proc_entry("ircomm", 0, proc_irda);
+ if (ent)
+ ent->proc_fops = &ircomm_proc_fops;
+ }
+#endif /* CONFIG_PROC_FS */
+
+ IRDA_MESSAGE("IrCOMM protocol (Dag Brattli)\n");
+
+ return 0;
+}
+
+static void __exit ircomm_cleanup(void)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ hashbin_delete(ircomm, (FREE_FUNC) __ircomm_close);
+
+#ifdef CONFIG_PROC_FS
+ remove_proc_entry("ircomm", proc_irda);
+#endif /* CONFIG_PROC_FS */
+}
+
+/*
+ * Function ircomm_open (client_notify)
+ *
+ * Start a new IrCOMM instance
+ *
+ */
+struct ircomm_cb *ircomm_open(notify_t *notify, __u8 service_type, int line)
+{
+ struct ircomm_cb *self = NULL;
+ int ret;
+
+ IRDA_DEBUG(2, "%s(), service_type=0x%02x\n", __FUNCTION__ ,
+ service_type);
+
+ IRDA_ASSERT(ircomm != NULL, return NULL;);
+
+ self = kmalloc(sizeof(struct ircomm_cb), GFP_ATOMIC);
+ if (self == NULL)
+ return NULL;
+
+ memset(self, 0, sizeof(struct ircomm_cb));
+
+ self->notify = *notify;
+ self->magic = IRCOMM_MAGIC;
+
+ /* Check if we should use IrLMP or IrTTP */
+ if (service_type & IRCOMM_3_WIRE_RAW) {
+ self->flow_status = FLOW_START;
+ ret = ircomm_open_lsap(self);
+ } else
+ ret = ircomm_open_tsap(self);
+
+ if (ret < 0) {
+ kfree(self);
+ return NULL;
+ }
+
+ self->service_type = service_type;
+ self->line = line;
+
+ hashbin_insert(ircomm, (irda_queue_t *) self, line, NULL);
+
+ ircomm_next_state(self, IRCOMM_IDLE);
+
+ return self;
+}
+
+EXPORT_SYMBOL(ircomm_open);
+
+/*
+ * Function ircomm_close_instance (self)
+ *
+ * Remove IrCOMM instance
+ *
+ */
+static int __ircomm_close(struct ircomm_cb *self)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ /* Disconnect link if any */
+ ircomm_do_event(self, IRCOMM_DISCONNECT_REQUEST, NULL, NULL);
+
+ /* Remove TSAP */
+ if (self->tsap) {
+ irttp_close_tsap(self->tsap);
+ self->tsap = NULL;
+ }
+
+ /* Remove LSAP */
+ if (self->lsap) {
+ irlmp_close_lsap(self->lsap);
+ self->lsap = NULL;
+ }
+ self->magic = 0;
+
+ kfree(self);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_close (self)
+ *
+ * Closes and removes the specified IrCOMM instance
+ *
+ */
+int ircomm_close(struct ircomm_cb *self)
+{
+ struct ircomm_cb *entry;
+
+ IRDA_ASSERT(self != NULL, return -EIO;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -EIO;);
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ entry = hashbin_remove(ircomm, self->line, NULL);
+
+ IRDA_ASSERT(entry == self, return -1;);
+
+ return __ircomm_close(self);
+}
+
+EXPORT_SYMBOL(ircomm_close);
+
+/*
+ * Function ircomm_connect_request (self, service_type)
+ *
+ * Impl. of this function is differ from one of the reference. This
+ * function does discovery as well as sending connect request
+ *
+ */
+int ircomm_connect_request(struct ircomm_cb *self, __u8 dlsap_sel,
+ __u32 saddr, __u32 daddr, struct sk_buff *skb,
+ __u8 service_type)
+{
+ struct ircomm_info info;
+ int ret;
+
+ IRDA_DEBUG(2 , "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
+
+ self->service_type= service_type;
+
+ info.dlsap_sel = dlsap_sel;
+ info.saddr = saddr;
+ info.daddr = daddr;
+
+ ret = ircomm_do_event(self, IRCOMM_CONNECT_REQUEST, skb, &info);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(ircomm_connect_request);
+
+/*
+ * Function ircomm_connect_indication (self, qos, skb)
+ *
+ * Notify user layer about the incoming connection
+ *
+ */
+void ircomm_connect_indication(struct ircomm_cb *self, struct sk_buff *skb,
+ struct ircomm_info *info)
+{
+ int clen = 0;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ /* Check if the packet contains data on the control channel */
+ if (skb->len > 0)
+ clen = skb->data[0];
+
+ /*
+ * If there are any data hiding in the control channel, we must
+ * deliver it first. The side effect is that the control channel
+ * will be removed from the skb
+ */
+ if (self->notify.connect_indication)
+ self->notify.connect_indication(self->notify.instance, self,
+ info->qos, info->max_data_size,
+ info->max_header_size, skb);
+ else {
+ IRDA_DEBUG(0, "%s(), missing handler\n", __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_connect_response (self, userdata, max_sdu_size)
+ *
+ * User accepts connection
+ *
+ */
+int ircomm_connect_response(struct ircomm_cb *self, struct sk_buff *userdata)
+{
+ int ret;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ ret = ircomm_do_event(self, IRCOMM_CONNECT_RESPONSE, userdata, NULL);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(ircomm_connect_response);
+
+/*
+ * Function connect_confirm (self, skb)
+ *
+ * Notify user layer that the link is now connected
+ *
+ */
+void ircomm_connect_confirm(struct ircomm_cb *self, struct sk_buff *skb,
+ struct ircomm_info *info)
+{
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ if (self->notify.connect_confirm )
+ self->notify.connect_confirm(self->notify.instance,
+ self, info->qos,
+ info->max_data_size,
+ info->max_header_size, skb);
+ else {
+ IRDA_DEBUG(0, "%s(), missing handler\n", __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_data_request (self, userdata)
+ *
+ * Send IrCOMM data to peer device
+ *
+ */
+int ircomm_data_request(struct ircomm_cb *self, struct sk_buff *skb)
+{
+ int ret;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -EFAULT;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -EFAULT;);
+ IRDA_ASSERT(skb != NULL, return -EFAULT;);
+
+ ret = ircomm_do_event(self, IRCOMM_DATA_REQUEST, skb, NULL);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(ircomm_data_request);
+
+/*
+ * Function ircomm_data_indication (self, skb)
+ *
+ * Data arrived, so deliver it to user
+ *
+ */
+void ircomm_data_indication(struct ircomm_cb *self, struct sk_buff *skb)
+{
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(skb->len > 0, return;);
+
+ if (self->notify.data_indication)
+ self->notify.data_indication(self->notify.instance, self, skb);
+ else {
+ IRDA_DEBUG(0, "%s(), missing handler\n", __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_process_data (self, skb)
+ *
+ * Data arrived which may contain control channel data
+ *
+ */
+void ircomm_process_data(struct ircomm_cb *self, struct sk_buff *skb)
+{
+ int clen;
+
+ IRDA_ASSERT(skb->len > 0, return;);
+
+ clen = skb->data[0];
+
+ /*
+ * If there are any data hiding in the control channel, we must
+ * deliver it first. The side effect is that the control channel
+ * will be removed from the skb
+ */
+ if (clen > 0)
+ ircomm_control_indication(self, skb, clen);
+
+ /* Remove control channel from data channel */
+ skb_pull(skb, clen+1);
+
+ if (skb->len)
+ ircomm_data_indication(self, skb);
+ else {
+ IRDA_DEBUG(4, "%s(), data was control info only!\n",
+ __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_control_request (self, params)
+ *
+ * Send control data to peer device
+ *
+ */
+int ircomm_control_request(struct ircomm_cb *self, struct sk_buff *skb)
+{
+ int ret;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -EFAULT;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -EFAULT;);
+ IRDA_ASSERT(skb != NULL, return -EFAULT;);
+
+ ret = ircomm_do_event(self, IRCOMM_CONTROL_REQUEST, skb, NULL);
+
+ return ret;
+}
+
+EXPORT_SYMBOL(ircomm_control_request);
+
+/*
+ * Function ircomm_control_indication (self, skb)
+ *
+ * Data has arrived on the control channel
+ *
+ */
+static void ircomm_control_indication(struct ircomm_cb *self,
+ struct sk_buff *skb, int clen)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ /* Use udata for delivering data on the control channel */
+ if (self->notify.udata_indication) {
+ struct sk_buff *ctrl_skb;
+
+ /* We don't own the skb, so clone it */
+ ctrl_skb = skb_clone(skb, GFP_ATOMIC);
+ if (!ctrl_skb)
+ return;
+
+ /* Remove data channel from control channel */
+ skb_trim(ctrl_skb, clen+1);
+
+ self->notify.udata_indication(self->notify.instance, self,
+ ctrl_skb);
+
+ /* Drop reference count -
+ * see ircomm_tty_control_indication(). */
+ dev_kfree_skb(ctrl_skb);
+ } else {
+ IRDA_DEBUG(0, "%s(), missing handler\n", __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_disconnect_request (self, userdata, priority)
+ *
+ * User layer wants to disconnect the IrCOMM connection
+ *
+ */
+int ircomm_disconnect_request(struct ircomm_cb *self, struct sk_buff *userdata)
+{
+ struct ircomm_info info;
+ int ret;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
+
+ ret = ircomm_do_event(self, IRCOMM_DISCONNECT_REQUEST, userdata,
+ &info);
+ return ret;
+}
+
+EXPORT_SYMBOL(ircomm_disconnect_request);
+
+/*
+ * Function disconnect_indication (self, skb)
+ *
+ * Tell user that the link has been disconnected
+ *
+ */
+void ircomm_disconnect_indication(struct ircomm_cb *self, struct sk_buff *skb,
+ struct ircomm_info *info)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(info != NULL, return;);
+
+ if (self->notify.disconnect_indication) {
+ self->notify.disconnect_indication(self->notify.instance, self,
+ info->reason, skb);
+ } else {
+ IRDA_DEBUG(0, "%s(), missing handler\n", __FUNCTION__ );
+ }
+}
+
+/*
+ * Function ircomm_flow_request (self, flow)
+ *
+ *
+ *
+ */
+void ircomm_flow_request(struct ircomm_cb *self, LOCAL_FLOW flow)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+
+ if (self->service_type == IRCOMM_3_WIRE_RAW)
+ return;
+
+ irttp_flow_request(self->tsap, flow);
+}
+
+EXPORT_SYMBOL(ircomm_flow_request);
+
+#ifdef CONFIG_PROC_FS
+static void *ircomm_seq_start(struct seq_file *seq, loff_t *pos)
+{
+ struct ircomm_cb *self;
+ loff_t off = 0;
+
+ spin_lock_irq(&ircomm->hb_spinlock);
+
+ for (self = (struct ircomm_cb *) hashbin_get_first(ircomm);
+ self != NULL;
+ self = (struct ircomm_cb *) hashbin_get_next(ircomm)) {
+ if (off++ == *pos)
+ break;
+
+ }
+ return self;
+}
+
+static void *ircomm_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+ ++*pos;
+
+ return (void *) hashbin_get_next(ircomm);
+}
+
+static void ircomm_seq_stop(struct seq_file *seq, void *v)
+{
+ spin_unlock_irq(&ircomm->hb_spinlock);
+}
+
+static int ircomm_seq_show(struct seq_file *seq, void *v)
+{
+ const struct ircomm_cb *self = v;
+
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -EINVAL; );
+
+ if(self->line < 0x10)
+ seq_printf(seq, "ircomm%d", self->line);
+ else
+ seq_printf(seq, "irlpt%d", self->line - 0x10);
+
+ seq_printf(seq,
+ " state: %s, slsap_sel: %#02x, dlsap_sel: %#02x, mode:",
+ ircomm_state[ self->state],
+ self->slsap_sel, self->dlsap_sel);
+
+ if(self->service_type & IRCOMM_3_WIRE_RAW)
+ seq_printf(seq, " 3-wire-raw");
+ if(self->service_type & IRCOMM_3_WIRE)
+ seq_printf(seq, " 3-wire");
+ if(self->service_type & IRCOMM_9_WIRE)
+ seq_printf(seq, " 9-wire");
+ if(self->service_type & IRCOMM_CENTRONICS)
+ seq_printf(seq, " Centronics");
+ seq_putc(seq, '\n');
+
+ return 0;
+}
+
+static struct seq_operations ircomm_seq_ops = {
+ .start = ircomm_seq_start,
+ .next = ircomm_seq_next,
+ .stop = ircomm_seq_stop,
+ .show = ircomm_seq_show,
+};
+
+static int ircomm_seq_open(struct inode *inode, struct file *file)
+{
+ return seq_open(file, &ircomm_seq_ops);
+}
+#endif /* CONFIG_PROC_FS */
+
+MODULE_AUTHOR("Dag Brattli <dag@brattli.net>");
+MODULE_DESCRIPTION("IrCOMM protocol");
+MODULE_LICENSE("GPL");
+
+module_init(ircomm_init);
+module_exit(ircomm_cleanup);
diff --git a/net/irda/ircomm/ircomm_event.c b/net/irda/ircomm/ircomm_event.c
new file mode 100644
index 0000000..01f4e80
--- /dev/null
+++ b/net/irda/ircomm/ircomm_event.c
@@ -0,0 +1,251 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_event.c
+ * Version: 1.0
+ * Description: IrCOMM layer state machine
+ * Status: Stable
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sun Jun 6 20:33:11 1999
+ * Modified at: Sun Dec 12 13:44:32 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
+ *
+ * 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/sched.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/iriap.h>
+#include <net/irda/irttp.h>
+#include <net/irda/irias_object.h>
+
+#include <net/irda/ircomm_core.h>
+#include <net/irda/ircomm_event.h>
+
+static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info);
+static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info);
+static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info);
+static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info);
+
+char *ircomm_state[] = {
+ "IRCOMM_IDLE",
+ "IRCOMM_WAITI",
+ "IRCOMM_WAITR",
+ "IRCOMM_CONN",
+};
+
+#ifdef CONFIG_IRDA_DEBUG
+static char *ircomm_event[] = {
+ "IRCOMM_CONNECT_REQUEST",
+ "IRCOMM_CONNECT_RESPONSE",
+ "IRCOMM_TTP_CONNECT_INDICATION",
+ "IRCOMM_LMP_CONNECT_INDICATION",
+ "IRCOMM_TTP_CONNECT_CONFIRM",
+ "IRCOMM_LMP_CONNECT_CONFIRM",
+
+ "IRCOMM_LMP_DISCONNECT_INDICATION",
+ "IRCOMM_TTP_DISCONNECT_INDICATION",
+ "IRCOMM_DISCONNECT_REQUEST",
+
+ "IRCOMM_TTP_DATA_INDICATION",
+ "IRCOMM_LMP_DATA_INDICATION",
+ "IRCOMM_DATA_REQUEST",
+ "IRCOMM_CONTROL_REQUEST",
+ "IRCOMM_CONTROL_INDICATION",
+};
+#endif /* CONFIG_IRDA_DEBUG */
+
+static int (*state[])(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info) =
+{
+ ircomm_state_idle,
+ ircomm_state_waiti,
+ ircomm_state_waitr,
+ ircomm_state_conn,
+};
+
+/*
+ * Function ircomm_state_idle (self, event, skb)
+ *
+ * IrCOMM is currently idle
+ *
+ */
+static int ircomm_state_idle(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info)
+{
+ int ret = 0;
+
+ switch (event) {
+ case IRCOMM_CONNECT_REQUEST:
+ ircomm_next_state(self, IRCOMM_WAITI);
+ ret = self->issue.connect_request(self, skb, info);
+ break;
+ case IRCOMM_TTP_CONNECT_INDICATION:
+ case IRCOMM_LMP_CONNECT_INDICATION:
+ ircomm_next_state(self, IRCOMM_WAITR);
+ ircomm_connect_indication(self, skb, info);
+ break;
+ default:
+ IRDA_DEBUG(4, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_state_waiti (self, event, skb)
+ *
+ * The IrCOMM user has requested an IrCOMM connection to the remote
+ * device and is awaiting confirmation
+ */
+static int ircomm_state_waiti(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info)
+{
+ int ret = 0;
+
+ switch (event) {
+ case IRCOMM_TTP_CONNECT_CONFIRM:
+ case IRCOMM_LMP_CONNECT_CONFIRM:
+ ircomm_next_state(self, IRCOMM_CONN);
+ ircomm_connect_confirm(self, skb, info);
+ break;
+ case IRCOMM_TTP_DISCONNECT_INDICATION:
+ case IRCOMM_LMP_DISCONNECT_INDICATION:
+ ircomm_next_state(self, IRCOMM_IDLE);
+ ircomm_disconnect_indication(self, skb, info);
+ break;
+ default:
+ IRDA_DEBUG(0, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_state_waitr (self, event, skb)
+ *
+ * IrCOMM has received an incoming connection request and is awaiting
+ * response from the user
+ */
+static int ircomm_state_waitr(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info)
+{
+ int ret = 0;
+
+ switch (event) {
+ case IRCOMM_CONNECT_RESPONSE:
+ ircomm_next_state(self, IRCOMM_CONN);
+ ret = self->issue.connect_response(self, skb);
+ break;
+ case IRCOMM_DISCONNECT_REQUEST:
+ ircomm_next_state(self, IRCOMM_IDLE);
+ ret = self->issue.disconnect_request(self, skb, info);
+ break;
+ case IRCOMM_TTP_DISCONNECT_INDICATION:
+ case IRCOMM_LMP_DISCONNECT_INDICATION:
+ ircomm_next_state(self, IRCOMM_IDLE);
+ ircomm_disconnect_indication(self, skb, info);
+ break;
+ default:
+ IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__ ,
+ ircomm_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_state_conn (self, event, skb)
+ *
+ * IrCOMM is connected to the peer IrCOMM device
+ *
+ */
+static int ircomm_state_conn(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info)
+{
+ int ret = 0;
+
+ switch (event) {
+ case IRCOMM_DATA_REQUEST:
