C++ LOG_DBG函数代码示例

/* This function is executed in the interrupt context */
static void dma_rx_callback(void *arg, u32_t channel, int status)
{
	struct device *dev = get_dev_from_rx_dma_channel(channel);
	const struct i2s_stm32_cfg *cfg = DEV_CFG(dev);
	struct i2s_stm32_data *const dev_data = DEV_DATA(dev);
	struct stream *stream = &dev_data->rx;
	void *mblk_tmp;
	int ret;

	if (status != 0) {
		ret = -EIO;
		stream->state = I2S_STATE_ERROR;
		goto rx_disable;
	}

	__ASSERT_NO_MSG(stream->mem_block != NULL);

	/* Stop reception if there was an error */
	if (stream->state == I2S_STATE_ERROR) {
		goto rx_disable;
	}

	mblk_tmp = stream->mem_block;

	/* Prepare to receive the next data block */
	ret = k_mem_slab_alloc(stream->cfg.mem_slab, &stream->mem_block,
			       K_NO_WAIT);
	if (ret < 0) {
		stream->state = I2S_STATE_ERROR;
		goto rx_disable;
	}

	ret = reload_dma(dev_data->dev_dma, stream->dma_channel,
			&stream->dma_cfg,
			(void *)LL_SPI_DMA_GetRegAddr(cfg->i2s),
			stream->mem_block,
			stream->cfg.block_size);
	if (ret < 0) {
		LOG_DBG("Failed to start RX DMA transfer: %d", ret);
		goto rx_disable;
	}

	/* Assure cache coherency after DMA write operation */
	DCACHE_INVALIDATE(mblk_tmp, stream->cfg.block_size);

	/* All block data received */
	ret = queue_put(&stream->mem_block_queue, mblk_tmp,
			stream->cfg.block_size);
	if (ret < 0) {
		stream->state = I2S_STATE_ERROR;
		goto rx_disable;
	}
	k_sem_give(&stream->sem);

	/* Stop reception if we were requested */
	if (stream->state == I2S_STATE_STOPPING) {
		stream->state = I2S_STATE_READY;
		goto rx_disable;
	}

	return;

rx_disable:
	rx_stream_disable(stream, dev);
}

bool Emulator_Implementation_InitSettings()
{
	LOG_DBG("Emulator_Implementation_InitSettings()");

	memset((&Settings), 0, (sizeof(Settings)));

	currentconfig.Clear();

	#ifdef SYS_CONFIG_FILE
		try_load_config_file(SYS_CONFIG_FILE, currentconfig);
	#endif

	//PS3 - General settings	
	if (currentconfig.Exists("PS3General::KeepAspect"))
	{
		Settings.PS3KeepAspect		=	currentconfig.GetBool("PS3General::KeepAspect");
	}
	else
	{
		Settings.PS3KeepAspect		=	true;
	}

	if (currentconfig.Exists("PS3General::Smooth"))
	{
		Settings.PS3Smooth		=	currentconfig.GetBool("PS3General::Smooth");
	}
	else
	{
		Settings.PS3Smooth		=	false;
	}

	if (currentconfig.Exists("PS3General::OverscanEnabled"))
	{
		Settings.PS3OverscanEnabled	= currentconfig.GetBool("PS3General::OverscanEnabled");
	}
	else
	{
		Settings.PS3OverscanEnabled	= false;
	}
	if (currentconfig.Exists("PS3General::OverscanAmount"))
	{
		Settings.PS3OverscanAmount	= currentconfig.GetInt("PS3General::OverscanAmount");
	}
	else
	{
		Settings.PS3OverscanAmount	= 0;
	}

	if (currentconfig.Exists("FCEU::Controlstyle"))
	{
		Settings.FCEUControlstyle = currentconfig.GetInt("FCEU::Controlstyle");
		control_style = (ControlStyle)(((int)Settings.FCEUControlstyle));
	}
	else
	{
		Settings.FCEUControlstyle = CONTROL_STYLE_ORIGINAL;
		control_style = CONTROL_STYLE_ORIGINAL;
	}

	if (currentconfig.Exists("FCEU::DisableSpriteLimitation"))
	{
		Settings.FCEUDisableSpriteLimitation = currentconfig.GetBool("FCEU::DisableSpriteLimitation");
		FCEUI_DisableSpriteLimitation(Settings.FCEUDisableSpriteLimitation);
	}
	else
	{
		Settings.FCEUDisableSpriteLimitation = false;
	}

	if (currentconfig.Exists("PS3General::PS3CurrentShader"))
	{
		Settings.PS3CurrentShader.assign(currentconfig.GetString("PS3General::PS3CurrentShader"));
	}
	else
	{
		Settings.PS3CurrentShader.assign(DEFAULT_SHADER_FILE);
	}

	if (currentconfig.Exists("PS3General::PS3CurrentResolution"))
	{
		Settings.PS3CurrentResolution = currentconfig.GetInt("PS3General::PS3CurrentResolution");
	}
	else
	{
		Settings.PS3CurrentResolution = NULL;
	}

	if (currentconfig.Exists("FCEU::GameGenie"))
	{
		Settings.FCEUGameGenie = currentconfig.GetBool("FCEU::GameGenie");
		FCEUI_SetGameGenie(Settings.FCEUGameGenie);
	}
	else
	{
		Settings.FCEUGameGenie = false;
	}
	FCEUI_SetGameGenie(Settings.FCEUGameGenie);
	if (currentconfig.Exists("PS3General::PS3PALTemporalMode60Hz"))
	{
		Settings.PS3PALTemporalMode60Hz = currentconfig.GetBool("PS3General::PS3PALTemporalMode60Hz");
//.........这里部分代码省略.........

