[PATCH v2 1/3] u8500: add plugin for u8500

[Jessica Nilsson <jessica.j.nilsson@stericsson.com>]

[-- Attachment #1: Type: text/plain, Size: 14786 bytes --]

---
 Makefile.am         |    4 +
 plugins/ofono.rules |    3 +
 plugins/u8500.c     |  507 +++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 514 insertions(+), 0 deletions(-)
 create mode 100644 plugins/u8500.c

diff --git a/Makefile.am b/Makefile.am
index a38fcb9..4762cc8 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -110,6 +110,7 @@ builtin_sources += $(gisi_sources) \
 				drivers/isimodem/mtc.h \
 				drivers/isimodem/debug.h \
 				drivers/isimodem/isiutil.h \
+				drivers/isimodem/version.h \
 				drivers/isimodem/debug.c \
 				drivers/isimodem/phonebook.c \
 				drivers/isimodem/devinfo.c \
@@ -144,6 +145,9 @@ builtin_sources += plugins/isiusb.c
 
 builtin_modules += n900
 builtin_sources += plugins/n900.c plugins/nokia-gpio.h plugins/nokia-gpio.c
+
+builtin_modules += u8500
+builtin_sources += plugins/u8500.c
 endif
 
 if ATMODEM
diff --git a/plugins/ofono.rules b/plugins/ofono.rules
index 111f071..333bff0 100644
--- a/plugins/ofono.rules
+++ b/plugins/ofono.rules
@@ -356,6 +356,9 @@ SUBSYSTEMS=="usb", ENV{OFONO_DRIVER}="isiusb", ENV{OFONO_ISI_ADDRESS}="16"
 # Nokia N900 modem
 SUBSYSTEMS=="hsi", ENV{OFONO_DRIVER}="n900", ENV{OFONO_ISI_ADDRESS}="108"
 
+# STE u8500
+KERNEL=="shrm0", ENV{OFONO_DRIVER}="u8500"
+
 LABEL="ofono_isi_end"
 
