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

/*
 * Marvell Wireless LAN device driver: AP specific command handling
 *
 * Copyright (C) 2012, 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 "main.h"

/* This function initializes some of mwifiex_uap_bss_param variables.
 * This helps FW in ignoring invalid values. These values may or may not
 * be get updated to valid ones at later stage.
 */
void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
{
	config->rts_threshold = 0x7FFF;
	config->frag_threshold = 0x7FFF;
	config->retry_limit = 0x7F;
}

/* Parse AP config structure and prepare TLV based command structure
 * to be sent to FW for uAP configuration
 */
static int mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd,
				      u16 cmd_action, void *cmd_buf)
{
	u8 *tlv;
	struct host_cmd_ds_sys_config *sys_config = &cmd->params.uap_sys_config;
	struct host_cmd_tlv_dtim_period *dtim_period;
	struct host_cmd_tlv_beacon_period *beacon_period;
	struct host_cmd_tlv_ssid *ssid;
	struct host_cmd_tlv_channel_band *chan_band;
	struct host_cmd_tlv_frag_threshold *frag_threshold;
	struct host_cmd_tlv_rts_threshold *rts_threshold;
	struct host_cmd_tlv_retry_limit *retry_limit;
	struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
	u16 cmd_size;

	cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
	cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);

	sys_config->action = cpu_to_le16(cmd_action);

	tlv = sys_config->tlv;

	if (bss_cfg->ssid.ssid_len) {
		ssid = (struct host_cmd_tlv_ssid *)tlv;
		ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
		ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
		memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
		cmd_size += sizeof(struct host_cmd_tlv) +
			    bss_cfg->ssid.ssid_len;
		tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
	}
	if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
		chan_band = (struct host_cmd_tlv_channel_band *)tlv;
		chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
		chan_band->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
				    sizeof(struct host_cmd_tlv));
		chan_band->band_config = bss_cfg->band_cfg;
		chan_band->channel = bss_cfg->channel;
		cmd_size += sizeof(struct host_cmd_tlv_channel_band);
		tlv += sizeof(struct host_cmd_tlv_channel_band);
	}
	if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
	    bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
		beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
		beacon_period->tlv.type =
					cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
		beacon_period->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
				    sizeof(struct host_cmd_tlv));
		beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
		cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
		tlv += sizeof(struct host_cmd_tlv_beacon_period);
	}
	if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
	    bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
		dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
		dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
		dtim_period->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
				    sizeof(struct host_cmd_tlv));
		dtim_period->period = bss_cfg->dtim_period;
		cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
		tlv += sizeof(struct host_cmd_tlv_dtim_period);
	}
	if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
		rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
		rts_threshold->tlv.type =
					cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
		rts_threshold->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
				    sizeof(struct host_cmd_tlv));
		rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
		cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
		tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	}
	if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
	    (bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
		frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
		frag_threshold->tlv.type =
				cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
		frag_threshold->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
				    sizeof(struct host_cmd_tlv));
		frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
		cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
		tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	}
	if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
		retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
		retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
		retry_limit->tlv.len =
			cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
				    sizeof(struct host_cmd_tlv));
		retry_limit->limit = (u8)bss_cfg->retry_limit;
		cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
		tlv += sizeof(struct host_cmd_tlv_retry_limit);
	}

	cmd->size = cpu_to_le16(cmd_size);
	return 0;
}

/* This function prepares the AP specific commands before sending them
 * to the firmware.
 * This is a generic function which calls specific command preparation
 * routines based upon the command number.
 */
int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
			    u16 cmd_action, u32 cmd_oid,
			    void *data_buf, void *cmd_buf)
{
	struct host_cmd_ds_command *cmd = cmd_buf;

	switch (cmd_no) {
	case HostCmd_CMD_UAP_SYS_CONFIG:
		if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, data_buf))
			return -1;
		break;
	case HostCmd_CMD_UAP_BSS_START:
	case HostCmd_CMD_UAP_BSS_STOP:
		cmd->command = cpu_to_le16(cmd_no);
		cmd->size = cpu_to_le16(S_DS_GEN);
		break;
	default:
		dev_err(priv->adapter->dev,
			"PREP_CMD: unknown cmd %#x\n", cmd_no);
		return -1;
	}

	return 0;
}

/* This function sets the RF channel for AP.
 *
 * This function populates channel information in AP config structure
 * and sends command to configure channel information in AP.
 */
int mwifiex_uap_set_channel(struct mwifiex_private *priv, int channel)
{
	struct mwifiex_uap_bss_param *bss_cfg;
	struct wiphy *wiphy = priv->wdev->wiphy;

	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
	if (!bss_cfg)
		return -ENOMEM;

	bss_cfg->band_cfg = BAND_CONFIG_MANUAL;
	bss_cfg->channel = channel;

