Add at modem call volume driver

1 files changed, 232 insertions, 0 deletions

diff --git a/drivers/atmodem/call-volume.c b/drivers/atmodem/call-volume.c
new file mode 100644
index 00000000..d9a6cd03
--- /dev/null
+++ b/drivers/atmodem/call-volume.c
@@ -0,0 +1,232 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2009  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  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.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdio.h>
+
+#include <glib.h>
+
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <ofono/call-volume.h>
+
+#include "gatchat.h"
+#include "gatresult.h"
+
+#include "atmodem.h"
+
+static const char *clvl_prefix[] = { "+CLVL:", NULL };
+static const char *cmut_prefix[] = { "+CMUT:", NULL };
+static const char *none_prefix[] = { NULL };
+
+struct cv_data {
+	int clvl_min;
+	int clvl_max;
+	GAtChat *chat;
+};
+
+static void cmut_query(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_call_volume *cv = user_data;
+	GAtResultIter iter;
+	int muted;
+
+	if (!ok)
+		return;
+
+	g_at_result_iter_init(&iter, result);
+
+	if (!g_at_result_iter_next(&iter, "+CMUT:"))
+		return;
+
+	if (g_at_result_iter_next_number(&iter, &muted) == FALSE)
+		return;
+
+	ofono_call_volume_set_muted(cv, muted);
+}
+
+static void clvl_query(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_call_volume *cv = user_data;
+	struct cv_data *cvd = ofono_call_volume_get_data(cv);
+	GAtResultIter iter;
+	int lvl;
+	int percent;
+
+	if (!ok)
+		return;
+
+	if (cvd->clvl_max == 0 && cvd->clvl_min == 0)
+		return;
+
+	g_at_result_iter_init(&iter, result);
+
+	if (!g_at_result_iter_next(&iter, "+CLVL:"))
+		return;
+
+	if (g_at_result_iter_next_number(&iter, &lvl) == FALSE)
+		return;
+
+	percent = ((lvl - cvd->clvl_min) * 100) /
+				(cvd->clvl_max - cvd->clvl_min);
+
+	ofono_call_volume_set_speaker_volume(cv, percent);
+	ofono_call_volume_register(cv);
+}
+
+static void clvl_range_query(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_call_volume *cv = user_data;
+	struct cv_data *cvd = ofono_call_volume_get_data(cv);
+	GAtResultIter iter;
+
+	if (!ok)
+		return;
+
+	g_at_result_iter_init(&iter, result);
+
+	if (!g_at_result_iter_next(&iter, "+CLVL:"))
+		return;
+
+	/* Try opening the list, but don't fail */
+	g_at_result_iter_open_list(&iter);
+	g_at_result_iter_next_range(&iter, &cvd->clvl_min, &cvd->clvl_max);
+}
+
+static void cv_generic_set_cb(gboolean ok, GAtResult *result,
+				gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_call_volume_cb_t cb = cbd->cb;
+	struct ofono_error error;
+
+	decode_at_error(&error, g_at_result_final_response(result));
+
+	cb(&error, cbd->data);
+}
+
+static void at_call_volume_speaker_volume(struct ofono_call_volume *cv,
+						unsigned char percent,
+						ofono_call_volume_cb_t cb,
+						void *data)
+{
+	struct cv_data *cvd = ofono_call_volume_get_data(cv);
+	struct cb_data *cbd = cb_data_new(cb, data);
+	char buf[64];
+	int level;
+
+	if (!cbd)
+		goto error;
+
+	level = ((cvd->clvl_max - cvd->clvl_min) *
+			percent) / 100 + cvd->clvl_min;
+
+	snprintf(buf, sizeof(buf), "AT+CLVL=%d", level);
+
+	if (g_at_chat_send(cvd->chat, buf, none_prefix,
+				cv_generic_set_cb, cbd, g_free) > 0)
+		return;
+
+error:
+	if (cbd)
+		g_free(cbd);
+
+	CALLBACK_WITH_FAILURE(cb, data);
+}
+
+static void at_call_volume_mute(struct ofono_call_volume *cv, int muted,
+				ofono_call_volume_cb_t cb, void *data)
+{
+	struct cv_data *cvd = ofono_call_volume_get_data(cv);
+	struct cb_data *cbd = cb_data_new(cb, data);
+	char buf[64];
+
+	if (!cbd)
+		goto error;
+
+	snprintf(buf, sizeof(buf), "AT+CMUT=%d", muted);
+
+	if (g_at_chat_send(cvd->chat, buf, none_prefix,
+				cv_generic_set_cb, cbd, g_free) > 0)
+		return;
+
+error:
+	if (cbd)
+		g_free(cbd);
+
+	CALLBACK_WITH_FAILURE(cb, data);
+}
+
+static int at_call_volume_probe(struct ofono_call_volume *cv, unsigned int vendor,
+				void *data)
+{
+	GAtChat *chat = data;
+	struct cv_data *cvd;
+
+	DBG("%p", cv);
+
+	cvd = g_new0(struct cv_data, 1);
+	cvd->chat = chat;
+
+	ofono_call_volume_set_data(cv, cvd);
+
+	g_at_chat_send(chat, "AT+CMUT?", cmut_prefix,
+			cmut_query, cv, NULL);
+	g_at_chat_send(chat, "AT+CLVL=?", clvl_prefix,
+			clvl_range_query, cv, NULL);
+	g_at_chat_send(chat, "AT+CLVL?", clvl_prefix,
+			clvl_query, cv, NULL);
+
+	/* Generic driver does not support microphone level */
+	ofono_call_volume_set_microphone_volume(cv, 100);
+
+	return 0;
+}
+
+static void at_call_volume_remove(struct ofono_call_volume *cv)
+{
+	struct cv_data *cvd = ofono_call_volume_get_data(cv);
+
+	g_free(cvd);
+}
+
+static struct ofono_call_volume_driver driver = {
+	.name = "atmodem",
+	.probe = at_call_volume_probe,
+	.remove = at_call_volume_remove,
+	.speaker_volume = at_call_volume_speaker_volume,
+	.mute = at_call_volume_mute,
+};
+
+void at_call_volume_init()
+{
+	ofono_call_volume_driver_register(&driver);
+}
+
+void at_call_volume_exit()
+{
+	ofono_call_volume_driver_unregister(&driver);
+}