 SUBSYSTEM!="usb", GOTO="ofono_end"
diff --git a/plugins/u8500.c b/plugins/u8500.c
new file mode 100644
index 0000000..3a3b2bc
--- /dev/null
+++ b/plugins/u8500.c
@@ -0,0 +1,507 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2010  Nokia Corporation and/or its subsidiary(-ies).
+ *  Copyright (C) ST-Ericsson SA 2011.
+ *
+ *  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
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+
+#include <gisi/netlink.h>
+#include <gisi/modem.h>
+#include <gisi/client.h>
+#include <gisi/message.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <ofono/devinfo.h>
+#include <ofono/phonebook.h>
+#include <ofono/netreg.h>
+#include <ofono/voicecall.h>
+#include <ofono/sms.h>
+#include <ofono/cbs.h>
+#include <ofono/sim.h>
+#include <ofono/ussd.h>
+#include <ofono/ssn.h>
+#include <ofono/call-forwarding.h>
+#include <ofono/call-settings.h>
+#include <ofono/call-barring.h>
+#include <ofono/call-meter.h>
+#include <ofono/radio-settings.h>
+#include <ofono/gprs.h>
+#include <ofono/gprs-context.h>
+
+#include "drivers/isimodem/isimodem.h"
+#include "drivers/isimodem/isiutil.h"
+#include "drivers/isimodem/mtc.h"
+#include "drivers/isimodem/debug.h"
+#include "drivers/isimodem/version.h"
+
+struct isi_data {
+	char const *ifname;
+	GIsiModem *modem;
+	GIsiClient *client;
+	GIsiPhonetNetlink *link;
+	GIsiPhonetLinkState linkstate;
+	unsigned interval;
+	int reported;
+	ofono_bool_t online;
+	struct isi_cb_data *online_cbd;
+};
+
+static const GIsiVersion modemversion = {
+	.major = 2,
+	.minor = 5,
+};
+
+static gboolean check_response_status(const GIsiMessage *msg, uint8_t msgid)
+{
+	if (g_isi_msg_error(msg) < 0) {
+		DBG("Error: %s", strerror(-g_isi_msg_error(msg)));
+		return FALSE;
+	}
+
+	if (g_isi_msg_id(msg) != msgid) {
+		DBG("Unexpected msg: %s",
+			mce_message_id_name(g_isi_msg_id(msg)));
+		return FALSE;
+	}
+	return TRUE;
+}
+
+static void report_powered(struct ofono_modem *modem, struct isi_data *isi,
+				ofono_bool_t powered)
+{
+	if (powered == isi->reported)
+		return;
+
+	isi->reported = powered;
+	ofono_modem_set_powered(modem, powered);
+}
+
+static void report_online(struct isi_data *isi, ofono_bool_t online)
+{
+	struct isi_cb_data *cbd = isi->online_cbd;
+	ofono_modem_online_cb_t cb = cbd->cb;
+
+	isi->online_cbd = NULL;
+
+	if (isi->online == online)
+		CALLBACK_WITH_SUCCESS(cb, cbd->data);
+	else
+		CALLBACK_WITH_FAILURE(cb, cbd->data);
+
+	g_free(cbd);
+}
+
+static void set_power_by_mce_state(struct ofono_modem *modem,
+					struct isi_data *isi, int mce_state)
+{
+	switch (mce_state) {
+	case MCE_POWER_OFF:
+		report_powered(modem, isi, FALSE);
+		break;
+	case MCE_NORMAL:
+		if (isi->online_cbd)
+			report_online(isi, mce_state == MCE_NORMAL);
+	default:
+		report_powered(modem, isi, TRUE);
+	}
+}
+
+static void mce_state_ind_cb(const GIsiMessage *msg, void *data)
+{
+	struct ofono_modem *modem = data;
+	struct isi_data *isi = ofono_modem_get_data(modem);
+	uint8_t state;
+	uint8_t action;
+
+	if (!isi || g_isi_msg_id(msg) != MCE_MODEM_STATE_IND)
+		return;
+
+	if (!g_isi_msg_data_get_byte(msg, 0, &state) ||
+			!g_isi_msg_data_get_byte(msg, 1, &action))
+		return;
+
+	switch (action) {
+	case MCE_START:
+		DBG("target modem state: %s (0x%02X)",
+			mce_modem_state_name(state), state);
+		break;
+
+	case MCE_READY:
+		DBG("current modem state: %s (0x%02X)",
+			mce_modem_state_name(state), state);
+		set_power_by_mce_state(modem, isi, state);
+		break;
+	default:
+		break;
+	}
+}
+
+static void mce_rf_state_ind_cb(const GIsiMessage *msg, void *data)
+{
+	struct ofono_modem *modem = data;
+	struct isi_data *isi = ofono_modem_get_data(modem);
+	uint8_t state;
+	uint8_t action;
+
+	if (!isi || g_isi_msg_id(msg) != MCE_RF_STATE_IND)
+		return;
+
+	if (!g_isi_msg_data_get_byte(msg, 0, &state) ||
+			!g_isi_msg_data_get_byte(msg, 1, &action))
+		return;
+
+	switch (action) {
+	case MCE_READY:
+		DBG("current rf state: %s (0x%02X)",
+			mce_rf_state_name(state), state);
+		if (isi->online_cbd)