static int eswifi_spi_request(struct eswifi_dev *eswifi, char *cmd, size_t clen,
			      char *rsp, size_t rlen)
{
	struct eswifi_spi_data *spi = eswifi->bus_data;
	unsigned int offset = 0, to_read = SPI_READ_CHUNK_SIZE;
	char tmp[2];
	int err;

	LOG_DBG("cmd=%p (%u byte), rsp=%p (%u byte)", cmd, clen, rsp, rlen);

	/*
	 * CMD/DATA protocol:
	 * 1. Module raises data-ready when ready for **command phase**
	 * 2. Host announces command start by lowering chip-select (csn)
	 * 3. Host write the command (possibly several spi transfers)
	 * 4. Host announces end of command by raising chip-select
	 * 5. Module lowers data-ready signal
	 * 6. Module raises data-ready to signal start of the **data phase**
	 * 7. Host lowers chip-select
	 * 8. Host fetch data as long as data-ready pin is up
	 * 9. Module lowers data-ready to signal the end of the data Phase
	 * 10. Host raises chip-select
	 *
	 * Note:
	 * All commands to the eS-WiFi module must be post-padded with
	 * 0x0A (Line Feed) to an even number of bytes.
	 * All data from eS-WiFi module are post-padded with 0x15(NAK) to an
	 * even number of bytes.
	 */

	if (!cmd) {
		goto data;
	}

	/* CMD/DATA READY signals the Command Phase */
	err = eswifi_spi_wait_cmddata_ready(spi);
	if (err) {
		LOG_ERR("CMD ready timeout\n");
		return err;
	}

	if (clen % 2) { /* Add post-padding if necessary */
		/* cmd is a string so cmd[clen] is 0x00 */
		cmd[clen] = 0x0a;
		clen++;
	}

	eswifi_spi_write(eswifi, cmd, clen);

	/* Our device is flagged with SPI_HOLD_ON_CS|SPI_LOCK_ON, release */
	spi_release(spi->spi_dev, &spi->spi_cfg);

data:
	/* CMD/DATA READY signals the Data Phase */
	err = eswifi_spi_wait_cmddata_ready(spi);
	if (err) {
		LOG_ERR("DATA ready timeout\n");
		return err;
	}

	while (eswifi_spi_cmddata_ready(spi) && to_read) {
		to_read = MIN(rlen - offset, to_read);
		memset(rsp + offset, 0, to_read);
		eswifi_spi_read(eswifi, rsp + offset, to_read);
		offset += to_read;
		k_yield();
	}

	/* Flush remaining data if receiving buffer not large enough */
	while (eswifi_spi_cmddata_ready(spi)) {
		eswifi_spi_read(eswifi, tmp, 2);
		k_sleep(1);
	}

	/* Our device is flagged with SPI_HOLD_ON_CS|SPI_LOCK_ON, release */
	spi_release(spi->spi_dev, &spi->spi_cfg);

	LOG_DBG("success");

	return offset;
}

int remote_ctrlmsg_recv(struct hostctrl *hc, struct ctrlmsg *cm,
                        struct sockaddr *from, socklen_t from_len)
{
    struct in_addr *fromip = NULL;
    int ret = 0;
     
    if (from) {
        if (from->sa_family == AF_INET)
            fromip = &((struct sockaddr_in *)from)->sin_addr;
        else if (from->sa_family == AF_SERVAL && 
                 from_len > sizeof(struct sockaddr_in)) {
            channel_addr_t *addr = (channel_addr_t *)from;
            
            if (addr->sv_in.in.sin_family == AF_INET) {
                fromip = &addr->sv_in.in.sin_addr;
            }
        }
    }
    
    switch (cm->type) {
    case CTRLMSG_TYPE_REGISTER: {
        struct ctrlmsg_register *cmr = (struct ctrlmsg_register *)cm;

        if (!fromip)
            break;
        
        ret = hc->cbs->service_registration(hc, &cmr->srvid, 
                                            cmr->srvid_flags, 
                                            cmr->srvid_prefix_bits, 
                                            fromip, 
                                            cmr->flags & REG_FLAG_REREGISTER ? 
                                            &cmr->addr : NULL);
        break;
    }
    case CTRLMSG_TYPE_UNREGISTER: {
        struct ctrlmsg_register *cmr = (struct ctrlmsg_register *)cm;

        if (!fromip)
            break;

        ret = hc->cbs->service_unregistration(hc, &cmr->srvid, 
                                              cmr->srvid_flags, 
                                              cmr->srvid_prefix_bits, 
                                              fromip);
        break;
    }
    case CTRLMSG_TYPE_RESOLVE:
        break;
    case CTRLMSG_TYPE_SERVICE_STAT:
        break;
    case CTRLMSG_TYPE_ADD_SERVICE:
        break;
    case CTRLMSG_TYPE_DEL_SERVICE:
        break;
	default:
		LOG_DBG("Received message type %u\n", cm->type);
		break;
	}
        
    return ret;
}

static void i2c_dw_isr(void *arg)
{
	struct device *port = (struct device *)arg;
	struct i2c_dw_dev_config * const dw = port->driver_data;
	union ic_interrupt_register intr_stat;
	u32_t value;
	int ret = 0;

	volatile struct i2c_dw_registers * const regs =
		(struct i2c_dw_registers *)dw->base_address;

