Dan Williams
6077763d90
Allow plugins to perform asynchronous port detection, and to defer port detection until later. This moves the prober bits into MMPluginBase so that all plugins can take adavantage of it only when needed; the probing is not done at udev time. Furthermore, plugins like Novatel can flip the secondary ports over the AT mode through deferred detection, by deferring the secondary ports until the main port has been detected and AT$NWDMAT has been sent. This commit also finishes the port of the rest of the plugins (except mbm) over to the new port detection methods and plugin API.
338 lines
11 KiB
C
338 lines
11 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details:
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*
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* Copyright (C) 2008 - 2009 Novell, Inc.
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* Copyright (C) 2009 Red Hat, Inc.
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*/
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#include <string.h>
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#include <gmodule.h>
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#define G_UDEV_API_IS_SUBJECT_TO_CHANGE
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#include <gudev/gudev.h>
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#include "mm-plugin-huawei.h"
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#include "mm-generic-gsm.h"
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#include "mm-generic-cdma.h"
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#include "mm-modem-huawei.h"
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#include "mm-serial-parsers.h"
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G_DEFINE_TYPE (MMPluginHuawei, mm_plugin_huawei, MM_TYPE_PLUGIN_BASE)
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int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION;
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int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;
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G_MODULE_EXPORT MMPlugin *
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mm_plugin_create (void)
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{
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return MM_PLUGIN (g_object_new (MM_TYPE_PLUGIN_HUAWEI,
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MM_PLUGIN_BASE_NAME, "Huawei",
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NULL));
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}
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/*****************************************************************************/
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#define CAP_CDMA (MM_PLUGIN_BASE_PORT_CAP_IS707_A | \
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MM_PLUGIN_BASE_PORT_CAP_IS707_P | \
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MM_PLUGIN_BASE_PORT_CAP_IS856 | \
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MM_PLUGIN_BASE_PORT_CAP_IS856_A)
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static guint32
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get_level_for_capabilities (guint32 capabilities)
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{
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if (capabilities & MM_PLUGIN_BASE_PORT_CAP_GSM)
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return 10;
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if (capabilities & CAP_CDMA)
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return 10;
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return 0;
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}
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static void
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probe_result (MMPluginBase *base,
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MMPluginBaseSupportsTask *task,
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guint32 capabilities,
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gpointer user_data)
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{
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mm_plugin_base_supports_task_complete (task, get_level_for_capabilities (capabilities));
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}
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#define TAG_SUPPORTS_INFO "huawei-supports-info"
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typedef struct {
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MMSerialPort *serial;
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guint id;
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gboolean secondary;
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} HuaweiSupportsInfo;
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static void
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huawei_supports_info_destroy (gpointer user_data)
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{
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HuaweiSupportsInfo *info = user_data;
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if (info->id)
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g_source_remove (info->id);
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if (info->serial)
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g_object_unref (info->serial);
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memset (info, 0, sizeof (HuaweiSupportsInfo));
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g_free (info);
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}
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static gboolean
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probe_secondary_supported (gpointer user_data)
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{
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MMPluginBaseSupportsTask *task = user_data;
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HuaweiSupportsInfo *info;
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info = g_object_get_data (G_OBJECT (task), TAG_SUPPORTS_INFO);
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info->id = 0;
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g_object_unref (info->serial);
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info->serial = NULL;
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/* Yay, supported, we got an unsolicited message */
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info->secondary = TRUE;
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mm_plugin_base_supports_task_complete (task, 10);
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return FALSE;
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}
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static void
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probe_secondary_handle_msg (MMSerialPort *port,
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GMatchInfo *match_info,
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gpointer user_data)
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{
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MMPluginBaseSupportsTask *task = user_data;
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HuaweiSupportsInfo *info;
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info = g_object_get_data (G_OBJECT (task), TAG_SUPPORTS_INFO);
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g_source_remove (info->id);
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info->id = g_idle_add (probe_secondary_supported, task);
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}
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static gboolean
