[deliverable/linux.git] / drivers / net / wireless / mwifiex / util.c

/*
 * Marvell Wireless LAN device driver: utility functions
 *
 * Copyright (C) 2011, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 */

#include "decl.h"
#include "ioctl.h"
#include "util.h"
#include "fw.h"
#include "main.h"
#include "wmm.h"
#include "11n.h"

/*
 * Firmware initialization complete callback handler.
 *
 * This function wakes up the function waiting on the init
 * wait queue for the firmware initialization to complete.
 */
int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
{

	adapter->init_wait_q_woken = true;
	wake_up_interruptible(&adapter->init_wait_q);
	return 0;
}

/*
 * Firmware shutdown complete callback handler.
 *
 * This function sets the hardware status to not ready and wakes up
 * the function waiting on the init wait queue for the firmware
 * shutdown to complete.
 */
int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
{
	adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
	adapter->init_wait_q_woken = true;
	wake_up_interruptible(&adapter->init_wait_q);
	return 0;
}

/*
 * This function sends init/shutdown command
 * to firmware.
 */
int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
			     u32 func_init_shutdown)
{
	int ret;
	u16 cmd;

	if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
		cmd = HostCmd_CMD_FUNC_INIT;
	} else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
		cmd = HostCmd_CMD_FUNC_SHUTDOWN;
	} else {
		dev_err(priv->adapter->dev, "unsupported parameter\n");
		return -1;
	}

	/* Send command to firmware */
	ret = mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);

	return ret;
}
EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);

/*
 * IOCTL request handler to set/get debug information.
 *
 * This function collates/sets the information from/to different driver
 * structures.
 */
int mwifiex_get_debug_info(struct mwifiex_private *priv,
			   struct mwifiex_debug_info *info)
{
	struct mwifiex_adapter *adapter = priv->adapter;

	if (info) {
		memcpy(info->packets_out,
		       priv->wmm.packets_out,
		       sizeof(priv->wmm.packets_out));
		info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
		info->tx_buf_size = (u32) adapter->tx_buf_size;
		info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(
					priv, info->rx_tbl);
		info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(
					priv, info->tx_tbl);
		info->ps_mode = adapter->ps_mode;
		info->ps_state = adapter->ps_state;
		info->is_deep_sleep = adapter->is_deep_sleep;
		info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
		info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
		info->is_hs_configured = adapter->is_hs_configured;
		info->hs_activated = adapter->hs_activated;
		info->num_cmd_host_to_card_failure
			= adapter->dbg.num_cmd_host_to_card_failure;
		info->num_cmd_sleep_cfm_host_to_card_failure
			= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
		info->num_tx_host_to_card_failure
			= adapter->dbg.num_tx_host_to_card_failure;
		info->num_event_deauth = adapter->dbg.num_event_deauth;
		info->num_event_disassoc = adapter->dbg.num_event_disassoc;
		info->num_event_link_lost = adapter->dbg.num_event_link_lost;
		info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
		info->num_cmd_assoc_success =
			adapter->dbg.num_cmd_assoc_success;
		info->num_cmd_assoc_failure =
			adapter->dbg.num_cmd_assoc_failure;
		info->num_tx_timeout = adapter->dbg.num_tx_timeout;
		info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
		info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
		info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
		memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
		       sizeof(adapter->dbg.last_cmd_id));
		memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
		       sizeof(adapter->dbg.last_cmd_act));
		info->last_cmd_index = adapter->dbg.last_cmd_index;
		memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
		       sizeof(adapter->dbg.last_cmd_resp_id));
		info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
		memcpy(info->last_event, adapter->dbg.last_event,
		       sizeof(adapter->dbg.last_event));
		info->last_event_index = adapter->dbg.last_event_index;
		info->data_sent = adapter->data_sent;
		info->cmd_sent = adapter->cmd_sent;
		info->cmd_resp_received = adapter->cmd_resp_received;
	}