	/* Cache ic_intr_stat for processing, so there is no need to read
	 * the register multiple times.
	 */
	intr_stat.raw = regs->ic_intr_stat.raw;

#if CONFIG_SHARED_IRQ
	/* If using with shared IRQ, this function will be called
	 * by the shared IRQ driver. So check here if the interrupt
	 * is coming from the I2C controller (or somewhere else).
	 */
	if (!intr_stat.raw) {
		return;
	}
#endif

	/*
	 * Causes of an interrupt:
	 *   - STOP condition is detected
	 *   - Transfer is aborted
	 *   - Transmit FIFO is empty
	 *   - Transmit FIFO has overflowed
	 *   - Receive FIFO is full
	 *   - Receive FIFO has overflowed
	 *   - Received FIFO has underrun
	 *   - Transmit data is required (tx_req)
	 *   - Receive data is available (rx_avail)
	 */

	LOG_DBG("I2C: interrupt received");

	/* Check if we are configured as a master device */
	if (regs->ic_con.bits.master_mode) {
		/* Bail early if there is any error. */
		if ((DW_INTR_STAT_TX_ABRT | DW_INTR_STAT_TX_OVER |
		     DW_INTR_STAT_RX_OVER | DW_INTR_STAT_RX_UNDER) &
		    intr_stat.raw) {
			dw->state = I2C_DW_CMD_ERROR;
			goto done;
		}

		/* Check if the RX FIFO reached threshold */
		if (intr_stat.bits.rx_full) {
			_i2c_dw_data_read(port);
		}

		/* Check if the TX FIFO is ready for commands.
		 * TX FIFO also serves as command queue where read requests
		 * are written to TX FIFO.
		 */
		if (intr_stat.bits.tx_empty) {
			if ((dw->xfr_flags & I2C_MSG_RW_MASK)
			    == I2C_MSG_WRITE) {
				ret = _i2c_dw_data_send(port);
			} else {
				_i2c_dw_data_ask(port);
			}

			/* If STOP is not expected, finish processing this
			 * message if there is nothing left to do anymore.
			 */
			if (((dw->xfr_len == 0)
			     && !(dw->xfr_flags & I2C_MSG_STOP))
			    || (ret != 0)) {
				goto done;
			}
		}
	}

	/* STOP detected: finish processing this message */
	if (intr_stat.bits.stop_det) {
		value = regs->ic_clr_stop_det;
		goto done;
	}

	return;

done:
	_i2c_dw_transfer_complete(port);
}

void WebInterface::worker() {
	/* Backup the stdio streambufs */
	std::streambuf * cin_streambuf  = std::cin.rdbuf();
	std::streambuf * cout_streambuf = std::cout.rdbuf();
	std::streambuf * cerr_streambuf = std::cerr.rdbuf();

	const std::string kw_title(KW_TITLE);
	const std::string kw_head(KW_HEAD);
	const std::string kw_menu(KW_MENU);
	const std::string kw_content(KW_CONTENT);

	FCGX_Request request;

	/* Initialize FastCGI library and request */
	FCGX_Init();
	FCGX_InitRequest(&request, 0, FCGI_FAIL_ACCEPT_ON_INTR);

	LOG_DBG("FastCGI initialization success!");

	while (!stop_flag_) {
		if(FCGX_Accept_r(&request) >= 0) {

			fcgi_streambuf cin_fcgi_streambuf(request.in);
			fcgi_streambuf cout_fcgi_streambuf(request.out);
			fcgi_streambuf cerr_fcgi_streambuf(request.err);

			std::cin.rdbuf(&cin_fcgi_streambuf);
			std::cout.rdbuf(&cout_fcgi_streambuf);
			std::cerr.rdbuf(&cerr_fcgi_streambuf);

			/* getting the uri from the request */
			std::string uri;
			const char *uri_param = FCGX_GetParam("REQUEST_URI", request.envp);
			if(!uri_param) {
				LOG_ERR("Failed to retrieve the request URI environment value!");
				uri = URI_PAGE_ERROR;
			} else {
				uri = uri_param;
			}

			LOG_DBG("Request received: %s", uri.c_str());

			/* Check if URI is a file in the home folder and get the mime of
			 * that file (by extension) */
			std::string path;
			std::string mime = if_file_get_mime(uri, &path);

			if (!mime.empty()) {
				/* This is a file we need to serve */
				StringPtr file_data = Utils::read_file(path);
				std::cout << "Content-type: " << mime << "\r\n\r\n";
				std::cout << *(file_data);

				file_data.reset();
			} else {
				/* Parse the URI */
				std::map<std::string, std::string> uri_data = parseURI(uri);

				LOG_DBG("URI Parsed, page requested: %s",
						uri_data[URI_PAGE].c_str());

				/* Generate and serve the page depending on the URI */
				StringPtr page;
				std::string content_type = "text/html";

				/* Main page requested */
				if (uri_data[URI_PAGE].compare(URI_PAGE_MAIN) == 0) {
					bool success = false;

