Esempio n. 1
0
/** Get a list of all virtues of the specified type.
 *
 * When NIC_WV_NONE is specified as the virtue type the function
 * lists virtues of all types.
 *
 * @param[in]  dev_sess
 * @param[in]  type      Type of the virtues
 * @param[in]  max_count Maximum number of ids that can be
 *                       written into the list buffer.
 * @param[out] id_list   Buffer for to the list of virtue ids.
 *                       Can be NULL.
 * @param[out] id_count  Number of virtue identifiers in the list
 *                       before possible truncation due to the
 *                       max_count. Can be NULL.
 *
 * @return EOK If the operation was successfully completed
 *
 */
int nic_wol_virtue_list(async_sess_t *dev_sess, nic_wv_type_t type,
    size_t max_count, nic_wv_id_t *id_list, size_t *id_count)
{
	if (id_list == NULL)
		max_count = 0;
	
	async_exch_t *exch = async_exchange_begin(dev_sess);
	
	sysarg_t count;
	int rc = async_req_3_1(exch, DEV_IFACE_ID(NIC_DEV_IFACE),
	    NIC_WOL_VIRTUE_LIST, (sysarg_t) type, max_count, &count);
	
	if (id_count)
		*id_count = (size_t) count;
	
	if ((rc != EOK) || (!max_count)) {
		async_exchange_end(exch);
		return rc;
	}
	
	rc = async_data_read_start(exch, id_list,
	    max_count * sizeof(nic_wv_id_t));
	
	async_exchange_end(exch);
	return rc;
}
Esempio n. 2
0
/** Send formatted message to the logger service.
 *
 * @param session Initialized IPC session with the logger.
 * @param log Log to use.
 * @param level Verbosity level of the message.
 * @param message The actual message.
 * @return Error code of the conversion or EOK on success.
 */
static int logger_message(async_sess_t *session, log_t log, log_level_t level, char *message)
{
	async_exch_t *exchange = async_exchange_begin(session);
	if (exchange == NULL) {
		return ENOMEM;
	}
	if (log == LOG_DEFAULT)
		log = default_log_id;

	// FIXME: remove when all USB drivers use libc logging explicitly
	str_rtrim(message, '\n');

	aid_t reg_msg = async_send_2(exchange, LOGGER_WRITER_MESSAGE,
	    log, level, NULL);
	int rc = async_data_write_start(exchange, message, str_size(message));
	sysarg_t reg_msg_rc;
	async_wait_for(reg_msg, &reg_msg_rc);

	async_exchange_end(exchange);

	/*
	 * Getting ENAK means no-one wants our message. That is not an
	 * error at all.
	 */
	if (rc == ENAK)
		rc = EOK;

	if (rc != EOK) {
		return rc;
	}

	return reg_msg_rc;
}
Esempio n. 3
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/** Set current working directory for the loaded task.
 *
 * Sets the current working directory for the loaded task.
 *
 * @param ldr  Loader connection structure.
 *
 * @return Zero on success or negative error code.
 *
 */
int loader_set_cwd(loader_t *ldr)
{
	char *cwd = (char *) malloc(MAX_PATH_LEN + 1);
	if (!cwd)
		return ENOMEM;
	
	if (!getcwd(cwd, MAX_PATH_LEN + 1))
		str_cpy(cwd, MAX_PATH_LEN + 1, "/");
	
	size_t len = str_length(cwd);
	
	async_exch_t *exch = async_exchange_begin(ldr->sess);
	
	ipc_call_t answer;
	aid_t req = async_send_0(exch, LOADER_SET_CWD, &answer);
	sysarg_t rc = async_data_write_start(exch, cwd, len);
	
	async_exchange_end(exch);
	free(cwd);
	
	if (rc != EOK) {
		async_forget(req);
		return (int) rc;
	}
	
	async_wait_for(req, &rc);
	return (int) rc;
}
Esempio n. 4
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/** Set pathname of the program to load.
 *
 * Sets the name of the program file to load. The name can be relative
 * to the current working directory (it will be absolutized before
 * sending to the loader).
 *
 * @param ldr  Loader connection structure.
 * @param path Pathname of the program file.
 *
 * @return Zero on success or negative error code.
 *
 */
int loader_set_pathname(loader_t *ldr, const char *path)
{
	size_t pa_len;
	char *pa = absolutize(path, &pa_len);
	if (!pa)
		return ENOMEM;
	
