Files
ModemManager/plugins/mm-plugin-huawei.c
Aleksander Morgado f9f6d1dfdb plugins: propagate cached probing result to supports task
We need to ensure that the supports task always has the results of the probing,
no matter if the probing was just launched by the plugin grabbing the port, or
by a previous plugin. We do this during supports_port(), by propagating to the
supports task any possible previously cached probing results.
2011-06-06 17:21:47 +02:00

305 lines
10 KiB
C

/* -*- 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 Red Hat, Inc.
*/
#include <string.h>
#include <stdlib.h>
#include <gmodule.h>
#define G_UDEV_API_IS_SUBJECT_TO_CHANGE
#include <gudev/gudev.h>
#include "mm-plugin-huawei.h"
#include "mm-generic-gsm.h"
#include "mm-generic-cdma.h"
#include "mm-modem-huawei-gsm.h"
#include "mm-modem-huawei-cdma.h"
#include "mm-serial-parsers.h"
#include "mm-at-serial-port.h"
#include "mm-log.h"
#include "mm-errors.h"
G_DEFINE_TYPE (MMPluginHuawei, mm_plugin_huawei, MM_TYPE_PLUGIN_BASE)
int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION;
int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;
G_MODULE_EXPORT MMPlugin *
mm_plugin_create (void)
{
return MM_PLUGIN (g_object_new (MM_TYPE_PLUGIN_HUAWEI,
MM_PLUGIN_BASE_NAME, "Huawei",
NULL));
}
/*****************************************************************************/
#define TAG_HUAWEI_PCUI_PORT "huawei-pcui-port"
#define CAP_CDMA (MM_PLUGIN_BASE_PORT_CAP_IS707_A | \
MM_PLUGIN_BASE_PORT_CAP_IS707_P | \
MM_PLUGIN_BASE_PORT_CAP_IS856 | \
MM_PLUGIN_BASE_PORT_CAP_IS856_A)
static guint32
get_level_for_capabilities (guint32 capabilities)
{
if (capabilities & MM_PLUGIN_BASE_PORT_CAP_GSM)
return 10;
if (capabilities & CAP_CDMA)
return 10;
if (capabilities & MM_PLUGIN_BASE_PORT_CAP_QCDM)
return 10;
return 0;
}
static void
probe_result (MMPluginBase *base,
MMPluginBaseSupportsTask *task,
guint32 capabilities,
gpointer user_data)
{
mm_plugin_base_supports_task_complete (task, get_level_for_capabilities (capabilities));
}
static gboolean
getportmode_response_cb (MMPluginBaseSupportsTask *task,
GString *response,
GError *error,
guint32 tries,
gboolean *out_stop,
guint32 *out_level,
gpointer user_data)
{
/* If any error occurred that was not ERROR or COMMAND NOT SUPPORT then
* retry the command.
*/
if (error) {
if (g_error_matches (error, MM_MOBILE_ERROR, MM_MOBILE_ERROR_UNKNOWN) == FALSE)
return tries <= 4 ? TRUE : FALSE;
} else {
MMPlugin *plugin;
char *p;
int i = 0;
/* Get the USB interface number of the PCUI port */
p = strstr (response->str, "PCUI:");
if (p)
i = atoi (p + strlen ("PCUI:"));
if (i) {
/* Save they PCUI port number for later */
plugin = mm_plugin_base_supports_task_get_plugin (task);
g_assert (plugin);
g_object_set_data (G_OBJECT (plugin), TAG_HUAWEI_PCUI_PORT, GINT_TO_POINTER (i));
}
}
/* No error or if ^GETPORTMODE is not supported, assume success */
return FALSE;
}
static gboolean
curc_response_cb (MMPluginBaseSupportsTask *task,
GString *response,
GError *error,
guint32 tries,
gboolean *out_stop,
guint32 *out_level,
gpointer user_data)
{
if (error)
return tries <= 4 ? TRUE : FALSE;
/* No error, assume success */
return FALSE;
}
static MMPluginSupportsResult
supports_port (MMPluginBase *base,
MMModem *existing,
MMPluginBaseSupportsTask *task)
{
GUdevDevice *port;
const char *subsys, *name;
int usbif;
guint16 vendor = 0, product = 0;
/* Can't do anything with non-serial ports */
port = mm_plugin_base_supports_task_get_port (task);
if (strcmp (g_udev_device_get_subsystem (port), "tty"))
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
subsys = g_udev_device_get_subsystem (port);
name = g_udev_device_get_name (port);
if (!mm_plugin_base_get_device_ids (base, subsys, name, &vendor, &product))
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
if (vendor != 0x12d1)
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
usbif = g_udev_device_get_property_as_int (port, "ID_USB_INTERFACE_NUM");
if (usbif < 0)
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
/* The primary port (called the "modem" port in the Windows drivers) is
* always USB interface 0, and we need to detect that interface first for
* two reasons: (1) to disable unsolicited messages on other ports that
* may fill up the buffer and crash the device, and (2) to attempt to get
* the port layout for hints about what the secondary port is (called the
* "pcui" port in Windows). Thus we probe USB interface 0 first and defer
* probing other interfaces until we've got if0, at which point we allow
* the other ports to be probed too.