					/* Check if a command was sent from the client. */
					if (uri_data.find(URI_PAGE_COMMAND) != uri_data.end()) {
						success = add_command(uri_data[URI_PAGE_COMMAND]);
					}

					std::string s;
					/* Check if the request was sent from javascript or pure HTML */
					if(uri_data.find(URI_PAGE_SOURCE) != uri_data.end()) {
						LOG_DBG("This query's source IS javascript: %s, Source: %s",
								uri.c_str(), (uri_data[URI_PAGE_SOURCE]).c_str());
						content_type = "application/json";
						page = generate_command_json(success);
					} else {
						LOG_DBG("This query's source IS NOT javascript: %s", uri.c_str());
						/* Just generate a standard main page */
						page = generate_main_page();
					}
				/* Log page requested */
				} else if (uri_data[URI_PAGE].compare(URI_PAGE_LOG) == 0) {
					page = generate_log_page();

				/* Status page requested */
				} else if (uri_data[URI_PAGE].compare(URI_PAGE_STATUS) == 0) {
					page = generate_status_page();

				/* Console lines JSON page requested */
				} else if (uri_data[URI_PAGE].compare(URI_PAGE_CL) == 0) {
					if (uri_data.find(URI_PAGE_BEFORE) != uri_data.end()) {
						content_type = "application/json";
						page = generate_cljson_before(
								uri_data[URI_PAGE_BEFORE]);
//.........这里部分代码省略.........

//.........这里部分代码省略.........

        if (error == 0)
        {
            uid = pw_uid;
            error = g_setuid(uid);
        }

        g_mk_temp_dir(0);

        if (error == 0)
        {
            g_clearenv();
            g_setenv("SHELL", pw_shell, 1);
            g_setenv("PATH", "/sbin:/bin:/usr/bin:/usr/local/bin", 1);
            g_setenv("USER", username, 1);
            g_sprintf(text, "%d", uid);
            g_setenv("UID", text, 1);
            g_setenv("HOME", pw_dir, 1);
            g_set_current_dir(pw_dir);
            g_sprintf(text, ":%d.0", display);
            g_setenv("DISPLAY", text, 1);
            g_setenv("XRDP_SESSION", "1", 1);
            if ((env_names != 0) && (env_values != 0) &&
                    (env_names->count == env_values->count))
            {
                for (index = 0; index < env_names->count; index++)
                {
                    name = (char *) list_get_item(env_names, index),
                    value = (char *) list_get_item(env_values, index),
                    g_setenv(name, value, 1);
                }
            }

            if (passwd_file != 0)
            {
                if (0 == g_cfg->auth_file_path)
                {
                    /* if no auth_file_path is set, then we go for
                     $HOME/.vnc/sesman_username_passwd:DISPLAY */
                    if (!g_directory_exist(".vnc"))
                    {
                        if (g_mkdir(".vnc") < 0)
                        {
                            log_message(LOG_LEVEL_ERROR,
                                        "Error creating .vnc directory: %s",
                                        g_get_strerror());
                        }
                    }

                    len = g_snprintf(NULL, 0, "%s/.vnc/sesman_%s_passwd:%d",
                                     pw_dir, username, display);

                    *passwd_file = (char *) g_malloc(len + 1, 1);
                    if (*passwd_file != NULL)
                    {
                        /* Try legacy name first, remove if found */
                        g_sprintf(*passwd_file, "%s/.vnc/sesman_%s_passwd",
                                  pw_dir, username);
                        if (g_file_exist(*passwd_file))
                        {
                            log_message(LOG_LEVEL_WARNING, "Removing insecure "
                                        "password file %s", *passwd_file);
                            g_file_delete(*passwd_file);
                        }

                        g_sprintf(*passwd_file, "%s/.vnc/sesman_%s_passwd:%d",
                                  pw_dir, username, display);
                    }
                }
                else
                {
                    /* we use auth_file_path as requested */
                    len = g_snprintf(NULL, 0, g_cfg->auth_file_path, username);

                    *passwd_file = (char *) g_malloc(len + 1, 1);
                    if (*passwd_file != NULL)
                    {
                        g_sprintf(*passwd_file, g_cfg->auth_file_path, username);
                    }
                }

                if (*passwd_file != NULL)
                {
                    LOG_DBG("pass file: %s", *passwd_file);
                }
            }

            g_free(pw_dir);
            g_free(pw_shell);
        }
    }
    else
    {
        log_message(LOG_LEVEL_ERROR,
                    "error getting user info for user %s",
                    username);
    }

    return error;
}

static int
vc_watchdog_thread_func(void *v)
{
	while (1) {
		long rc;
		unsigned long msg = WDOG_PING_MSG;
		VCHIQ_ELEMENT_T elem = {
			.data = (void *)&msg,
			.size = sizeof(msg)
		};
		int time_remaining =
			msecs_to_jiffies(WATCHDOG_PING_RATE_MS);

		LOG_DBG("%s: waiting on disable blocker...", __func__);
		if (wait_for_completion_interruptible(
				&vc_wdog_state->wdog_disable_blocker) != 0) {
			flush_signals(current);
			continue;
		}

		LOG_DBG("%s: Waiting for VC to be awake...", __func__);
		/* Ensure we only ping videocore when it's awake. Call use
		 * service in a mode which will not initiate a wakeup */
		vchiq_use_service_no_resume(vc_wdog_state->service_handle);

		if (!atomic_read(&vc_wdog_state->wdog_enabled)) {
			vchiq_release_service(vc_wdog_state->service_handle);
			LOG_DBG("%s: VC watchdog disabled", __func__);
			continue;
		}

		if (mutex_lock_interruptible(&vc_wdog_state->wdog_ping_mutex)
				!= 0) {
			vchiq_release_service(vc_wdog_state->service_handle);
			LOG_DBG("%s: Interrupted waiting for ping", __func__);
			continue;
		}