	return 0;
}

/*
 * This function processes the received packet before sending it to the
 * kernel.
 *
 * It extracts the SKB from the received buffer and sends it to kernel.
 * In case the received buffer does not contain the data in SKB format,
 * the function creates a blank SKB, fills it with the data from the
 * received buffer and then sends this new SKB to the kernel.
 */
int mwifiex_recv_packet(struct mwifiex_adapter *adapter, struct sk_buff *skb)
{
	struct mwifiex_rxinfo *rx_info = NULL;
	struct mwifiex_private *priv = NULL;

	if (!skb)
		return -1;

	rx_info = MWIFIEX_SKB_RXCB(skb);
	priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);
	if (!priv)
		return -1;

	skb->dev = priv->netdev;
	skb->protocol = eth_type_trans(skb, priv->netdev);
	skb->ip_summed = CHECKSUM_NONE;
	priv->stats.rx_bytes += skb->len;
	priv->stats.rx_packets++;
	if (in_interrupt())
		netif_rx(skb);
	else
		netif_rx_ni(skb);

	return 0;
}

/*
 * Receive packet completion callback handler.
 *
 * This function updates the statistics and frees the buffer SKB.
 */
int mwifiex_recv_complete(struct mwifiex_adapter *adapter,
			  struct sk_buff *skb, int status)
{
	struct mwifiex_private *priv = NULL;
	struct mwifiex_rxinfo *rx_info = NULL;

	if (!skb)
		return 0;

	rx_info = MWIFIEX_SKB_RXCB(skb);
	priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);

	if (priv && (status == -1))
		priv->stats.rx_dropped++;

	dev_kfree_skb_any(skb);

	return 0;
}

/*
 * IOCTL completion callback handler.
 *
 * This function is called when a pending IOCTL is completed.
 *
 * If work queue support is enabled, the function wakes up the
 * corresponding waiting function. Otherwise, it processes the
 * IOCTL response and frees the response buffer.
 */
int mwifiex_complete_cmd(struct mwifiex_adapter *adapter)
{
	atomic_dec(&adapter->cmd_pending);
	dev_dbg(adapter->dev, "cmd completed: status=%d\n",
					adapter->cmd_wait_q.status);

	adapter->cmd_wait_q.condition = true;

	if (adapter->cmd_wait_q.status == -ETIMEDOUT)
		dev_err(adapter->dev, "cmd timeout\n");
	else
		wake_up_interruptible(&adapter->cmd_wait_q.wait);

