344 lines
12 KiB
C
344 lines
12 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 - 2012 Red Hat, Inc.
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* Copyright (C) 2012 Lanedo GmbH
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*/
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#include <string.h>
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#include <stdlib.h>
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#include <gmodule.h>
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#define _LIBMM_INSIDE_MM
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#include <libmm-glib.h>
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#include "mm-log.h"
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#include "mm-plugin-sierra.h"
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#include "mm-broadband-modem-sierra.h"
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#include "mm-broadband-modem-sierra-icera.h"
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#if defined WITH_QMI
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#include "mm-broadband-modem-qmi.h"
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#endif
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#if defined WITH_MBIM
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#include "mm-broadband-modem-mbim.h"
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#endif
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G_DEFINE_TYPE (MMPluginSierra, mm_plugin_sierra, MM_TYPE_PLUGIN)
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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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/*****************************************************************************/
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/* Custom init */
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#define TAG_SIERRA_APP_PORT "sierra-app-port"
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#define TAG_SIERRA_APP1_PPP_OK "sierra-app1-ppp-ok"
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typedef struct {
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MMPortProbe *probe;
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MMPortSerialAt *port;
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GCancellable *cancellable;
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GSimpleAsyncResult *result;
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guint retries;
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} SierraCustomInitContext;
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static void
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sierra_custom_init_context_complete_and_free (SierraCustomInitContext *ctx)
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{
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g_simple_async_result_complete_in_idle (ctx->result);
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if (ctx->cancellable)
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g_object_unref (ctx->cancellable);
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g_object_unref (ctx->port);
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g_object_unref (ctx->probe);
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g_object_unref (ctx->result);
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g_slice_free (SierraCustomInitContext, ctx);
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}
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static gboolean
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sierra_custom_init_finish (MMPortProbe *probe,
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GAsyncResult *result,
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GError **error)
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{
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return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error);
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}
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static void sierra_custom_init_step (SierraCustomInitContext *ctx);
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static void
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gcap_ready (MMPortSerialAt *port,
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GAsyncResult *res,
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SierraCustomInitContext *ctx)
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{
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const gchar *response;
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GError *error = NULL;
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response = mm_port_serial_at_command_finish (port, res, &error);
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if (error) {
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/* If consumed all tries and the last error was a timeout, assume the
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* port is not AT */
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if (ctx->retries == 0 &&
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g_error_matches (error, MM_SERIAL_ERROR, MM_SERIAL_ERROR_RESPONSE_TIMEOUT)) {
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mm_port_probe_set_result_at (ctx->probe, FALSE);
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}
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/* If reported a hard parse error, this port is definitely not an AT
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* port, skip trying. */
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else if (g_error_matches (error, MM_SERIAL_ERROR, MM_SERIAL_ERROR_PARSE_FAILED)) {
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mm_port_probe_set_result_at (ctx->probe, FALSE);
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ctx->retries = 0;
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}
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/* Some Icera-based devices (eg, USB305) have an AT-style port that
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* replies to everything with ERROR, so tag as unsupported; sometimes
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* the real AT ports do this too, so let a retry tag the port as
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* supported if it responds correctly later. */
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else if (g_error_matches (error, MM_MOBILE_EQUIPMENT_ERROR, MM_MOBILE_EQUIPMENT_ERROR_UNKNOWN)) {
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mm_port_probe_set_result_at (ctx->probe, FALSE);
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}
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/* Just retry... */
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sierra_custom_init_step (ctx);
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goto out;
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}
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/* A valid reply to ATI tells us this is an AT port already */
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mm_port_probe_set_result_at (ctx->probe, TRUE);
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/* Sierra APPx ports have limited AT command parsers that just reply with
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* "OK" to most commands. These can sometimes be used for PPP while the
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* main port is used for status and control, but older modems tend to crash
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* or fail PPP. So we whitelist modems that are known to allow PPP on the
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* secondary APP ports.