+ ret = self->issue.data_request(self, skb, 0);
+ break;
+ case IRCOMM_TTP_DATA_INDICATION:
+ ircomm_process_data(self, skb);
+ break;
+ case IRCOMM_LMP_DATA_INDICATION:
+ ircomm_data_indication(self, skb);
+ break;
+ case IRCOMM_CONTROL_REQUEST:
+ /* Just send a separate frame for now */
+ ret = self->issue.data_request(self, skb, skb->len);
+ break;
+ case IRCOMM_TTP_DISCONNECT_INDICATION:
+ case IRCOMM_LMP_DISCONNECT_INDICATION:
+ ircomm_next_state(self, IRCOMM_IDLE);
+ ircomm_disconnect_indication(self, skb, info);
+ break;
+ case IRCOMM_DISCONNECT_REQUEST:
+ ircomm_next_state(self, IRCOMM_IDLE);
+ ret = self->issue.disconnect_request(self, skb, info);
+ break;
+ default:
+ IRDA_DEBUG(0, "%s(), unknown event = %s\n", __FUNCTION__ ,
+ ircomm_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_do_event (self, event, skb)
+ *
+ * Process event
+ *
+ */
+int ircomm_do_event(struct ircomm_cb *self, IRCOMM_EVENT event,
+ struct sk_buff *skb, struct ircomm_info *info)
+{
+ IRDA_DEBUG(4, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_state[self->state], ircomm_event[event]);
+
+ return (*state[self->state])(self, event, skb, info);
+}
+
+/*
+ * Function ircomm_next_state (self, state)
+ *
+ * Switch state
+ *
+ */
+void ircomm_next_state(struct ircomm_cb *self, IRCOMM_STATE state)
+{
+ self->state = state;
+
+ IRDA_DEBUG(4, "%s: next state=%s, service type=%d\n", __FUNCTION__ ,
+ ircomm_state[self->state], self->service_type);
+}
diff --git a/net/irda/ircomm/ircomm_lmp.c b/net/irda/ircomm/ircomm_lmp.c
new file mode 100644
index 0000000..d909720
--- /dev/null
+++ b/net/irda/ircomm/ircomm_lmp.c
@@ -0,0 +1,372 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_lmp.c
+ * Version: 1.0
+ * Description: Interface between IrCOMM and IrLMP
+ * Status: Stable
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sun Jun 6 20:48:27 1999
+ * Modified at: Sun Dec 12 13:44:17 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ * Sources: Previous IrLPT work by Thomas Davis
+ *
+ * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
+ * Copyright (c) 2000-2003 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
+ *
+ ********************************************************************/
+
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/iriap.h>
+#include <net/irda/irda_device.h> /* struct irda_skb_cb */
+
+#include <net/irda/ircomm_event.h>
+#include <net/irda/ircomm_lmp.h>
+
+
+/*
+ * Function ircomm_lmp_connect_request (self, userdata)
+ *
+ *
+ *
+ */
+static int ircomm_lmp_connect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ /* Don't forget to refcount it - should be NULL anyway */
+ if(userdata)
+ skb_get(userdata);
+
+ ret = irlmp_connect_request(self->lsap, info->dlsap_sel,
+ info->saddr, info->daddr, NULL, userdata);
+ return ret;
+}
+
+/*
+ * Function ircomm_lmp_connect_response (self, skb)
+ *
+ *
+ *
+ */
+static int ircomm_lmp_connect_response(struct ircomm_cb *self,
+ struct sk_buff *userdata)
+{
+ struct sk_buff *tx_skb;
+ int ret;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ /* Any userdata supplied? */
+ if (userdata == NULL) {
+ tx_skb = dev_alloc_skb(64);
+ if (!tx_skb)
+ return -ENOMEM;
+
+ /* Reserve space for MUX and LAP header */
+ skb_reserve(tx_skb, LMP_MAX_HEADER);
+ } else {
+ /*
+ * Check that the client has reserved enough space for
+ * headers
+ */
+ IRDA_ASSERT(skb_headroom(userdata) >= LMP_MAX_HEADER,
+ return -1;);
+
+ /* Don't forget to refcount it - should be NULL anyway */
+ skb_get(userdata);
+ tx_skb = userdata;
+ }
+
+ ret = irlmp_connect_response(self->lsap, tx_skb);
+
+ return 0;
+}
+
+static int ircomm_lmp_disconnect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info)
+{
+ struct sk_buff *tx_skb;
+ int ret;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ if (!userdata) {
+ tx_skb = dev_alloc_skb(64);
+ if (!tx_skb)
+ return -ENOMEM;
+
+ /* Reserve space for MUX and LAP header */
+ skb_reserve(tx_skb, LMP_MAX_HEADER);
+ userdata = tx_skb;
+ } else {
+ /* Don't forget to refcount it - should be NULL anyway */
+ skb_get(userdata);
+ }
+
+ ret = irlmp_disconnect_request(self->lsap, userdata);
+
+ return ret;
+}
+
+/*
+ * Function ircomm_lmp_flow_control (skb)
+ *
+ * This function is called when a data frame we have sent to IrLAP has
+ * been deallocated. We do this to make sure we don't flood IrLAP with
+ * frames, since we are not using the IrTTP flow control mechanism
+ */
+static void ircomm_lmp_flow_control(struct sk_buff *skb)
+{
+ struct irda_skb_cb *cb;
+ struct ircomm_cb *self;
+ int line;
+
+ IRDA_ASSERT(skb != NULL, return;);
+
+ cb = (struct irda_skb_cb *) skb->cb;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ line = cb->line;
+
+ self = (struct ircomm_cb *) hashbin_lock_find(ircomm, line, NULL);
+ if (!self) {
+ IRDA_DEBUG(2, "%s(), didn't find myself\n", __FUNCTION__ );
+ return;
+ }
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+
+ self->pkt_count--;
+
+ if ((self->pkt_count < 2) && (self->flow_status == FLOW_STOP)) {
+ IRDA_DEBUG(2, "%s(), asking TTY to start again!\n", __FUNCTION__ );
+ self->flow_status = FLOW_START;
+ if (self->notify.flow_indication)
+ self->notify.flow_indication(self->notify.instance,
+ self, FLOW_START);
+ }
+}
+
+/*
+ * Function ircomm_lmp_data_request (self, userdata)
+ *
+ * Send data frame to peer device
+ *
+ */
+static int ircomm_lmp_data_request(struct ircomm_cb *self,
+ struct sk_buff *skb,
+ int not_used)
+{
+ struct irda_skb_cb *cb;
+ int ret;
+
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ cb = (struct irda_skb_cb *) skb->cb;
+
+ cb->line = self->line;
+
+ IRDA_DEBUG(4, "%s(), sending frame\n", __FUNCTION__ );
+
+ /* Don't forget to refcount it - see ircomm_tty_do_softint() */
+ skb_get(skb);
+
+ skb->destructor = ircomm_lmp_flow_control;
+
+ if ((self->pkt_count++ > 7) && (self->flow_status == FLOW_START)) {
+ IRDA_DEBUG(2, "%s(), asking TTY to slow down!\n", __FUNCTION__ );
+ self->flow_status = FLOW_STOP;
+ if (self->notify.flow_indication)
+ self->notify.flow_indication(self->notify.instance,
+ self, FLOW_STOP);
+ }
+ ret = irlmp_data_request(self->lsap, skb);
+ if (ret) {
+ IRDA_ERROR("%s(), failed\n", __FUNCTION__);
+ /* irlmp_data_request already free the packet */
+ }
+
+ return ret;
+}
+
+/*
+ * Function ircomm_lmp_data_indication (instance, sap, skb)
+ *
+ * Incoming data which we must deliver to the state machine, to check
+ * we are still connected.
+ */
+static int ircomm_lmp_data_indication(void *instance, void *sap,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ ircomm_do_event(self, IRCOMM_LMP_DATA_INDICATION, skb, NULL);
+
+ /* Drop reference count - see ircomm_tty_data_indication(). */
+ dev_kfree_skb(skb);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_lmp_connect_confirm (instance, sap, qos, max_sdu_size,
+ * max_header_size, skb)
+ *
+ * Connection has been confirmed by peer device
+ *
+ */
+static void ircomm_lmp_connect_confirm(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_seg_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+ IRDA_ASSERT(skb != NULL, return;);
+ IRDA_ASSERT(qos != NULL, return;);
+
+ info.max_data_size = max_seg_size;
+ info.max_header_size = max_header_size;
+ info.qos = qos;
+
+ ircomm_do_event(self, IRCOMM_LMP_CONNECT_CONFIRM, skb, &info);
+
+ /* Drop reference count - see ircomm_tty_connect_confirm(). */
+ dev_kfree_skb(skb);
+}
+
+/*
+ * Function ircomm_lmp_connect_indication (instance, sap, qos, max_sdu_size,
+ * max_header_size, skb)
+ *
+ * Peer device wants to make a connection with us
+ *
+ */
+static void ircomm_lmp_connect_indication(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_seg_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *)instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+ IRDA_ASSERT(skb != NULL, return;);
+ IRDA_ASSERT(qos != NULL, return;);
+
+ info.max_data_size = max_seg_size;
+ info.max_header_size = max_header_size;
+ info.qos = qos;
+
+ ircomm_do_event(self, IRCOMM_LMP_CONNECT_INDICATION, skb, &info);
+
+ /* Drop reference count - see ircomm_tty_connect_indication(). */
+ dev_kfree_skb(skb);
+}
+
+/*
+ * Function ircomm_lmp_disconnect_indication (instance, sap, reason, skb)
+ *
+ * Peer device has closed the connection, or the link went down for some
+ * other reason
+ */
+static void ircomm_lmp_disconnect_indication(void *instance, void *sap,
+ LM_REASON reason,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+
+ info.reason = reason;
+
+ ircomm_do_event(self, IRCOMM_LMP_DISCONNECT_INDICATION, skb, &info);
+
+ /* Drop reference count - see ircomm_tty_disconnect_indication(). */
+ if(skb)
+ dev_kfree_skb(skb);
+}
+/*
+ * Function ircomm_open_lsap (self)
+ *
+ * Open LSAP. This function will only be used when using "raw" services
+ *
+ */
+int ircomm_open_lsap(struct ircomm_cb *self)
+{
+ notify_t notify;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ /* Register callbacks */
+ irda_notify_init(¬ify);
+ notify.data_indication = ircomm_lmp_data_indication;
+ notify.connect_confirm = ircomm_lmp_connect_confirm;
+ notify.connect_indication = ircomm_lmp_connect_indication;
+ notify.disconnect_indication = ircomm_lmp_disconnect_indication;
+ notify.instance = self;
+ strlcpy(notify.name, "IrCOMM", sizeof(notify.name));
+
+ self->lsap = irlmp_open_lsap(LSAP_ANY, ¬ify, 0);
+ if (!self->lsap) {
+ IRDA_DEBUG(0,"%sfailed to allocate tsap\n", __FUNCTION__ );
+ return -1;
+ }
+ self->slsap_sel = self->lsap->slsap_sel;
+
+ /*
+ * Initialize the call-table for issuing commands
+ */
+ self->issue.data_request = ircomm_lmp_data_request;
+ self->issue.connect_request = ircomm_lmp_connect_request;
+ self->issue.connect_response = ircomm_lmp_connect_response;
+ self->issue.disconnect_request = ircomm_lmp_disconnect_request;
+
+ return 0;
+}
diff --git a/net/irda/ircomm/ircomm_param.c b/net/irda/ircomm/ircomm_param.c
new file mode 100644
index 0000000..6009bab
--- /dev/null
+++ b/net/irda/ircomm/ircomm_param.c
@@ -0,0 +1,511 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_param.c
+ * Version: 1.0
+ * Description: Parameter handling for the IrCOMM protocol
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Mon Jun 7 10:25:11 1999
+ * Modified at: Sun Jan 30 14:32:03 2000
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
+ *
+ * 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/sched.h>
+#include <linux/workqueue.h>
+#include <linux/interrupt.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/parameters.h>
+
+#include <net/irda/ircomm_core.h>
+#include <net/irda/ircomm_tty_attach.h>
+#include <net/irda/ircomm_tty.h>
+
+#include <net/irda/ircomm_param.h>
+
+static int ircomm_param_service_type(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_port_type(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_port_name(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_service_type(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_data_rate(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_data_format(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_flow_control(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_xon_xoff(void *instance, irda_param_t *param, int get);
+static int ircomm_param_enq_ack(void *instance, irda_param_t *param, int get);
+static int ircomm_param_line_status(void *instance, irda_param_t *param,
+ int get);
+static int ircomm_param_dte(void *instance, irda_param_t *param, int get);
+static int ircomm_param_dce(void *instance, irda_param_t *param, int get);
+static int ircomm_param_poll(void *instance, irda_param_t *param, int get);
+
+static pi_minor_info_t pi_minor_call_table_common[] = {
+ { ircomm_param_service_type, PV_INT_8_BITS },
+ { ircomm_param_port_type, PV_INT_8_BITS },
+ { ircomm_param_port_name, PV_STRING }
+};
+static pi_minor_info_t pi_minor_call_table_non_raw[] = {
+ { ircomm_param_data_rate, PV_INT_32_BITS | PV_BIG_ENDIAN },
+ { ircomm_param_data_format, PV_INT_8_BITS },
+ { ircomm_param_flow_control, PV_INT_8_BITS },
+ { ircomm_param_xon_xoff, PV_INT_16_BITS },
+ { ircomm_param_enq_ack, PV_INT_16_BITS },
+ { ircomm_param_line_status, PV_INT_8_BITS }
+};
+static pi_minor_info_t pi_minor_call_table_9_wire[] = {
+ { ircomm_param_dte, PV_INT_8_BITS },
+ { ircomm_param_dce, PV_INT_8_BITS },
+ { ircomm_param_poll, PV_NO_VALUE },
+};
+
+static pi_major_info_t pi_major_call_table[] = {
+ { pi_minor_call_table_common, 3 },
+ { pi_minor_call_table_non_raw, 6 },
+ { pi_minor_call_table_9_wire, 3 }
+/* { pi_minor_call_table_centronics } */
+};
+
+pi_param_info_t ircomm_param_info = { pi_major_call_table, 3, 0x0f, 4 };
+
+/*
+ * Function ircomm_param_request (self, pi, flush)
+ *
+ * Queue a parameter for the control channel
+ *
+ */
+int ircomm_param_request(struct ircomm_tty_cb *self, __u8 pi, int flush)
+{
+ struct tty_struct *tty;
+ unsigned long flags;
+ struct sk_buff *skb;
+ int count;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ tty = self->tty;
+ if (!tty)
+ return 0;
+
+ /* Make sure we don't send parameters for raw mode */
+ if (self->service_type == IRCOMM_3_WIRE_RAW)
+ return 0;
+
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ skb = self->ctrl_skb;
+ if (!skb) {
+ skb = dev_alloc_skb(256);
+ if (!skb) {
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ return -ENOMEM;
+ }
+
+ skb_reserve(skb, self->max_header_size);
+ self->ctrl_skb = skb;
+ }
+ /*
+ * Inserting is a little bit tricky since we don't know how much
+ * room we will need. But this should hopefully work OK
+ */
+ count = irda_param_insert(self, pi, skb->tail, skb_tailroom(skb),
+ &ircomm_param_info);
+ if (count < 0) {
+ IRDA_WARNING("%s(), no room for parameter!\n", __FUNCTION__);
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ return -1;
+ }
+ skb_put(skb, count);
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ IRDA_DEBUG(2, "%s(), skb->len=%d\n", __FUNCTION__ , skb->len);
+
+ if (flush) {
+ /* ircomm_tty_do_softint will take care of the rest */
+ schedule_work(&self->tqueue);
+ }
+
+ return count;
+}
+
+/*
+ * Function ircomm_param_service_type (self, buf, len)
+ *
+ * Handle service type, this function will both be called after the LM-IAS
+ * query and then the remote device sends its initial parameters
+ *
+ */
+static int ircomm_param_service_type(void *instance, irda_param_t *param,
+ int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ __u8 service_type = (__u8) param->pv.i;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get) {
+ param->pv.i = self->settings.service_type;
+ return 0;
+ }
+
+ /* Find all common service types */
+ service_type &= self->service_type;
+ if (!service_type) {
+ IRDA_DEBUG(2,
+ "%s(), No common service type to use!\n", __FUNCTION__ );
+ return -1;
+ }
+ IRDA_DEBUG(0, "%s(), services in common=%02x\n", __FUNCTION__ ,
+ service_type);
+
+ /*
+ * Now choose a preferred service type of those available
+ */
+ if (service_type & IRCOMM_CENTRONICS)
+ self->settings.service_type = IRCOMM_CENTRONICS;
+ else if (service_type & IRCOMM_9_WIRE)
+ self->settings.service_type = IRCOMM_9_WIRE;
+ else if (service_type & IRCOMM_3_WIRE)
+ self->settings.service_type = IRCOMM_3_WIRE;
+ else if (service_type & IRCOMM_3_WIRE_RAW)
+ self->settings.service_type = IRCOMM_3_WIRE_RAW;
+
+ IRDA_DEBUG(0, "%s(), resulting service type=0x%02x\n", __FUNCTION__ ,
+ self->settings.service_type);
+
+ /*
+ * Now the line is ready for some communication. Check if we are a
+ * server, and send over some initial parameters.
