Пример #1
0
/*
 * This function gets firmware and initializes it.
 *
 * The main initialization steps followed are -
 *      - Download the correct firmware to card
 *      - Issue the init commands to firmware
 */
static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
{
	int ret;
	char fmt[64];
	struct mwifiex_private *priv;
	struct mwifiex_adapter *adapter = context;
	struct mwifiex_fw_image fw;

	if (!firmware) {
		dev_err(adapter->dev,
			"Failed to get firmware %s\n", adapter->fw_name);
		goto done;
	}

	memset(&fw, 0, sizeof(struct mwifiex_fw_image));
	adapter->firmware = firmware;
	fw.fw_buf = (u8 *) adapter->firmware->data;
	fw.fw_len = adapter->firmware->size;

	if (adapter->if_ops.dnld_fw)
		ret = adapter->if_ops.dnld_fw(adapter, &fw);
	else
		ret = mwifiex_dnld_fw(adapter, &fw);
	if (ret == -1)
		goto done;

	dev_notice(adapter->dev, "WLAN FW is active\n");

	adapter->init_wait_q_woken = false;
	ret = mwifiex_init_fw(adapter);
	if (ret == -1) {
		goto done;
	} else if (!ret) {
		adapter->hw_status = MWIFIEX_HW_STATUS_READY;
		goto done;
	}
	/* Wait for mwifiex_init to complete */
	wait_event_interruptible(adapter->init_wait_q,
				 adapter->init_wait_q_woken);
	if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
		goto done;

	priv = adapter->priv[MWIFIEX_BSS_ROLE_STA];
	if (mwifiex_register_cfg80211(adapter)) {
		dev_err(adapter->dev, "cannot register with cfg80211\n");
		goto err_init_fw;
	}

	rtnl_lock();
	/* Create station interface by default */
	if (!mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d",
				      NL80211_IFTYPE_STATION, NULL, NULL)) {
		dev_err(adapter->dev, "cannot create default STA interface\n");
		goto err_add_intf;
	}

	/* Create AP interface by default */
	if (!mwifiex_add_virtual_intf(adapter->wiphy, "uap%d",
				      NL80211_IFTYPE_AP, NULL, NULL)) {
		dev_err(adapter->dev, "cannot create default AP interface\n");
		goto err_add_intf;
	}

	/* Create P2P interface by default */
	if (!mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d",
				      NL80211_IFTYPE_P2P_CLIENT, NULL, NULL)) {
		dev_err(adapter->dev, "cannot create default P2P interface\n");
		goto err_add_intf;
	}
	rtnl_unlock();

	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
	dev_notice(adapter->dev, "driver_version = %s\n", fmt);
	goto done;

err_add_intf:
	mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev);
	rtnl_unlock();
err_init_fw:
	pr_debug("info: %s: unregister device\n", __func__);
	adapter->if_ops.unregister_dev(adapter);
done:
	release_firmware(adapter->firmware);
	complete(&adapter->fw_load);
	return;
}
Пример #2
0
/*
 * This function gets firmware and initializes it.
 *
 * The main initialization steps followed are -
 *      - Download the correct firmware to card
 *      - Issue the init commands to firmware
 */
static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
{
	int ret;
	char fmt[64];
	struct mwifiex_private *priv;
	struct mwifiex_adapter *adapter = context;
	struct mwifiex_fw_image fw;
	struct semaphore *sem = adapter->card_sem;
	bool init_failed = false;
	struct wireless_dev *wdev;

	if (!firmware) {
		dev_err(adapter->dev,
			"Failed to get firmware %s\n", adapter->fw_name);
		goto err_dnld_fw;
	}

	memset(&fw, 0, sizeof(struct mwifiex_fw_image));
	adapter->firmware = firmware;
	fw.fw_buf = (u8 *) adapter->firmware->data;
	fw.fw_len = adapter->firmware->size;

	if (adapter->if_ops.dnld_fw)
		ret = adapter->if_ops.dnld_fw(adapter, &fw);
	else
		ret = mwifiex_dnld_fw(adapter, &fw);
	if (ret == -1)
		goto err_dnld_fw;

	dev_notice(adapter->dev, "WLAN FW is active\n");

	if (cal_data_cfg) {
		if ((request_firmware(&adapter->cal_data, cal_data_cfg,
				      adapter->dev)) < 0)
			dev_err(adapter->dev,
				"Cal data request_firmware() failed\n");
	}

