diff options
Diffstat (limited to 'plugins/cinterion/mm-shared-cinterion.c')
| -rw-r--r-- | plugins/cinterion/mm-shared-cinterion.c | 812 |
1 files changed, 812 insertions, 0 deletions
diff --git a/plugins/cinterion/mm-shared-cinterion.c b/plugins/cinterion/mm-shared-cinterion.c new file mode 100644 index 00000000..ab95140a --- /dev/null +++ b/plugins/cinterion/mm-shared-cinterion.c @@ -0,0 +1,812 @@ +/* -*- 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) 2014 Ammonit Measurement GmbH + * Copyright (C) 2014 - 2018 Aleksander Morgado <aleksander@aleksander.es> + */ + +#include <config.h> + +#include <glib-object.h> +#include <gio/gio.h> + +#define _LIBMM_INSIDE_MM +#include <libmm-glib.h> + +#include "mm-log.h" +#include "mm-iface-modem.h" +#include "mm-iface-modem-location.h" +#include "mm-base-modem.h" +#include "mm-base-modem-at.h" +#include "mm-shared-cinterion.h" + +/*****************************************************************************/ +/* Private data context */ + +#define PRIVATE_TAG "shared-cinterion-private-tag" +static GQuark private_quark; + +typedef enum { + FEATURE_SUPPORT_UNKNOWN, + FEATURE_NOT_SUPPORTED, + FEATURE_SUPPORTED, +} FeatureSupport; + +typedef struct { + MMIfaceModemLocation *iface_modem_location_parent; + MMModemLocationSource supported_sources; + MMModemLocationSource enabled_sources; + FeatureSupport sgpss_support; + FeatureSupport sgpsc_support; +} Private; + +static void +private_free (Private *ctx) +{ + g_slice_free (Private, ctx); +} + +static Private * +get_private (MMSharedCinterion *self) +{ + Private *priv; + + if (G_UNLIKELY (!private_quark)) + private_quark = (g_quark_from_static_string (PRIVATE_TAG)); + + priv = g_object_get_qdata (G_OBJECT (self), private_quark); + if (!priv) { + priv = g_slice_new (Private); + + priv->supported_sources = MM_MODEM_LOCATION_SOURCE_NONE; + priv->enabled_sources = MM_MODEM_LOCATION_SOURCE_NONE; + priv->sgpss_support = FEATURE_SUPPORT_UNKNOWN; + priv->sgpsc_support = FEATURE_SUPPORT_UNKNOWN; + + /* Setup parent class' MMIfaceModemLocation */ + g_assert (MM_SHARED_CINTERION_GET_INTERFACE (self)->peek_parent_location_interface); + priv->iface_modem_location_parent = MM_SHARED_CINTERION_GET_INTERFACE (self)->peek_parent_location_interface (self); + + g_object_set_qdata_full (G_OBJECT (self), private_quark, priv, (GDestroyNotify)private_free); + } + + return priv; +} + +/*****************************************************************************/ +/* GPS trace received */ + +static void +trace_received (MMPortSerialGps *port, + const gchar *trace, + MMIfaceModemLocation *self) +{ + /* Helper to debug GPS location related issues. Don't depend on a real GPS + * fix for debugging, just use some random values to update */ +#if 0 + if (g_str_has_prefix (trace, "$GPGGA")) { + GString *str; + GDateTime *now; + + now = g_date_time_new_now_utc (); + str = g_string_new (""); + g_string_append_printf (str, + "$GPGGA,%02u%02u%02u,4807.038,N,01131.000,E,1,08,0.9,545.4,M,46.9,M,,*47", + g_date_time_get_hour (now), + g_date_time_get_minute (now), + g_date_time_get_second (now)); + mm_iface_modem_location_gps_update (self, str->str); + g_string_free (str, TRUE); + g_date_time_unref (now); + return; + } +#endif + + mm_iface_modem_location_gps_update (self, trace); +} + +/*****************************************************************************/ +/* Location capabilities loading (Location interface) */ + +MMModemLocationSource +mm_shared_cinterion_location_load_capabilities_finish (MMIfaceModemLocation *self, + GAsyncResult *res, + GError **error) +{ + GError *inner_error = NULL; + gssize aux; + + aux = g_task_propagate_int (G_TASK (res), &inner_error); + if (inner_error) { + g_propagate_error (error, inner_error); + return MM_MODEM_LOCATION_SOURCE_NONE; + } + return (MMModemLocationSource) aux; +} + +static void probe_gps_features (GTask *task); + +static void +sgpsc_test_ready (MMBaseModem *self, + GAsyncResult *res, + GTask *task) +{ + Private *priv; + + priv = get_private (MM_SHARED_CINTERION (self)); + + if (!mm_base_modem_at_command_finish (self, res, NULL)) + priv->sgpsc_support = FEATURE_NOT_SUPPORTED; + else { + /* ^SGPSC supported! */ + priv->sgpsc_support = FEATURE_SUPPORTED; + /* It may happen that the modem was started with GPS already enabled, or + * maybe ModemManager got rebooted and it was left enabled before. We'll + * make sure that it is disabled when we initialize the modem. */ + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSC=\"Engine\",\"0\"", 3, FALSE, NULL, NULL); + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSC=\"Power/Antenna\",\"off\"", 3, FALSE, NULL, NULL); + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSC=\"NMEA/Output\",\"off\"", 3, FALSE, NULL, NULL); + } + + probe_gps_features (task); +} + +static void +sgpss_test_ready (MMBaseModem *self, + GAsyncResult *res, + GTask *task) +{ + Private *priv; + + priv = get_private (MM_SHARED_CINTERION (self)); + + if (!mm_base_modem_at_command_finish (self, res, NULL)) + priv->sgpss_support = FEATURE_NOT_SUPPORTED; + else { + /* ^SGPSS supported! */ + priv->sgpss_support = FEATURE_SUPPORTED; + + /* Flag ^SGPSC as unsupported, even if it may be supported, so that we + * only use one set of commands to enable/disable GPS. */ + priv->sgpsc_support = FEATURE_NOT_SUPPORTED; + + /* It may happen that the modem was started with GPS already enabled, or + * maybe ModemManager got rebooted and it was left enabled before. We'll + * make sure that it is disabled when we initialize the modem. */ + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSS=0", 3, FALSE, NULL, NULL); + } + + probe_gps_features (task); +} + +static void +probe_gps_features (GTask *task) +{ + MMSharedCinterion *self; + MMModemLocationSource sources; + Private *priv; + + self = MM_SHARED_CINTERION (g_task_get_source_object (task)); + priv = get_private (self); + + /* Need to check if SGPSS supported... */ + if (priv->sgpss_support == FEATURE_SUPPORT_UNKNOWN) { + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSS=?", 3, TRUE, (GAsyncReadyCallback) sgpss_test_ready, task); + return; + } + + /* Need to check if SGPSC supported... */ + if (priv->sgpsc_support == FEATURE_SUPPORT_UNKNOWN) { + mm_base_modem_at_command (MM_BASE_MODEM (self), "AT^SGPSC=?", 3, TRUE, (GAsyncReadyCallback) sgpsc_test_ready, task); + return; + } + + /* All GPS features probed */ + + /* Recover parent sources */ + sources = GPOINTER_TO_UINT (g_task_get_task_data (task)); + + if (priv->sgpss_support == FEATURE_SUPPORTED || priv->sgpsc_support == FEATURE_SUPPORTED) { + mm_dbg ("GPS commands supported: GPS capabilities enabled"); + + /* We only flag as supported by this implementation those sources not already + * supported by the parent implementation */ + if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_NMEA)) + priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_NMEA; + if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_RAW)) + priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_RAW; + if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)) + priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED; + + sources |= priv->supported_sources; + + /* Add handler for the NMEA traces in the GPS data port */ + mm_port_serial_gps_add_trace_handler (mm_base_modem_peek_port_gps (MM_BASE_MODEM (self)), + (MMPortSerialGpsTraceFn)trace_received, + self, + NULL); + } else + mm_dbg ("No GPS command supported: no GPS capabilities"); + + g_task_return_int (task, (gssize) sources); + g_object_unref (task); +} + +static void +parent_load_capabilities_ready (MMIfaceModemLocation *self, + GAsyncResult *res, + GTask *task) +{ + MMModemLocationSource sources; + GError *error = NULL; + Private *priv; + + priv = get_private (MM_SHARED_CINTERION (self)); + + sources = priv->iface_modem_location_parent->load_capabilities_finish (self, res, &error); + if (error) { + g_task_return_error (task, error); + g_object_unref (task); + return; + } + + /* Now our own check. If we don't have any GPS port, we're done */ + if (!mm_base_modem_peek_port_gps (MM_BASE_MODEM (self))) { + mm_dbg ("No GPS data port found: no GPS capabilities"); + g_task_return_int (task, sources); + g_object_unref (task); + return; + } + + /* Cache sources supported by