+ * Client do it in ircomm_tty_state_setup().
+ * Note : we may get called from ircomm_tty_getvalue_confirm(),
+ * therefore before we even have open any socket. And self->client
+ * is initialised to TRUE only later. So, we check if the link is
+ * really initialised. - Jean II
+ */
+ if ((self->max_header_size != IRCOMM_TTY_HDR_UNINITIALISED) &&
+ (!self->client) &&
+ (self->settings.service_type != IRCOMM_3_WIRE_RAW))
+ {
+ /* Init connection */
+ ircomm_tty_send_initial_parameters(self);
+ ircomm_tty_link_established(self);
+ }
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_port_type (self, param)
+ *
+ * The port type parameter tells if the devices are serial or parallel.
+ * Since we only advertise serial service, this parameter should only
+ * be equal to IRCOMM_SERIAL.
+ */
+static int ircomm_param_port_type(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get)
+ param->pv.i = IRCOMM_SERIAL;
+ else {
+ self->settings.port_type = (__u8) param->pv.i;
+
+ IRDA_DEBUG(0, "%s(), port type=%d\n", __FUNCTION__ ,
+ self->settings.port_type);
+ }
+ return 0;
+}
+
+/*
+ * Function ircomm_param_port_name (self, param)
+ *
+ * Exchange port name
+ *
+ */
+static int ircomm_param_port_name(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get) {
+ IRDA_DEBUG(0, "%s(), not imp!\n", __FUNCTION__ );
+ } else {
+ IRDA_DEBUG(0, "%s(), port-name=%s\n", __FUNCTION__ , param->pv.c);
+ strncpy(self->settings.port_name, param->pv.c, 32);
+ }
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_data_rate (self, param)
+ *
+ * Exchange data rate to be used in this settings
+ *
+ */
+static int ircomm_param_data_rate(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get)
+ param->pv.i = self->settings.data_rate;
+ else
+ self->settings.data_rate = param->pv.i;
+
+ IRDA_DEBUG(2, "%s(), data rate = %d\n", __FUNCTION__ , param->pv.i);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_data_format (self, param)
+ *
+ * Exchange data format to be used in this settings
+ *
+ */
+static int ircomm_param_data_format(void *instance, irda_param_t *param,
+ int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get)
+ param->pv.i = self->settings.data_format;
+ else
+ self->settings.data_format = (__u8) param->pv.i;
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_flow_control (self, param)
+ *
+ * Exchange flow control settings to be used in this settings
+ *
+ */
+static int ircomm_param_flow_control(void *instance, irda_param_t *param,
+ int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get)
+ param->pv.i = self->settings.flow_control;
+ else
+ self->settings.flow_control = (__u8) param->pv.i;
+
+ IRDA_DEBUG(1, "%s(), flow control = 0x%02x\n", __FUNCTION__ , (__u8) param->pv.i);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_xon_xoff (self, param)
+ *
+ * Exchange XON/XOFF characters
+ *
+ */
+static int ircomm_param_xon_xoff(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get) {
+ param->pv.i = self->settings.xonxoff[0];
+ param->pv.i |= self->settings.xonxoff[1] << 8;
+ } else {
+ self->settings.xonxoff[0] = (__u16) param->pv.i & 0xff;
+ self->settings.xonxoff[1] = (__u16) param->pv.i >> 8;
+ }
+
+ IRDA_DEBUG(0, "%s(), XON/XOFF = 0x%02x,0x%02x\n", __FUNCTION__ ,
+ param->pv.i & 0xff, param->pv.i >> 8);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_enq_ack (self, param)
+ *
+ * Exchange ENQ/ACK characters
+ *
+ */
+static int ircomm_param_enq_ack(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get) {
+ param->pv.i = self->settings.enqack[0];
+ param->pv.i |= self->settings.enqack[1] << 8;
+ } else {
+ self->settings.enqack[0] = (__u16) param->pv.i & 0xff;
+ self->settings.enqack[1] = (__u16) param->pv.i >> 8;
+ }
+
+ IRDA_DEBUG(0, "%s(), ENQ/ACK = 0x%02x,0x%02x\n", __FUNCTION__ ,
+ param->pv.i & 0xff, param->pv.i >> 8);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_line_status (self, param)
+ *
+ *
+ *
+ */
+static int ircomm_param_line_status(void *instance, irda_param_t *param,
+ int get)
+{
+ IRDA_DEBUG(2, "%s(), not impl.\n", __FUNCTION__ );
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_dte (instance, param)
+ *
+ * If we get here, there must be some sort of null-modem connection, and
+ * we are probably working in server mode as well.
+ */
+static int ircomm_param_dte(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ __u8 dte;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (get)
+ param->pv.i = self->settings.dte;
+ else {
+ dte = (__u8) param->pv.i;
+
+ self->settings.dce = 0;
+
+ if (dte & IRCOMM_DELTA_DTR)
+ self->settings.dce |= (IRCOMM_DELTA_DSR|
+ IRCOMM_DELTA_RI |
+ IRCOMM_DELTA_CD);
+ if (dte & IRCOMM_DTR)
+ self->settings.dce |= (IRCOMM_DSR|
+ IRCOMM_RI |
+ IRCOMM_CD);
+
+ if (dte & IRCOMM_DELTA_RTS)
+ self->settings.dce |= IRCOMM_DELTA_CTS;
+ if (dte & IRCOMM_RTS)
+ self->settings.dce |= IRCOMM_CTS;
+
+ /* Take appropriate actions */
+ ircomm_tty_check_modem_status(self);
+
+ /* Null modem cable emulator */
+ self->settings.null_modem = TRUE;
+ }
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_dce (instance, param)
+ *
+ *
+ *
+ */
+static int ircomm_param_dce(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ __u8 dce;
+
+ IRDA_DEBUG(1, "%s(), dce = 0x%02x\n", __FUNCTION__ , (__u8) param->pv.i);
+
+ dce = (__u8) param->pv.i;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ self->settings.dce = dce;
+
+ /* Check if any of the settings have changed */
+ if (dce & 0x0f) {
+ if (dce & IRCOMM_DELTA_CTS) {
+ IRDA_DEBUG(2, "%s(), CTS \n", __FUNCTION__ );
+ }
+ }
+
+ ircomm_tty_check_modem_status(self);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_param_poll (instance, param)
+ *
+ * Called when the peer device is polling for the line settings
+ *
+ */
+static int ircomm_param_poll(void *instance, irda_param_t *param, int get)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ /* Poll parameters are always of lenght 0 (just a signal) */
+ if (!get) {
+ /* Respond with DTE line settings */
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ }
+ return 0;
+}
+
+
+
+
+
diff --git a/net/irda/ircomm/ircomm_ttp.c b/net/irda/ircomm/ircomm_ttp.c
new file mode 100644
index 0000000..d98bf35
--- /dev/null
+++ b/net/irda/ircomm/ircomm_ttp.c
@@ -0,0 +1,369 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_ttp.c
+ * Version: 1.0
+ * Description: Interface between IrCOMM and IrTTP
+ * Status: Stable
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sun Jun 6 20:48:27 1999
+ * Modified at: Mon Dec 13 11:35:13 1999
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999 Dag Brattli, All Rights Reserved.
+ * Copyright (c) 2000-2003 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
+ *
+ ********************************************************************/
+
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/iriap.h>
+#include <net/irda/irttp.h>
+
+#include <net/irda/ircomm_event.h>
+#include <net/irda/ircomm_ttp.h>
+
+static int ircomm_ttp_data_indication(void *instance, void *sap,
+ struct sk_buff *skb);
+static void ircomm_ttp_connect_confirm(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_sdu_size,
+ __u8 max_header_size,
+ struct sk_buff *skb);
+static void ircomm_ttp_connect_indication(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_sdu_size,
+ __u8 max_header_size,
+ struct sk_buff *skb);
+static void ircomm_ttp_flow_indication(void *instance, void *sap,
+ LOCAL_FLOW cmd);
+static void ircomm_ttp_disconnect_indication(void *instance, void *sap,
+ LM_REASON reason,
+ struct sk_buff *skb);
+static int ircomm_ttp_data_request(struct ircomm_cb *self,
+ struct sk_buff *skb,
+ int clen);
+static int ircomm_ttp_connect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info);
+static int ircomm_ttp_connect_response(struct ircomm_cb *self,
+ struct sk_buff *userdata);
+static int ircomm_ttp_disconnect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info);
+
+/*
+ * Function ircomm_open_tsap (self)
+ *
+ *
+ *
+ */
+int ircomm_open_tsap(struct ircomm_cb *self)
+{
+ notify_t notify;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ /* Register callbacks */
+ irda_notify_init(¬ify);
+ notify.data_indication = ircomm_ttp_data_indication;
+ notify.connect_confirm = ircomm_ttp_connect_confirm;
+ notify.connect_indication = ircomm_ttp_connect_indication;
+ notify.flow_indication = ircomm_ttp_flow_indication;
+ notify.disconnect_indication = ircomm_ttp_disconnect_indication;
+ notify.instance = self;
+ strlcpy(notify.name, "IrCOMM", sizeof(notify.name));
+
+ self->tsap = irttp_open_tsap(LSAP_ANY, DEFAULT_INITIAL_CREDIT,
+ ¬ify);
+ if (!self->tsap) {
+ IRDA_DEBUG(0, "%sfailed to allocate tsap\n", __FUNCTION__ );
+ return -1;
+ }
+ self->slsap_sel = self->tsap->stsap_sel;
+
+ /*
+ * Initialize the call-table for issuing commands
+ */
+ self->issue.data_request = ircomm_ttp_data_request;
+ self->issue.connect_request = ircomm_ttp_connect_request;
+ self->issue.connect_response = ircomm_ttp_connect_response;
+ self->issue.disconnect_request = ircomm_ttp_disconnect_request;
+
+ return 0;
+}
+
+/*
+ * Function ircomm_ttp_connect_request (self, userdata)
+ *
+ *
+ *
+ */
+static int ircomm_ttp_connect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ /* Don't forget to refcount it - should be NULL anyway */
+ if(userdata)
+ skb_get(userdata);
+
+ ret = irttp_connect_request(self->tsap, info->dlsap_sel,
+ info->saddr, info->daddr, NULL,
+ TTP_SAR_DISABLE, userdata);
+
+ return ret;
+}
+
+/*
+ * Function ircomm_ttp_connect_response (self, skb)
+ *
+ *
+ *
+ */
+static int ircomm_ttp_connect_response(struct ircomm_cb *self,
+ struct sk_buff *userdata)
+{
+ int ret;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ /* Don't forget to refcount it - should be NULL anyway */
+ if(userdata)
+ skb_get(userdata);
+
+ ret = irttp_connect_response(self->tsap, TTP_SAR_DISABLE, userdata);
+
+ return ret;
+}
+
+/*
+ * Function ircomm_ttp_data_request (self, userdata)
+ *
+ * Send IrCOMM data to IrTTP layer. Currently we do not try to combine
+ * control data with pure data, so they will be sent as separate frames.
+ * Should not be a big problem though, since control frames are rare. But
+ * some of them are sent after connection establishment, so this can
+ * increase the latency a bit.