	/* Send program pathname */
	async_exch_t *exch = async_exchange_begin(ldr->sess);
	
	ipc_call_t answer;
	aid_t req = async_send_0(exch, LOADER_SET_PATHNAME, &answer);
	sysarg_t rc = async_data_write_start(exch, (void *) pa, pa_len);
	
	async_exchange_end(exch);
	free(pa);
	
	if (rc != EOK) {
		async_forget(req);
		return (int) rc;
	}
	
	async_wait_for(req, &rc);
	return (int) rc;
}
Esempio n. 5
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/** Connect the device to the virtual host controller.
 *
 * @param dev The virtual device to be (virtually) plugged in.
 * @param vhc_path Devman path to the virtual host controller.
 * @return Error code.
 */
int usbvirt_device_plug(usbvirt_device_t *dev, const char *vhc_path)
{
	if (DEV != NULL)
		return ELIMIT;
	
	devman_handle_t handle;
	int rc = devman_fun_get_handle(vhc_path, &handle, 0);
	if (rc != EOK)
		return rc;
	
	async_sess_t *hcd_sess =
	    devman_device_connect(handle, 0);
	if (!hcd_sess)
		return ENOMEM;
	
	DEV = dev;
	dev->vhc_sess = hcd_sess;
	
	async_exch_t *exch = async_exchange_begin(hcd_sess);
	
	port_id_t port;
	rc = async_create_callback_port(exch, INTERFACE_USBVIRT_CB, 0, 0,
	    callback_connection, NULL, &port);
	
	async_exchange_end(exch);
	
	if (rc != EOK)
		DEV = NULL;
	
	return rc;
}
Esempio n. 6
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/** Get information about the next received message from UDP service.
 *
 * @param udp  UDP client
 * @param rmsg Place to store message information
 *
 * @return EOK on success or negative error code
 */
static int udp_rmsg_info(udp_t *udp, udp_rmsg_t *rmsg)
{
	async_exch_t *exch;
	inet_ep_t ep;
	ipc_call_t answer;

	exch = async_exchange_begin(udp->sess);
	aid_t req = async_send_0(exch, UDP_RMSG_INFO, &answer);
	int rc = async_data_read_start(exch, &ep, sizeof(inet_ep_t));
	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return rc;
	}

	sysarg_t retval;
	async_wait_for(req, &retval);
	if (retval != EOK)
		return retval;

	rmsg->udp = udp;
	rmsg->assoc_id = IPC_GET_ARG1(answer);
	rmsg->size = IPC_GET_ARG2(answer);
	rmsg->remote_ep = ep;
	return EOK;
}
Esempio n. 7
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/** Send message via UDP association.
 *
 * @param assoc Association
 * @param dest	Destination endpoint or @c NULL to use association's remote ep.
 * @param data	Message data
 * @param bytes Message size in bytes
 *
 * @return EOK on success or negative error code
 */
int udp_assoc_send_msg(udp_assoc_t *assoc, inet_ep_t *dest, void *data,
    size_t bytes)
{
	async_exch_t *exch;

	exch = async_exchange_begin(assoc->udp->sess);
	aid_t req = async_send_1(exch, UDP_ASSOC_SEND_MSG, assoc->id, NULL);

	sysarg_t rc = async_data_write_start(exch, (void *)dest,
	    sizeof(inet_ep_t));
	if (rc != EOK) {
		async_exchange_end(exch);
		async_forget(req);
		return rc;
	}

	rc = async_data_write_start(exch, data, bytes);
	if (rc != EOK) {
		async_forget(req);
		return rc;
	}

	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return rc;
	}

	async_wait_for(req, &rc);
	return rc;
}
Esempio n. 8
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/** Set preset files for the program.
 *
 * Sets the vector of preset files to be passed to the loaded
 * program. By convention, the first three files represent stdin,
 * stdout and stderr respectively.
 *
 * @param ldr   Loader connection structure.
 * @param files NULL-terminated array of pointers to files.
 *
 * @return Zero on success or negative error code.
 *
 */
int loader_set_files(loader_t *ldr, int * const files[])
{
	/* Send serialized files to the loader */
	async_exch_t *exch = async_exchange_begin(ldr->sess);
	async_exch_t *vfs_exch = vfs_exchange_begin();
	
	int i;
	for (i = 0; files[i]; i++);

	ipc_call_t answer;
	aid_t req = async_send_1(exch, LOADER_SET_FILES, i, &answer);

	sysarg_t rc = EOK;
	
