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qcdm: add serial port subclass skeleton

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This commit is contained in:
Dan Williams
2010-02-23 11:41:40 -08:00
parent bc3ac7bae5
commit 7a0373afee
3 changed files with 246 additions and 0 deletions
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4
src/Makefile.am
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@@ -16,6 +16,7 @@ sbin_PROGRAMS = modem-manager
modem_manager_CPPFLAGS = \
$(MM_CFLAGS) \
$(GUDEV_CFLAGS) \
$(top_srcdir) \
-I${top_builddir}/marshallers \
-DPLUGINDIR=\"$(pkglibdir)\"
@@ -23,6 +24,7 @@ modem_manager_LDADD = \
$(MM_LIBS) \
$(GUDEV_LIBS) \
$(top_builddir)/marshallers/libmarshallers.la \
$(top_builddir)/libqcdm/src/libqcdm.la \
$(builddir)/libmodem-helpers.la
modem_manager_SOURCES = \
@@ -39,6 +41,8 @@ modem_manager_SOURCES = \
mm-serial-port.h \
mm-at-serial-port.c \
mm-at-serial-port.h \
mm-qcdm-serial-port.c \
mm-qcdm-serial-port.h \
mm-serial-parsers.c \
mm-serial-parsers.h \
mm-modem-base.c \

176
src/mm-qcdm-serial-port.c Normal file
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@@ -0,0 +1,176 @@
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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:
*
* Copyright (C) 2008 - 2009 Novell, Inc.
* Copyright (C) 2009 - 2010 Red Hat, Inc.
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "mm-qcdm-serial-port.h"
#include "mm-errors.h"
#include "mm-options.h"
#include "libqcdm/src/com.h"
#include "libqcdm/src/utils.h"
G_DEFINE_TYPE (MMQcdmSerialPort, mm_qcdm_serial_port, MM_TYPE_SERIAL_PORT)
#define MM_QCDM_SERIAL_PORT_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_QCDM_SERIAL_PORT, MMQcdmSerialPortPrivate))
typedef struct {
gboolean foo;
} MMQcdmSerialPortPrivate;
/*****************************************************************************/
static gboolean
parse_response (MMSerialPort *port, GByteArray *response, GError **error)
{
int i;
/* Look for the QCDM packet termination character; if we found it, treat
* the buffer as a qcdm command.
*/
for (i = 0; i < response->len; i++) {
if (response->data[i] == 0x7E)
return TRUE;
}
/* Otherwise, need more data from the device */
return FALSE;
}
static void
handle_response (MMSerialPort *port,
GByteArray *response,
GError *error,
GCallback callback,
gpointer callback_data)
{
MMQcdmSerialResponseFn response_callback = (MMQcdmSerialResponseFn) callback;
GByteArray *unescaped = NULL;
gboolean escaping = FALSE;
GError *dm_error = NULL;
if (!error) {
unescaped = g_byte_array_sized_new (response->len);
unescaped->len = dm_unescape ((const char *) response->data, response->len,
(char *) unescaped->data, unescaped->len,
&escaping);
if (unescaped->len == 0) {
g_set_error_literal (&dm_error, 0, 0, "Failed to unescape QCDM packet.");
g_byte_array_free (unescaped, TRUE);
unescaped = NULL;
}
}
response_callback (MM_QCDM_SERIAL_PORT (port),
unescaped,
dm_error ? dm_error : error,
callback_data);
if (unescaped)
g_byte_array_free (unescaped, TRUE);
}
/*****************************************************************************/
void
mm_qcdm_serial_port_queue_command (MMQcdmSerialPort *self,
GByteArray *command,
guint32 timeout_seconds,
MMQcdmSerialResponseFn callback,
gpointer user_data)
{
g_return_if_fail (self != NULL);
g_return_if_fail (MM_IS_QCDM_SERIAL_PORT (self));
g_return_if_fail (command != NULL);
/* 'command' is expected to be already CRC-ed and escaped */
mm_serial_port_queue_command (MM_SERIAL_PORT (self),
command,
TRUE,
timeout_seconds,
G_CALLBACK (callback),
user_data);
}
void
mm_qcdm_serial_port_queue_command_cached (MMQcdmSerialPort *self,
GByteArray *command,
guint32 timeout_seconds,
MMQcdmSerialResponseFn callback,
gpointer user_data)
{
g_return_if_fail (self != NULL);
g_return_if_fail (MM_IS_QCDM_SERIAL_PORT (self));
g_return_if_fail (command != NULL);
/* 'command' is expected to be already CRC-ed and escaped */
mm_serial_port_queue_command_cached (MM_SERIAL_PORT (self),
command,
TRUE,
timeout_seconds,
G_CALLBACK (callback),
user_data);
}
/*****************************************************************************/
static gboolean
config_fd (MMSerialPort *port, int fd, GError **error)
{
return qcdm_port_setup (fd, error);
}
/*****************************************************************************/
MMQcdmSerialPort *
mm_qcdm_serial_port_new (const char *name, MMPortType ptype)
{
return MM_QCDM_SERIAL_PORT (g_object_new (MM_TYPE_QCDM_SERIAL_PORT,
MM_PORT_DEVICE, name,
MM_PORT_SUBSYS, MM_PORT_SUBSYS_TTY,
MM_PORT_TYPE, ptype,
NULL));
}
static void
mm_qcdm_serial_port_init (MMQcdmSerialPort *self)
{
}
static void
finalize (GObject *object)
{
G_OBJECT_CLASS (mm_qcdm_serial_port_parent_class)->finalize (object);
}
static void
mm_qcdm_serial_port_class_init (MMQcdmSerialPortClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MMSerialPortClass *port_class = MM_SERIAL_PORT_CLASS (klass);
g_type_class_add_private (object_class, sizeof (MMQcdmSerialPortPrivate));
/* Virtual methods */
object_class->finalize = finalize;
port_class->parse_response = parse_response;
port_class->handle_response = handle_response;
port_class->config_fd = config_fd;
}