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*/
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if (strstr (response, "APP1")) {
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g_object_set_data (G_OBJECT (ctx->probe), TAG_SIERRA_APP_PORT, GUINT_TO_POINTER (TRUE));
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/* PPP-on-APP1-port whitelist */
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if (strstr (response, "C885") ||
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strstr (response, "USB 306") ||
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strstr (response, "MC8790"))
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g_object_set_data (G_OBJECT (ctx->probe), TAG_SIERRA_APP1_PPP_OK, GUINT_TO_POINTER (TRUE));
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/* For debugging: let users figure out if their device supports PPP
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* on the APP1 port or not.
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*/
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if (getenv ("MM_SIERRA_APP1_PPP_OK")) {
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mm_dbg ("Sierra: APP1 PPP OK '%s'", response);
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g_object_set_data (G_OBJECT (ctx->probe), TAG_SIERRA_APP1_PPP_OK, GUINT_TO_POINTER (TRUE));
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}
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} else if (strstr (response, "APP2") ||
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strstr (response, "APP3") ||
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strstr (response, "APP4")) {
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/* Additional APP ports don't support most AT commands, so they cannot
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* be used as the primary port.
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*/
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g_object_set_data (G_OBJECT (ctx->probe), TAG_SIERRA_APP_PORT, GUINT_TO_POINTER (TRUE));
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}
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g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
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sierra_custom_init_context_complete_and_free (ctx);
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out:
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if (error)
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g_error_free (error);
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}
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static void
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sierra_custom_init_step (SierraCustomInitContext *ctx)
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{
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/* If cancelled, end */
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if (g_cancellable_is_cancelled (ctx->cancellable)) {
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mm_dbg ("(Sierra) no need to keep on running custom init in '%s'",
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mm_port_get_device (MM_PORT (ctx->port)));
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g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
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sierra_custom_init_context_complete_and_free (ctx);
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return;
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}
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if (ctx->retries == 0) {
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mm_dbg ("(Sierra) Couldn't get port type hints from '%s'",
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mm_port_get_device (MM_PORT (ctx->port)));
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g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
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sierra_custom_init_context_complete_and_free (ctx);
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return;
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}
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ctx->retries--;
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mm_port_serial_at_command (
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ctx->port,
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"ATI",
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3,
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FALSE, /* raw */
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FALSE, /* allow_cached */
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ctx->cancellable,
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(GAsyncReadyCallback)gcap_ready,
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ctx);
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}
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static void
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sierra_custom_init (MMPortProbe *probe,
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MMPortSerialAt *port,
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GCancellable *cancellable,
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GAsyncReadyCallback callback,
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gpointer user_data)
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{
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SierraCustomInitContext *ctx;
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ctx = g_slice_new (SierraCustomInitContext);
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ctx->result = g_simple_async_result_new (G_OBJECT (probe),
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callback,
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user_data,
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sierra_custom_init);
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ctx->probe = g_object_ref (probe);
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ctx->port = g_object_ref (port);
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ctx->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
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ctx->retries = 3;
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sierra_custom_init_step (ctx);
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}
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/*****************************************************************************/
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static gboolean
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sierra_port_probe_list_is_icera (GList *probes)
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{
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GList *l;
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for (l = probes; l; l = g_list_next (l)) {
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/* Only assume the Icera probing check is valid IF the port is not
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* secondary. This will skip the stupid ports which reply OK to every
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* AT command, even the one we use to check for Icera support */
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if (mm_port_probe_is_icera (MM_PORT_PROBE (l->data)) &&
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!g_object_get_data (G_OBJECT (l->data), TAG_SIERRA_APP_PORT))
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return TRUE;
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}
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return FALSE;
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}
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static MMBaseModem *
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create_modem (MMPlugin *self,