	for (i = 0; files[i]; i++) {
		rc = async_state_change_start(exch, VFS_PASS_HANDLE, *files[i],
		    0, vfs_exch); 
		if (rc != EOK)
			break;
	}
	
	vfs_exchange_end(vfs_exch);
	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return (int) rc;
	}
	
	async_wait_for(req, &rc);
	return (int) rc;
}
Esempio n. 9
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static void emit_event(const isdv4_event_t *event)
{
	fibril_mutex_lock(&client_mutex);
	async_sess_t *sess = client_sess;
	fibril_mutex_unlock(&client_mutex);
	
	if (!sess) return;
	
	async_exch_t *exch = async_exchange_begin(sess);
	if (exch) {
		unsigned int max_x = state.stylus_max_x;
		unsigned int max_y = state.stylus_max_y;
		if (event->source == TOUCH) {
			max_x = state.touch_max_x;
			max_y = state.touch_max_y;
		}
		async_msg_4(exch, MOUSEEV_ABS_MOVE_EVENT, event->x, event->y,
				    max_x, max_y);
		if (event->type == PRESS || event->type == RELEASE) {
			async_msg_2(exch, MOUSEEV_BUTTON_EVENT, event->button,
				    event->type == PRESS);
		}
	}
	async_exchange_end(exch);
}
Esempio n. 10
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/** Load the frame that issued the wakeup.
 *
 * The NIC can support only matched_type,  only part of the frame
 * can be available or not at all. Sometimes even the type can be
 * uncertain -- in this case the matched_type contains NIC_WV_NONE.
 *
 * Frame_length can be greater than max_length, but at most max_length
 * bytes will be copied into the frame buffer.
 *
 * Note: Only the type of the filter can be detected, not the concrete
 * filter, because the driver is probably not running when the wakeup
 * is issued.
 *
 * @param[in]  dev_sess
 * @param[out] matched_type Type of the filter that issued wakeup.
 * @param[in]  max_length   Size of the buffer
 * @param[out] frame        Buffer for the frame. Can be NULL.
 * @param[out] frame_length Length of the stored frame. Can be NULL.
 *
 * @return EOK If the operation was successfully completed
 *
 */
int nic_wol_load_info(async_sess_t *dev_sess, nic_wv_type_t *matched_type,
    size_t max_length, uint8_t *frame, size_t *frame_length)
{
	assert(matched_type);
	
	sysarg_t _matched_type;
	sysarg_t _frame_length;
	
	if (frame == NULL)
		max_length = 0;
	
	async_exch_t *exch = async_exchange_begin(dev_sess);
	
	int rc = async_req_2_2(exch, DEV_IFACE_ID(NIC_DEV_IFACE),
	    NIC_WOL_LOAD_INFO, max_length, &_matched_type, &_frame_length);
	if (rc != EOK) {
		async_exchange_end(exch);
		return rc;
	}
	
	*matched_type = (nic_wv_type_t) _matched_type;
	if (frame_length)
		*frame_length = (size_t) _frame_length;
	
	if ((max_length != 0) && (_frame_length != 0))
		rc = async_data_read_start(exch, frame, max_length);
	
	async_exchange_end(exch);
	return rc;
}
Esempio n. 11
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int iplink_ev_recv(iplink_srv_t *srv, iplink_srv_sdu_t *sdu)
{
	if (srv->client_sess == NULL)
		return EIO;

	async_exch_t *exch = async_exchange_begin(srv->client_sess);

	ipc_call_t answer;
	aid_t req = async_send_2(exch, IPLINK_EV_RECV, sdu->lsrc.ipv4,
	    sdu->ldest.ipv4, &answer);
	int rc = async_data_write_start(exch, sdu->data, sdu->size);
	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return rc;
	}

	sysarg_t retval;
	async_wait_for(req, &retval);
	if (retval != EOK)
		return retval;

	return EOK;
}
Esempio n. 12
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static int adb_port_init(kbd_dev_t *kdev)
{
	kbd_dev = kdev;
	
	const char *dev = "adb/kbd";
	service_id_t service_id;
	int rc = loc_service_get_id(dev, &service_id, 0);
	if (rc != EOK)
		return rc;
	
	dev_sess = loc_service_connect(EXCHANGE_ATOMIC, service_id, 0);
	if (dev_sess == NULL) {
		printf("%s: Failed to connect to device\n", NAME);
		return ENOENT;
	}
	
	async_exch_t *exch = async_exchange_begin(dev_sess);
	if (exch == NULL) {
		printf("%s: Failed starting exchange with device\n", NAME);
		async_hangup(dev_sess);
		return ENOMEM;
	}
	