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probe_secondary_timeout (gpointer user_data)
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{
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MMPluginBaseSupportsTask *task = user_data;
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HuaweiSupportsInfo *info;
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info = g_object_get_data (G_OBJECT (task), TAG_SUPPORTS_INFO);
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info->id = 0;
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g_object_unref (info->serial);
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info->serial = NULL;
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/* Not supported by this plugin */
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mm_plugin_base_supports_task_complete (task, 0);
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return FALSE;
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}
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static void
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add_regex (MMSerialPort *port, const char *match, gpointer user_data)
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{
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GRegex *regex;
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regex = g_regex_new (match, G_REGEX_RAW | G_REGEX_OPTIMIZE, 0, NULL);
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mm_serial_port_add_unsolicited_msg_handler (port, regex, probe_secondary_handle_msg, user_data, NULL);
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g_regex_unref (regex);
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}
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static MMPluginSupportsResult
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supports_port (MMPluginBase *base,
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MMModem *existing,
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MMPluginBaseSupportsTask *task)
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{
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GUdevDevice *port;
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guint32 cached = 0, level;
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const char *subsys, *name;
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int usbif;
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guint16 vendor = 0, product = 0;
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guint32 existing_type = MM_MODEM_TYPE_UNKNOWN;
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/* Can't do anything with non-serial ports */
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port = mm_plugin_base_supports_task_get_port (task);
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if (strcmp (g_udev_device_get_subsystem (port), "tty"))
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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subsys = g_udev_device_get_subsystem (port);
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name = g_udev_device_get_name (port);
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if (!mm_plugin_base_get_device_ids (base, subsys, name, &vendor, &product))
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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if (vendor != 0x12d1)
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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usbif = g_udev_device_get_property_as_int (port, "ID_USB_INTERFACE_NUM");
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if (usbif < 0)
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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/* The secondary ports don't necessarily respond correctly to probing, so
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* we need to use the first port that does respond to probing to create the
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* right type of mode (GSM or CDMA), and then re-check the other interfaces.
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*/
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if (!existing && usbif != 0)
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return MM_PLUGIN_SUPPORTS_PORT_DEFER;
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/* CDMA devices don't have problems with the secondary ports, so after
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* ensuring we have a device by probing the first port, probe the secondary
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* ports on CDMA devices too.
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*/
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if (existing)
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g_object_get (G_OBJECT (existing), MM_MODEM_TYPE, &existing_type, NULL);
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if (usbif == 0 || (existing_type == MM_MODEM_TYPE_CDMA)) {
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if (mm_plugin_base_get_cached_port_capabilities (base, port, &cached)) {
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level = get_level_for_capabilities (cached);
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if (level) {
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mm_plugin_base_supports_task_complete (task, level);
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return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
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}
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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}
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/* Otherwise kick off a probe */
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if (mm_plugin_base_probe_port (base, task, NULL))
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return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
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} else {
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HuaweiSupportsInfo *info;
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GError *error = NULL;
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/* Listen for Huawei-specific unsolicited messages */
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info = g_malloc0 (sizeof (HuaweiSupportsInfo));
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info->serial = mm_serial_port_new (name, MM_PORT_TYPE_PRIMARY);
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g_object_set (G_OBJECT (info->serial), MM_PORT_CARRIER_DETECT, FALSE, NULL);
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mm_serial_port_set_response_parser (info->serial,
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mm_serial_parser_v1_parse,
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mm_serial_parser_v1_new (),
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mm_serial_parser_v1_destroy);
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add_regex (info->serial, "\\r\\n\\^RSSI:(\\d+)\\r\\n", task);
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add_regex (info->serial, "\\r\\n\\^MODE:(\\d),(\\d)\\r\\n", task);
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add_regex (info->serial, "\\r\\n\\^DSFLOWRPT:(.+)\\r\\n", task);
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add_regex (info->serial, "\\r\\n\\^BOOT:.+\\r\\n", task);
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info->id = g_timeout_add (5000, probe_secondary_timeout, task);
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g_object_set_data_full (G_OBJECT (task), TAG_SUPPORTS_INFO,
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info, huawei_supports_info_destroy);
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if (!mm_serial_port_open (info->serial, &error)) {