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const gchar *sysfs_path,
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const gchar **drivers,
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guint16 vendor,
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guint16 product,
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GList *probes,
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GError **error)
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{
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#if defined WITH_QMI
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if (mm_port_probe_list_has_qmi_port (probes)) {
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mm_dbg ("QMI-powered Sierra modem found...");
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return MM_BASE_MODEM (mm_broadband_modem_qmi_new (sysfs_path,
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drivers,
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mm_plugin_get_name (self),
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vendor,
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product));
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}
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#endif
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#if defined WITH_MBIM
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if (mm_port_probe_list_has_mbim_port (probes)) {
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mm_dbg ("MBIM-powered Sierra modem found...");
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return MM_BASE_MODEM (mm_broadband_modem_mbim_new (sysfs_path,
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drivers,
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mm_plugin_get_name (self),
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vendor,
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product));
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}
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#endif
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if (sierra_port_probe_list_is_icera (probes))
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return MM_BASE_MODEM (mm_broadband_modem_sierra_icera_new (sysfs_path,
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drivers,
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mm_plugin_get_name (self),
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vendor,
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product));
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return MM_BASE_MODEM (mm_broadband_modem_sierra_new (sysfs_path,
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drivers,
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mm_plugin_get_name (self),
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vendor,
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product));
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}
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static gboolean
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grab_port (MMPlugin *self,
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MMBaseModem *modem,
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MMPortProbe *probe,
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GError **error)
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{
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MMPortSerialAtFlag pflags = MM_PORT_SERIAL_AT_FLAG_NONE;
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MMPortType ptype;
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ptype = mm_port_probe_get_port_type (probe);
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/* Is it a GSM secondary port? */
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if (g_object_get_data (G_OBJECT (probe), TAG_SIERRA_APP_PORT)) {
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if (g_object_get_data (G_OBJECT (probe), TAG_SIERRA_APP1_PPP_OK))
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pflags = MM_PORT_SERIAL_AT_FLAG_PPP;
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else
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pflags = MM_PORT_SERIAL_AT_FLAG_SECONDARY;
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} else if (ptype == MM_PORT_TYPE_AT)
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pflags = MM_PORT_SERIAL_AT_FLAG_PRIMARY;
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return mm_base_modem_grab_port (modem,
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mm_port_probe_get_port_subsys (probe),
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mm_port_probe_get_port_name (probe),
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mm_port_probe_get_parent_path (probe),
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ptype,
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pflags,
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error);
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}
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/*****************************************************************************/
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G_MODULE_EXPORT MMPlugin *
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mm_plugin_create (void)
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{
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static const gchar *subsystems[] = { "tty", "net", "usb", NULL };
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static const gchar *drivers[] = { "sierra", "sierra_net", NULL };
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static const MMAsyncMethod custom_init = {
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.async = G_CALLBACK (sierra_custom_init),
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.finish = G_CALLBACK (sierra_custom_init_finish),
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};
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return MM_PLUGIN (
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g_object_new (MM_TYPE_PLUGIN_SIERRA,
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MM_PLUGIN_NAME, "Sierra",
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MM_PLUGIN_ALLOWED_SUBSYSTEMS, subsystems,
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MM_PLUGIN_ALLOWED_DRIVERS, drivers,
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MM_PLUGIN_ALLOWED_AT, TRUE,
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MM_PLUGIN_ALLOWED_QCDM, TRUE,
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MM_PLUGIN_ALLOWED_QMI, TRUE,
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MM_PLUGIN_ALLOWED_MBIM, TRUE,
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MM_PLUGIN_CUSTOM_INIT, &custom_init,
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MM_PLUGIN_ICERA_PROBE, TRUE,
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MM_PLUGIN_REMOVE_ECHO, FALSE,
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NULL));
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}
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static void
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mm_plugin_sierra_init (MMPluginSierra *self)
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{
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}
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static void
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mm_plugin_sierra_class_init (MMPluginSierraClass *klass)
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{
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MMPluginClass *plugin_class = MM_PLUGIN_CLASS (klass);
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plugin_class->create_modem = create_modem;
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plugin_class->grab_port = grab_port;
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}
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