		LOG_DBG("%s: Pinging videocore", __func__);
		/* ping vc... */
		vchiq_queue_message(vc_wdog_state->service_handle, &elem, 1);

		LOG_DBG("%s: Waiting for ping response", __func__);
		/* ...and wait for the response with a timeout */
		rc = wait_for_completion_interruptible_timeout(
			&vc_wdog_state->wdog_ping_response,
			msecs_to_jiffies(VC_PING_RESPONSE_TIMEOUT_MS));

		if (rc == 0) {
			/* Timed out... BANG! */
			vc_wdog_state->failed_pings++;
			LOG_ERR("%s VideoCore Watchdog timed out!! (%d)",
				__func__, vc_wdog_state->failed_pings);
			if (vc_wdog_state->failed_pings >=
						WATCHDOG_NO_RESPONSE_COUNT)
			BUG();
		} else if (rc < 0)
			LOG_ERR("%s: Interrupted waiting for ping", __func__);
		else {
			LOG_DBG("%s: Ping response received", __func__);
			vc_wdog_state->failed_pings = 0;
		}

		mutex_unlock(&vc_wdog_state->wdog_ping_mutex);

		vchiq_release_service(vc_wdog_state->service_handle);

		LOG_DBG("%s: waiting before pinging again...", __func__);
		/* delay before running again */
		do {
			set_current_state(TASK_INTERRUPTIBLE);
			time_remaining = schedule_timeout(time_remaining);
			if (time_remaining) {
				LOG_ERR("%s interrupted", __func__);
				flush_signals(current);
			}
		} while (time_remaining > 0);
	}

	return 0;
}

static void vc_watchdog_connected_init(void)
{
	int ret = 0;
	VCHIQ_SERVICE_PARAMS_T vchiq_params = {
		.fourcc      = VCHIQ_MAKE_FOURCC('W', 'D', 'O', 'G'),
		.callback    = vc_watchdog_vchiq_callback,
		.version     = VC_WDOG_VERSION,
		.version_min = VC_WDOG_VERSION_MIN
	};

	LOG_INFO("%s: start", __func__);

	/* Initialize and create a VCHIQ connection */
	ret = vchiq_initialise(&vc_wdog_state->initialise_instance);
	if (ret != 0) {
		LOG_ERR("%s: failed to initialise VCHIQ instance (ret=%d)",
				__func__, ret);
		ret = -EIO;
//.........这里部分代码省略.........

static int spi_dw_configure(const struct spi_dw_config *info,
			    struct spi_dw_data *spi,
			    const struct spi_config *config)
{
	u32_t ctrlr0 = 0U;

	LOG_DBG("%p (prev %p)", config, spi->ctx.config);

	if (spi_context_configured(&spi->ctx, config)) {
		/* Nothing to do */
		return 0;
	}

	/* Verify if requested op mode is relevant to this controller */
	if (config->operation & SPI_OP_MODE_SLAVE) {
		if (!(info->op_modes & SPI_CTX_RUNTIME_OP_MODE_SLAVE)) {
			LOG_ERR("Slave mode not supported");
			return -ENOTSUP;
		}
	} else {
		if (!(info->op_modes & SPI_CTX_RUNTIME_OP_MODE_MASTER)) {
			LOG_ERR("Master mode not supported");
			return -ENOTSUP;
		}
	}

	if (config->operation & (SPI_TRANSFER_LSB |
				 SPI_LINES_DUAL | SPI_LINES_QUAD)) {
		LOG_ERR("Unsupported configuration");
		return -EINVAL;
	}

	/* Word size */
	ctrlr0 |= DW_SPI_CTRLR0_DFS(SPI_WORD_SIZE_GET(config->operation));

	/* Determine how many bytes are required per-frame */
	spi->dfs = SPI_WS_TO_DFS(SPI_WORD_SIZE_GET(config->operation));

	/* SPI mode */
	if (SPI_MODE_GET(config->operation) & SPI_MODE_CPOL) {
		ctrlr0 |= DW_SPI_CTRLR0_SCPOL;
	}

	if (SPI_MODE_GET(config->operation) & SPI_MODE_CPHA) {
		ctrlr0 |= DW_SPI_CTRLR0_SCPH;
	}

	if (SPI_MODE_GET(config->operation) & SPI_MODE_LOOP) {
		ctrlr0 |= DW_SPI_CTRLR0_SRL;
	}

	/* Installing the configuration */
	write_ctrlr0(ctrlr0, info->regs);