+			report_online(isi, state);
+		break;
+	case MCE_START:
+	default:
+		break;
+	}
+}
+
+static void mce_query_cb(const GIsiMessage *msg, void *data)
+{
+	struct ofono_modem *modem = data;
+	struct isi_data *isi = ofono_modem_get_data(modem);
+	uint8_t current;
+	uint8_t target;
+
+	if (!check_response_status(msg, MCE_MODEM_STATE_QUERY_RESP))
+		return;
+
+	if (!g_isi_msg_data_get_byte(msg, 0, &current) ||
+			!g_isi_msg_data_get_byte(msg, 1, &target))
+		return;
+
+	DBG("Modem state: current=%s (0x%02X) target=%s (0x%02X)",
+		mce_modem_state_name(current), current,
+		mce_modem_state_name(target), target);
+
+	if (current == target)
+		set_power_by_mce_state(modem, isi, current);
+}
+
+static gboolean bootstrap_current_state(gpointer user)
+{
+	struct ofono_modem *om = user;
+	struct isi_data *isi = ofono_modem_get_data(om);
+
+	const uint8_t req[] = {
+		MCE_MODEM_STATE_QUERY_REQ,
+		0x00, 0x00 /* Filler */
+	};
+	size_t len = sizeof(req);
+
+	g_isi_client_send(isi->client, req, len, mce_query_cb, om, NULL);
+
+	return FALSE;
+}
+
+static void reachable_cb(const GIsiMessage *msg, void *data)
+{
+	struct ofono_modem *om = data;
+	struct isi_data *isi = ofono_modem_get_data(om);
+
+	if (!g_isi_msg_error(msg) < 0)
+		return;
+
+	ISI_VERSION_DBG(msg);
+
+	g_isi_client_ind_subscribe(isi->client, MCE_MODEM_STATE_IND,
+					mce_state_ind_cb, om);
+
+	g_isi_client_ind_subscribe(isi->client, MCE_RF_STATE_IND,
+					mce_rf_state_ind_cb, om);
+
+	/*
+	 * FIXME: There is a theoretical race condition here:
+	 * g_isi_client_ind_subscribe() adds the actual message
+	 * sending for committing changes to subscriptions in idle
+	 * loop, which may or may not preserve ordering.  Thus, we
+	 * might miss a state indication if the bootstrap request ends
+	 * up being sent first.
+	 */
+	g_idle_add(bootstrap_current_state, om);
+}
+
+static void phonet_status_cb(GIsiModem *modem, GIsiPhonetLinkState st,
+				char const *ifname, void *data)
+{
+	struct ofono_modem *om = data;
+	struct isi_data *isi = ofono_modem_get_data(om);
+
+	DBG("Link %s (%u) is %s", isi->ifname, g_isi_modem_index(isi->modem),
+		st == PN_LINK_REMOVED ? "removed" :
+		st == PN_LINK_DOWN ? "down" : "up");
+
+	isi->linkstate = st;
+
+	if (st == PN_LINK_UP)
+		g_isi_client_verify(isi->client, reachable_cb, om, NULL);
+	else if (st == PN_LINK_DOWN)
+		set_power_by_mce_state(om, isi, MCE_POWER_OFF);
+}
+
+static int u8500_probe(struct ofono_modem *modem)
+{
+	const char *ifname = ofono_modem_get_string(modem, "Interface");
+	unsigned address = ofono_modem_get_integer(modem, "Address");
+	GIsiModem *isimodem;
+	GIsiClient *client = NULL;
+	GIsiPhonetNetlink *link = NULL;
+	struct isi_data *isi = NULL;
+
+	if (!ifname)
+		return -EINVAL;
+
+	DBG("(%p) with %s", modem, ifname);
+
+	isimodem = g_isi_modem_create_by_name(ifname);
+	if (!isimodem) {
+		DBG("Interface=%s: %s", ifname, strerror(errno));
+		return -errno;
+	}
+
+	if (!g_isi_modem_set_version(isimodem, modemversion))
+		return -EINVAL;
+
+	g_isi_modem_set_userdata(isimodem, modem);
+
+	if (getenv("OFONO_ISI_DEBUG"))
+		g_isi_modem_set_debug(isimodem, ofono_debug);
+
+	if (getenv("OFONO_ISI_TRACE"))
+		g_isi_modem_set_trace(isimodem, isi_trace);
+
+	if (g_isi_pn_netlink_by_modem(isimodem)) {
+		DBG("%s: %s", ifname, strerror(EBUSY));
+		errno = EBUSY;
+		goto error;
+	}
+
+	link = g_isi_pn_netlink_start(isimodem, phonet_status_cb, modem);
+	if (link == NULL) {
+		DBG("%s: %s", ifname, strerror(errno));
+		goto error;
+	}
+
+	if (address) {
+		int error = g_isi_pn_netlink_set_address(isimodem, address);
+		if (error && error != -EEXIST) {
+			DBG("g_isi_pn_netlink_set_address(): %s\n",
+				strerror(-error));
+			errno = -error;
+			goto error;
+		}
+	}
+
+	isi = g_try_new0(struct isi_data, 1);
+	if (!isi) {
+		errno = ENOMEM;
+		goto error;
+	}
+
+	client = g_isi_client_create(isimodem, PN_MODEM_MCE);
+	if (!client)
+		goto error;
+
+	isi->modem = isimodem;
+	isi->ifname = ifname;
+	isi->link = link;
+	isi->reported = -1;
+	isi->client = client;
+
+	ofono_modem_set_data(modem, isi);