+ */
+static int ircomm_ttp_data_request(struct ircomm_cb *self,
+ struct sk_buff *skb,
+ int clen)
+{
+ int ret;
+
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ IRDA_DEBUG(2, "%s(), clen=%d\n", __FUNCTION__ , clen);
+
+ /*
+ * Insert clen field, currently we either send data only, or control
+ * only frames, to make things easier and avoid queueing
+ */
+ IRDA_ASSERT(skb_headroom(skb) >= IRCOMM_HEADER_SIZE, return -1;);
+
+ /* Don't forget to refcount it - see ircomm_tty_do_softint() */
+ skb_get(skb);
+
+ skb_push(skb, IRCOMM_HEADER_SIZE);
+
+ skb->data[0] = clen;
+
+ ret = irttp_data_request(self->tsap, skb);
+ if (ret) {
+ IRDA_ERROR("%s(), failed\n", __FUNCTION__);
+ /* irttp_data_request already free the packet */
+ }
+
+ return ret;
+}
+
+/*
+ * Function ircomm_ttp_data_indication (instance, sap, skb)
+ *
+ * Incoming data
+ *
+ */
+static int ircomm_ttp_data_indication(void *instance, void *sap,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return -1;);
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ ircomm_do_event(self, IRCOMM_TTP_DATA_INDICATION, skb, NULL);
+
+ /* Drop reference count - see ircomm_tty_data_indication(). */
+ dev_kfree_skb(skb);
+
+ return 0;
+}
+
+static void ircomm_ttp_connect_confirm(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_sdu_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+ IRDA_ASSERT(skb != NULL, return;);
+ IRDA_ASSERT(qos != NULL, goto out;);
+
+ if (max_sdu_size != TTP_SAR_DISABLE) {
+ IRDA_ERROR("%s(), SAR not allowed for IrCOMM!\n",
+ __FUNCTION__);
+ goto out;
+ }
+
+ info.max_data_size = irttp_get_max_seg_size(self->tsap)
+ - IRCOMM_HEADER_SIZE;
+ info.max_header_size = max_header_size + IRCOMM_HEADER_SIZE;
+ info.qos = qos;
+
+ ircomm_do_event(self, IRCOMM_TTP_CONNECT_CONFIRM, skb, &info);
+
+out:
+ /* Drop reference count - see ircomm_tty_connect_confirm(). */
+ dev_kfree_skb(skb);
+}
+
+/*
+ * Function ircomm_ttp_connect_indication (instance, sap, qos, max_sdu_size,
+ * max_header_size, skb)
+ *
+ *
+ *
+ */
+static void ircomm_ttp_connect_indication(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_sdu_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *)instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+ IRDA_ASSERT(skb != NULL, return;);
+ IRDA_ASSERT(qos != NULL, goto out;);
+
+ if (max_sdu_size != TTP_SAR_DISABLE) {
+ IRDA_ERROR("%s(), SAR not allowed for IrCOMM!\n",
+ __FUNCTION__);
+ goto out;
+ }
+
+ info.max_data_size = irttp_get_max_seg_size(self->tsap)
+ - IRCOMM_HEADER_SIZE;
+ info.max_header_size = max_header_size + IRCOMM_HEADER_SIZE;
+ info.qos = qos;
+
+ ircomm_do_event(self, IRCOMM_TTP_CONNECT_INDICATION, skb, &info);
+
+out:
+ /* Drop reference count - see ircomm_tty_connect_indication(). */
+ dev_kfree_skb(skb);
+}
+
+/*
+ * Function ircomm_ttp_disconnect_request (self, userdata, info)
+ *
+ *
+ *
+ */
+static int ircomm_ttp_disconnect_request(struct ircomm_cb *self,
+ struct sk_buff *userdata,
+ struct ircomm_info *info)
+{
+ int ret;
+
+ /* Don't forget to refcount it - should be NULL anyway */
+ if(userdata)
+ skb_get(userdata);
+
+ ret = irttp_disconnect_request(self->tsap, userdata, P_NORMAL);
+
+ return ret;
+}
+
+/*
+ * Function ircomm_ttp_disconnect_indication (instance, sap, reason, skb)
+ *
+ *
+ *
+ */
+static void ircomm_ttp_disconnect_indication(void *instance, void *sap,
+ LM_REASON reason,
+ struct sk_buff *skb)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+ struct ircomm_info info;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+
+ info.reason = reason;
+
+ ircomm_do_event(self, IRCOMM_TTP_DISCONNECT_INDICATION, skb, &info);
+
+ /* Drop reference count - see ircomm_tty_disconnect_indication(). */
+ if(skb)
+ dev_kfree_skb(skb);
+}
+
+/*
+ * Function ircomm_ttp_flow_indication (instance, sap, cmd)
+ *
+ * Layer below is telling us to start or stop the flow of data
+ *
+ */
+static void ircomm_ttp_flow_indication(void *instance, void *sap,
+ LOCAL_FLOW cmd)
+{
+ struct ircomm_cb *self = (struct ircomm_cb *) instance;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_MAGIC, return;);
+
+ if (self->notify.flow_indication)
+ self->notify.flow_indication(self->notify.instance, self, cmd);
+}
+
+
diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
new file mode 100644
index 0000000..5d1e611
--- /dev/null
+++ b/net/irda/ircomm/ircomm_tty.c
@@ -0,0 +1,1405 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_tty.c
+ * Version: 1.0
+ * Description: IrCOMM serial TTY driver
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sun Jun 6 21:00:56 1999
+ * Modified at: Wed Feb 23 00:09:02 2000
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ * Sources: serial.c and previous IrCOMM work by Takahide Higuchi
+ *
+ * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
+ * Copyright (c) 2000-2003 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
+ *
+ ********************************************************************/
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/interrupt.h>
+#include <linux/device.h> /* for MODULE_ALIAS_CHARDEV_MAJOR */
+
+#include <asm/uaccess.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irmod.h>
+
+#include <net/irda/ircomm_core.h>
+#include <net/irda/ircomm_param.h>
+#include <net/irda/ircomm_tty_attach.h>
+#include <net/irda/ircomm_tty.h>
+
+static int ircomm_tty_open(struct tty_struct *tty, struct file *filp);
+static void ircomm_tty_close(struct tty_struct * tty, struct file *filp);
+static int ircomm_tty_write(struct tty_struct * tty,
+ const unsigned char *buf, int count);
+static int ircomm_tty_write_room(struct tty_struct *tty);
+static void ircomm_tty_throttle(struct tty_struct *tty);
+static void ircomm_tty_unthrottle(struct tty_struct *tty);
+static int ircomm_tty_chars_in_buffer(struct tty_struct *tty);
+static void ircomm_tty_flush_buffer(struct tty_struct *tty);
+static void ircomm_tty_send_xchar(struct tty_struct *tty, char ch);
+static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout);
+static void ircomm_tty_hangup(struct tty_struct *tty);
+static void ircomm_tty_do_softint(void *private_);
+static void ircomm_tty_shutdown(struct ircomm_tty_cb *self);
+static void ircomm_tty_stop(struct tty_struct *tty);
+
+static int ircomm_tty_data_indication(void *instance, void *sap,
+ struct sk_buff *skb);
+static int ircomm_tty_control_indication(void *instance, void *sap,
+ struct sk_buff *skb);
+static void ircomm_tty_flow_indication(void *instance, void *sap,
+ LOCAL_FLOW cmd);
+#ifdef CONFIG_PROC_FS
+static int ircomm_tty_read_proc(char *buf, char **start, off_t offset, int len,
+ int *eof, void *unused);
+#endif /* CONFIG_PROC_FS */
+static struct tty_driver *driver;
+
+hashbin_t *ircomm_tty = NULL;
+
+static struct tty_operations ops = {
+ .open = ircomm_tty_open,
+ .close = ircomm_tty_close,
+ .write = ircomm_tty_write,
+ .write_room = ircomm_tty_write_room,
+ .chars_in_buffer = ircomm_tty_chars_in_buffer,
+ .flush_buffer = ircomm_tty_flush_buffer,
+ .ioctl = ircomm_tty_ioctl, /* ircomm_tty_ioctl.c */
+ .tiocmget = ircomm_tty_tiocmget, /* ircomm_tty_ioctl.c */
+ .tiocmset = ircomm_tty_tiocmset, /* ircomm_tty_ioctl.c */
+ .throttle = ircomm_tty_throttle,
+ .unthrottle = ircomm_tty_unthrottle,
+ .send_xchar = ircomm_tty_send_xchar,
+ .set_termios = ircomm_tty_set_termios,
+ .stop = ircomm_tty_stop,
+ .start = ircomm_tty_start,
+ .hangup = ircomm_tty_hangup,
+ .wait_until_sent = ircomm_tty_wait_until_sent,
+#ifdef CONFIG_PROC_FS
+ .read_proc = ircomm_tty_read_proc,
+#endif /* CONFIG_PROC_FS */
+};
+
+/*
+ * Function ircomm_tty_init()
+ *
+ * Init IrCOMM TTY layer/driver
+ *
+ */
+static int __init ircomm_tty_init(void)
+{
+ driver = alloc_tty_driver(IRCOMM_TTY_PORTS);
+ if (!driver)
+ return -ENOMEM;
+ ircomm_tty = hashbin_new(HB_LOCK);
+ if (ircomm_tty == NULL) {
+ IRDA_ERROR("%s(), can't allocate hashbin!\n", __FUNCTION__);
+ put_tty_driver(driver);
+ return -ENOMEM;
+ }
+
+ driver->owner = THIS_MODULE;
+ driver->driver_name = "ircomm";
+ driver->name = "ircomm";
+ driver->devfs_name = "ircomm";
+ driver->major = IRCOMM_TTY_MAJOR;
+ driver->minor_start = IRCOMM_TTY_MINOR;
+ driver->type = TTY_DRIVER_TYPE_SERIAL;
+ driver->subtype = SERIAL_TYPE_NORMAL;
+ driver->init_termios = tty_std_termios;
+ driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ driver->flags = TTY_DRIVER_REAL_RAW;
+ tty_set_operations(driver, &ops);
+ if (tty_register_driver(driver)) {
+ IRDA_ERROR("%s(): Couldn't register serial driver\n",
+ __FUNCTION__);
+ put_tty_driver(driver);
+ return -1;
+ }
+ return 0;
+}
+
+static void __exit __ircomm_tty_cleanup(struct ircomm_tty_cb *self)
+{
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ ircomm_tty_shutdown(self);
+
+ self->magic = 0;
+ kfree(self);
+}
+
+/*
+ * Function ircomm_tty_cleanup ()
+ *
+ * Remove IrCOMM TTY layer/driver
+ *
+ */
+static void __exit ircomm_tty_cleanup(void)
+{
+ int ret;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ ret = tty_unregister_driver(driver);
+ if (ret) {
+ IRDA_ERROR("%s(), failed to unregister driver\n",
+ __FUNCTION__);
+ return;
+ }
+
+ hashbin_delete(ircomm_tty, (FREE_FUNC) __ircomm_tty_cleanup);
+ put_tty_driver(driver);
+}
+
+/*
+ * Function ircomm_startup (self)
+ *
+ *
+ *
+ */
+static int ircomm_tty_startup(struct ircomm_tty_cb *self)
+{
+ notify_t notify;
+ int ret = -ENODEV;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ /* Check if already open */
+ if (test_and_set_bit(ASYNC_B_INITIALIZED, &self->flags)) {
+ IRDA_DEBUG(2, "%s(), already open so break out!\n", __FUNCTION__ );
+ return 0;
+ }
+
+ /* Register with IrCOMM */
+ irda_notify_init(¬ify);
+ /* These callbacks we must handle ourselves */
+ notify.data_indication = ircomm_tty_data_indication;
+ notify.udata_indication = ircomm_tty_control_indication;
+ notify.flow_indication = ircomm_tty_flow_indication;
+
+ /* Use the ircomm_tty interface for these ones */
+ notify.disconnect_indication = ircomm_tty_disconnect_indication;
+ notify.connect_confirm = ircomm_tty_connect_confirm;
+ notify.connect_indication = ircomm_tty_connect_indication;
+ strlcpy(notify.name, "ircomm_tty", sizeof(notify.name));
+ notify.instance = self;
+
+ if (!self->ircomm) {
+ self->ircomm = ircomm_open(¬ify, self->service_type,
+ self->line);
+ }
+ if (!self->ircomm)
+ goto err;
+
+ self->slsap_sel = self->ircomm->slsap_sel;
+
+ /* Connect IrCOMM link with remote device */
+ ret = ircomm_tty_attach_cable(self);
+ if (ret < 0) {
+ IRDA_ERROR("%s(), error attaching cable!\n", __FUNCTION__);
+ goto err;
+ }
+
+ return 0;
+err:
+ clear_bit(ASYNC_B_INITIALIZED, &self->flags);
+ return ret;
+}
+
+/*
+ * Function ircomm_block_til_ready (self, filp)
+ *
+ *
+ *
+ */
+static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
+ struct file *filp)
+{
+ DECLARE_WAITQUEUE(wait, current);
+ int retval;
+ int do_clocal = 0, extra_count = 0;
+ unsigned long flags;
+ struct tty_struct *tty;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ tty = self->tty;
+
+ /*
+ * If non-blocking mode is set, or the port is not enabled,
+ * then make the check up front and then exit.
+ */
+ if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
+ /* nonblock mode is set or port is not enabled */
+ self->flags |= ASYNC_NORMAL_ACTIVE;
+ IRDA_DEBUG(1, "%s(), O_NONBLOCK requested!\n", __FUNCTION__ );
+ return 0;
+ }
+
+ if (tty->termios->c_cflag & CLOCAL) {
+ IRDA_DEBUG(1, "%s(), doing CLOCAL!\n", __FUNCTION__ );
+ do_clocal = 1;
+ }
+
+ /* Wait for carrier detect and the line to become
+ * free (i.e., not in use by the callout). While we are in
+ * this loop, self->open_count is dropped by one, so that
+ * mgsl_close() knows when to free things. We restore it upon
+ * exit, either normal or abnormal.
+ */
+
+ retval = 0;
+ add_wait_queue(&self->open_wait, &wait);
+
+ IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
+ __FILE__,__LINE__, tty->driver->name, self->open_count );
+
+ /* As far as I can see, we protect open_count - Jean II */
+ spin_lock_irqsave(&self->spinlock, flags);
+ if (!tty_hung_up_p(filp)) {
+ extra_count = 1;
+ self->open_count--;
+ }
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ self->blocked_open++;
+
+ while (1) {
+ if (tty->termios->c_cflag & CBAUD) {
+ /* Here, we use to lock those two guys, but
+ * as ircomm_param_request() does it itself,
+ * I don't see the point (and I see the deadlock).
+ * Jean II */
+ self->settings.dte |= IRCOMM_RTS + IRCOMM_DTR;
+
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ }
+
+ current->state = TASK_INTERRUPTIBLE;
+
+ if (tty_hung_up_p(filp) ||
+ !test_bit(ASYNC_B_INITIALIZED, &self->flags)) {
+ retval = (self->flags & ASYNC_HUP_NOTIFY) ?
+ -EAGAIN : -ERESTARTSYS;
+ break;
+ }
+
+ /*
+ * Check if link is ready now. Even if CLOCAL is
+ * specified, we cannot return before the IrCOMM link is
+ * ready
+ */
+ if (!test_bit(ASYNC_B_CLOSING, &self->flags) &&
+ (do_clocal || (self->settings.dce & IRCOMM_CD)) &&
+ self->state == IRCOMM_TTY_READY)
+ {
+ break;
+ }
+
+ if (signal_pending(current)) {
+ retval = -ERESTARTSYS;
+ break;
+ }
+
+ IRDA_DEBUG(1, "%s(%d):block_til_ready blocking on %s open_count=%d\n",
+ __FILE__,__LINE__, tty->driver->name, self->open_count );
+
+ schedule();
+ }
+
+ __set_current_state(TASK_RUNNING);
+ remove_wait_queue(&self->open_wait, &wait);
+
+ if (extra_count) {
+ /* ++ is not atomic, so this should be protected - Jean II */
+ spin_lock_irqsave(&self->spinlock, flags);
+ self->open_count++;
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ }
+ self->blocked_open--;
+
+ IRDA_DEBUG(1, "%s(%d):block_til_ready after blocking on %s open_count=%d\n",
+ __FILE__,__LINE__, tty->driver->name, self->open_count);
+
+ if (!retval)
+ self->flags |= ASYNC_NORMAL_ACTIVE;
+
+ return retval;
+}
+
+/*
+ * Function ircomm_tty_open (tty, filp)
+ *
+ * This routine is called when a particular tty device is opened. This
+ * routine is mandatory; if this routine is not filled in, the attempted
+ * open will fail with ENODEV.
+ */
+static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
+{
+ struct ircomm_tty_cb *self;
+ unsigned int line;
+ unsigned long flags;
+ int ret;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ line = tty->index;
+ if ((line < 0) || (line >= IRCOMM_TTY_PORTS)) {
+ return -ENODEV;
+ }
+
+ /* Check if instance already exists */
+ self = hashbin_lock_find(ircomm_tty, line, NULL);
+ if (!self) {
+ /* No, so make new instance */
+ self = kmalloc(sizeof(struct ircomm_tty_cb), GFP_KERNEL);
+ if (self == NULL) {
+ IRDA_ERROR("%s(), kmalloc failed!\n", __FUNCTION__);
+ return -ENOMEM;
+ }
+ memset(self, 0, sizeof(struct ircomm_tty_cb));
+
+ self->magic = IRCOMM_TTY_MAGIC;
+ self->flow = FLOW_STOP;
+
+ self->line = line;
+ INIT_WORK(&self->tqueue, ircomm_tty_do_softint, self);
+ self->max_header_size = IRCOMM_TTY_HDR_UNINITIALISED;
+ self->max_data_size = IRCOMM_TTY_DATA_UNINITIALISED;
+ self->close_delay = 5*HZ/10;
+ self->closing_wait = 30*HZ;
+
+ /* Init some important stuff */
+ init_timer(&self->watchdog_timer);
+ init_waitqueue_head(&self->open_wait);
+ init_waitqueue_head(&self->close_wait);
+ spin_lock_init(&self->spinlock);
+
+ /*
+ * Force TTY into raw mode by default which is usually what
+ * we want for IrCOMM and IrLPT. This way applications will
+ * not have to twiddle with printcap etc.
+ */
+ tty->termios->c_iflag = 0;
+ tty->termios->c_oflag = 0;
+
+ /* Insert into hash */
+ hashbin_insert(ircomm_tty, (irda_queue_t *) self, line, NULL);
+ }
+ /* ++ is not atomic, so this should be protected - Jean II */
+ spin_lock_irqsave(&self->spinlock, flags);
+ self->open_count++;
+
+ tty->driver_data = self;
+ self->tty = tty;
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ IRDA_DEBUG(1, "%s(), %s%d, count = %d\n", __FUNCTION__ , tty->driver->name,
+ self->line, self->open_count);
+
+ /* Not really used by us, but lets do it anyway */
+ self->tty->low_latency = (self->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+
+ /*
+ * If the port is the middle of closing, bail out now
+ */
+ if (tty_hung_up_p(filp) ||
+ test_bit(ASYNC_B_CLOSING, &self->flags)) {
+
+ /* Hm, why are we blocking on ASYNC_CLOSING if we
+ * do return -EAGAIN/-ERESTARTSYS below anyway?
+ * IMHO it's either not needed in the first place
+ * or for some reason we need to make sure the async
+ * closing has been finished - if so, wouldn't we
+ * probably better sleep uninterruptible?
+ */
+
+ if (wait_event_interruptible(self->close_wait, !test_bit(ASYNC_B_CLOSING, &self->flags))) {
+ IRDA_WARNING("%s - got signal while blocking on ASYNC_CLOSING!\n",
+ __FUNCTION__);
+ return -ERESTARTSYS;
+ }
+
+#ifdef SERIAL_DO_RESTART
+ return ((self->flags & ASYNC_HUP_NOTIFY) ?
+ -EAGAIN : -ERESTARTSYS);
+#else
+ return -EAGAIN;
+#endif
+ }
+
+ /* Check if this is a "normal" ircomm device, or an irlpt device */
+ if (line < 0x10) {
+ self->service_type = IRCOMM_3_WIRE | IRCOMM_9_WIRE;
+ self->settings.service_type = IRCOMM_9_WIRE; /* 9 wire as default */
+ /* Jan Kiszka -> add DSR/RI -> Conform to IrCOMM spec */
+ self->settings.dce = IRCOMM_CTS | IRCOMM_CD | IRCOMM_DSR | IRCOMM_RI; /* Default line settings */
+ IRDA_DEBUG(2, "%s(), IrCOMM device\n", __FUNCTION__ );
+ } else {
+ IRDA_DEBUG(2, "%s(), IrLPT device\n", __FUNCTION__ );
+ self->service_type = IRCOMM_3_WIRE_RAW;
+ self->settings.service_type = IRCOMM_3_WIRE_RAW; /* Default */
+ }
+
+ ret = ircomm_tty_startup(self);
+ if (ret)
+ return ret;
+
+ ret = ircomm_tty_block_til_ready(self, filp);
+ if (ret) {
+ IRDA_DEBUG(2,
+ "%s(), returning after block_til_ready with %d\n", __FUNCTION__ ,
+ ret);
+
+ return ret;
+ }
+ return 0;
+}
+
+/*
+ * Function ircomm_tty_close (tty, filp)
+ *
+ * This routine is called when a particular tty device is closed.
+ *
+ */
+static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long flags;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ if (!tty)
+ return;
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ if (tty_hung_up_p(filp)) {
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ IRDA_DEBUG(0, "%s(), returning 1\n", __FUNCTION__ );
+ return;
+ }
+
+ if ((tty->count == 1) && (self->open_count != 1)) {
+ /*
+ * Uh, oh. tty->count is 1, which means that the tty
+ * structure will be freed. state->count should always
+ * be one in these conditions. If it's greater than
+ * one, we've got real problems, since it means the
+ * serial port won't be shutdown.
