diff options
Diffstat (limited to 'drivers/atmodem/stk.c')
| -rw-r--r-- | drivers/atmodem/stk.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/drivers/atmodem/stk.c b/drivers/atmodem/stk.c new file mode 100644 index 00000000..05c1138a --- /dev/null +++ b/drivers/atmodem/stk.c @@ -0,0 +1,258 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2008-2010 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 <stdlib.h> +#include <stdio.h> + +#include <glib.h> + +#include <ofono/log.h> +#include <ofono/modem.h> +#include <ofono/stk.h> + +#include "gatchat.h" +#include "gatresult.h" + +#include "atmodem.h" + +struct stk_data { + GAtChat *chat; +}; + +static const char *csim_prefix[] = { "+CSIM:", NULL }; + +static void at_csim_envelope_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct cb_data *cbd = user_data; + GAtResultIter iter; + ofono_stk_envelope_cb_t cb = cbd->cb; + struct ofono_error error; + const guint8 *response; + gint rlen, len; + + decode_at_error(&error, g_at_result_final_response(result)); + + if (!ok) + goto error; + + g_at_result_iter_init(&iter, result); + + if (!g_at_result_iter_next(&iter, "+CSIM:")) + goto error; + + if (!g_at_result_iter_next_number(&iter, &rlen)) + goto error; + + if (!g_at_result_iter_next_hexstring(&iter, &response, &len)) + goto error; + + if (rlen != len * 2 || len < 2) + goto error; + + if (response[len - 2] != 0x90 && response[len - 2] != 0x91) + goto error; + + if (response[len - 2] == 0x90 && response[len - 1] != 0) + goto error; + + DBG("csim_envelope_cb: %i", len); + + cb(&error, response, len - 2, cbd->data); + return; + +error: + CALLBACK_WITH_FAILURE(cb, NULL, 0, cbd->data); +} + +static void at_stk_envelope(struct ofono_stk *stk, int length, + const guint8 *command, + ofono_stk_envelope_cb_t cb, void *data) +{ + struct stk_data *sd = ofono_stk_get_data(stk); + struct cb_data *cbd = cb_data_new(cb, data); + char *buf = g_try_new(char, 64 + length * 2); + int len, ret; + + if (!cbd || !buf) + goto error; + + len = sprintf(buf, "AT+CSIM=%i,A0C20000%02hhX", + 12 + length * 2, length); + + for (; length; length--) + len += sprintf(buf + len, "%02hhX", *command++); + + len += sprintf(buf + len, "FF"); + + ret = g_at_chat_send(sd->chat, buf, csim_prefix, + at_csim_envelope_cb, cbd, g_free); + + g_free(buf); + buf = NULL; + + if (ret > 0) + return; + +error: + if (buf) + g_free(buf); + + if (cbd) + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, NULL, 0, data); +} + +static void at_csim_terminal_response_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct cb_data *cbd = user_data; + GAtResultIter iter; + ofono_stk_generic_cb_t cb = cbd->cb; + struct ofono_error error; + const guint8 *response; + gint rlen, len; + + decode_at_error(&error, g_at_result_final_response(result)); + + if (!ok) + goto error; + + g_at_result_iter_init(&iter, result); + + if (!g_at_result_iter_next(&iter, "+CSIM:")) + goto error; + + if (!g_at_result_iter_next_number(&iter, &rlen)) + goto error; + + if (!g_at_result_iter_next_hexstring(&iter, &response, &len)) + goto error; + + if (rlen != len * 2 || len < 2) + goto error; + + if (response[len - 2] != 0x90 && response[len - 2] != 0x91) + goto error; + + if (response[len - 2] == 0x90 && response[len - 1] != 0) + goto error; + + DBG("csim_terminal_response_cb: %i", len); + + cb(&error, cbd->data); + return; + +error: + CALLBACK_WITH_FAILURE(cb, cbd->data); +} + +static void at_stk_terminal_response(struct ofono_stk *stk, int length, + const unsigned char *value, ofono_stk_generic_cb_t cb, + void *data) +{ + struct stk_data *sd = ofono_stk_get_data(stk); + struct cb_data *cbd = cb_data_new(cb, data); + char *buf = g_try_new(char, 64 + length * 2); + int len, ret; + + if (!cbd || !buf) + goto error; + + len = sprintf(buf, "AT+CSIM=%i,A0140000%02hhX", + 10 + length * 2, length); + + for (; length; length--) + len += sprintf(buf + len, "%02hhX", *value++); + + ret = g_at_chat_send(sd->chat, buf, csim_prefix, + at_csim_terminal_response_cb, cbd, g_free); + + g_free(buf); + buf = NULL; + + if (ret > 0) + return; + +error: + if (cbd) + g_free(cbd); + + CALLBACK_WITH_FAILURE(cb, data); +} + +static gboolean at_stk_register(gpointer user) +{ + struct ofono_stk *stk = user; + + ofono_stk_register(stk); + + return FALSE; +} + +static int at_stk_probe(struct ofono_stk *stk, unsigned int vendor, + void *data) +{ + GAtChat *chat = data; + struct stk_data *sd; + + sd = g_new0(struct stk_data, 1); + sd->chat = chat; + + ofono_stk_set_data(stk, sd); + g_idle_add(at_stk_register, stk); + + return 0; +} + +static void at_stk_remove(struct ofono_stk *stk) +{ + struct stk_data *sd = ofono_stk_get_data(stk); + + ofono_stk_set_data(stk, NULL); + + g_free(sd); +} + +static struct ofono_stk_driver driver = { + .name = "atmodem", + .probe = at_stk_probe, + .remove = at_stk_remove, + .envelope = at_stk_envelope, + .terminal_response = at_stk_terminal_response, +}; + +void at_stk_init() +{ + ofono_stk_driver_register(&driver); +} + +void at_stk_exit() +{ + ofono_stk_driver_unregister(&driver); +} |