*/
if (!existing && usbif != 0)
return MM_PLUGIN_SUPPORTS_PORT_DEFER;
/* Check if a previous probing was already launched in this port */
if (mm_plugin_base_supports_task_propagate_cached (task)) {
guint32 level;
/* A previous probing was already done, use its results */
level = get_level_for_capabilities (mm_plugin_base_supports_task_get_probed_capabilities (task));
if (level) {
mm_plugin_base_supports_task_complete (task, level);
return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
}
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
}
/* Turn off unsolicited messages on secondary ports until needed,
* and try to get a port map from the modem. The response will
* get handled in custom_init_response().
*/
if (usbif == 0) {
mm_plugin_base_supports_task_add_custom_init_command (task,
"AT^CURC=0",
3, /* delay */
curc_response_cb,
NULL);
mm_plugin_base_supports_task_add_custom_init_command (task,
"AT^GETPORTMODE",
3, /* delay */
getportmode_response_cb,
NULL);
}
/* Kick off a probe */
if (mm_plugin_base_probe_port (base, task, 100000, NULL))
return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
}
static MMModem *
grab_port (MMPluginBase *base,
MMModem *existing,
MMPluginBaseSupportsTask *task,
GError **error)
{
GUdevDevice *port = NULL;
MMModem *modem = NULL;
const char *name, *subsys, *devfile, *sysfs_path;
guint32 caps;
guint16 vendor = 0, product = 0;
port = mm_plugin_base_supports_task_get_port (task);
g_assert (port);
devfile = g_udev_device_get_device_file (port);
if (!devfile) {
g_set_error (error, 0, 0, "Could not get port's sysfs file.");
return NULL;
}
subsys = g_udev_device_get_subsystem (port);
name = g_udev_device_get_name (port);
if (!mm_plugin_base_get_device_ids (base, subsys, name, &vendor, &product)) {
g_set_error (error, 0, 0, "Could not get modem product ID.");
return NULL;
}
caps = mm_plugin_base_supports_task_get_probed_capabilities (task);
sysfs_path = mm_plugin_base_supports_task_get_physdev_path (task);
if (!existing) {
if (caps & MM_PLUGIN_BASE_PORT_CAP_GSM) {
modem = mm_modem_huawei_gsm_new (sysfs_path,
mm_plugin_base_supports_task_get_driver (task),
mm_plugin_get_name (MM_PLUGIN (base)),
vendor,
product);
} else if (caps & CAP_CDMA) {
modem = mm_modem_huawei_cdma_new (sysfs_path,
mm_plugin_base_supports_task_get_driver (task),
mm_plugin_get_name (MM_PLUGIN (base)),
!!(caps & MM_PLUGIN_BASE_PORT_CAP_IS856),
!!(caps & MM_PLUGIN_BASE_PORT_CAP_IS856_A),
vendor,
product);
}
if (modem) {
if (!mm_modem_grab_port (modem, subsys, name, MM_PORT_TYPE_UNKNOWN, NULL, error)) {
g_object_unref (modem);
return NULL;
}
}
} else {
MMPortType ptype = MM_PORT_TYPE_UNKNOWN;
int pcui_usbif, port_usbif;
/* Any additional AT ports can be secondary ports, but we want to ensure
* that the "pcui" port found from ^GETPORTMODE above is always set as
* a secondary port too.
*/
port_usbif = g_udev_device_get_property_as_int (port, "ID_USB_INTERFACE_NUM");
pcui_usbif = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (base), TAG_HUAWEI_PCUI_PORT));
if ( (port_usbif == pcui_usbif)
|| (caps & MM_PLUGIN_BASE_PORT_CAP_GSM)
|| (caps & CAP_CDMA))
ptype = MM_PORT_TYPE_SECONDARY;
else if (caps & MM_PLUGIN_BASE_PORT_CAP_QCDM)
ptype = MM_PORT_TYPE_QCDM;
modem = existing;
if (!mm_modem_grab_port (modem, subsys, name, ptype, NULL, error))
return NULL;
}
return modem;
}
/*****************************************************************************/
static void
mm_plugin_huawei_init (MMPluginHuawei *self)
{
g_signal_connect (self, "probe-result", G_CALLBACK (probe_result), NULL);
}
static void
mm_plugin_huawei_class_init (MMPluginHuaweiClass *klass)
{
MMPluginBaseClass *pb_class = MM_PLUGIN_BASE_CLASS (klass);
pb_class->supports_port = supports_port;
pb_class->grab_port = grab_port;
}