+ */
+ IRDA_DEBUG(0, "%s(), bad serial port count; "
+ "tty->count is 1, state->count is %d\n", __FUNCTION__ ,
+ self->open_count);
+ self->open_count = 1;
+ }
+
+ if (--self->open_count < 0) {
+ IRDA_ERROR("%s(), bad serial port count for ttys%d: %d\n",
+ __FUNCTION__, self->line, self->open_count);
+ self->open_count = 0;
+ }
+ if (self->open_count) {
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ IRDA_DEBUG(0, "%s(), open count > 0\n", __FUNCTION__ );
+ return;
+ }
+
+ /* Hum... Should be test_and_set_bit ??? - Jean II */
+ set_bit(ASYNC_B_CLOSING, &self->flags);
+
+ /* We need to unlock here (we were unlocking at the end of this
+ * function), because tty_wait_until_sent() may schedule.
+ * I don't know if the rest should be protected somehow,
+ * so someone should check. - Jean II */
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ /*
+ * Now we wait for the transmit buffer to clear; and we notify
+ * the line discipline to only process XON/XOFF characters.
+ */
+ tty->closing = 1;
+ if (self->closing_wait != ASYNC_CLOSING_WAIT_NONE)
+ tty_wait_until_sent(tty, self->closing_wait);
+
+ ircomm_tty_shutdown(self);
+
+ if (tty->driver->flush_buffer)
+ tty->driver->flush_buffer(tty);
+ if (tty->ldisc.flush_buffer)
+ tty->ldisc.flush_buffer(tty);
+
+ tty->closing = 0;
+ self->tty = NULL;
+
+ if (self->blocked_open) {
+ if (self->close_delay) {
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(self->close_delay);
+ }
+ wake_up_interruptible(&self->open_wait);
+ }
+
+ self->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+ wake_up_interruptible(&self->close_wait);
+}
+
+/*
+ * Function ircomm_tty_flush_buffer (tty)
+ *
+ *
+ *
+ */
+static void ircomm_tty_flush_buffer(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ /*
+ * Let do_softint() do this to avoid race condition with
+ * do_softint() ;-)
+ */
+ schedule_work(&self->tqueue);
+}
+
+/*
+ * Function ircomm_tty_do_softint (private_)
+ *
+ * We use this routine to give the write wakeup to the user at at a
+ * safe time (as fast as possible after write have completed). This
+ * can be compared to the Tx interrupt.
+ */
+static void ircomm_tty_do_softint(void *private_)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) private_;
+ struct tty_struct *tty;
+ unsigned long flags;
+ struct sk_buff *skb, *ctrl_skb;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if (!self || self->magic != IRCOMM_TTY_MAGIC)
+ return;
+
+ tty = self->tty;
+ if (!tty)
+ return;
+
+ /* Unlink control buffer */
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ ctrl_skb = self->ctrl_skb;
+ self->ctrl_skb = NULL;
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ /* Flush control buffer if any */
+ if(ctrl_skb) {
+ if(self->flow == FLOW_START)
+ ircomm_control_request(self->ircomm, ctrl_skb);
+ /* Drop reference count - see ircomm_ttp_data_request(). */
+ dev_kfree_skb(ctrl_skb);
+ }
+
+ if (tty->hw_stopped)
+ return;
+
+ /* Unlink transmit buffer */
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ skb = self->tx_skb;
+ self->tx_skb = NULL;
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ /* Flush transmit buffer if any */
+ if (skb) {
+ ircomm_tty_do_event(self, IRCOMM_TTY_DATA_REQUEST, skb, NULL);
+ /* Drop reference count - see ircomm_ttp_data_request(). */
+ dev_kfree_skb(skb);
+ }
+
+ /* Check if user (still) wants to be waken up */
+ if ((tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
+ tty->ldisc.write_wakeup)
+ {
+ (tty->ldisc.write_wakeup)(tty);
+ }
+ wake_up_interruptible(&tty->write_wait);
+}
+
+/*
+ * Function ircomm_tty_write (tty, buf, count)
+ *
+ * This routine is called by the kernel to write a series of characters
+ * to the tty device. The characters may come from user space or kernel
+ * space. This routine will return the number of characters actually
+ * accepted for writing. This routine is mandatory.
+ */
+static int ircomm_tty_write(struct tty_struct *tty,
+ const unsigned char *buf, int count)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long flags;
+ struct sk_buff *skb;
+ int tailroom = 0;
+ int len = 0;
+ int size;
+
+ IRDA_DEBUG(2, "%s(), count=%d, hw_stopped=%d\n", __FUNCTION__ , count,
+ tty->hw_stopped);
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ /* We may receive packets from the TTY even before we have finished
+ * our setup. Not cool.
+ * The problem is that we don't know the final header and data size
+ * to create the proper skb, so any skb we would create would have
+ * bogus header and data size, so need care.
+ * We use a bogus header size to safely detect this condition.
+ * Another problem is that hw_stopped was set to 0 way before it
+ * should be, so we would drop this skb. It should now be fixed.
+ * One option is to not accept data until we are properly setup.
+ * But, I suspect that when it happens, the ppp line discipline
+ * just "drops" the data, which might screw up connect scripts.
+ * The second option is to create a "safe skb", with large header
+ * and small size (see ircomm_tty_open() for values).
+ * We just need to make sure that when the real values get filled,
+ * we don't mess up the original "safe skb" (see tx_data_size).
+ * Jean II */
+ if (self->max_header_size == IRCOMM_TTY_HDR_UNINITIALISED) {
+ IRDA_DEBUG(1, "%s() : not initialised\n", __FUNCTION__);
+#ifdef IRCOMM_NO_TX_BEFORE_INIT
+ /* We didn't consume anything, TTY will retry */
+ return 0;
+#endif
+ }
+
+ if (count < 1)
+ return 0;
+
+ /* Protect our manipulation of self->tx_skb and related */
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ /* Fetch current transmit buffer */
+ skb = self->tx_skb;
+
+ /*
+ * Send out all the data we get, possibly as multiple fragmented
+ * frames, but this will only happen if the data is larger than the
+ * max data size. The normal case however is just the opposite, and
+ * this function may be called multiple times, and will then actually
+ * defragment the data and send it out as one packet as soon as
+ * possible, but at a safer point in time
+ */
+ while (count) {
+ size = count;
+
+ /* Adjust data size to the max data size */
+ if (size > self->max_data_size)
+ size = self->max_data_size;
+
+ /*
+ * Do we already have a buffer ready for transmit, or do
+ * we need to allocate a new frame
+ */
+ if (skb) {
+ /*
+ * Any room for more data at the end of the current
+ * transmit buffer? Cannot use skb_tailroom, since
+ * dev_alloc_skb gives us a larger skb than we
+ * requested
+ * Note : use tx_data_size, because max_data_size
+ * may have changed and we don't want to overwrite
+ * the skb. - Jean II
+ */
+ if ((tailroom = (self->tx_data_size - skb->len)) > 0) {
+ /* Adjust data to tailroom */
+ if (size > tailroom)
+ size = tailroom;
+ } else {
+ /*
+ * Current transmit frame is full, so break
+ * out, so we can send it as soon as possible
+ */
+ break;
+ }
+ } else {
+ /* Prepare a full sized frame */
+ skb = dev_alloc_skb(self->max_data_size+
+ self->max_header_size);
+ if (!skb) {
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ return -ENOBUFS;
+ }
+ skb_reserve(skb, self->max_header_size);
+ self->tx_skb = skb;
+ /* Remember skb size because max_data_size may
+ * change later on - Jean II */
+ self->tx_data_size = self->max_data_size;
+ }
+
+ /* Copy data */
+ memcpy(skb_put(skb,size), buf + len, size);
+
+ count -= size;
+ len += size;
+ }
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ /*
+ * Schedule a new thread which will transmit the frame as soon
+ * as possible, but at a safe point in time. We do this so the
+ * "user" can give us data multiple times, as PPP does (because of
+ * its 256 byte tx buffer). We will then defragment and send out
+ * all this data as one single packet.
+ */
+ schedule_work(&self->tqueue);
+
+ return len;
+}
+
+/*
+ * Function ircomm_tty_write_room (tty)
+ *
+ * This routine returns the numbers of characters the tty driver will
+ * accept for queuing to be written. This number is subject to change as
+ * output buffers get emptied, or if the output flow control is acted.
+ */
+static int ircomm_tty_write_room(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long flags;
+ int ret;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+#ifdef IRCOMM_NO_TX_BEFORE_INIT
+ /* max_header_size tells us if the channel is initialised or not. */
+ if (self->max_header_size == IRCOMM_TTY_HDR_UNINITIALISED)
+ /* Don't bother us yet */
+ return 0;
+#endif
+
+ /* Check if we are allowed to transmit any data.
+ * hw_stopped is the regular flow control.
+ * Jean II */
+ if (tty->hw_stopped)
+ ret = 0;
+ else {
+ spin_lock_irqsave(&self->spinlock, flags);
+ if (self->tx_skb)
+ ret = self->tx_data_size - self->tx_skb->len;
+ else
+ ret = self->max_data_size;
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ }
+ IRDA_DEBUG(2, "%s(), ret=%d\n", __FUNCTION__ , ret);
+
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_wait_until_sent (tty, timeout)
+ *
+ * This routine waits until the device has written out all of the
+ * characters in its transmitter FIFO.
+ */
+static void ircomm_tty_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long orig_jiffies, poll_time;
+ unsigned long flags;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ orig_jiffies = jiffies;
+
+ /* Set poll time to 200 ms */
+ poll_time = IRDA_MIN(timeout, msecs_to_jiffies(200));
+
+ spin_lock_irqsave(&self->spinlock, flags);
+ while (self->tx_skb && self->tx_skb->len) {
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ current->state = TASK_INTERRUPTIBLE;
+ schedule_timeout(poll_time);
+ spin_lock_irqsave(&self->spinlock, flags);
+ if (signal_pending(current))
+ break;
+ if (timeout && time_after(jiffies, orig_jiffies + timeout))
+ break;
+ }
+ spin_unlock_irqrestore(&self->spinlock, flags);
+ current->state = TASK_RUNNING;
+}
+
+/*
+ * Function ircomm_tty_throttle (tty)
+ *
+ * This routine notifies the tty driver that input buffers for the line
+ * discipline are close to full, and it should somehow signal that no
+ * more characters should be sent to the tty.
+ */
+static void ircomm_tty_throttle(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ /* Software flow control? */
+ if (I_IXOFF(tty))
+ ircomm_tty_send_xchar(tty, STOP_CHAR(tty));
+
+ /* Hardware flow control? */
+ if (tty->termios->c_cflag & CRTSCTS) {
+ self->settings.dte &= ~IRCOMM_RTS;
+ self->settings.dte |= IRCOMM_DELTA_RTS;
+
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ }
+
+ ircomm_flow_request(self->ircomm, FLOW_STOP);
+}
+
+/*
+ * Function ircomm_tty_unthrottle (tty)
+ *
+ * This routine notifies the tty drivers that it should signals that
+ * characters can now be sent to the tty without fear of overrunning the
+ * input buffers of the line disciplines.
+ */
+static void ircomm_tty_unthrottle(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ /* Using software flow control? */
+ if (I_IXOFF(tty)) {
+ ircomm_tty_send_xchar(tty, START_CHAR(tty));
+ }
+
+ /* Using hardware flow control? */
+ if (tty->termios->c_cflag & CRTSCTS) {
+ self->settings.dte |= (IRCOMM_RTS|IRCOMM_DELTA_RTS);
+
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ IRDA_DEBUG(1, "%s(), FLOW_START\n", __FUNCTION__ );
+ }
+ ircomm_flow_request(self->ircomm, FLOW_START);
+}
+
+/*
+ * Function ircomm_tty_chars_in_buffer (tty)
+ *
+ * Indicates if there are any data in the buffer
+ *
+ */
+static int ircomm_tty_chars_in_buffer(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long flags;
+ int len = 0;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ if (self->tx_skb)
+ len = self->tx_skb->len;
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ return len;
+}
+
+static void ircomm_tty_shutdown(struct ircomm_tty_cb *self)
+{
+ unsigned long flags;
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ if (!test_and_clear_bit(ASYNC_B_INITIALIZED, &self->flags))
+ return;
+
+ ircomm_tty_detach_cable(self);
+
+ spin_lock_irqsave(&self->spinlock, flags);
+
+ del_timer(&self->watchdog_timer);
+
+ /* Free parameter buffer */
+ if (self->ctrl_skb) {
+ dev_kfree_skb(self->ctrl_skb);
+ self->ctrl_skb = NULL;
+ }
+
+ /* Free transmit buffer */
+ if (self->tx_skb) {
+ dev_kfree_skb(self->tx_skb);
+ self->tx_skb = NULL;
+ }
+
+ if (self->ircomm) {
+ ircomm_close(self->ircomm);
+ self->ircomm = NULL;
+ }
+
+ spin_unlock_irqrestore(&self->spinlock, flags);
+}
+
+/*
+ * Function ircomm_tty_hangup (tty)
+ *
+ * This routine notifies the tty driver that it should hangup the tty
+ * device.
+ *
+ */
+static void ircomm_tty_hangup(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned long flags;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ if (!tty)
+ return;
+
+ /* ircomm_tty_flush_buffer(tty); */
+ ircomm_tty_shutdown(self);
+
+ /* I guess we need to lock here - Jean II */
+ spin_lock_irqsave(&self->spinlock, flags);
+ self->flags &= ~ASYNC_NORMAL_ACTIVE;
+ self->tty = NULL;
+ self->open_count = 0;
+ spin_unlock_irqrestore(&self->spinlock, flags);
+
+ wake_up_interruptible(&self->open_wait);
+}
+
+/*
+ * Function ircomm_tty_send_xchar (tty, ch)
+ *
+ * This routine is used to send a high-priority XON/XOFF character to
+ * the device.
+ */
+static void ircomm_tty_send_xchar(struct tty_struct *tty, char ch)
+{
+ IRDA_DEBUG(0, "%s(), not impl\n", __FUNCTION__ );
+}
+
+/*
+ * Function ircomm_tty_start (tty)
+ *
+ * This routine notifies the tty driver that it resume sending
+ * characters to the tty device.
+ */
+void ircomm_tty_start(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ ircomm_flow_request(self->ircomm, FLOW_START);
+}
+
+/*
+ * Function ircomm_tty_stop (tty)
+ *
+ * This routine notifies the tty driver that it should stop outputting
+ * characters to the tty device.
+ */
+static void ircomm_tty_stop(struct tty_struct *tty)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ ircomm_flow_request(self->ircomm, FLOW_STOP);
+}
+
+/*
+ * Function ircomm_check_modem_status (self)
+ *
+ * Check for any changes in the DCE's line settings. This function should
+ * be called whenever the dce parameter settings changes, to update the
+ * flow control settings and other things
+ */
+void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self)
+{
+ struct tty_struct *tty;
+ int status;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ tty = self->tty;
+
+ status = self->settings.dce;
+
+ if (status & IRCOMM_DCE_DELTA_ANY) {
+ /*wake_up_interruptible(&self->delta_msr_wait);*/
+ }
+ if ((self->flags & ASYNC_CHECK_CD) && (status & IRCOMM_DELTA_CD)) {
+ IRDA_DEBUG(2,
+ "%s(), ircomm%d CD now %s...\n", __FUNCTION__ , self->line,
+ (status & IRCOMM_CD) ? "on" : "off");
+
+ if (status & IRCOMM_CD) {
+ wake_up_interruptible(&self->open_wait);
+ } else {
+ IRDA_DEBUG(2,
+ "%s(), Doing serial hangup..\n", __FUNCTION__ );
+ if (tty)
+ tty_hangup(tty);
+
+ /* Hangup will remote the tty, so better break out */
+ return;
+ }
+ }
+ if (self->flags & ASYNC_CTS_FLOW) {
+ if (tty->hw_stopped) {
+ if (status & IRCOMM_CTS) {
+ IRDA_DEBUG(2,
+ "%s(), CTS tx start...\n", __FUNCTION__ );
+ tty->hw_stopped = 0;
+
+ /* Wake up processes blocked on open */
+ wake_up_interruptible(&self->open_wait);
+
+ schedule_work(&self->tqueue);
+ return;
+ }
+ } else {
+ if (!(status & IRCOMM_CTS)) {
+ IRDA_DEBUG(2,
+ "%s(), CTS tx stop...\n", __FUNCTION__ );
+ tty->hw_stopped = 1;
+ }
+ }
+ }
+}
+
+/*
+ * Function ircomm_tty_data_indication (instance, sap, skb)
+ *
+ * Handle incoming data, and deliver it to the line discipline
+ *
+ */
+static int ircomm_tty_data_indication(void *instance, void *sap,
+ struct sk_buff *skb)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ if (!self->tty) {
+ IRDA_DEBUG(0, "%s(), no tty!\n", __FUNCTION__ );
+ return 0;
+ }
+
+ /*
+ * If we receive data when hardware is stopped then something is wrong.