	return 0;
}
Commit	Line	Data
5e6e3a92 BZ	1	/*
	2	* Marvell Wireless LAN device driver: utility functions
	3	*
	4	* Copyright (C) 2011, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	16	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	17	* this warranty disclaimer.
	18	*/
	19
	20	#include "decl.h"
	21	#include "ioctl.h"
	22	#include "util.h"
	23	#include "fw.h"
	24	#include "main.h"
	25	#include "wmm.h"
	26	#include "11n.h"
	27
	28	/*
	29	* Firmware initialization complete callback handler.
	30	*
	31	* This function wakes up the function waiting on the init
	32	* wait queue for the firmware initialization to complete.
	33	*/
	34	int mwifiex_init_fw_complete(struct mwifiex_adapter *adapter)
	35	{
	36
	37	adapter->init_wait_q_woken = true;
	38	wake_up_interruptible(&adapter->init_wait_q);
	39	return 0;
	40	}
	41
	42	/*
	43	* Firmware shutdown complete callback handler.
	44	*
	45	* This function sets the hardware status to not ready and wakes up
	46	* the function waiting on the init wait queue for the firmware
	47	* shutdown to complete.
	48	*/
	49	int mwifiex_shutdown_fw_complete(struct mwifiex_adapter *adapter)
	50	{
	51	adapter->hw_status = MWIFIEX_HW_STATUS_NOT_READY;
	52	adapter->init_wait_q_woken = true;
	53	wake_up_interruptible(&adapter->init_wait_q);
	54	return 0;
	55	}
	56
	57	/*
600f5d90	58	* This function sends init/shutdown command
5e6e3a92	59	* to firmware.
5e6e3a92	60	*/
600f5d90 AK	61	int mwifiex_init_shutdown_fw(struct mwifiex_private *priv,
600f5d90 AK	62	u32 func_init_shutdown)
5e6e3a92	63	{
5e6e3a92 BZ	64	int ret;
	65	u16 cmd;
	66
	67	if (func_init_shutdown == MWIFIEX_FUNC_INIT) {
	68	cmd = HostCmd_CMD_FUNC_INIT;
	69	} else if (func_init_shutdown == MWIFIEX_FUNC_SHUTDOWN) {
	70	cmd = HostCmd_CMD_FUNC_SHUTDOWN;
	71	} else {
600f5d90	72	dev_err(priv->adapter->dev, "unsupported parameter\n");
5e6e3a92 BZ	73	return -1;
	74	}
	75
	76	/* Send command to firmware */
600f5d90	77	ret = mwifiex_send_cmd_sync(priv, cmd, HostCmd_ACT_GEN_SET, 0, NULL);
5e6e3a92 BZ	78
	79	return ret;
	80	}
600f5d90	81	EXPORT_SYMBOL_GPL(mwifiex_init_shutdown_fw);
5e6e3a92 BZ	82
	83	/*
	84	* IOCTL request handler to set/get debug information.
	85	*
	86	* This function collates/sets the information from/to different driver
	87	* structures.
	88	*/
	89	int mwifiex_get_debug_info(struct mwifiex_private *priv,
	90	struct mwifiex_debug_info *info)
	91	{
	92	struct mwifiex_adapter *adapter = priv->adapter;
	93
	94	if (info) {
	95	memcpy(info->packets_out,
	96	priv->wmm.packets_out,
	97	sizeof(priv->wmm.packets_out));
	98	info->max_tx_buf_size = (u32) adapter->max_tx_buf_size;
	99	info->tx_buf_size = (u32) adapter->tx_buf_size;
	100	info->rx_tbl_num = mwifiex_get_rx_reorder_tbl(
	101	priv, info->rx_tbl);
	102	info->tx_tbl_num = mwifiex_get_tx_ba_stream_tbl(
	103	priv, info->tx_tbl);
	104	info->ps_mode = adapter->ps_mode;
	105	info->ps_state = adapter->ps_state;
	106	info->is_deep_sleep = adapter->is_deep_sleep;
	107	info->pm_wakeup_card_req = adapter->pm_wakeup_card_req;
	108	info->pm_wakeup_fw_try = adapter->pm_wakeup_fw_try;
	109	info->is_hs_configured = adapter->is_hs_configured;
	110	info->hs_activated = adapter->hs_activated;
	111	info->num_cmd_host_to_card_failure
	112	= adapter->dbg.num_cmd_host_to_card_failure;
	113	info->num_cmd_sleep_cfm_host_to_card_failure
	114	= adapter->dbg.num_cmd_sleep_cfm_host_to_card_failure;
	115	info->num_tx_host_to_card_failure
	116	= adapter->dbg.num_tx_host_to_card_failure;
	117	info->num_event_deauth = adapter->dbg.num_event_deauth;
	118	info->num_event_disassoc = adapter->dbg.num_event_disassoc;
	119	info->num_event_link_lost = adapter->dbg.num_event_link_lost;