66
src/mm-qcdm-serial-port.h Normal file
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@@ -0,0 +1,66 @@
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* 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:
*
* Copyright (C) 2008 - 2009 Novell, Inc.
* Copyright (C) 2009 - 2010 Red Hat, Inc.
*/
#ifndef MM_QCDM_SERIAL_PORT_H
#define MM_QCDM_SERIAL_PORT_H
#include <glib.h>
#include <glib/gtypes.h>
#include <glib-object.h>
#include "mm-serial-port.h"
#define MM_TYPE_QCDM_SERIAL_PORT (mm_qcdm_serial_port_get_type ())
#define MM_QCDM_SERIAL_PORT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), MM_TYPE_QCDM_SERIAL_PORT, MMQcdmSerialPort))
#define MM_QCDM_SERIAL_PORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), MM_TYPE_QCDM_SERIAL_PORT, MMQcdmSerialPortClass))
#define MM_IS_QCDM_SERIAL_PORT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MM_TYPE_QCDM_SERIAL_PORT))
#define MM_IS_QCDM_SERIAL_PORT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MM_TYPE_QCDM_SERIAL_PORT))
#define MM_QCDM_SERIAL_PORT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), MM_TYPE_QCDM_SERIAL_PORT, MMQcdmSerialPortClass))
typedef struct _MMQcdmSerialPort MMQcdmSerialPort;
typedef struct _MMQcdmSerialPortClass MMQcdmSerialPortClass;
typedef void (*MMQcdmSerialResponseFn) (MMQcdmSerialPort *port,
GByteArray *response,
GError *error,
gpointer user_data);
struct _MMQcdmSerialPort {
MMSerialPort parent;
};
struct _MMQcdmSerialPortClass {
MMSerialPortClass parent;
};
GType mm_qcdm_serial_port_get_type (void);
MMQcdmSerialPort *mm_qcdm_serial_port_new (const char *name, MMPortType ptype);
void mm_qcdm_serial_port_queue_command (MMQcdmSerialPort *self,
GByteArray *command,
guint32 timeout_seconds,
MMQcdmSerialResponseFn callback,
gpointer user_data);
void mm_qcdm_serial_port_queue_command_cached (MMQcdmSerialPort *self,
GByteArray *command,
guint32 timeout_seconds,
MMQcdmSerialResponseFn callback,
gpointer user_data);
#endif /* MM_QCDM_SERIAL_PORT_H */