	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
				   HostCmd_ACT_GEN_SET, 0, bss_cfg)) {
		wiphy_err(wiphy, "Failed to set the uAP channel\n");
		kfree(bss_cfg);
		return -1;
	}

	kfree(bss_cfg);
	return 0;
}
Commit	Line	Data
40d07030 AP	1	/*
	2	* Marvell Wireless LAN device driver: AP specific command handling
	3	*
	4	* Copyright (C) 2012, 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 "main.h"
	21
9b930eae AP	22	/* This function initializes some of mwifiex_uap_bss_param variables.
	23	* This helps FW in ignoring invalid values. These values may or may not
	24	* be get updated to valid ones at later stage.
	25	*/
	26	void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param *config)
	27	{
	28	config->rts_threshold = 0x7FFF;
	29	config->frag_threshold = 0x7FFF;
	30	config->retry_limit = 0x7F;
	31	}
	32
4db16a18 AP	33	/* Parse AP config structure and prepare TLV based command structure
	34	* to be sent to FW for uAP configuration
	35	*/
	36	static int mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command *cmd,
	37	u16 cmd_action, void *cmd_buf)
	38	{
	39	u8 *tlv;
	40	struct host_cmd_ds_sys_config *sys_config = &cmd->params.uap_sys_config;
12190c5d AP	41	struct host_cmd_tlv_dtim_period *dtim_period;
	42	struct host_cmd_tlv_beacon_period *beacon_period;
	43	struct host_cmd_tlv_ssid *ssid;
4db16a18	44	struct host_cmd_tlv_channel_band *chan_band;
9b930eae AP	45	struct host_cmd_tlv_frag_threshold *frag_threshold;
	46	struct host_cmd_tlv_rts_threshold *rts_threshold;
	47	struct host_cmd_tlv_retry_limit *retry_limit;
4db16a18 AP	48	struct mwifiex_uap_bss_param *bss_cfg = cmd_buf;
	49	u16 cmd_size;
	50
	51	cmd->command = cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG);
	52	cmd_size = (u16)(sizeof(struct host_cmd_ds_sys_config) + S_DS_GEN);
	53
	54	sys_config->action = cpu_to_le16(cmd_action);
	55
	56	tlv = sys_config->tlv;
	57
12190c5d AP	58	if (bss_cfg->ssid.ssid_len) {
	59	ssid = (struct host_cmd_tlv_ssid *)tlv;
	60	ssid->tlv.type = cpu_to_le16(TLV_TYPE_UAP_SSID);
	61	ssid->tlv.len = cpu_to_le16((u16)bss_cfg->ssid.ssid_len);
	62	memcpy(ssid->ssid, bss_cfg->ssid.ssid, bss_cfg->ssid.ssid_len);
	63	cmd_size += sizeof(struct host_cmd_tlv) +
	64	bss_cfg->ssid.ssid_len;
	65	tlv += sizeof(struct host_cmd_tlv) + bss_cfg->ssid.ssid_len;
	66	}
4db16a18 AP	67	if (bss_cfg->channel && bss_cfg->channel <= MAX_CHANNEL_BAND_BG) {
	68	chan_band = (struct host_cmd_tlv_channel_band *)tlv;
	69	chan_band->tlv.type = cpu_to_le16(TLV_TYPE_CHANNELBANDLIST);
	70	chan_band->tlv.len =
	71	cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band) -
	72	sizeof(struct host_cmd_tlv));
	73	chan_band->band_config = bss_cfg->band_cfg;
	74	chan_band->channel = bss_cfg->channel;
	75	cmd_size += sizeof(struct host_cmd_tlv_channel_band);
	76	tlv += sizeof(struct host_cmd_tlv_channel_band);
	77	}
12190c5d AP	78	if (bss_cfg->beacon_period >= MIN_BEACON_PERIOD &&
	79	bss_cfg->beacon_period <= MAX_BEACON_PERIOD) {
	80	beacon_period = (struct host_cmd_tlv_beacon_period *)tlv;
	81	beacon_period->tlv.type =
	82	cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD);
	83	beacon_period->tlv.len =
	84	cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period) -
	85	sizeof(struct host_cmd_tlv));
	86	beacon_period->period = cpu_to_le16(bss_cfg->beacon_period);
	87	cmd_size += sizeof(struct host_cmd_tlv_beacon_period);
	88	tlv += sizeof(struct host_cmd_tlv_beacon_period);
	89	}
	90	if (bss_cfg->dtim_period >= MIN_DTIM_PERIOD &&
	91	bss_cfg->dtim_period <= MAX_DTIM_PERIOD) {
	92	dtim_period = (struct host_cmd_tlv_dtim_period *)tlv;
	93	dtim_period->tlv.type = cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD);
	94	dtim_period->tlv.len =
	95	cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period) -
