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6ad17fb22e2dcbb2425ffb872da2fc92d4802bbf
ModemManager/plugins/x22x/mm-broadband-modem-x22x.c
T
Aleksander Morgado 5d176a1e61 base-modem: explicitly say if NET or TTY data ports are supported 
A modem that creates exclusively bearer objects that work with NET
ports (e.g. all QMI or MBIM modems) must not add any TTY port in the
list of data ports.

A modem that creates exclusively bearer objects that work with TTY
ports (e.g. the generic modem) must not add any NET port in the
list of data ports.

A modem that may use both TTY and NET ports should add all in the list
of data ports.

Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/324
Fixes https://gitlab.freedesktop.org/mobile-broadband/ModemManager/-/issues/329
2021-03-04 18:03:28 +01:00

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/* -*- 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 - 2012 Red Hat, Inc.
* Copyright (C) 2012 Aleksander Morgado <aleksander@gnu.org>
*/
#include <config.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <ctype.h>
#include "ModemManager.h"
#include "mm-log.h"
#include "mm-errors-types.h"
#include "mm-modem-helpers.h"
#include "mm-base-modem-at.h"
#include "mm-iface-modem.h"
#include "mm-broadband-modem-x22x.h"
static void iface_modem_init (MMIfaceModem *iface);
static MMIfaceModem *iface_modem_parent;
G_DEFINE_TYPE_EXTENDED (MMBroadbandModemX22x, mm_broadband_modem_x22x, MM_TYPE_BROADBAND_MODEM, 0,
G_IMPLEMENT_INTERFACE (MM_TYPE_IFACE_MODEM, iface_modem_init))
struct _MMBroadbandModemX22xPrivate {
GRegex *mode_regex;
GRegex *sysinfo_regex;
GRegex *specc_regex;
GRegex *sperror_regex;
};
/*****************************************************************************/
/* Load supported modes (Modem interface) */
static GArray *
load_supported_modes_finish (MMIfaceModem *self,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_pointer (G_TASK (res), error);
}
static void
parent_load_supported_modes_ready (MMIfaceModem *self,
GAsyncResult *res,
GTask *task)
{
GError *error = NULL;
GArray *all;
GArray *combinations;
GArray *filtered;
MMModemModeCombination mode;
all = iface_modem_parent->load_supported_modes_finish (self, res, &error);
if (!all) {
g_task_return_error (task, error);
g_object_unref (task);
return;
}
/* Build list of combinations for 3GPP devices */
combinations = g_array_sized_new (FALSE, FALSE, sizeof (MMModemModeCombination), 3);
/* 2G only */
mode.allowed = MM_MODEM_MODE_2G;
mode.preferred = MM_MODEM_MODE_NONE;
g_array_append_val (combinations, mode);
/* 3G only */
mode.allowed = MM_MODEM_MODE_3G;
mode.preferred = MM_MODEM_MODE_NONE;
g_array_append_val (combinations, mode);
/* 2G and 3G */
mode.allowed = (MM_MODEM_MODE_2G | MM_MODEM_MODE_3G);
mode.preferred = MM_MODEM_MODE_NONE;
g_array_append_val (combinations, mode);
/* Filter out those unsupported modes */
filtered = mm_filter_supported_modes (all, combinations, self);
g_array_unref (all);
g_array_unref (combinations);
g_task_return_pointer (task, filtered, (GDestroyNotify) g_array_unref);
g_object_unref (task);
}
static void
load_supported_modes (MMIfaceModem *self,
GAsyncReadyCallback callback,
gpointer user_data)
{
/* Run parent's loading */
iface_modem_parent->load_supported_modes (
MM_IFACE_MODEM (self),
(GAsyncReadyCallback)parent_load_supported_modes_ready,
g_task_new (self, NULL, callback, user_data));
}
/*****************************************************************************/
/* Load initial allowed/preferred modes (Modem interface) */
static gboolean
load_current_modes_finish (MMIfaceModem *self,
GAsyncResult *res,
MMModemMode *allowed,
MMModemMode *preferred,
GError **error)
{
GRegex *r;
GMatchInfo *match_info;
const gchar *response;
gchar *str;
gint mode = -1;
GError *match_error = NULL;
response = mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, error);
if (!response)
return FALSE;
r = g_regex_new ("\\+SYSSEL:\\s*(\\d+),(\\d+),(\\d+),(\\d+)", G_REGEX_UNGREEDY, 0, NULL);
g_assert (r != NULL);
if (!g_regex_match_full (r, response, strlen (response), 0, 0, &match_info, &match_error)) {
if (match_error) {
g_propagate_error (error, match_error);
} else {
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't match +SYSSEL reply: %s", response);
}
g_match_info_free (match_info);
g_regex_unref (r);
return FALSE;
}
str = g_match_info_fetch (match_info, 3);
mode = atoi (str);
g_free (str);
g_match_info_free (match_info);
g_regex_unref (r);
switch (mode) {
case 0:
*allowed = MM_MODEM_MODE_ANY;
*preferred = MM_MODEM_MODE_NONE;
return TRUE;
case 1:
*allowed = MM_MODEM_MODE_2G;
*preferred = MM_MODEM_MODE_NONE;
return TRUE;
case 2:
*allowed = MM_MODEM_MODE_3G;
*preferred = MM_MODEM_MODE_NONE;
return TRUE;
default:
break;
}
g_set_error (error,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Failed to parse mode/tech response: Unexpected mode '%d'", mode);
return FALSE;
}
static void
load_current_modes (MMIfaceModem *self,
GAsyncReadyCallback callback,
gpointer user_data)
{
mm_base_modem_at_command (MM_BASE_MODEM (self),
"+SYSSEL?",
3,
FALSE,
callback,
user_data);
}
/*****************************************************************************/
/* Set allowed modes (Modem interface) */
static gboolean
set_current_modes_finish (MMIfaceModem *self,
GAsyncResult *res,
GError **error)
{
return g_task_propagate_boolean (G_TASK (res), error);
}
static void
allowed_mode_update_ready (MMBroadbandModemX22x *self,
GAsyncResult *res,
GTask *task)
{
GError *error = NULL;
mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, &error);
if (error)
/* Let the error be critical. */
g_task_return_error (task, error);
else
g_task_return_boolean (task, TRUE);
g_object_unref (task);
}
static void
set_current_modes (MMIfaceModem *self,
MMModemMode allowed,
MMModemMode preferred,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
gchar *command;
gint syssel = -1;
task = g_task_new (self, NULL, callback, user_data);
if (allowed == MM_MODEM_MODE_2G)
syssel = 1;
else if (allowed == MM_MODEM_MODE_3G)
syssel = 2;
else if (allowed == MM_MODEM_MODE_ANY &&
preferred == MM_MODEM_MODE_NONE)
syssel = 0;
else if (allowed == (MM_MODEM_MODE_2G | MM_MODEM_MODE_3G) &&
preferred == MM_MODEM_MODE_NONE)
syssel = 0;
else {
gchar *allowed_str;
gchar *preferred_str;
allowed_str = mm_modem_mode_build_string_from_mask (allowed);
preferred_str = mm_modem_mode_build_string_from_mask (preferred);
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Requested mode (allowed: '%s', preferred: '%s') not "
"supported by the modem.",
allowed_str,
preferred_str);
g_object_unref (task);
g_free (allowed_str);
g_free (preferred_str);
return;
}
command = g_strdup_printf ("+SYSSEL=,%d,0", syssel);
mm_base_modem_at_command (
MM_BASE_MODEM (self),
command,
3,
FALSE,
(GAsyncReadyCallback)allowed_mode_update_ready,
task);
g_free (command);
}
/*****************************************************************************/
/* Load access technologies (Modem interface) */
static gboolean
load_access_technologies_finish (MMIfaceModem *self,
GAsyncResult *res,
MMModemAccessTechnology *access_technologies,
guint *mask,
GError **error)
{
const gchar *result;
result = mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, error);
if (!result)
return FALSE;
result = mm_strip_tag (result, "+SSND:");
*access_technologies = mm_string_to_access_tech (result);
*mask = MM_MODEM_ACCESS_TECHNOLOGY_ANY;
return TRUE;
}
static void
load_access_technologies (MMIfaceModem *self,
GAsyncReadyCallback callback,
gpointer user_data)
{
mm_base_modem_at_command (MM_BASE_MODEM (self),
"+SSND?",
3,
FALSE,
callback,
user_data);
}