	rc = async_connect_to_me(exch, 0, 0, 0, kbd_port_events, NULL);
	async_exchange_end(exch);
	if (rc != EOK) {
		printf("%s: Failed to create callback from device\n", NAME);
		async_hangup(dev_sess);
		return rc;
	}
	
	return EOK;
}
Esempio n. 13
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int vbd_part_create(vbd_t *vbd, service_id_t disk, vbd_part_spec_t *pspec,
    vbd_part_id_t *rpart)
{
	async_exch_t *exch;
	sysarg_t retval;
	ipc_call_t answer;

	exch = async_exchange_begin(vbd->sess);
	aid_t req = async_send_1(exch, VBD_PART_CREATE, disk, &answer);
	int rc = async_data_write_start(exch, pspec, sizeof(vbd_part_spec_t));
	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return EIO;
	}

	async_wait_for(req, &retval);
	if (retval != EOK)
		return EIO;

	*rpart = (vbd_part_id_t)IPC_GET_ARG1(answer);
	return EOK;

}
Esempio n. 14
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/** Get list of IDs into a buffer of fixed size.
 *
 * @param vbd      Virtual Block Device
 * @param method   IPC method
 * @param arg1     First argument
 * @param id_buf   Buffer to store IDs
 * @param buf_size Buffer size
 * @param act_size Place to store actual size of complete data.
 *
 * @return EOK on success or negative error code.
 */
static int vbd_get_ids_once(vbd_t *vbd, sysarg_t method, sysarg_t arg1,
    sysarg_t *id_buf, size_t buf_size, size_t *act_size)
{
	async_exch_t *exch = async_exchange_begin(vbd->sess);

	ipc_call_t answer;
	aid_t req = async_send_1(exch, method, arg1, &answer);
	int rc = async_data_read_start(exch, id_buf, buf_size);

	async_exchange_end(exch);

	if (rc != EOK) {
		async_forget(req);
		return rc;
	}

	sysarg_t retval;
	async_wait_for(req, &retval);

	if (retval != EOK) {
		return retval;
	}

	*act_size = IPC_GET_ARG1(answer);
	return EOK;
}
Esempio n. 15
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/** Default handler for IPC methods not handled by DDF.
 *
 * @param fun     Device function handling the call.
 * @param icallid Call id.
 * @param icall   Call data.
 *
 */
static void default_connection_handler(ddf_fun_t *fun,
    ipc_callid_t icallid, ipc_call_t *icall)
{
	const sysarg_t method = IPC_GET_IMETHOD(*icall);
	xt_kbd_t *kbd = ddf_dev_data_get(ddf_fun_get_dev(fun));

	switch (method) {
	case KBDEV_SET_IND: {
		/*
		 * XT keyboards do not support setting mods,
		 * assume AT keyboard with Scan Code Set 1.
		 */
		const unsigned mods = IPC_GET_ARG1(*icall);
		const uint8_t status = 0 |
		    ((mods & KM_CAPS_LOCK) ? LI_CAPS : 0) |
		    ((mods & KM_NUM_LOCK) ? LI_NUM : 0) |
		    ((mods & KM_SCROLL_LOCK) ? LI_SCROLL : 0);
		uint8_t cmds[] = { KBD_CMD_SET_LEDS, status };
		
		async_exch_t *exch = async_exchange_begin(kbd->parent_sess);
		const ssize_t size = chardev_write(exch, cmds, sizeof(cmds));
		async_exchange_end(exch);
		
		async_answer_0(icallid, size < 0 ? size : EOK);
		break;
	}
	/*
	 * This might be ugly but async_callback_receive_start makes no
	 * difference for incorrect call and malloc failure.
	 */
	case IPC_M_CONNECT_TO_ME: {
		async_sess_t *sess =
		    async_callback_receive_start(EXCHANGE_SERIALIZE, icall);
		