	96	sizeof(struct host_cmd_tlv));
	97	dtim_period->period = bss_cfg->dtim_period;
	98	cmd_size += sizeof(struct host_cmd_tlv_dtim_period);
	99	tlv += sizeof(struct host_cmd_tlv_dtim_period);
	100	}
9b930eae AP	101	if (bss_cfg->rts_threshold <= MWIFIEX_RTS_MAX_VALUE) {
	102	rts_threshold = (struct host_cmd_tlv_rts_threshold *)tlv;
	103	rts_threshold->tlv.type =
	104	cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD);
	105	rts_threshold->tlv.len =
	106	cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold) -
	107	sizeof(struct host_cmd_tlv));
	108	rts_threshold->rts_thr = cpu_to_le16(bss_cfg->rts_threshold);
	109	cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
	110	tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	111	}
	112	if ((bss_cfg->frag_threshold >= MWIFIEX_FRAG_MIN_VALUE) &&
	113	(bss_cfg->frag_threshold <= MWIFIEX_FRAG_MAX_VALUE)) {
	114	frag_threshold = (struct host_cmd_tlv_frag_threshold *)tlv;
	115	frag_threshold->tlv.type =
	116	cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD);
	117	frag_threshold->tlv.len =
	118	cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold) -
	119	sizeof(struct host_cmd_tlv));
	120	frag_threshold->frag_thr = cpu_to_le16(bss_cfg->frag_threshold);
	121	cmd_size += sizeof(struct host_cmd_tlv_frag_threshold);
	122	tlv += sizeof(struct host_cmd_tlv_frag_threshold);
	123	}
	124	if (bss_cfg->retry_limit <= MWIFIEX_RETRY_LIMIT) {
	125	retry_limit = (struct host_cmd_tlv_retry_limit *)tlv;
	126	retry_limit->tlv.type = cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT);
	127	retry_limit->tlv.len =
	128	cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit) -
	129	sizeof(struct host_cmd_tlv));
	130	retry_limit->limit = (u8)bss_cfg->retry_limit;
	131	cmd_size += sizeof(struct host_cmd_tlv_retry_limit);
	132	tlv += sizeof(struct host_cmd_tlv_retry_limit);
	133	}
4db16a18 AP	134
	135	cmd->size = cpu_to_le16(cmd_size);
	136	return 0;
	137	}
	138
40d07030 AP	139	/* This function prepares the AP specific commands before sending them
	140	* to the firmware.
	141	* This is a generic function which calls specific command preparation
	142	* routines based upon the command number.
	143	*/
	144	int mwifiex_uap_prepare_cmd(struct mwifiex_private *priv, u16 cmd_no,
	145	u16 cmd_action, u32 cmd_oid,
	146	void data_buf, void cmd_buf)
	147	{
	148	struct host_cmd_ds_command *cmd = cmd_buf;
	149
	150	switch (cmd_no) {
4db16a18 AP	151	case HostCmd_CMD_UAP_SYS_CONFIG:
	152	if (mwifiex_cmd_uap_sys_config(cmd, cmd_action, data_buf))
	153	return -1;
	154	break;
40d07030 AP	155	case HostCmd_CMD_UAP_BSS_START:
	156	case HostCmd_CMD_UAP_BSS_STOP:
	157	cmd->command = cpu_to_le16(cmd_no);
	158	cmd->size = cpu_to_le16(S_DS_GEN);
	159	break;
	160	default:
	161	dev_err(priv->adapter->dev,
	162	"PREP_CMD: unknown cmd %#x\n", cmd_no);
	163	return -1;
	164	}
	165
	166	return 0;
	167	}
4db16a18 AP	168
	169	/* This function sets the RF channel for AP.
	170	*
	171	* This function populates channel information in AP config structure
	172	* and sends command to configure channel information in AP.
	173	*/
	174	int mwifiex_uap_set_channel(struct mwifiex_private *priv, int channel)
	175	{
	176	struct mwifiex_uap_bss_param *bss_cfg;
	177	struct wiphy *wiphy = priv->wdev->wiphy;
	178
	179	bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
	180	if (!bss_cfg)
	181	return -ENOMEM;
	182
	183	bss_cfg->band_cfg = BAND_CONFIG_MANUAL;
	184	bss_cfg->channel = channel;
	185
	186	if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
	187	HostCmd_ACT_GEN_SET, 0, bss_cfg)) {
	188	wiphy_err(wiphy, "Failed to set the uAP channel\n");
	189	kfree(bss_cfg);
	190	return -1;
	191	}
	192
	193	kfree(bss_cfg);
	194	return 0;
	195	}