+ * We try to poll the peers line settings to check if we are up todate.
+ * Devices like WinCE can do this, and since they don't send any
+ * params, we can just as well declare the hardware for running.
+ */
+ if (self->tty->hw_stopped && (self->flow == FLOW_START)) {
+ IRDA_DEBUG(0, "%s(), polling for line settings!\n", __FUNCTION__ );
+ ircomm_param_request(self, IRCOMM_POLL, TRUE);
+
+ /* We can just as well declare the hardware for running */
+ ircomm_tty_send_initial_parameters(self);
+ ircomm_tty_link_established(self);
+ }
+
+ /*
+ * Just give it over to the line discipline. There is no need to
+ * involve the flip buffers, since we are not running in an interrupt
+ * handler
+ */
+ self->tty->ldisc.receive_buf(self->tty, skb->data, NULL, skb->len);
+
+ /* No need to kfree_skb - see ircomm_ttp_data_indication() */
+
+ return 0;
+}
+
+/*
+ * Function ircomm_tty_control_indication (instance, sap, skb)
+ *
+ * Parse all incoming parameters (easy!)
+ *
+ */
+static int ircomm_tty_control_indication(void *instance, void *sap,
+ struct sk_buff *skb)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ int clen;
+
+ IRDA_DEBUG(4, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+ IRDA_ASSERT(skb != NULL, return -1;);
+
+ clen = skb->data[0];
+
+ irda_param_extract_all(self, skb->data+1, IRDA_MIN(skb->len-1, clen),
+ &ircomm_param_info);
+
+ /* No need to kfree_skb - see ircomm_control_indication() */
+
+ return 0;
+}
+
+/*
+ * Function ircomm_tty_flow_indication (instance, sap, cmd)
+ *
+ * This function is called by IrTTP when it wants us to slow down the
+ * transmission of data. We just mark the hardware as stopped, and wait
+ * for IrTTP to notify us that things are OK again.
+ */
+static void ircomm_tty_flow_indication(void *instance, void *sap,
+ LOCAL_FLOW cmd)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ struct tty_struct *tty;
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ tty = self->tty;
+
+ switch (cmd) {
+ case FLOW_START:
+ IRDA_DEBUG(2, "%s(), hw start!\n", __FUNCTION__ );
+ tty->hw_stopped = 0;
+
+ /* ircomm_tty_do_softint will take care of the rest */
+ schedule_work(&self->tqueue);
+ break;
+ default: /* If we get here, something is very wrong, better stop */
+ case FLOW_STOP:
+ IRDA_DEBUG(2, "%s(), hw stopped!\n", __FUNCTION__ );
+ tty->hw_stopped = 1;
+ break;
+ }
+ self->flow = cmd;
+}
+
+static int ircomm_tty_line_info(struct ircomm_tty_cb *self, char *buf)
+{
+ int ret=0;
+
+ ret += sprintf(buf+ret, "State: %s\n", ircomm_tty_state[self->state]);
+
+ ret += sprintf(buf+ret, "Service type: ");
+ if (self->service_type & IRCOMM_9_WIRE)
+ ret += sprintf(buf+ret, "9_WIRE");
+ else if (self->service_type & IRCOMM_3_WIRE)
+ ret += sprintf(buf+ret, "3_WIRE");
+ else if (self->service_type & IRCOMM_3_WIRE_RAW)
+ ret += sprintf(buf+ret, "3_WIRE_RAW");
+ else
+ ret += sprintf(buf+ret, "No common service type!\n");
+ ret += sprintf(buf+ret, "\n");
+
+ ret += sprintf(buf+ret, "Port name: %s\n", self->settings.port_name);
+
+ ret += sprintf(buf+ret, "DTE status: ");
+ if (self->settings.dte & IRCOMM_RTS)
+ ret += sprintf(buf+ret, "RTS|");
+ if (self->settings.dte & IRCOMM_DTR)
+ ret += sprintf(buf+ret, "DTR|");
+ if (self->settings.dte)
+ ret--; /* remove the last | */
+ ret += sprintf(buf+ret, "\n");
+
+ ret += sprintf(buf+ret, "DCE status: ");
+ if (self->settings.dce & IRCOMM_CTS)
+ ret += sprintf(buf+ret, "CTS|");
+ if (self->settings.dce & IRCOMM_DSR)
+ ret += sprintf(buf+ret, "DSR|");
+ if (self->settings.dce & IRCOMM_CD)
+ ret += sprintf(buf+ret, "CD|");
+ if (self->settings.dce & IRCOMM_RI)
+ ret += sprintf(buf+ret, "RI|");
+ if (self->settings.dce)
+ ret--; /* remove the last | */
+ ret += sprintf(buf+ret, "\n");
+
+ ret += sprintf(buf+ret, "Configuration: ");
+ if (!self->settings.null_modem)
+ ret += sprintf(buf+ret, "DTE <-> DCE\n");
+ else
+ ret += sprintf(buf+ret,
+ "DTE <-> DTE (null modem emulation)\n");
+
+ ret += sprintf(buf+ret, "Data rate: %d\n", self->settings.data_rate);
+
+ ret += sprintf(buf+ret, "Flow control: ");
+ if (self->settings.flow_control & IRCOMM_XON_XOFF_IN)
+ ret += sprintf(buf+ret, "XON_XOFF_IN|");
+ if (self->settings.flow_control & IRCOMM_XON_XOFF_OUT)
+ ret += sprintf(buf+ret, "XON_XOFF_OUT|");
+ if (self->settings.flow_control & IRCOMM_RTS_CTS_IN)
+ ret += sprintf(buf+ret, "RTS_CTS_IN|");
+ if (self->settings.flow_control & IRCOMM_RTS_CTS_OUT)
+ ret += sprintf(buf+ret, "RTS_CTS_OUT|");
+ if (self->settings.flow_control & IRCOMM_DSR_DTR_IN)
+ ret += sprintf(buf+ret, "DSR_DTR_IN|");
+ if (self->settings.flow_control & IRCOMM_DSR_DTR_OUT)
+ ret += sprintf(buf+ret, "DSR_DTR_OUT|");
+ if (self->settings.flow_control & IRCOMM_ENQ_ACK_IN)
+ ret += sprintf(buf+ret, "ENQ_ACK_IN|");
+ if (self->settings.flow_control & IRCOMM_ENQ_ACK_OUT)
+ ret += sprintf(buf+ret, "ENQ_ACK_OUT|");
+ if (self->settings.flow_control)
+ ret--; /* remove the last | */
+ ret += sprintf(buf+ret, "\n");
+
+ ret += sprintf(buf+ret, "Flags: ");
+ if (self->flags & ASYNC_CTS_FLOW)
+ ret += sprintf(buf+ret, "ASYNC_CTS_FLOW|");
+ if (self->flags & ASYNC_CHECK_CD)
+ ret += sprintf(buf+ret, "ASYNC_CHECK_CD|");
+ if (self->flags & ASYNC_INITIALIZED)
+ ret += sprintf(buf+ret, "ASYNC_INITIALIZED|");
+ if (self->flags & ASYNC_LOW_LATENCY)
+ ret += sprintf(buf+ret, "ASYNC_LOW_LATENCY|");
+ if (self->flags & ASYNC_CLOSING)
+ ret += sprintf(buf+ret, "ASYNC_CLOSING|");
+ if (self->flags & ASYNC_NORMAL_ACTIVE)
+ ret += sprintf(buf+ret, "ASYNC_NORMAL_ACTIVE|");
+ if (self->flags)
+ ret--; /* remove the last | */
+ ret += sprintf(buf+ret, "\n");
+
+ ret += sprintf(buf+ret, "Role: %s\n", self->client ?
+ "client" : "server");
+ ret += sprintf(buf+ret, "Open count: %d\n", self->open_count);
+ ret += sprintf(buf+ret, "Max data size: %d\n", self->max_data_size);
+ ret += sprintf(buf+ret, "Max header size: %d\n", self->max_header_size);
+
+ if (self->tty)
+ ret += sprintf(buf+ret, "Hardware: %s\n",
+ self->tty->hw_stopped ? "Stopped" : "Running");
+
+ ret += sprintf(buf+ret, "\n");
+ return ret;
+}
+
+
+/*
+ * Function ircomm_tty_read_proc (buf, start, offset, len, eof, unused)
+ *
+ *
+ *
+ */
+#ifdef CONFIG_PROC_FS
+static int ircomm_tty_read_proc(char *buf, char **start, off_t offset, int len,
+ int *eof, void *unused)
+{
+ struct ircomm_tty_cb *self;
+ int count = 0, l;
+ off_t begin = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&ircomm_tty->hb_spinlock, flags);
+
+ self = (struct ircomm_tty_cb *) hashbin_get_first(ircomm_tty);
+ while ((self != NULL) && (count < 4000)) {
+ if (self->magic != IRCOMM_TTY_MAGIC)
+ break;
+
+ l = ircomm_tty_line_info(self, buf + count);
+ count += l;
+ if (count+begin > offset+len)
+ goto done;
+ if (count+begin < offset) {
+ begin += count;
+ count = 0;
+ }
+
+ self = (struct ircomm_tty_cb *) hashbin_get_next(ircomm_tty);
+ }
+ *eof = 1;
+done:
+ spin_unlock_irqrestore(&ircomm_tty->hb_spinlock, flags);
+
+ if (offset >= count+begin)
+ return 0;
+ *start = buf + (offset-begin);
+ return ((len < begin+count-offset) ? len : begin+count-offset);
+}
+#endif /* CONFIG_PROC_FS */
+
+MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no>");
+MODULE_DESCRIPTION("IrCOMM serial TTY driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CHARDEV_MAJOR(IRCOMM_TTY_MAJOR);
+
+module_init(ircomm_tty_init);
+module_exit(ircomm_tty_cleanup);
diff --git a/net/irda/ircomm/ircomm_tty_attach.c b/net/irda/ircomm/ircomm_tty_attach.c
new file mode 100644
index 0000000..99f5edd
--- /dev/null
+++ b/net/irda/ircomm/ircomm_tty_attach.c
@@ -0,0 +1,1006 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_tty_attach.c
+ * Version:
+ * Description: Code for attaching the serial driver to IrCOMM
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Sat Jun 5 17:42:00 1999
+ * Modified at: Tue Jan 4 14:20:49 2000
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
+ * Copyright (c) 2000-2003 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
+ *
+ ********************************************************************/
+
+#include <linux/sched.h>
+#include <linux/init.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irlmp.h>
+#include <net/irda/iriap.h>
+#include <net/irda/irttp.h>
+#include <net/irda/irias_object.h>
+#include <net/irda/parameters.h>
+
+#include <net/irda/ircomm_core.h>
+#include <net/irda/ircomm_param.h>
+#include <net/irda/ircomm_event.h>
+
+#include <net/irda/ircomm_tty.h>
+#include <net/irda/ircomm_tty_attach.h>
+
+static void ircomm_tty_ias_register(struct ircomm_tty_cb *self);
+static void ircomm_tty_discovery_indication(discinfo_t *discovery,
+ DISCOVERY_MODE mode,
+ void *priv);
+static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
+ struct ias_value *value, void *priv);
+static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
+ int timeout);
+static void ircomm_tty_watchdog_timer_expired(void *data);
+
+static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+static int ircomm_tty_state_search(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+static int ircomm_tty_state_query_parameters(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+static int ircomm_tty_state_query_lsap_sel(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+static int ircomm_tty_state_setup(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+static int ircomm_tty_state_ready(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info);
+
+char *ircomm_tty_state[] = {
+ "IRCOMM_TTY_IDLE",
+ "IRCOMM_TTY_SEARCH",
+ "IRCOMM_TTY_QUERY_PARAMETERS",
+ "IRCOMM_TTY_QUERY_LSAP_SEL",
+ "IRCOMM_TTY_SETUP",
+ "IRCOMM_TTY_READY",
+ "*** ERROR *** ",
+};
+
+#ifdef CONFIG_IRDA_DEBUG
+static char *ircomm_tty_event[] = {
+ "IRCOMM_TTY_ATTACH_CABLE",
+ "IRCOMM_TTY_DETACH_CABLE",
+ "IRCOMM_TTY_DATA_REQUEST",
+ "IRCOMM_TTY_DATA_INDICATION",
+ "IRCOMM_TTY_DISCOVERY_REQUEST",
+ "IRCOMM_TTY_DISCOVERY_INDICATION",
+ "IRCOMM_TTY_CONNECT_CONFIRM",
+ "IRCOMM_TTY_CONNECT_INDICATION",
+ "IRCOMM_TTY_DISCONNECT_REQUEST",
+ "IRCOMM_TTY_DISCONNECT_INDICATION",
+ "IRCOMM_TTY_WD_TIMER_EXPIRED",
+ "IRCOMM_TTY_GOT_PARAMETERS",
+ "IRCOMM_TTY_GOT_LSAPSEL",
+ "*** ERROR ****",
+};
+#endif /* CONFIG_IRDA_DEBUG */
+
+static int (*state[])(struct ircomm_tty_cb *self, IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb, struct ircomm_tty_info *info) =
+{
+ ircomm_tty_state_idle,
+ ircomm_tty_state_search,
+ ircomm_tty_state_query_parameters,
+ ircomm_tty_state_query_lsap_sel,
+ ircomm_tty_state_setup,
+ ircomm_tty_state_ready,
+};
+
+/*
+ * Function ircomm_tty_attach_cable (driver)
+ *
+ * Try to attach cable (IrCOMM link). This function will only return
+ * when the link has been connected, or if an error condition occurs.
+ * If success, the return value is the resulting service type.
+ */
+int ircomm_tty_attach_cable(struct ircomm_tty_cb *self)
+{
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ /* Check if somebody has already connected to us */
+ if (ircomm_is_connected(self->ircomm)) {
+ IRDA_DEBUG(0, "%s(), already connected!\n", __FUNCTION__ );
+ return 0;
+ }
+
+ /* Make sure nobody tries to write before the link is up */
+ self->tty->hw_stopped = 1;
+
+ ircomm_tty_ias_register(self);
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_ATTACH_CABLE, NULL, NULL);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_detach_cable (driver)
+ *
+ * Detach cable, or cable has been detached by peer
+ *
+ */
+void ircomm_tty_detach_cable(struct ircomm_tty_cb *self)
+{
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ del_timer(&self->watchdog_timer);
+
+ /* Remove discovery handler */
+ if (self->ckey) {
+ irlmp_unregister_client(self->ckey);
+ self->ckey = NULL;
+ }
+ /* Remove IrCOMM hint bits */
+ if (self->skey) {
+ irlmp_unregister_service(self->skey);
+ self->skey = NULL;
+ }
+
+ if (self->iriap) {
+ iriap_close(self->iriap);
+ self->iriap = NULL;
+ }
+
+ /* Remove LM-IAS object */
+ if (self->obj) {
+ irias_delete_object(self->obj);
+ self->obj = NULL;
+ }
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_DETACH_CABLE, NULL, NULL);
+
+ /* Reset some values */
+ self->daddr = self->saddr = 0;
+ self->dlsap_sel = self->slsap_sel = 0;
+
+ memset(&self->settings, 0, sizeof(struct ircomm_params));
+}
+
+/*
+ * Function ircomm_tty_ias_register (self)
+ *
+ * Register with LM-IAS depending on which service type we are
+ *
+ */
+static void ircomm_tty_ias_register(struct ircomm_tty_cb *self)
+{
+ __u8 oct_seq[6];
+ __u16 hints;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ /* Compute hint bits based on service */
+ hints = irlmp_service_to_hint(S_COMM);
+ if (self->service_type & IRCOMM_3_WIRE_RAW)
+ hints |= irlmp_service_to_hint(S_PRINTER);
+
+ /* Advertise IrCOMM hint bit in discovery */
+ if (!self->skey)
+ self->skey = irlmp_register_service(hints);
+ /* Set up a discovery handler */
+ if (!self->ckey)
+ self->ckey = irlmp_register_client(hints,
+ ircomm_tty_discovery_indication,
+ NULL, (void *) self);
+
+ /* If already done, no need to do it again */
+ if (self->obj)
+ return;
+
+ if (self->service_type & IRCOMM_3_WIRE_RAW) {
+ /* Register IrLPT with LM-IAS */
+ self->obj = irias_new_object("IrLPT", IAS_IRLPT_ID);
+ irias_add_integer_attrib(self->obj, "IrDA:IrLMP:LsapSel",
+ self->slsap_sel, IAS_KERNEL_ATTR);
+ } else {
+ /* Register IrCOMM with LM-IAS */
+ self->obj = irias_new_object("IrDA:IrCOMM", IAS_IRCOMM_ID);
+ irias_add_integer_attrib(self->obj, "IrDA:TinyTP:LsapSel",
+ self->slsap_sel, IAS_KERNEL_ATTR);
+
+ /* Code the parameters into the buffer */
+ irda_param_pack(oct_seq, "bbbbbb",
+ IRCOMM_SERVICE_TYPE, 1, self->service_type,
+ IRCOMM_PORT_TYPE, 1, IRCOMM_SERIAL);
+
+ /* Register parameters with LM-IAS */
+ irias_add_octseq_attrib(self->obj, "Parameters", oct_seq, 6,
+ IAS_KERNEL_ATTR);
+ }
+ irias_insert_object(self->obj);
+}
+
+/*
+ * Function ircomm_tty_ias_unregister (self)
+ *
+ * Remove our IAS object and client hook while connected.