	/* At this point, it's mandatory to set this on the context! */
	spi->ctx.config = config;

	if (!spi_dw_is_slave(spi)) {
		/* Baud rate and Slave select, for master only */
		write_baudr(SPI_DW_CLK_DIVIDER(config->frequency), info->regs);
		write_ser(1 << config->slave, info->regs);
	}

	spi_context_cs_configure(&spi->ctx);

	if (spi_dw_is_slave(spi)) {
		LOG_DBG("Installed slave config %p:"
			    " ws/dfs %u/%u, mode %u/%u/%u",
			    config,
			    SPI_WORD_SIZE_GET(config->operation), spi->dfs,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_CPOL) ? 1 : 0,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_CPHA) ? 1 : 0,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_LOOP) ? 1 : 0);
	} else {
		LOG_DBG("Installed master config %p: freq %uHz (div = %u),"
			    " ws/dfs %u/%u, mode %u/%u/%u, slave %u",
			    config, config->frequency,
			    SPI_DW_CLK_DIVIDER(config->frequency),
			    SPI_WORD_SIZE_GET(config->operation), spi->dfs,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_CPOL) ? 1 : 0,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_CPHA) ? 1 : 0,
			    (SPI_MODE_GET(config->operation) &
			     SPI_MODE_LOOP) ? 1 : 0,
			    config->slave);
	}

	return 0;
}

//.........这里部分代码省略.........
                        rkfree(data);
                        return NULL;
                }

                break;
        case PDU_TYPE_CACK:
                if (serialize_ctrl_seq(instance, data, pci, pci_size) ||
                    serialize_cc_pci(instance, data, pci,
                                     pci_size + CTRL_SEQ_NR)) {
                        rkfree(data);
                        return NULL;
                }

                break;
        default:
                LOG_ERR("Unknown PDU type %02X", pdu_type);
                return NULL;
        }

        buf = buffer_create_with_gfp(flags, data, size);
        if (!buf) {
                rkfree(data);
                return NULL;
        }

        tmp = pdu_ser_create_buffer_with_gfp(flags, buf);
        if (!tmp) {
                rkfree(buf);
                return NULL;
        }

        /* FIXME: this should be moved to specific policy code */
        if (dup_conf != NULL && dup_conf->ttl_policy != NULL){
            if (pdu_ser_head_grow_gfp(flags, tmp, sizeof(u8))) {
                    LOG_ERR("Failed to grow ser PDU");
                    pdu_ser_destroy(tmp);
                    return NULL;
            }

            if (!dup_ttl_set(tmp, pci_ttl(pci))) {
                    LOG_ERR("Could not set TTL");
                    pdu_ser_destroy(tmp);
                    return NULL;
            }

            if (dup_ttl_is_expired(tmp)) {
                    LOG_DBG("TTL is expired, dropping PDU");
                    pdu_ser_destroy(tmp);
                    return NULL;
            }
        }

        /* FIXME: this should be moved to specific policy code */
        if (blkcipher != NULL && dup_conf != NULL
        		&& dup_conf->enable_encryption){
                buf = pdu_ser_buffer(tmp);
                blk_size = crypto_blkcipher_blocksize(blkcipher);
                buffer_size = buffer_length(buf);
                encrypted_size = (buffer_size/blk_size + 1) * blk_size;

                if (pdu_ser_tail_grow_gfp(tmp, encrypted_size - buffer_size)){
                    LOG_ERR("Failed to grow ser PDU");
                    pdu_ser_destroy(tmp);
                    return NULL;
                }

                /* PADDING */
                data = buffer_data_rw(buf);
                for (i=encrypted_size-1; i>buffer_size; i--){
                    data[i] = encrypted_size - buffer_size;
                }

                /* Encrypt */
                if (!dup_encrypt_data(tmp, blkcipher)) {
                	LOG_ERR("Failed to encrypt PDU");
                	pdu_ser_destroy(tmp);
                	return NULL;
                }
        }

        /* FIXME: this should be moved to specific policy code */
        if (dup_conf != NULL && dup_conf->error_check_policy != NULL){
            /* Assuming CRC32 */
            if (pdu_ser_head_grow_gfp(flags, tmp, sizeof(u32))) {
                    LOG_ERR("Failed to grow ser PDU");
                    pdu_ser_destroy(tmp);
                    return NULL;
            }

            if (!dup_chksum_set(tmp)) {
                    LOG_ERR("Failed to add CRC");
                    pdu_ser_destroy(tmp);
                    return NULL;
            }

            ASSERT(dup_chksum_is_ok(tmp));
        }

        return tmp;
}

int DEFAULT_CC
env_set_user(char *username, char *passwd_file, int display)
{
    int error;
    int pw_uid;
    int pw_gid;
    int uid;
    char pw_shell[256];
    char pw_dir[256];
    char pw_gecos[256];
    char text[256];

    error = g_getuser_info(username, &pw_gid, &pw_uid, pw_shell, pw_dir,
                           pw_gecos);

    if (error == 0)
    {
        g_rm_temp_dir();
        error = g_setgid(pw_gid);

        if (error == 0)
        {
            error = g_initgroups(username, pw_gid);
        }

        if (error == 0)
        {
            uid = pw_uid;
            error = g_setuid(uid);
        }

        g_mk_temp_dir(0);

        if (error == 0)
        {
            g_clearenv();
            g_setenv("SHELL", pw_shell, 1);
            g_setenv("PATH", "/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin", 1);
            g_setenv("USER", username, 1);
            g_sprintf(text, "%d", uid);
            g_setenv("UID", text, 1);
            g_setenv("HOME", pw_dir, 1);
            g_set_current_dir(pw_dir);
            g_sprintf(text, ":%d.0", display);
            g_setenv("DISPLAY", text, 1);
            g_setenv("LANG", "en_US.UTF-8", 1);

            if (passwd_file != 0)
            {
                if (0 == g_cfg->auth_file_path)
                {
                    /* if no auth_file_path is set, then we go for
                       $HOME/.vnc/sesman_username_passwd */
                    g_mkdir(".vnc");
                    g_sprintf(passwd_file, "%s/.vnc/sesman_%s_passwd", pw_dir, username);
                }
                else
                {
                    /* we use auth_file_path as requested */
                    g_sprintf(passwd_file, g_cfg->auth_file_path, username);
                }