	/* enable host interrupt after fw dnld is successful */
	if (adapter->if_ops.enable_int) {
		if (adapter->if_ops.enable_int(adapter))
			goto err_dnld_fw;
	}

	adapter->init_wait_q_woken = false;
	ret = mwifiex_init_fw(adapter);
	if (ret == -1) {
		goto err_init_fw;
	} else if (!ret) {
		adapter->hw_status = MWIFIEX_HW_STATUS_READY;
		goto done;
	}
	/* Wait for mwifiex_init to complete */
	wait_event_interruptible(adapter->init_wait_q,
				 adapter->init_wait_q_woken);
	if (adapter->hw_status != MWIFIEX_HW_STATUS_READY)
		goto err_init_fw;

	priv = adapter->priv[MWIFIEX_BSS_ROLE_STA];
	if (mwifiex_register_cfg80211(adapter)) {
		dev_err(adapter->dev, "cannot register with cfg80211\n");
		goto err_init_fw;
	}

	if (mwifiex_init_channel_scan_gap(adapter)) {
		dev_err(adapter->dev, "could not init channel stats table\n");
		goto err_init_fw;
	}

	if (driver_mode) {
		driver_mode &= MWIFIEX_DRIVER_MODE_BITMASK;
		driver_mode |= MWIFIEX_DRIVER_MODE_STA;
	}

	rtnl_lock();
	/* Create station interface by default */
	wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d",
					NL80211_IFTYPE_STATION, NULL, NULL);
	if (IS_ERR(wdev)) {
		dev_err(adapter->dev, "cannot create default STA interface\n");
		rtnl_unlock();
		goto err_add_intf;
	}

	if (driver_mode & MWIFIEX_DRIVER_MODE_UAP) {
		wdev = mwifiex_add_virtual_intf(adapter->wiphy, "uap%d",
						NL80211_IFTYPE_AP, NULL, NULL);
		if (IS_ERR(wdev)) {
			dev_err(adapter->dev, "cannot create AP interface\n");
			rtnl_unlock();
			goto err_add_intf;
		}
	}

	if (driver_mode & MWIFIEX_DRIVER_MODE_P2P) {
		wdev = mwifiex_add_virtual_intf(adapter->wiphy, "p2p%d",
						NL80211_IFTYPE_P2P_CLIENT, NULL,
						NULL);
		if (IS_ERR(wdev)) {
			dev_err(adapter->dev,
				"cannot create p2p client interface\n");
			rtnl_unlock();
			goto err_add_intf;
		}
	}
	rtnl_unlock();

	mwifiex_drv_get_driver_version(adapter, fmt, sizeof(fmt) - 1);
	dev_notice(adapter->dev, "driver_version = %s\n", fmt);
	goto done;

err_add_intf:
	wiphy_unregister(adapter->wiphy);
	wiphy_free(adapter->wiphy);
err_init_fw:
	if (adapter->if_ops.disable_int)
		adapter->if_ops.disable_int(adapter);
err_dnld_fw:
	pr_debug("info: %s: unregister device\n", __func__);
	if (adapter->if_ops.unregister_dev)
		adapter->if_ops.unregister_dev(adapter);

	if ((adapter->hw_status == MWIFIEX_HW_STATUS_FW_READY) ||
	    (adapter->hw_status == MWIFIEX_HW_STATUS_READY)) {
		pr_debug("info: %s: shutdown mwifiex\n", __func__);
		adapter->init_wait_q_woken = false;

		if (mwifiex_shutdown_drv(adapter) == -EINPROGRESS)
			wait_event_interruptible(adapter->init_wait_q,
						 adapter->init_wait_q_woken);
	}
	adapter->surprise_removed = true;
	mwifiex_terminate_workqueue(adapter);
	init_failed = true;
done:
	if (adapter->cal_data) {
		release_firmware(adapter->cal_data);
		adapter->cal_data = NULL;
	}
	if (adapter->firmware) {
		release_firmware(adapter->firmware);
		adapter->firmware = NULL;
	}
	if (init_failed)
		mwifiex_free_adapter(adapter);
	up(sem);
	return;
}