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g_warning ("%s: (Huawei) %s: couldn't open serial port: (%d) %s",
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__func__, name,
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error ? error->code : -1,
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error && error->message ? error->message : "(unknown)");
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g_clear_error (&error);
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huawei_supports_info_destroy (info);
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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}
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return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
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}
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return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
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}
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static MMModem *
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grab_port (MMPluginBase *base,
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MMModem *existing,
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MMPluginBaseSupportsTask *task,
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GError **error)
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{
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GUdevDevice *port = NULL, *physdev = NULL;
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MMModem *modem = NULL;
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const char *name, *subsys, *devfile, *sysfs_path;
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guint32 caps;
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guint16 product = 0;
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port = mm_plugin_base_supports_task_get_port (task);
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g_assert (port);
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devfile = g_udev_device_get_device_file (port);
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if (!devfile) {
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g_set_error (error, 0, 0, "Could not get port's sysfs file.");
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return NULL;
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}
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physdev = mm_plugin_base_supports_task_get_physdev (task);
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g_assert (physdev);
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sysfs_path = g_udev_device_get_sysfs_path (physdev);
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if (!sysfs_path) {
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g_set_error (error, 0, 0, "Could not get port's physical device sysfs path.");
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return NULL;
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}
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subsys = g_udev_device_get_subsystem (port);
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name = g_udev_device_get_name (port);
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if (!mm_plugin_base_get_device_ids (base, subsys, name, NULL, &product)) {
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g_set_error (error, 0, 0, "Could not get modem product ID.");
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return NULL;
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}
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caps = mm_plugin_base_supports_task_get_probed_capabilities (task);
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if (!existing) {
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if (caps & MM_PLUGIN_BASE_PORT_CAP_GSM) {
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if (product == 0x1001) {
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/* This modem is handled by generic GSM driver */
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modem = mm_generic_gsm_new (sysfs_path,
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mm_plugin_base_supports_task_get_driver (task),
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mm_plugin_get_name (MM_PLUGIN (base)));
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} else {
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modem = mm_modem_huawei_new (sysfs_path,
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mm_plugin_base_supports_task_get_driver (task),
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mm_plugin_get_name (MM_PLUGIN (base)));
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}
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} else if (caps & CAP_CDMA) {
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modem = mm_generic_cdma_new (sysfs_path,
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mm_plugin_base_supports_task_get_driver (task),
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mm_plugin_get_name (MM_PLUGIN (base)));
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}
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if (modem) {
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if (!mm_modem_grab_port (modem, subsys, name, NULL, error)) {
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g_object_unref (modem);
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return NULL;
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}
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}
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} else {
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HuaweiSupportsInfo *info;
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gboolean huawei_is_secondary = FALSE;
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info = g_object_get_data (G_OBJECT (task), TAG_SUPPORTS_INFO);
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if (info && (product != 0x1001))
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huawei_is_secondary = info->secondary;
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modem = existing;
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if (!mm_modem_grab_port (modem, subsys, name, GUINT_TO_POINTER (huawei_is_secondary), error))
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return NULL;
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}
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return modem;
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}
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/*****************************************************************************/
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static void
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mm_plugin_huawei_init (MMPluginHuawei *self)
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{
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g_signal_connect (self, "probe-result", G_CALLBACK (probe_result), NULL);
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}
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static void
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mm_plugin_huawei_class_init (MMPluginHuaweiClass *klass)
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{
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MMPluginBaseClass *pb_class = MM_PLUGIN_BASE_CLASS (klass);
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pb_class->supports_port = supports_port;
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pb_class->grab_port = grab_port;
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}
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