the parent */ + g_task_set_task_data (task, GUINT_TO_POINTER (sources), NULL); + + /* Probe all GPS features */ + probe_gps_features (task); +} + +void +mm_shared_cinterion_location_load_capabilities (MMIfaceModemLocation *self, + GAsyncReadyCallback callback, + gpointer user_data) +{ + Private *priv; + GTask *task; + + priv = get_private (MM_SHARED_CINTERION (self)); + task = g_task_new (self, NULL, callback, user_data); + + g_assert (priv->iface_modem_location_parent); + g_assert (priv->iface_modem_location_parent->load_capabilities); + g_assert (priv->iface_modem_location_parent->load_capabilities_finish); + + priv->iface_modem_location_parent->load_capabilities (self, + (GAsyncReadyCallback)parent_load_capabilities_ready, + task); +} + +/*****************************************************************************/ +/* Disable location gathering (Location interface) */ + +typedef enum { + DISABLE_LOCATION_GATHERING_GPS_STEP_FIRST, + DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSS, + DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE, + DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ANTENNA, + DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_OUTPUT, + DISABLE_LOCATION_GATHERING_GPS_STEP_LAST, +} DisableLocationGatheringGpsStep; + +typedef struct { + MMModemLocationSource source; + DisableLocationGatheringGpsStep gps_step; + GError *sgpss_error; + GError *sgpsc_error; +} DisableLocationGatheringContext; + +static void +disable_location_gathering_context_free (DisableLocationGatheringContext *ctx) +{ + if (ctx->sgpss_error) + g_error_free (ctx->sgpss_error); + if (ctx->sgpsc_error) + g_error_free (ctx->sgpsc_error); + g_slice_free (DisableLocationGatheringContext, ctx); +} + +gboolean +mm_shared_cinterion_disable_location_gathering_finish (MMIfaceModemLocation *self, + GAsyncResult *res, + GError **error) +{ + return g_task_propagate_boolean (G_TASK (res), error); +} + +static void disable_location_gathering_context_gps_step (GTask *task); + +static void +disable_sgpsc_ready (MMBaseModem *self, + GAsyncResult *res, + GTask *task) +{ + DisableLocationGatheringContext *ctx; + GError *error = NULL; + + ctx = (DisableLocationGatheringContext *) g_task_get_task_data (task); + + /* Store error, if not one available already, and continue */ + if (!mm_base_modem_at_command_finish (self, res, &error)) { + if (!ctx->sgpsc_error) + ctx->sgpsc_error = error; + else + g_error_free (error); + } + + ctx->gps_step++; + disable_location_gathering_context_gps_step (task); +} + +static void +disable_sgpss_ready (MMBaseModem *self, + GAsyncResult *res, + GTask *task) +{ + DisableLocationGatheringContext *ctx; + + ctx = (DisableLocationGatheringContext *) g_task_get_task_data (task); + + /* Store error, if any, and continue */ + g_assert (!ctx->sgpss_error); + mm_base_modem_at_command_finish (self, res, &ctx->sgpss_error); + + ctx->gps_step++; + disable_location_gathering_context_gps_step (task); +} + +static void +disable_location_gathering_context_gps_step (GTask *task) +{ + DisableLocationGatheringContext *ctx; + MMSharedCinterion *self; + Private *priv; + + self = MM_SHARED_CINTERION (g_task_get_source_object (task)); + priv = get_private (self); + ctx = (DisableLocationGatheringContext *) g_task_get_task_data (task); + + /* Only one of both supported */ + g_assert ((priv->sgpss_support == FEATURE_SUPPORTED) || (priv->sgpsc_support == FEATURE_SUPPORTED)); + g_assert (!((priv->sgpss_support == FEATURE_SUPPORTED) && (priv->sgpsc_support == FEATURE_SUPPORTED))); + + switch (ctx->gps_step) { + case DISABLE_LOCATION_GATHERING_GPS_STEP_FIRST: + ctx->gps_step++; + /* Fall down to next step */ + + case DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSS: + if (priv->sgpss_support == FEATURE_SUPPORTED) { + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSS=0", + 3, FALSE, (GAsyncReadyCallback) disable_sgpss_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* Engine off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"Engine\",\"0\"", + 3, FALSE, (GAsyncReadyCallback) disable_sgpsc_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ANTENNA: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* Antenna