/*****************************************************************************/
/* Setup ports (Broadband modem class) */
static void
set_ignored_unsolicited_events_handlers (MMBroadbandModemX22x *self)
{
MMPortSerialAt *ports[2];
guint i;
ports[0] = mm_base_modem_peek_port_primary (MM_BASE_MODEM (self));
ports[1] = mm_base_modem_peek_port_secondary (MM_BASE_MODEM (self));
/* Enable/disable unsolicited events in given port */
for (i = 0; i < G_N_ELEMENTS (ports); i++) {
if (!ports[i])
continue;
mm_port_serial_at_add_unsolicited_msg_handler (
ports[i],
self->priv->mode_regex,
NULL, NULL, NULL);
mm_port_serial_at_add_unsolicited_msg_handler (
ports[i],
self->priv->sysinfo_regex,
NULL, NULL, NULL);
mm_port_serial_at_add_unsolicited_msg_handler (
ports[i],
self->priv->specc_regex,
NULL, NULL, NULL);
mm_port_serial_at_add_unsolicited_msg_handler (
ports[i],
self->priv->sperror_regex,
NULL, NULL, NULL);
}
}
static void
setup_ports (MMBroadbandModem *self)
{
/* Call parent's setup ports first always */
MM_BROADBAND_MODEM_CLASS (mm_broadband_modem_x22x_parent_class)->setup_ports (self);
/* Unsolicited messages to always ignore */
set_ignored_unsolicited_events_handlers (MM_BROADBAND_MODEM_X22X (self));
}
/*****************************************************************************/
MMBroadbandModemX22x *
mm_broadband_modem_x22x_new (const gchar *device,
const gchar **drivers,
const gchar *plugin,
guint16 vendor_id,
guint16 product_id)
{
return g_object_new (MM_TYPE_BROADBAND_MODEM_X22X,
MM_BASE_MODEM_DEVICE, device,
MM_BASE_MODEM_DRIVERS, drivers,
MM_BASE_MODEM_PLUGIN, plugin,
MM_BASE_MODEM_VENDOR_ID, vendor_id,
MM_BASE_MODEM_PRODUCT_ID, product_id,
/* Generic bearer supports TTY only */
MM_BASE_MODEM_DATA_NET_SUPPORTED, FALSE,
MM_BASE_MODEM_DATA_TTY_SUPPORTED, TRUE,
NULL);
}
static void
mm_broadband_modem_x22x_init (MMBroadbandModemX22x *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
MM_TYPE_BROADBAND_MODEM_X22X,
MMBroadbandModemX22xPrivate);
self->priv->mode_regex = g_regex_new ("\\r\\n\\^MODE:.+\\r\\n",
G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
self->priv->sysinfo_regex = g_regex_new ("\\r\\n\\^SYSINFO:.+\\r\\n",
G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
self->priv->specc_regex = g_regex_new ("\\r\\n\\+SPECC\\r\\n",
G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
self->priv->sperror_regex = g_regex_new ("\\r\\n\\+SPERROR:.+\\r\\n",
G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
}
static void
finalize (GObject *object)
{
MMBroadbandModemX22x *self = MM_BROADBAND_MODEM_X22X (object);
g_regex_unref (self->priv->mode_regex);
g_regex_unref (self->priv->sysinfo_regex);
g_regex_unref (self->priv->specc_regex);
g_regex_unref (self->priv->sperror_regex);
G_OBJECT_CLASS (mm_broadband_modem_x22x_parent_class)->finalize (object);
}
static void
iface_modem_init (MMIfaceModem *iface)
{
iface_modem_parent = g_type_interface_peek_parent (iface);
iface->load_access_technologies = load_access_technologies;
iface->load_access_technologies_finish = load_access_technologies_finish;
iface->load_supported_modes = load_supported_modes;
iface->load_supported_modes_finish = load_supported_modes_finish;
iface->load_current_modes = load_current_modes;
iface->load_current_modes_finish = load_current_modes_finish;
iface->set_current_modes = set_current_modes;
iface->set_current_modes_finish = set_current_modes_finish;
}
static void
mm_broadband_modem_x22x_class_init (MMBroadbandModemX22xClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
MMBroadbandModemClass *broadband_modem_class = MM_BROADBAND_MODEM_CLASS (klass);
g_type_class_add_private (object_class, sizeof (MMBroadbandModemX22xPrivate));
object_class->finalize = finalize;
broadband_modem_class->setup_ports = setup_ports;
}
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