		/* Probably ENOMEM error, try again. */
		if (sess == NULL) {
			ddf_msg(LVL_WARN,
			    "Failed creating callback session");
			async_answer_0(icallid, EAGAIN);
			break;
		}
		
		if (kbd->client_sess == NULL) {
			kbd->client_sess = sess;
			ddf_msg(LVL_DEBUG, "Set client session");
			async_answer_0(icallid, EOK);
		} else {
			ddf_msg(LVL_ERROR, "Client session already set");
			async_answer_0(icallid, ELIMIT);
		}
		
		break;
	}
	default:
		ddf_msg(LVL_ERROR, "Unknown method: %d.", (int)method);
		async_answer_0(icallid, EINVAL);
		break;
	}
}
Esempio n. 16
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int fb_pointer_update(async_sess_t *sess, sysarg_t x, sysarg_t y, bool visible)
{
    async_exch_t *exch = async_exchange_begin(sess);
    int ret = async_req_3_0(exch, FB_POINTER_UPDATE, x, y, visible);
    async_exchange_end(exch);

    return ret;
}
Esempio n. 17
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int fb_claim(async_sess_t *sess)
{
    async_exch_t *exch = async_exchange_begin(sess);
    int ret = async_req_0_0(exch, FB_CLAIM);
    async_exchange_end(exch);

    return ret;
}
Esempio n. 18
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int fb_yield(async_sess_t *sess)
{
    async_exch_t *exch = async_exchange_begin(sess);
    int ret = async_req_0_0(exch, FB_YIELD);
    async_exchange_end(exch);

    return ret;
}
Esempio n. 19
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int fb_get_resolution(async_sess_t *sess, sysarg_t *maxx, sysarg_t *maxy)
{
    async_exch_t *exch = async_exchange_begin(sess);
    int ret = async_req_0_2(exch, FB_GET_RESOLUTION, maxx, maxy);
    async_exchange_end(exch);

    return ret;
}
Esempio n. 20
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static void tcp_sock_notify_aconn(socket_core_t *lsock_core)
{
	log_msg(LVL_DEBUG, "tcp_sock_notify_aconn(%d)", lsock_core->socket_id);
	async_exch_t *exch = async_exchange_begin(lsock_core->sess);
	async_msg_5(exch, NET_SOCKET_ACCEPTED, (sysarg_t)lsock_core->socket_id,
	    TCP_SOCK_FRAGMENT_SIZE, 0, 0, 0);
	async_exchange_end(exch);
}
Esempio n. 21
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static void tcp_sock_notify_data(socket_core_t *sock_core)
{
	log_msg(LVL_DEBUG, "tcp_sock_notify_data(%d)", sock_core->socket_id);
	async_exch_t *exch = async_exchange_begin(sock_core->sess);
	async_msg_5(exch, NET_SOCKET_RECEIVED, (sysarg_t)sock_core->socket_id,
	    TCP_SOCK_FRAGMENT_SIZE, 0, 0, 1);
	async_exchange_end(exch);
}
Esempio n. 22
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/** Request the driver to poll the NIC.
 *
 * @param[in] dev_sess
 *
 * @return EOK If the operation was successfully completed
 *
 */
int nic_poll_now(async_sess_t *dev_sess)
{
	async_exch_t *exch = async_exchange_begin(dev_sess);
	int rc = async_req_1_0(exch, DEV_IFACE_ID(NIC_DEV_IFACE), NIC_POLL_NOW);
	async_exchange_end(exch);
	
	return rc;
}
Esempio n. 23
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int win_grab(async_sess_t *sess, sysarg_t pos_id, sysarg_t grab_flags)
{
	async_exch_t *exch = async_exchange_begin(sess);
	int ret = async_req_2_0(exch, WINDOW_GRAB, pos_id, grab_flags);
	async_exchange_end(exch);

	return ret;
}
Esempio n. 24
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int graph_dev_connect(async_sess_t *sess)
{
	async_exch_t *exch = async_exchange_begin(sess);
	int ret = async_req_1_0(exch, DEV_IFACE_ID(GRAPH_DEV_IFACE), GRAPH_DEV_CONNECT);
	async_exchange_end(exch);

	return ret;
}
Esempio n. 25
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/** Instruct loader to load the program.
 *
 * If this function succeeds, the program has been successfully loaded
 * and is ready to be executed.
 *
 * @param ldr Loader connection structure.
 *
 * @return Zero on success or negative error code.
 *
 */
int loader_load_program(loader_t *ldr)
{
	async_exch_t *exch = async_exchange_begin(ldr->sess);
	int rc = async_req_0_0(exch, LOADER_LOAD);
	async_exchange_end(exch);
	
	return rc;
}
Esempio n. 26
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int win_close_request(async_sess_t *sess)
{
	async_exch_t *exch = async_exchange_begin(sess);
	int ret = async_req_0_0(exch, WINDOW_CLOSE_REQUEST);
	async_exchange_end(exch);