off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"Power/Antenna\",\"off\"", + 3, FALSE, (GAsyncReadyCallback) disable_sgpsc_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case DISABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_OUTPUT: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* NMEA output off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"NMEA/Output\",\"off\"", + 3, FALSE, (GAsyncReadyCallback) disable_sgpsc_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case DISABLE_LOCATION_GATHERING_GPS_STEP_LAST: + /* Only use the GPS port in NMEA/RAW setups */ + if (ctx->source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | MM_MODEM_LOCATION_SOURCE_GPS_RAW)) { + MMPortSerialGps *gps_port; + + /* Even if we get an error here, we try to close the GPS port */ + gps_port = mm_base_modem_peek_port_gps (MM_BASE_MODEM (self)); + if (gps_port) + mm_port_serial_close (MM_PORT_SERIAL (gps_port)); + } + + if (ctx->sgpss_error) { + g_task_return_error (task, ctx->sgpss_error); + g_clear_error (&ctx->sgpss_error); + } else if (ctx->sgpsc_error) { + g_task_return_error (task, ctx->sgpsc_error); + g_clear_error (&ctx->sgpsc_error); + } else { + priv->enabled_sources &= ~ctx->source; + g_task_return_boolean (task, TRUE); + } + g_object_unref (task); + return; + } +} + +static void +parent_disable_location_gathering_ready (MMIfaceModemLocation *self, + GAsyncResult *res, + GTask *task) +{ + GError *error; + Private *priv; + + priv = get_private (MM_SHARED_CINTERION (self)); + + g_assert (priv->iface_modem_location_parent); + if (!priv->iface_modem_location_parent->disable_location_gathering_finish (self, res, &error)) + g_task_return_error (task, error); + else + g_task_return_boolean (task, TRUE); + g_object_unref (task); +} + +void +mm_shared_cinterion_disable_location_gathering (MMIfaceModemLocation *self, + MMModemLocationSource source, + GAsyncReadyCallback callback, + gpointer user_data) +{ + DisableLocationGatheringContext *ctx; + MMModemLocationSource enabled_sources; + Private *priv; + GTask *task; + + task = g_task_new (self, NULL, callback, user_data); + + priv = get_private (MM_SHARED_CINTERION (self)); + g_assert (priv->iface_modem_location_parent); + + /* Only consider request if it applies to one of the sources we are + * supporting, otherwise run parent disable */ + if (!(priv->supported_sources & source)) { + /* If disabling implemented by the parent, run it. */ + if (priv->iface_modem_location_parent->disable_location_gathering && + priv->iface_modem_location_parent->disable_location_gathering_finish) { + priv->iface_modem_location_parent->disable_location_gathering (self, + source, + (GAsyncReadyCallback)parent_disable_location_gathering_ready, + task); + return; + } + /* Otherwise, we're done */ + g_task_return_boolean (task, TRUE); + g_object_unref (task); + return; + } + + /* We only expect GPS sources here */ + g_assert (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | + MM_MODEM_LOCATION_SOURCE_GPS_RAW | + MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)); + + /* Flag as disabled to see how many others we would have left enabled */ + enabled_sources = priv->enabled_sources; + enabled_sources &= ~source; + + /* If there are still GPS-related sources enabled, do nothing else */ + if (enabled_sources & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | + MM_MODEM_LOCATION_SOURCE_GPS_RAW | + MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)) { + priv->enabled_sources &= ~source; + g_task_return_boolean (task, TRUE); + g_object_unref (task); + return; + } + + /* Stop GPS engine if all GPS-related sources are disabled */ + ctx = g_slice_new0 (DisableLocationGatheringContext); + ctx->source = source; + ctx->gps_step = DISABLE_LOCATION_GATHERING_GPS_STEP_FIRST; + g_task_set_task_data (task, ctx, (GDestroyNotify) disable_location_gathering_context_free); + disable_location_gathering_context_gps_step (task); +} + +/*****************************************************************************/ +/* Enable location gathering (Location interface) */ + +/* We