+	return 0;
+
+error:
+	g_isi_pn_netlink_stop(link);
+	g_isi_client_destroy(client);
+	g_isi_modem_destroy(isimodem);
+	g_free(isi);
+
+	return -errno;
+}
+
+static void u8500_remove(struct ofono_modem *modem)
+{
+	struct isi_data *isi = ofono_modem_get_data(modem);
+
+	ofono_modem_set_data(modem, NULL);
+
+	if (isi == NULL)
+		return;
+
+	g_isi_pn_netlink_stop(isi->link);
+	g_isi_client_destroy(isi->client);
+	g_isi_modem_destroy(isi->modem);
+	g_free(isi);
+}
+
+static void mce_state_cb(const GIsiMessage *msg, void *data)
+{
+	struct isi_cb_data *cbd = data;
+	struct ofono_modem *modem = cbd->user;
+	ofono_modem_online_cb_t cb = cbd->cb;
+
+	struct isi_data *isi = ofono_modem_get_data(modem);
+	uint8_t cause;
+
+	if (!check_response_status(msg, MCE_RF_STATE_RESP))
+		goto error;
+
+	if (!g_isi_msg_data_get_byte(msg, 0, &cause))
+		goto error;
+
+	DBG("MCE cause: %s (0x%02X)", mce_status_info(cause), cause);
+
+	if (cause == MCE_OK) {
+		isi->online_cbd = cbd;
+		return;
+	}
+
+	if (cause == MCE_ALREADY_ACTIVE) {
+		CALLBACK_WITH_SUCCESS(cb, cbd->data);
+		g_free(cbd);
+		return;
+	}
+
+error:
+	CALLBACK_WITH_FAILURE(cb, cbd->data);
+	g_free(cbd);
+}
+
+static void u8500_online(struct ofono_modem *modem, ofono_bool_t online,
+				ofono_modem_online_cb_t cb, void *data)
+{
+	struct isi_data *isi = ofono_modem_get_data(modem);
+	struct isi_cb_data *cbd = isi_cb_data_new(modem, cb, data);
+	const uint8_t req[] = {
+		MCE_RF_STATE_REQ,
+		online ? MCE_RF_ON : MCE_RF_OFF,
+		0x00
+	};
+
+	DBG("(%p) with %s", modem, isi->ifname);
+
+	if (cbd == NULL || isi == NULL)
+		goto error;
+
+	if (g_isi_client_send_with_timeout(isi->client, req, sizeof(req),
+				MTC_STATE_REQ_TIMEOUT,
+				mce_state_cb, cbd, NULL)) {
+		isi->online = online;
+		return;
+	}
+
+error:
+	CALLBACK_WITH_FAILURE(cb, data);
+	g_free(cbd);
+}
+
+static void u8500_pre_sim(struct ofono_modem *modem)
+{
+	struct isi_data *isi = ofono_modem_get_data(modem);
+
+	DBG("(%p) with %s", modem, isi->ifname);
+
+	ofono_sim_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_devinfo_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_voicecall_create(modem, ISI_25, "isimodem", isi->modem);
+}
+
+static void u8500_post_sim(struct ofono_modem *modem)
+{
+	struct isi_data *isi = ofono_modem_get_data(modem);
+
+	DBG("(%p) with %s", modem, isi->ifname);
+
+	ofono_phonebook_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_call_forwarding_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_radio_settings_create(modem, ISI_25, "isimodem", isi->modem);
+}
+
+static void u8500_post_online(struct ofono_modem *modem)
+{
+	struct isi_data *isi = ofono_modem_get_data(modem);
+
+	DBG("(%p) with %s", modem, isi->ifname);
+
+	ofono_netreg_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_sms_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_cbs_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_ssn_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_ussd_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_call_settings_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_call_barring_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_call_meter_create(modem, ISI_25, "isimodem", isi->modem);
+	ofono_gprs_create(modem, ISI_25, "isimodem", isi->modem);
+}
+
+static int u8500_enable(struct ofono_modem *modem)
+{
+	return 0;
+}
+
+static int u8500_disable(struct ofono_modem *modem)
+{
+	return 0;
+}
+
+static struct ofono_modem_driver driver = {
+	.name = "u8500",
+	.probe = u8500_probe,
+	.remove = u8500_remove,
+	.set_online = u8500_online,
+	.pre_sim = u8500_pre_sim,
+	.post_sim = u8500_post_sim,
+	.post_online = u8500_post_online,
+	.enable = u8500_enable,
+	.disable = u8500_disable,
+};
+
+static int u8500_init(void)
+{
+	return ofono_modem_driver_register(&driver);
+}
+
+static void u8500_exit(void)
+{
+	ofono_modem_driver_unregister(&driver);
+}
+
+OFONO_PLUGIN_DEFINE(u8500, "Generic modem driver for isi",
+			VERSION, OFONO_PLUGIN_PRIORITY_DEFAULT,
+			u8500_init, u8500_exit)
-- 
1.7.3.5