+ *
+ */
+static void ircomm_tty_ias_unregister(struct ircomm_tty_cb *self)
+{
+ /* Remove LM-IAS object now so it is not reused.
+ * IrCOMM deals very poorly with multiple incoming connections.
+ * It should looks a lot more like IrNET, and "dup" a server TSAP
+ * to the application TSAP (based on various rules).
+ * This is a cheap workaround allowing multiple clients to
+ * connect to us. It will not always work.
+ * Each IrCOMM socket has an IAS entry. Incoming connection will
+ * pick the first one found. So, when we are fully connected,
+ * we remove our IAS entries so that the next IAS entry is used.
+ * We do that for *both* client and server, because a server
+ * can also create client instances.
+ * Jean II */
+ if (self->obj) {
+ irias_delete_object(self->obj);
+ self->obj = NULL;
+ }
+
+#if 0
+ /* Remove discovery handler.
+ * While we are connected, we no longer need to receive
+ * discovery events. This would be the case if there is
+ * multiple IrLAP interfaces. Jean II */
+ if (self->ckey) {
+ irlmp_unregister_client(self->ckey);
+ self->ckey = NULL;
+ }
+#endif
+}
+
+/*
+ * Function ircomm_send_initial_parameters (self)
+ *
+ * Send initial parameters to the remote IrCOMM device. These parameters
+ * must be sent before any data.
+ */
+int ircomm_tty_send_initial_parameters(struct ircomm_tty_cb *self)
+{
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (self->service_type & IRCOMM_3_WIRE_RAW)
+ return 0;
+
+ /*
+ * Set default values, but only if the application for some reason
+ * haven't set them already
+ */
+ IRDA_DEBUG(2, "%s(), data-rate = %d\n", __FUNCTION__ ,
+ self->settings.data_rate);
+ if (!self->settings.data_rate)
+ self->settings.data_rate = 9600;
+ IRDA_DEBUG(2, "%s(), data-format = %d\n", __FUNCTION__ ,
+ self->settings.data_format);
+ if (!self->settings.data_format)
+ self->settings.data_format = IRCOMM_WSIZE_8; /* 8N1 */
+
+ IRDA_DEBUG(2, "%s(), flow-control = %d\n", __FUNCTION__ ,
+ self->settings.flow_control);
+ /*self->settings.flow_control = IRCOMM_RTS_CTS_IN|IRCOMM_RTS_CTS_OUT;*/
+
+ /* Do not set delta values for the initial parameters */
+ self->settings.dte = IRCOMM_DTR | IRCOMM_RTS;
+
+ /* Only send service type parameter when we are the client */
+ if (self->client)
+ ircomm_param_request(self, IRCOMM_SERVICE_TYPE, FALSE);
+ ircomm_param_request(self, IRCOMM_DATA_RATE, FALSE);
+ ircomm_param_request(self, IRCOMM_DATA_FORMAT, FALSE);
+
+ /* For a 3 wire service, we just flush the last parameter and return */
+ if (self->settings.service_type == IRCOMM_3_WIRE) {
+ ircomm_param_request(self, IRCOMM_FLOW_CONTROL, TRUE);
+ return 0;
+ }
+
+ /* Only 9-wire service types continue here */
+ ircomm_param_request(self, IRCOMM_FLOW_CONTROL, FALSE);
+#if 0
+ ircomm_param_request(self, IRCOMM_XON_XOFF, FALSE);
+ ircomm_param_request(self, IRCOMM_ENQ_ACK, FALSE);
+#endif
+ /* Notify peer that we are ready to receive data */
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+
+ return 0;
+}
+
+/*
+ * Function ircomm_tty_discovery_indication (discovery)
+ *
+ * Remote device is discovered, try query the remote IAS to see which
+ * device it is, and which services it has.
+ *
+ */
+static void ircomm_tty_discovery_indication(discinfo_t *discovery,
+ DISCOVERY_MODE mode,
+ void *priv)
+{
+ struct ircomm_tty_cb *self;
+ struct ircomm_tty_info info;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ /* Important note :
+ * We need to drop all passive discoveries.
+ * The LSAP management of IrComm is deficient and doesn't deal
+ * with the case of two instance connecting to each other
+ * simultaneously (it will deadlock in LMP).
+ * The proper fix would be to use the same technique as in IrNET,
+ * to have one server socket and separate instances for the
+ * connecting/connected socket.
+ * The workaround is to drop passive discovery, which drastically
+ * reduce the probability of this happening.
+ * Jean II */
+ if(mode == DISCOVERY_PASSIVE)
+ return;
+
+ info.daddr = discovery->daddr;
+ info.saddr = discovery->saddr;
+
+ /* FIXME. We have a locking problem on the hashbin here.
+ * We probably need to use hashbin_find_next(), but we first
+ * need to ensure that "line" is unique. - Jean II */
+ self = (struct ircomm_tty_cb *) hashbin_get_first(ircomm_tty);
+ while (self != NULL) {
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_DISCOVERY_INDICATION,
+ NULL, &info);
+
+ self = (struct ircomm_tty_cb *) hashbin_get_next(ircomm_tty);
+ }
+}
+
+/*
+ * Function ircomm_tty_disconnect_indication (instance, sap, reason, skb)
+ *
+ * Link disconnected
+ *
+ */
+void ircomm_tty_disconnect_indication(void *instance, void *sap,
+ LM_REASON reason,
+ struct sk_buff *skb)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ if (!self->tty)
+ return;
+
+ /* This will stop control data transfers */
+ self->flow = FLOW_STOP;
+
+ /* Stop data transfers */
+ self->tty->hw_stopped = 1;
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_DISCONNECT_INDICATION, NULL,
+ NULL);
+}
+
+/*
+ * Function ircomm_tty_getvalue_confirm (result, obj_id, value, priv)
+ *
+ * Got result from the IAS query we make
+ *
+ */
+static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
+ struct ias_value *value,
+ void *priv)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) priv;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ /* We probably don't need to make any more queries */
+ iriap_close(self->iriap);
+ self->iriap = NULL;
+
+ /* Check if request succeeded */
+ if (result != IAS_SUCCESS) {
+ IRDA_DEBUG(4, "%s(), got NULL value!\n", __FUNCTION__ );
+ return;
+ }
+
+ switch (value->type) {
+ case IAS_OCT_SEQ:
+ IRDA_DEBUG(2, "%s(), got octet sequence\n", __FUNCTION__ );
+
+ irda_param_extract_all(self, value->t.oct_seq, value->len,
+ &ircomm_param_info);
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_GOT_PARAMETERS, NULL,
+ NULL);
+ break;
+ case IAS_INTEGER:
+ /* Got LSAP selector */
+ IRDA_DEBUG(2, "%s(), got lsapsel = %d\n", __FUNCTION__ ,
+ value->t.integer);
+
+ if (value->t.integer == -1) {
+ IRDA_DEBUG(0, "%s(), invalid value!\n", __FUNCTION__ );
+ } else
+ self->dlsap_sel = value->t.integer;
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_GOT_LSAPSEL, NULL, NULL);
+ break;
+ case IAS_MISSING:
+ IRDA_DEBUG(0, "%s(), got IAS_MISSING\n", __FUNCTION__ );
+ break;
+ default:
+ IRDA_DEBUG(0, "%s(), got unknown type!\n", __FUNCTION__ );
+ break;
+ }
+ irias_delete_value(value);
+}
+
+/*
+ * Function ircomm_tty_connect_confirm (instance, sap, qos, max_sdu_size, skb)
+ *
+ * Connection confirmed
+ *
+ */
+void ircomm_tty_connect_confirm(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_data_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ self->client = TRUE;
+ self->max_data_size = max_data_size;
+ self->max_header_size = max_header_size;
+ self->flow = FLOW_START;
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_CONNECT_CONFIRM, NULL, NULL);
+
+ /* No need to kfree_skb - see ircomm_ttp_connect_confirm() */
+}
+
+/*
+ * Function ircomm_tty_connect_indication (instance, sap, qos, max_sdu_size,
+ * skb)
+ *
+ * we are discovered and being requested to connect by remote device !
+ *
+ */
+void ircomm_tty_connect_indication(void *instance, void *sap,
+ struct qos_info *qos,
+ __u32 max_data_size,
+ __u8 max_header_size,
+ struct sk_buff *skb)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) instance;
+ int clen;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ self->client = FALSE;
+ self->max_data_size = max_data_size;
+ self->max_header_size = max_header_size;
+ self->flow = FLOW_START;
+
+ clen = skb->data[0];
+ if (clen)
+ irda_param_extract_all(self, skb->data+1,
+ IRDA_MIN(skb->len, clen),
+ &ircomm_param_info);
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_CONNECT_INDICATION, NULL, NULL);
+
+ /* No need to kfree_skb - see ircomm_ttp_connect_indication() */
+}
+
+/*
+ * Function ircomm_tty_link_established (self)
+ *
+ * Called when the IrCOMM link is established
+ *
+ */
+void ircomm_tty_link_established(struct ircomm_tty_cb *self)
+{
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ if (!self->tty)
+ return;
+
+ del_timer(&self->watchdog_timer);
+
+ /*
+ * IrCOMM link is now up, and if we are not using hardware
+ * flow-control, then declare the hardware as running. Otherwise we
+ * will have to wait for the peer device (DCE) to raise the CTS
+ * line.
+ */
+ if ((self->flags & ASYNC_CTS_FLOW) && ((self->settings.dce & IRCOMM_CTS) == 0)) {
+ IRDA_DEBUG(0, "%s(), waiting for CTS ...\n", __FUNCTION__ );
+ return;
+ } else {
+ IRDA_DEBUG(1, "%s(), starting hardware!\n", __FUNCTION__ );
+
+ self->tty->hw_stopped = 0;
+
+ /* Wake up processes blocked on open */
+ wake_up_interruptible(&self->open_wait);
+ }
+
+ schedule_work(&self->tqueue);
+}
+
+/*
+ * Function ircomm_tty_start_watchdog_timer (self, timeout)
+ *
+ * Start the watchdog timer. This timer is used to make sure that any
+ * connection attempt is successful, and if not, we will retry after
+ * the timeout
+ */
+static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
+ int timeout)
+{
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
+ ircomm_tty_watchdog_timer_expired);
+}
+
+/*
+ * Function ircomm_tty_watchdog_timer_expired (data)
+ *
+ * Called when the connect procedure have taken to much time.
+ *
+ */
+static void ircomm_tty_watchdog_timer_expired(void *data)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) data;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ ircomm_tty_do_event(self, IRCOMM_TTY_WD_TIMER_EXPIRED, NULL, NULL);
+}
+
+
+/*
+ * Function ircomm_tty_do_event (self, event, skb)
+ *
+ * Process event
+ *
+ */
+int ircomm_tty_do_event(struct ircomm_tty_cb *self, IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb, struct ircomm_tty_info *info)
+{
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+
+ return (*state[self->state])(self, event, skb, info);
+}
+
+/*
+ * Function ircomm_tty_next_state (self, state)
+ *
+ * Switch state
+ *
+ */
+static inline void ircomm_tty_next_state(struct ircomm_tty_cb *self, IRCOMM_TTY_STATE state)
+{
+ /*
+ IRDA_ASSERT(self != NULL, return;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
+
+ IRDA_DEBUG(2, "%s: next state=%s, service type=%d\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], self->service_type);
+ */
+ self->state = state;
+}
+
+/*
+ * Function ircomm_tty_state_idle (self, event, skb, info)
+ *
+ * Just hanging around
+ *
+ */
+static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+ switch (event) {
+ case IRCOMM_TTY_ATTACH_CABLE:
+ /* Try to discover any remote devices */
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
+
+ irlmp_discovery_request(DISCOVERY_DEFAULT_SLOTS);
+ break;
+ case IRCOMM_TTY_DISCOVERY_INDICATION:
+ self->daddr = info->daddr;
+ self->saddr = info->saddr;
+
+ if (self->iriap) {
+ IRDA_WARNING("%s(), busy with a previous query\n",
+ __FUNCTION__);
+ return -EBUSY;
+ }
+
+ self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
+ ircomm_tty_getvalue_confirm);
+
+ iriap_getvaluebyclass_request(self->iriap,
+ self->saddr, self->daddr,
+ "IrDA:IrCOMM", "Parameters");
+
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ ircomm_tty_next_state(self, IRCOMM_TTY_QUERY_PARAMETERS);
+ break;
+ case IRCOMM_TTY_CONNECT_INDICATION:
+ del_timer(&self->watchdog_timer);
+
+ /* Accept connection */
+ ircomm_connect_response(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_WD_TIMER_EXPIRED:
+ /* Just stay idle */
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_state_search (self, event, skb, info)
+ *
+ * Trying to discover an IrCOMM device
+ *
+ */
+static int ircomm_tty_state_search(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+
+ switch (event) {
+ case IRCOMM_TTY_DISCOVERY_INDICATION:
+ self->daddr = info->daddr;
+ self->saddr = info->saddr;
+
+ if (self->iriap) {
+ IRDA_WARNING("%s(), busy with a previous query\n",
+ __FUNCTION__);
+ return -EBUSY;
+ }
+
+ self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
+ ircomm_tty_getvalue_confirm);
+
+ if (self->service_type == IRCOMM_3_WIRE_RAW) {
+ iriap_getvaluebyclass_request(self->iriap, self->saddr,
+ self->daddr, "IrLPT",
+ "IrDA:IrLMP:LsapSel");
+ ircomm_tty_next_state(self, IRCOMM_TTY_QUERY_LSAP_SEL);
+ } else {
+ iriap_getvaluebyclass_request(self->iriap, self->saddr,
+ self->daddr,
+ "IrDA:IrCOMM",
+ "Parameters");
+
+ ircomm_tty_next_state(self, IRCOMM_TTY_QUERY_PARAMETERS);
+ }
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ break;
+ case IRCOMM_TTY_CONNECT_INDICATION:
+ del_timer(&self->watchdog_timer);
+ ircomm_tty_ias_unregister(self);
+
+ /* Accept connection */
+ ircomm_connect_response(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_WD_TIMER_EXPIRED:
+#if 1
+ /* Give up */
+#else
+ /* Try to discover any remote devices */
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ irlmp_discovery_request(DISCOVERY_DEFAULT_SLOTS);
+#endif
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_state_query (self, event, skb, info)
+ *
+ * Querying the remote LM-IAS for IrCOMM parameters
+ *
+ */
+static int ircomm_tty_state_query_parameters(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+
+ switch (event) {
+ case IRCOMM_TTY_GOT_PARAMETERS:
+ if (self->iriap) {
+ IRDA_WARNING("%s(), busy with a previous query\n",
+ __FUNCTION__);
+ return -EBUSY;
+ }
+
+ self->iriap = iriap_open(LSAP_ANY, IAS_CLIENT, self,
+ ircomm_tty_getvalue_confirm);
+
+ iriap_getvaluebyclass_request(self->iriap, self->saddr,
+ self->daddr, "IrDA:IrCOMM",
+ "IrDA:TinyTP:LsapSel");
+
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ ircomm_tty_next_state(self, IRCOMM_TTY_QUERY_LSAP_SEL);
+ break;
+ case IRCOMM_TTY_WD_TIMER_EXPIRED:
+ /* Go back to search mode */
+ ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ break;
+ case IRCOMM_TTY_CONNECT_INDICATION:
+ del_timer(&self->watchdog_timer);
+ ircomm_tty_ias_unregister(self);
+
+ /* Accept connection */
+ ircomm_connect_response(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_state_query_lsap_sel (self, event, skb, info)
+ *
+ * Query remote LM-IAS for the LSAP selector which we can connect to
+ *
+ */
+static int ircomm_tty_state_query_lsap_sel(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+
+ switch (event) {
+ case IRCOMM_TTY_GOT_LSAPSEL:
+ /* Connect to remote device */
+ ret = ircomm_connect_request(self->ircomm, self->dlsap_sel,
+ self->saddr, self->daddr,
+ NULL, self->service_type);
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ ircomm_tty_next_state(self, IRCOMM_TTY_SETUP);
+ break;
+ case IRCOMM_TTY_WD_TIMER_EXPIRED:
+ /* Go back to search mode */
+ ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ break;
+ case IRCOMM_TTY_CONNECT_INDICATION:
+ del_timer(&self->watchdog_timer);
+ ircomm_tty_ias_unregister(self);
+
+ /* Accept connection */
+ ircomm_connect_response(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_state_setup (self, event, skb, info)
+ *
+ * Trying to connect
+ *
+ */
+static int ircomm_tty_state_setup(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s: state=%s, event=%s\n", __FUNCTION__ ,
+ ircomm_tty_state[self->state], ircomm_tty_event[event]);
+
+ switch (event) {
+ case IRCOMM_TTY_CONNECT_CONFIRM:
+ del_timer(&self->watchdog_timer);
+ ircomm_tty_ias_unregister(self);
+
+ /*
+ * Send initial parameters. This will also send out queued
+ * parameters waiting for the connection to come up
+ */
+ ircomm_tty_send_initial_parameters(self);
+ ircomm_tty_link_established(self);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_CONNECT_INDICATION:
+ del_timer(&self->watchdog_timer);
+ ircomm_tty_ias_unregister(self);
+
+ /* Accept connection */
+ ircomm_connect_response(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_READY);
+ break;
+ case IRCOMM_TTY_WD_TIMER_EXPIRED:
+ /* Go back to search mode */
+ ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ /* ircomm_disconnect_request(self->ircomm, NULL); */
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
+/*
+ * Function ircomm_tty_state_ready (self, event, skb, info)
+ *
+ * IrCOMM is now connected
+ *
+ */
+static int ircomm_tty_state_ready(struct ircomm_tty_cb *self,
+ IRCOMM_TTY_EVENT event,
+ struct sk_buff *skb,
+ struct ircomm_tty_info *info)
+{
+ int ret = 0;
+
+ switch (event) {
+ case IRCOMM_TTY_DATA_REQUEST:
+ ret = ircomm_data_request(self->ircomm, skb);
+ break;
+ case IRCOMM_TTY_DETACH_CABLE:
+ ircomm_disconnect_request(self->ircomm, NULL);
+ ircomm_tty_next_state(self, IRCOMM_TTY_IDLE);
+ break;
+ case IRCOMM_TTY_DISCONNECT_INDICATION:
+ ircomm_tty_ias_register(self);
+ ircomm_tty_next_state(self, IRCOMM_TTY_SEARCH);
+ ircomm_tty_start_watchdog_timer(self, 3*HZ);
+
+ if (self->flags & ASYNC_CHECK_CD) {
+ /* Drop carrier */
+ self->settings.dce = IRCOMM_DELTA_CD;
+ ircomm_tty_check_modem_status(self);
+ } else {
+ IRDA_DEBUG(0, "%s(), hanging up!\n", __FUNCTION__ );
+ if (self->tty)
+ tty_hangup(self->tty);
+ }
+ break;
+ default:
+ IRDA_DEBUG(2, "%s(), unknown event: %s\n", __FUNCTION__ ,
+ ircomm_tty_event[event]);
+ ret = -EINVAL;
+ }
+ return ret;
+}
+
diff --git a/net/irda/ircomm/ircomm_tty_ioctl.c b/net/irda/ircomm/ircomm_tty_ioctl.c
new file mode 100644
index 0000000..197e3e7
--- /dev/null
+++ b/net/irda/ircomm/ircomm_tty_ioctl.c
@@ -0,0 +1,428 @@
+/*********************************************************************
+ *
+ * Filename: ircomm_tty_ioctl.c
+ * Version:
+ * Description:
+ * Status: Experimental.