will retry the SGPSC command that enables the Engine */ +#define MAX_SGPSC_ENGINE_RETRIES 3 + +/* Cinterion asks for 100ms some time between GPS commands, but we'll give up + * to 2000ms before setting the Engine configuration as 100ms didn't seem always + * enough (we would get +CME ERROR: 767 errors reported). */ +#define GPS_COMMAND_TIMEOUT_DEFAULT_MS 100 +#define GPS_COMMAND_TIMEOUT_ENGINE_MS 2000 + +typedef enum { + ENABLE_LOCATION_GATHERING_GPS_STEP_FIRST, + ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSS, + ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_OUTPUT, + ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ANTENNA, + ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE, + ENABLE_LOCATION_GATHERING_GPS_STEP_LAST, +} EnableLocationGatheringGpsStep; + +typedef struct { + MMModemLocationSource source; + EnableLocationGatheringGpsStep gps_step; + guint sgpsc_engine_retries; +} EnableLocationGatheringContext; + +static void +enable_location_gathering_context_free (EnableLocationGatheringContext *ctx) +{ + g_slice_free (EnableLocationGatheringContext, ctx); +} + +gboolean +mm_shared_cinterion_enable_location_gathering_finish (MMIfaceModemLocation *self, + GAsyncResult *res, + GError **error) +{ + return g_task_propagate_boolean (G_TASK (res), error); +} + +static void enable_location_gathering_context_gps_step (GTask *task); + +static gboolean +enable_location_gathering_context_gps_step_schedule_cb (GTask *task) +{ + /* Run the scheduled step */ + enable_location_gathering_context_gps_step (task); + return G_SOURCE_REMOVE; +} + +static void +enable_sgpsc_or_sgpss_ready (MMBaseModem *self, + GAsyncResult *res, + GTask *task) +{ + EnableLocationGatheringContext *ctx; + GError *error = NULL; + + ctx = (EnableLocationGatheringContext *) g_task_get_task_data (task); + + if (!mm_base_modem_at_command_finish (self, res, &error)) { + /* The GPS setup may sometimes report "+CME ERROR 767" when enabling the + * Engine; so we'll run some retries of the same command ourselves. */ + if (ctx->gps_step == ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE) { + ctx->sgpsc_engine_retries++; + mm_dbg ("GPS Engine setup failed (%u/%u)", ctx->sgpsc_engine_retries, MAX_SGPSC_ENGINE_RETRIES); + if (ctx->sgpsc_engine_retries < MAX_SGPSC_ENGINE_RETRIES) { + g_clear_error (&error); + goto schedule; + } + } + g_task_return_error (task, error); + g_object_unref (task); + return; + } + + /* Go on to next step */ + ctx->gps_step++; + +schedule: + g_timeout_add (ctx->gps_step == ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE ? GPS_COMMAND_TIMEOUT_ENGINE_MS : GPS_COMMAND_TIMEOUT_DEFAULT_MS, + (GSourceFunc) enable_location_gathering_context_gps_step_schedule_cb, task); +} + +static void +enable_location_gathering_context_gps_step (GTask *task) +{ + EnableLocationGatheringContext *ctx; + MMSharedCinterion *self; + Private *priv; + + self = MM_SHARED_CINTERION (g_task_get_source_object (task)); + priv = get_private (self); + ctx = (EnableLocationGatheringContext *) g_task_get_task_data (task); + + /* Only one of both supported */ + g_assert ((priv->sgpss_support == FEATURE_SUPPORTED) || (priv->sgpsc_support == FEATURE_SUPPORTED)); + g_assert (!((priv->sgpss_support == FEATURE_SUPPORTED) && (priv->sgpsc_support == FEATURE_SUPPORTED))); + + switch (ctx->gps_step) { + case ENABLE_LOCATION_GATHERING_GPS_STEP_FIRST: + ctx->gps_step++; + /* Fall down to next step */ + + case ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSS: + if (priv->sgpss_support == FEATURE_SUPPORTED) { + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSS=4", + 3, FALSE, (GAsyncReadyCallback) enable_sgpsc_or_sgpss_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_OUTPUT: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* NMEA output off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"NMEA/Output\",\"on\"", + 3, FALSE, (GAsyncReadyCallback) enable_sgpsc_or_sgpss_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + + case ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ANTENNA: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* Antenna