	return ret;
}
Esempio n. 27
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static int inet_set_proto(uint8_t protocol)
{
	async_exch_t *exch = async_exchange_begin(inet_sess);
	int rc = async_req_1_0(exch, INET_SET_PROTO, protocol);
	async_exchange_end(exch);
	
	return rc;
}
Esempio n. 28
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/** Connect to specified network.
 *
 * @param[in] dev_sess   Device session.
 * @param[in] ssid_start Network SSID prefix.
 * @param[in] password   Network password (pass empty string if not needed).
 *
 * @return EOK If the operation was successfully completed,
 *         negative error code otherwise.
 *
 */
int ieee80211_connect(async_sess_t *dev_sess, char *ssid_start, char *password)
{
	assert(ssid_start);
	
	sysarg_t rc_orig;
	
	async_exch_t *exch = async_exchange_begin(dev_sess);
	
	aid_t aid = async_send_1(exch, DEV_IFACE_ID(IEEE80211_DEV_IFACE),
	    IEEE80211_CONNECT, NULL);
	
	sysarg_t rc = async_data_write_start(exch, ssid_start,
	    str_size(ssid_start) + 1);
	if (rc != EOK) {
		async_exchange_end(exch);
		async_wait_for(aid, &rc_orig);
		
		if (rc_orig == EOK)
			return (int) rc;
		
		return (int) rc_orig;
	}
	
	// FIXME: Typecasting string literal
	if (password == NULL)
		password = (char *) "";
	
	rc = async_data_write_start(exch, password, str_size(password) + 1);
	if (rc != EOK) {
		async_exchange_end(exch);
		async_wait_for(aid, &rc_orig);
		
		if (rc_orig == EOK)
			return (int) rc;
		
		return (int) rc_orig;
	}
	
	async_exchange_end(exch);
	
	async_wait_for(aid, &rc);
	if (rc != EOK)
		return rc;
	
	/* Send DHCP discover. */
	nic_address_t wifi_mac;
	rc = nic_get_address(dev_sess, &wifi_mac);
	if (rc != EOK)
		return rc;
	
	sysarg_t link_id = get_link_id(wifi_mac.address);
	if (link_id == ((sysarg_t) -1))
		return EINVAL;
	
	rc = dhcp_discover(link_id);
	
	return (int) rc;
}
Esempio n. 29
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/** Start an async exchange on the loc session (blocking).
 *
 * @param iface Location service interface to choose
 *
 * @return New exchange.
 *
 */
async_exch_t *loc_exchange_begin_blocking(loc_interface_t iface)
{
	switch (iface) {
	case LOC_PORT_SUPPLIER:
		fibril_mutex_lock(&loc_supp_block_mutex);
		
		while (loc_supp_block_sess == NULL) {
			clone_session(&loc_supplier_mutex, loc_supplier_sess,
			    &loc_supp_block_sess);
			
			if (loc_supp_block_sess == NULL)
				loc_supp_block_sess =
				    service_connect_blocking(EXCHANGE_SERIALIZE,
				    SERVICE_LOC, LOC_PORT_SUPPLIER, 0);
		}
		
		fibril_mutex_unlock(&loc_supp_block_mutex);
		
		clone_session(&loc_supplier_mutex, loc_supp_block_sess,
		    &loc_supplier_sess);
		
		return async_exchange_begin(loc_supp_block_sess);
	case LOC_PORT_CONSUMER:
		fibril_mutex_lock(&loc_cons_block_mutex);
		
		while (loc_cons_block_sess == NULL) {
			clone_session(&loc_consumer_mutex, loc_consumer_sess,
			    &loc_cons_block_sess);
			
			if (loc_cons_block_sess == NULL)
				loc_cons_block_sess =
				    service_connect_blocking(EXCHANGE_SERIALIZE,
				    SERVICE_LOC, LOC_PORT_CONSUMER, 0);
		}
		
		fibril_mutex_unlock(&loc_cons_block_mutex);
		
		clone_session(&loc_consumer_mutex, loc_cons_block_sess,
		    &loc_consumer_sess);
		
		return async_exchange_begin(loc_cons_block_sess);
	default:
		return NULL;
	}
}
Esempio n. 30
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int win_damage(async_sess_t *sess,
    sysarg_t x, sysarg_t y, sysarg_t width, sysarg_t height)
{
	async_exch_t *exch = async_exchange_begin(sess);
	int ret = async_req_4_0(exch, WINDOW_DAMAGE, x, y, width, height);
	async_exchange_end(exch);

	return ret;
}