                LOG_DBG("pass file: %s", passwd_file);
            }
        }
    }
    else
    {
        log_message(LOG_LEVEL_ERROR,
                    "error getting user info for user %s", username);
    }

    return error;
}

static int serialize_base_pci(const struct serdes * instance,
                              char *                data,
                              const struct pci *    pci,
                              size_t                pdu_len)
{
        int              offset;
        address_t        addr;
        cep_id_t         cep;
        qos_id_t         qos;
        pdu_type_t       type;
        pdu_flags_t      flags;
        struct dt_cons * dt_cons;

        ASSERT(instance);
        ASSERT(data);
        ASSERT(pci_is_ok(pci));
        ASSERT(pdu_len);

        dt_cons = instance->dt_cons;
        ASSERT(dt_cons);

        /*
         * Putting 1 as version number for now
         * If another version is needed, this will have to change
         * Always 8 bit long
         */
        offset = 0;
        memcpy(data + offset, &version, VERSION_SIZE);
        offset += VERSION_SIZE;
        LOG_DBG("Serialized version %d, with size %d", version, VERSION_SIZE);

        addr = pci_destination(pci);
        memcpy(data + offset, &addr, dt_cons->address_length);
        offset += dt_cons->address_length;

        addr = pci_source(pci);
        memcpy(data + offset, &addr, dt_cons->address_length);
        offset += dt_cons->address_length;

        qos = pci_qos_id(pci);
        memcpy(data + offset, &qos, dt_cons->qos_id_length);
        offset += dt_cons->qos_id_length;

        cep = pci_cep_source(pci);
        memcpy(data + offset, &cep, dt_cons->cep_id_length);
        offset += dt_cons->cep_id_length;

        cep = pci_cep_destination(pci);
        memcpy(data + offset, &cep, dt_cons->cep_id_length);
        offset += dt_cons->cep_id_length;

        type = pci_type(pci);
        memcpy(data + offset, &type, PDU_TYPE_SIZE);
        offset += PDU_TYPE_SIZE;

        flags = pci_flags_get(pci);
        memcpy(data + offset, &flags, FLAGS_SIZE);
        offset += FLAGS_SIZE;

        memcpy(data + offset, &pdu_len, dt_cons->length_length);
        offset += dt_cons->length_length;

        return 0;
}

	void DEFAULT_CC
scp_v1_mng_process(struct SCP_CONNECTION* c, struct SCP_SESSION* s)
{
	long data;
	int retries;
	int current_try;
	enum SCP_SERVER_STATES_E e;
	struct SCP_DISCONNECTED_SESSION* slist = 0;
	int scount;
	int end = 0;

	retries = g_cfg->sec.login_retry;
	current_try = retries;

	data = auth_userpass(NULL, s->username, s->password);
	/*LOG_DBG("user: %s\npass: %s", s->username, s->password);*/

	if (!data)
	{
		scp_v1s_mng_deny_connection(c, "Login failed");
		log_message(&(g_cfg->log), LOG_LEVEL_INFO,
				"[MNG] Login failed for user %s. Connection terminated", s->username);
		scp_session_destroy(s);
		auth_end(data);
		return;
	}

	/* testing if login is allowed */
	if (0 == access_login_mng_allowed(s->username))
	{
		scp_v1s_mng_deny_connection(c, "Access to Terminal Server not allowed.");
		log_message(&(g_cfg->log), LOG_LEVEL_INFO,
				"[MNG] User %s not allowed on TS. Connection terminated", s->username);
		scp_session_destroy(s);
		auth_end(data);
		return;
	}

	e = scp_v1s_mng_allow_connection(c, s);

	end = 1;
	while (end)
	{
		switch (e)
		{
			case SCP_SERVER_STATE_MNG_ACTION:
				log_message(&(g_cfg->log), LOG_LEVEL_INFO, "Connection cancelled after session listing");
				break;

			case SCP_SERVER_STATE_MNG_LISTREQ:
				/* list disconnected sessions */
				slist = session_get_byuser(NULL, &scount, SESMAN_SESSION_STATUS_ALL);
				LOG_DBG(&(g_cfg->log), "sessions on TS: %d (slist: %x)", scount, slist);

				if (0 == slist)
				{
					//          e=scp_v1s_connection_error(c, "Internal error");
					log_message(&(g_cfg->log), LOG_LEVEL_INFO, "No sessions on Terminal Server");
					end = 0;
				}
				else
				{
					e = scp_v1s_mng_list_sessions(c, s, scount, slist);
					g_free(slist);
				}

				break;
			default:
				/* we check the other errors */
				parseCommonStates(e, "scp_v1s_mng_list_sessions()");
				end = 0;
				break;
		}
	}

	/* cleanup */
	scp_session_destroy(s);
	auth_end(data);
}

static void dma_tx_callback(void *arg, u32_t channel, int status)
{
	struct device *dev = get_dev_from_tx_dma_channel(channel);
	const struct i2s_stm32_cfg *cfg = DEV_CFG(dev);
	struct i2s_stm32_data *const dev_data = DEV_DATA(dev);
	struct stream *stream = &dev_data->tx;
	size_t mem_block_size;
	int ret;

	if (status != 0) {
		ret = -EIO;
		stream->state = I2S_STATE_ERROR;
		goto tx_disable;
	}