off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"Power/Antenna\",\"on\"", + 3, FALSE, (GAsyncReadyCallback) enable_sgpsc_or_sgpss_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case ENABLE_LOCATION_GATHERING_GPS_STEP_SGPSC_ENGINE: + if (priv->sgpsc_support == FEATURE_SUPPORTED) { + /* Engine off */ + mm_base_modem_at_command (MM_BASE_MODEM (self), + "AT^SGPSC=\"Engine\",\"1\"", + 3, FALSE, (GAsyncReadyCallback) enable_sgpsc_or_sgpss_ready, task); + return; + } + ctx->gps_step++; + /* Fall down to next step */ + + case ENABLE_LOCATION_GATHERING_GPS_STEP_LAST: + /* Only use the GPS port in NMEA/RAW setups */ + if (ctx->source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | + MM_MODEM_LOCATION_SOURCE_GPS_RAW)) { + MMPortSerialGps *gps_port; + GError *error = NULL; + + gps_port = mm_base_modem_peek_port_gps (MM_BASE_MODEM (self)); + if (!gps_port || !mm_port_serial_open (MM_PORT_SERIAL (gps_port), &error)) { + if (error) + g_task_return_error (task, error); + else + g_task_return_new_error (task, MM_CORE_ERROR, MM_CORE_ERROR_FAILED, + "Couldn't open raw GPS serial port"); + g_object_unref (task); + return; + } + } + + /* Success */ + priv->enabled_sources |= ctx->source; + g_task_return_boolean (task, TRUE); + g_object_unref (task); + return; + } +} + +static void +parent_enable_location_gathering_ready (MMIfaceModemLocation *self, + GAsyncResult *res, + GTask *task) +{ + GError *error; + Private *priv; + + priv = get_private (MM_SHARED_CINTERION (self)); + + g_assert (priv->iface_modem_location_parent); + if (!priv->iface_modem_location_parent->enable_location_gathering_finish (self, res, &error)) + g_task_return_error (task, error); + else + g_task_return_boolean (task, TRUE); + g_object_unref (task); +} + +void +mm_shared_cinterion_enable_location_gathering (MMIfaceModemLocation *self, + MMModemLocationSource source, + GAsyncReadyCallback callback, + gpointer user_data) +{ + Private *priv; + GTask *task; + EnableLocationGatheringContext *ctx; + + + task = g_task_new (self, NULL, callback, user_data); + + priv = get_private (MM_SHARED_CINTERION (self)); + g_assert (priv->iface_modem_location_parent); + g_assert (priv->iface_modem_location_parent->enable_location_gathering); + g_assert (priv->iface_modem_location_parent->enable_location_gathering_finish); + + /* Only consider request if it applies to one of the sources we are + * supporting, otherwise run parent enable */ + if (!(priv->supported_sources & source)) { + priv->iface_modem_location_parent->enable_location_gathering (self, + source, + (GAsyncReadyCallback)parent_enable_location_gathering_ready, + task); + return; + } + + /* We only expect GPS sources here */ + g_assert (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | + MM_MODEM_LOCATION_SOURCE_GPS_RAW | + MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)); + + /* If GPS already started, store new flag and we're done */ + if (priv->enabled_sources & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | + MM_MODEM_LOCATION_SOURCE_GPS_RAW | + MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)) { + priv->enabled_sources |= source; + g_task_return_boolean (task, TRUE); + g_object_unref (task); + return; + } + + ctx = g_slice_new0 (EnableLocationGatheringContext); + ctx->source = source; + ctx->gps_step = ENABLE_LOCATION_GATHERING_GPS_STEP_FIRST; + g_task_set_task_data (task, ctx, (GDestroyNotify) enable_location_gathering_context_free); + + enable_location_gathering_context_gps_step (task); +} + +/*****************************************************************************/ + +static void +shared_cinterion_init (gpointer g_iface) +{ +} + +GType +mm_shared_cinterion_get_type (void) +{ + static GType shared_cinterion_type = 0; + + if (!G_UNLIKELY (shared_cinterion_type)) { + static const GTypeInfo info = { + sizeof (MMSharedCinterion), /* class_size */ + shared_cinterion_init, /* base_init */ + NULL, /* base_finalize */ + }; + + shared_cinterion_type = g_type_register_static (G_TYPE_INTERFACE, "MMSharedCinterion", &info, 0); + g_type_interface_add_prerequisite (shared_cinterion_type, MM_TYPE_IFACE_MODEM_LOCATION); + } + + return shared_cinterion_type; +} |