	120	info->num_cmd_deauth = adapter->dbg.num_cmd_deauth;
	121	info->num_cmd_assoc_success =
	122	adapter->dbg.num_cmd_assoc_success;
	123	info->num_cmd_assoc_failure =
	124	adapter->dbg.num_cmd_assoc_failure;
	125	info->num_tx_timeout = adapter->dbg.num_tx_timeout;
	126	info->num_cmd_timeout = adapter->dbg.num_cmd_timeout;
	127	info->timeout_cmd_id = adapter->dbg.timeout_cmd_id;
	128	info->timeout_cmd_act = adapter->dbg.timeout_cmd_act;
	129	memcpy(info->last_cmd_id, adapter->dbg.last_cmd_id,
	130	sizeof(adapter->dbg.last_cmd_id));
	131	memcpy(info->last_cmd_act, adapter->dbg.last_cmd_act,
	132	sizeof(adapter->dbg.last_cmd_act));
	133	info->last_cmd_index = adapter->dbg.last_cmd_index;
	134	memcpy(info->last_cmd_resp_id, adapter->dbg.last_cmd_resp_id,
	135	sizeof(adapter->dbg.last_cmd_resp_id));
	136	info->last_cmd_resp_index = adapter->dbg.last_cmd_resp_index;
	137	memcpy(info->last_event, adapter->dbg.last_event,
	138	sizeof(adapter->dbg.last_event));
	139	info->last_event_index = adapter->dbg.last_event_index;
	140	info->data_sent = adapter->data_sent;
	141	info->cmd_sent = adapter->cmd_sent;
	142	info->cmd_resp_received = adapter->cmd_resp_received;
	143	}
	144
	145	return 0;
146	}
147
148	/*
149	* This function processes the received packet before sending it to the
150	* kernel.
151	*
152	* It extracts the SKB from the received buffer and sends it to kernel.
153	* In case the received buffer does not contain the data in SKB format,
154	* the function creates a blank SKB, fills it with the data from the
155	* received buffer and then sends this new SKB to the kernel.
156	*/
157	int mwifiex_recv_packet(struct mwifiex_adapter adapter, struct sk_buff skb)
158	{
159	struct mwifiex_rxinfo *rx_info = NULL;
160	struct mwifiex_private *priv = NULL;
161
162	if (!skb)
163	return -1;
164
165	rx_info = MWIFIEX_SKB_RXCB(skb);
166	priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);
167	if (!priv)
168	return -1;
169
170	skb->dev = priv->netdev;
171	skb->protocol = eth_type_trans(skb, priv->netdev);
172	skb->ip_summed = CHECKSUM_NONE;
173	priv->stats.rx_bytes += skb->len;
174	priv->stats.rx_packets++;
175	if (in_interrupt())
176	netif_rx(skb);
177	else
178	netif_rx_ni(skb);
179
180	return 0;
181	}
182
183	/*
184	* Receive packet completion callback handler.
185	*
186	* This function updates the statistics and frees the buffer SKB.
187	*/
188	int mwifiex_recv_complete(struct mwifiex_adapter *adapter,
189	struct sk_buff *skb, int status)
190	{
191	struct mwifiex_private *priv = NULL;
192	struct mwifiex_rxinfo *rx_info = NULL;
193
194	if (!skb)
195	return 0;
196
197	rx_info = MWIFIEX_SKB_RXCB(skb);
198	priv = mwifiex_bss_index_to_priv(adapter, rx_info->bss_index);
199
200	if (priv && (status == -1))
201	priv->stats.rx_dropped++;
202
203	dev_kfree_skb_any(skb);
204
205	return 0;
206	}
207
208	/*
209	* IOCTL completion callback handler.
210	*
211	* This function is called when a pending IOCTL is completed.
212	*
213	* If work queue support is enabled, the function wakes up the
214	* corresponding waiting function. Otherwise, it processes the
215	* IOCTL response and frees the response buffer.
216	*/
600f5d90	217	int mwifiex_complete_cmd(struct mwifiex_adapter *adapter)
5e6e3a92	218	{
600f5d90 AK	219	atomic_dec(&adapter->cmd_pending);
	220	dev_dbg(adapter->dev, "cmd completed: status=%d\n",
	221	adapter->cmd_wait_q.status);
5e6e3a92	222
600f5d90	223	adapter->cmd_wait_q.condition = true;
5e6e3a92	224
600f5d90 AK	225	if (adapter->cmd_wait_q.status == -ETIMEDOUT)
	226	dev_err(adapter->dev, "cmd timeout\n");
	227	else
	228	wake_up_interruptible(&adapter->cmd_wait_q.wait);
5e6e3a92 BZ	229
	230	return 0;
	231	}