	__ASSERT_NO_MSG(stream->mem_block != NULL);

	/* All block data sent */
	k_mem_slab_free(stream->cfg.mem_slab, &stream->mem_block);
	stream->mem_block = NULL;

	/* Stop transmission if there was an error */
	if (stream->state == I2S_STATE_ERROR) {
		LOG_ERR("TX error detected");
		goto tx_disable;
	}

	/* Stop transmission if we were requested */
	if (stream->last_block) {
		stream->state = I2S_STATE_READY;
		goto tx_disable;
	}

	/* Prepare to send the next data block */
	ret = queue_get(&stream->mem_block_queue, &stream->mem_block,
			&mem_block_size);
	if (ret < 0) {
		if (stream->state == I2S_STATE_STOPPING) {
			stream->state = I2S_STATE_READY;
		} else {
			stream->state = I2S_STATE_ERROR;
		}
		goto tx_disable;
	}
	k_sem_give(&stream->sem);

	/* Assure cache coherency before DMA read operation */
	DCACHE_CLEAN(stream->mem_block, mem_block_size);

	ret = reload_dma(dev_data->dev_dma, stream->dma_channel,
			&stream->dma_cfg,
			stream->mem_block,
			(void *)LL_SPI_DMA_GetRegAddr(cfg->i2s),
			stream->cfg.block_size);
	if (ret < 0) {
		LOG_DBG("Failed to start TX DMA transfer: %d", ret);
		goto tx_disable;
	}

	return;

tx_disable:
	tx_stream_disable(stream, dev);
}

static int transceive(struct device *dev,
		      const struct spi_config *config,
		      const struct spi_buf_set *tx_bufs,
		      const struct spi_buf_set *rx_bufs,
		      bool asynchronous,
		      struct k_poll_signal *signal)
{
	const struct spi_dw_config *info = dev->config->config_info;
	struct spi_dw_data *spi = dev->driver_data;
	u32_t tmod = DW_SPI_CTRLR0_TMOD_TX_RX;
	u32_t reg_data;
	int ret;

	spi_context_lock(&spi->ctx, asynchronous, signal);

	/* Configure */
	ret = spi_dw_configure(info, spi, config);
	if (ret) {
		goto out;
	}

	if (!rx_bufs || !rx_bufs->buffers) {
		tmod = DW_SPI_CTRLR0_TMOD_TX;
	} else if (!tx_bufs || !tx_bufs->buffers) {
		tmod = DW_SPI_CTRLR0_TMOD_RX;
	}

	/* ToDo: add a way to determine EEPROM mode */

	if (tmod >= DW_SPI_CTRLR0_TMOD_RX &&
	    !spi_dw_is_slave(spi)) {
		reg_data = spi_dw_compute_ndf(rx_bufs->buffers,
					      rx_bufs->count,
					      spi->dfs);
		if (reg_data == UINT32_MAX) {
			ret = -EINVAL;
			goto out;
		}

		write_ctrlr1(reg_data, info->regs);
	} else {
		write_ctrlr1(0, info->regs);
	}

	if (spi_dw_is_slave(spi)) {
		/* Enabling MISO line relevantly */
		if (tmod == DW_SPI_CTRLR0_TMOD_RX) {
			tmod |= DW_SPI_CTRLR0_SLV_OE;
		} else {
			tmod &= ~DW_SPI_CTRLR0_SLV_OE;
		}
	}

	/* Updating TMOD in CTRLR0 register */
	reg_data = read_ctrlr0(info->regs);
	reg_data &= ~DW_SPI_CTRLR0_TMOD_RESET;
	reg_data |= tmod;

	write_ctrlr0(reg_data, info->regs);

	/* Set buffers info */
	spi_context_buffers_setup(&spi->ctx, tx_bufs, rx_bufs, spi->dfs);

	spi->fifo_diff = 0U;

	/* Tx Threshold */
	spi_dw_update_txftlr(info, spi);

	/* Does Rx thresholds needs to be lower? */
	reg_data = DW_SPI_RXFTLR_DFLT;

	if (spi_dw_is_slave(spi)) {
		if (spi->ctx.rx_len &&
		    spi->ctx.rx_len < DW_SPI_RXFTLR_DFLT) {
			reg_data = spi->ctx.rx_len - 1;
		}
	} else {
		if (spi->ctx.rx_len && spi->ctx.rx_len < DW_SPI_FIFO_DEPTH) {
			reg_data = spi->ctx.rx_len - 1;
		}
	}

	/* Rx Threshold */
	write_rxftlr(reg_data, info->regs);

	/* Enable interrupts */
	reg_data = !rx_bufs ?
		DW_SPI_IMR_UNMASK & DW_SPI_IMR_MASK_RX :
		DW_SPI_IMR_UNMASK;
	write_imr(reg_data, info->regs);

	spi_context_cs_control(&spi->ctx, true);

	LOG_DBG("Enabling controller");
	set_bit_ssienr(info->regs);

	ret = spi_context_wait_for_completion(&spi->ctx);
out:
	spi_context_release(&spi->ctx, ret);

//.........这里部分代码省略.........