+ * Author: Dag Brattli <dagb@cs.uit.no>
+ * Created at: Thu Jun 10 14:39:09 1999
+ * Modified at: Wed Jan 5 14:45:43 2000
+ * Modified by: Dag Brattli <dagb@cs.uit.no>
+ *
+ * Copyright (c) 1999-2000 Dag Brattli, All Rights Reserved.
+ *
+ * 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/init.h>
+#include <linux/fs.h>
+#include <linux/sched.h>
+#include <linux/termios.h>
+#include <linux/tty.h>
+#include <linux/serial.h>
+
+#include <asm/uaccess.h>
+
+#include <net/irda/irda.h>
+#include <net/irda/irmod.h>
+
+#include <net/irda/ircomm_core.h>
+#include <net/irda/ircomm_param.h>
+#include <net/irda/ircomm_tty_attach.h>
+#include <net/irda/ircomm_tty.h>
+
+#define RELEVANT_IFLAG(iflag) (iflag & (IGNBRK|BRKINT|IGNPAR|PARMRK|INPCK))
+
+/*
+ * Function ircomm_tty_change_speed (driver)
+ *
+ * Change speed of the driver. If the remote device is a DCE, then this
+ * should make it change the speed of its serial port
+ */
+static void ircomm_tty_change_speed(struct ircomm_tty_cb *self)
+{
+ unsigned cflag, cval;
+ int baud;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if (!self->tty || !self->tty->termios || !self->ircomm)
+ return;
+
+ cflag = self->tty->termios->c_cflag;
+
+ /* byte size and parity */
+ switch (cflag & CSIZE) {
+ case CS5: cval = IRCOMM_WSIZE_5; break;
+ case CS6: cval = IRCOMM_WSIZE_6; break;
+ case CS7: cval = IRCOMM_WSIZE_7; break;
+ case CS8: cval = IRCOMM_WSIZE_8; break;
+ default: cval = IRCOMM_WSIZE_5; break;
+ }
+ if (cflag & CSTOPB)
+ cval |= IRCOMM_2_STOP_BIT;
+
+ if (cflag & PARENB)
+ cval |= IRCOMM_PARITY_ENABLE;
+ if (!(cflag & PARODD))
+ cval |= IRCOMM_PARITY_EVEN;
+
+ /* Determine divisor based on baud rate */
+ baud = tty_get_baud_rate(self->tty);
+ if (!baud)
+ baud = 9600; /* B0 transition handled in rs_set_termios */
+
+ self->settings.data_rate = baud;
+ ircomm_param_request(self, IRCOMM_DATA_RATE, FALSE);
+
+ /* CTS flow control flag and modem status interrupts */
+ if (cflag & CRTSCTS) {
+ self->flags |= ASYNC_CTS_FLOW;
+ self->settings.flow_control |= IRCOMM_RTS_CTS_IN;
+ /* This got me. Bummer. Jean II */
+ if (self->service_type == IRCOMM_3_WIRE_RAW)
+ IRDA_WARNING("%s(), enabling RTS/CTS on link that doesn't support it (3-wire-raw)\n", __FUNCTION__);
+ } else {
+ self->flags &= ~ASYNC_CTS_FLOW;
+ self->settings.flow_control &= ~IRCOMM_RTS_CTS_IN;
+ }
+ if (cflag & CLOCAL)
+ self->flags &= ~ASYNC_CHECK_CD;
+ else
+ self->flags |= ASYNC_CHECK_CD;
+#if 0
+ /*
+ * Set up parity check flag
+ */
+
+ if (I_INPCK(self->tty))
+ driver->read_status_mask |= LSR_FE | LSR_PE;
+ if (I_BRKINT(driver->tty) || I_PARMRK(driver->tty))
+ driver->read_status_mask |= LSR_BI;
+
+ /*
+ * Characters to ignore
+ */
+ driver->ignore_status_mask = 0;
+ if (I_IGNPAR(driver->tty))
+ driver->ignore_status_mask |= LSR_PE | LSR_FE;
+
+ if (I_IGNBRK(self->tty)) {
+ self->ignore_status_mask |= LSR_BI;
+ /*
+ * If we're ignore parity and break indicators, ignore
+ * overruns too. (For real raw support).
+ */
+ if (I_IGNPAR(self->tty))
+ self->ignore_status_mask |= LSR_OE;
+ }
+#endif
+ self->settings.data_format = cval;
+
+ ircomm_param_request(self, IRCOMM_DATA_FORMAT, FALSE);
+ ircomm_param_request(self, IRCOMM_FLOW_CONTROL, TRUE);
+}
+
+/*
+ * Function ircomm_tty_set_termios (tty, old_termios)
+ *
+ * This routine allows the tty driver to be notified when device's
+ * termios settings have changed. Note that a well-designed tty driver
+ * should be prepared to accept the case where old == NULL, and try to
+ * do something rational.
+ */
+void ircomm_tty_set_termios(struct tty_struct *tty,
+ struct termios *old_termios)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned int cflag = tty->termios->c_cflag;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if ((cflag == old_termios->c_cflag) &&
+ (RELEVANT_IFLAG(tty->termios->c_iflag) ==
+ RELEVANT_IFLAG(old_termios->c_iflag)))
+ {
+ return;
+ }
+
+ ircomm_tty_change_speed(self);
+
+ /* Handle transition to B0 status */
+ if ((old_termios->c_cflag & CBAUD) &&
+ !(cflag & CBAUD)) {
+ self->settings.dte &= ~(IRCOMM_DTR|IRCOMM_RTS);
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ }
+
+ /* Handle transition away from B0 status */
+ if (!(old_termios->c_cflag & CBAUD) &&
+ (cflag & CBAUD)) {
+ self->settings.dte |= IRCOMM_DTR;
+ if (!(tty->termios->c_cflag & CRTSCTS) ||
+ !test_bit(TTY_THROTTLED, &tty->flags)) {
+ self->settings.dte |= IRCOMM_RTS;
+ }
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+ }
+
+ /* Handle turning off CRTSCTS */
+ if ((old_termios->c_cflag & CRTSCTS) &&
+ !(tty->termios->c_cflag & CRTSCTS))
+ {
+ tty->hw_stopped = 0;
+ ircomm_tty_start(tty);
+ }
+}
+
+/*
+ * Function ircomm_tty_tiocmget (tty, file)
+ *
+ *
+ *
+ */
+int ircomm_tty_tiocmget(struct tty_struct *tty, struct file *file)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ unsigned int result;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if (tty->flags & (1 << TTY_IO_ERROR))
+ return -EIO;
+
+ result = ((self->settings.dte & IRCOMM_RTS) ? TIOCM_RTS : 0)
+ | ((self->settings.dte & IRCOMM_DTR) ? TIOCM_DTR : 0)
+ | ((self->settings.dce & IRCOMM_CD) ? TIOCM_CAR : 0)
+ | ((self->settings.dce & IRCOMM_RI) ? TIOCM_RNG : 0)
+ | ((self->settings.dce & IRCOMM_DSR) ? TIOCM_DSR : 0)
+ | ((self->settings.dce & IRCOMM_CTS) ? TIOCM_CTS : 0);
+ return result;
+}
+
+/*
+ * Function ircomm_tty_tiocmset (tty, file, set, clear)
+ *
+ *
+ *
+ */
+int ircomm_tty_tiocmset(struct tty_struct *tty, struct file *file,
+ unsigned int set, unsigned int clear)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if (tty->flags & (1 << TTY_IO_ERROR))
+ return -EIO;
+
+ IRDA_ASSERT(self != NULL, return -1;);
+ IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return -1;);
+
+ if (set & TIOCM_RTS)
+ self->settings.dte |= IRCOMM_RTS;
+ if (set & TIOCM_DTR)
+ self->settings.dte |= IRCOMM_DTR;
+
+ if (clear & TIOCM_RTS)
+ self->settings.dte &= ~IRCOMM_RTS;
+ if (clear & TIOCM_DTR)
+ self->settings.dte &= ~IRCOMM_DTR;
+
+ if ((set|clear) & TIOCM_RTS)
+ self->settings.dte |= IRCOMM_DELTA_RTS;
+ if ((set|clear) & TIOCM_DTR)
+ self->settings.dte |= IRCOMM_DELTA_DTR;
+
+ ircomm_param_request(self, IRCOMM_DTE, TRUE);
+
+ return 0;
+}
+
+/*
+ * Function get_serial_info (driver, retinfo)
+ *
+ *
+ *
+ */
+static int ircomm_tty_get_serial_info(struct ircomm_tty_cb *self,
+ struct serial_struct __user *retinfo)
+{
+ struct serial_struct info;
+
+ if (!retinfo)
+ return -EFAULT;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ memset(&info, 0, sizeof(info));
+ info.line = self->line;
+ info.flags = self->flags;
+ info.baud_base = self->settings.data_rate;
+ info.close_delay = self->close_delay;
+ info.closing_wait = self->closing_wait;
+
+ /* For compatibility */
+ info.type = PORT_16550A;
+ info.port = 0;
+ info.irq = 0;
+ info.xmit_fifo_size = 0;
+ info.hub6 = 0;
+ info.custom_divisor = 0;
+
+ if (copy_to_user(retinfo, &info, sizeof(*retinfo)))
+ return -EFAULT;
+
+ return 0;
+}
+
+/*
+ * Function set_serial_info (driver, new_info)
+ *
+ *
+ *
+ */
+static int ircomm_tty_set_serial_info(struct ircomm_tty_cb *self,
+ struct serial_struct __user *new_info)
+{
+#if 0
+ struct serial_struct new_serial;
+ struct ircomm_tty_cb old_state, *state;
+
+ IRDA_DEBUG(0, "%s()\n", __FUNCTION__ );
+
+ if (copy_from_user(&new_serial,new_info,sizeof(new_serial)))
+ return -EFAULT;
+
+
+ state = self
+ old_state = *self;
+
+ if (!capable(CAP_SYS_ADMIN)) {
+ if ((new_serial.baud_base != state->settings.data_rate) ||
+ (new_serial.close_delay != state->close_delay) ||
+ ((new_serial.flags & ~ASYNC_USR_MASK) !=
+ (self->flags & ~ASYNC_USR_MASK)))
+ return -EPERM;
+ state->flags = ((state->flags & ~ASYNC_USR_MASK) |
+ (new_serial.flags & ASYNC_USR_MASK));
+ self->flags = ((self->flags & ~ASYNC_USR_MASK) |
+ (new_serial.flags & ASYNC_USR_MASK));
+ /* self->custom_divisor = new_serial.custom_divisor; */
+ goto check_and_exit;
+ }
+
+ /*
+ * OK, past this point, all the error checking has been done.
+ * At this point, we start making changes.....
+ */
+
+ if (self->settings.data_rate != new_serial.baud_base) {
+ self->settings.data_rate = new_serial.baud_base;
+ ircomm_param_request(self, IRCOMM_DATA_RATE, TRUE);
+ }
+
+ self->close_delay = new_serial.close_delay * HZ/100;
+ self->closing_wait = new_serial.closing_wait * HZ/100;
+ /* self->custom_divisor = new_serial.custom_divisor; */
+
+ self->flags = ((self->flags & ~ASYNC_FLAGS) |
+ (new_serial.flags & ASYNC_FLAGS));
+ self->tty->low_latency = (self->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+
+ check_and_exit:
+
+ if (self->flags & ASYNC_INITIALIZED) {
+ if (((old_state.flags & ASYNC_SPD_MASK) !=
+ (self->flags & ASYNC_SPD_MASK)) ||
+ (old_driver.custom_divisor != driver->custom_divisor)) {
+ if ((driver->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+ driver->tty->alt_speed = 57600;
+ if ((driver->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+ driver->tty->alt_speed = 115200;
+ if ((driver->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+ driver->tty->alt_speed = 230400;
+ if ((driver->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+ driver->tty->alt_speed = 460800;
+ ircomm_tty_change_speed(driver);
+ }
+ }
+#endif
+ return 0;
+}
+
+/*
+ * Function ircomm_tty_ioctl (tty, file, cmd, arg)
+ *
+ *
+ *
+ */
+int ircomm_tty_ioctl(struct tty_struct *tty, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) tty->driver_data;
+ int ret = 0;
+
+ IRDA_DEBUG(2, "%s()\n", __FUNCTION__ );
+
+ if ((cmd != TIOCGSERIAL) && (cmd != TIOCSSERIAL) &&
+ (cmd != TIOCSERCONFIG) && (cmd != TIOCSERGSTRUCT) &&
+ (cmd != TIOCMIWAIT) && (cmd != TIOCGICOUNT)) {
+ if (tty->flags & (1 << TTY_IO_ERROR))
+ return -EIO;
+ }
+
+ switch (cmd) {
+ case TIOCGSERIAL:
+ ret = ircomm_tty_get_serial_info(self, (struct serial_struct __user *) arg);
+ break;
+ case TIOCSSERIAL:
+ ret = ircomm_tty_set_serial_info(self, (struct serial_struct __user *) arg);
+ break;
+ case TIOCMIWAIT:
+ IRDA_DEBUG(0, "(), TIOCMIWAIT, not impl!\n");
+ break;
+
+ case TIOCGICOUNT:
+ IRDA_DEBUG(0, "%s(), TIOCGICOUNT not impl!\n", __FUNCTION__ );
+#if 0
+ save_flags(flags); cli();
+ cnow = driver->icount;
+ restore_flags(flags);
+ p_cuser = (struct serial_icounter_struct __user *) arg;
+ if (put_user(cnow.cts, &p_cuser->cts) ||
+ put_user(cnow.dsr, &p_cuser->dsr) ||
+ put_user(cnow.rng, &p_cuser->rng) ||
+ put_user(cnow.dcd, &p_cuser->dcd) ||
+ put_user(cnow.rx, &p_cuser->rx) ||
+ put_user(cnow.tx, &p_cuser->tx) ||
+ put_user(cnow.frame, &p_cuser->frame) ||
+ put_user(cnow.overrun, &p_cuser->overrun) ||
+ put_user(cnow.parity, &p_cuser->parity) ||
+ put_user(cnow.brk, &p_cuser->brk) ||
+ put_user(cnow.buf_overrun, &p_cuser->buf_overrun))
+ return -EFAULT;
+#endif
+ return 0;
+ default:
+ ret = -ENOIOCTLCMD; /* ioctls which we must ignore */
+ }
+ return ret;
+}
+
+
+