cmd.c

linux内核源码

/**
  * This file contains the handling of command.
  * It prepares command and sends it to firmware when it is ready.
  */

#include <net/iw_handler.h>
#include "host.h"
#include "hostcmd.h"
#include "decl.h"
#include "defs.h"
#include "dev.h"
#include "join.h"
#include "wext.h"

static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode);

static u16 commands_allowed_in_ps[] = {
	CMD_802_11_RSSI,
};

/**
 *  @brief This function checks if the commans is allowed
 *  in PS mode not.
 *
 *  @param command the command ID
 *  @return 	   TRUE or FALSE
 */
static u8 is_command_allowed_in_ps(__le16 command)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(commands_allowed_in_ps); i++) {
		if (command == cpu_to_le16(commands_allowed_in_ps[i]))
			return 1;
	}

	return 0;
}

static int wlan_cmd_hw_spec(wlan_private * priv, struct cmd_ds_command *cmd)
{
	struct cmd_ds_get_hw_spec *hwspec = &cmd->params.hwspec;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_GET_HW_SPEC);
	cmd->size = cpu_to_le16(sizeof(struct cmd_ds_get_hw_spec) + S_DS_GEN);
	memcpy(hwspec->permanentaddr, priv->adapter->current_addr, ETH_ALEN);

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_ps_mode(wlan_private * priv,
				   struct cmd_ds_command *cmd,
				   u16 cmd_action)
{
	struct cmd_ds_802_11_ps_mode *psm = &cmd->params.psmode;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_PS_MODE);
	cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_ps_mode) +
				S_DS_GEN);
	psm->action = cpu_to_le16(cmd_action);
	psm->multipledtim = 0;
	switch (cmd_action) {
	case CMD_SUBCMD_ENTER_PS:
		lbs_deb_cmd("PS command:" "SubCode- Enter PS\n");

		psm->locallisteninterval = 0;
		psm->nullpktinterval = 0;
		psm->multipledtim =
		    cpu_to_le16(MRVDRV_DEFAULT_MULTIPLE_DTIM);
		break;

	case CMD_SUBCMD_EXIT_PS:
		lbs_deb_cmd("PS command:" "SubCode- Exit PS\n");
		break;

	case CMD_SUBCMD_SLEEP_CONFIRMED:
		lbs_deb_cmd("PS command: SubCode- sleep confirm\n");
		break;

	default:
		break;
	}

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_inactivity_timeout(wlan_private * priv,
					      struct cmd_ds_command *cmd,
					      u16 cmd_action, void *pdata_buf)
{
	u16 *timeout = pdata_buf;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_INACTIVITY_TIMEOUT);
	cmd->size =
	    cpu_to_le16(sizeof(struct cmd_ds_802_11_inactivity_timeout)
			     + S_DS_GEN);

	cmd->params.inactivity_timeout.action = cpu_to_le16(cmd_action);

	if (cmd_action)
		cmd->params.inactivity_timeout.timeout = cpu_to_le16(*timeout);
	else
		cmd->params.inactivity_timeout.timeout = 0;

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_sleep_params(wlan_private * priv,
					struct cmd_ds_command *cmd,
					u16 cmd_action)
{
	wlan_adapter *adapter = priv->adapter;
	struct cmd_ds_802_11_sleep_params *sp = &cmd->params.sleep_params;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->size = cpu_to_le16((sizeof(struct cmd_ds_802_11_sleep_params)) +
				S_DS_GEN);
	cmd->command = cpu_to_le16(CMD_802_11_SLEEP_PARAMS);

	if (cmd_action == CMD_ACT_GET) {
		memset(&adapter->sp, 0, sizeof(struct sleep_params));
		memset(sp, 0, sizeof(struct cmd_ds_802_11_sleep_params));
		sp->action = cpu_to_le16(cmd_action);
	} else if (cmd_action == CMD_ACT_SET) {
		sp->action = cpu_to_le16(cmd_action);
		sp->error = cpu_to_le16(adapter->sp.sp_error);
		sp->offset = cpu_to_le16(adapter->sp.sp_offset);
		sp->stabletime = cpu_to_le16(adapter->sp.sp_stabletime);
		sp->calcontrol = (u8) adapter->sp.sp_calcontrol;
		sp->externalsleepclk = (u8) adapter->sp.sp_extsleepclk;
		sp->reserved = cpu_to_le16(adapter->sp.sp_reserved);
	}

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_set_wep(wlan_private * priv,
                                   struct cmd_ds_command *cmd,
                                   u32 cmd_act,
                                   void * pdata_buf)
{
	struct cmd_ds_802_11_set_wep *wep = &cmd->params.wep;
	wlan_adapter *adapter = priv->adapter;
	int ret = 0;
	struct assoc_request * assoc_req = pdata_buf;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_SET_WEP);
	cmd->size = cpu_to_le16(sizeof(*wep) + S_DS_GEN);

	if (cmd_act == CMD_ACT_ADD) {
		int i;

		if (!assoc_req) {
			lbs_deb_cmd("Invalid association request!");
			ret = -1;
			goto done;
		}

		wep->action = cpu_to_le16(CMD_ACT_ADD);

		/* default tx key index */
		wep->keyindex = cpu_to_le16((u16)(assoc_req->wep_tx_keyidx &
						  (u32)CMD_WEP_KEY_INDEX_MASK));

		/* Copy key types and material to host command structure */
		for (i = 0; i < 4; i++) {
			struct enc_key * pkey = &assoc_req->wep_keys[i];

			switch (pkey->len) {
			case KEY_LEN_WEP_40:
				wep->keytype[i] = CMD_TYPE_WEP_40_BIT;
				memmove(&wep->keymaterial[i], pkey->key,
				        pkey->len);
				lbs_deb_cmd("SET_WEP: add key %d (40 bit)\n", i);
				break;
			case KEY_LEN_WEP_104:
				wep->keytype[i] = CMD_TYPE_WEP_104_BIT;
				memmove(&wep->keymaterial[i], pkey->key,
				        pkey->len);
				lbs_deb_cmd("SET_WEP: add key %d (104 bit)\n", i);
				break;
			case 0:
				break;
			default:
				lbs_deb_cmd("SET_WEP: invalid key %d, length %d\n",
				       i, pkey->len);
				ret = -1;
				goto done;
				break;
			}
		}
	} else if (cmd_act == CMD_ACT_REMOVE) {
		/* ACT_REMOVE clears _all_ WEP keys */
		wep->action = cpu_to_le16(CMD_ACT_REMOVE);

		/* default tx key index */
		wep->keyindex = cpu_to_le16((u16)(adapter->wep_tx_keyidx &
						  (u32)CMD_WEP_KEY_INDEX_MASK));
		lbs_deb_cmd("SET_WEP: remove key %d\n", adapter->wep_tx_keyidx);
	}

	ret = 0;

done:
	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
	return ret;
}

static int wlan_cmd_802_11_enable_rsn(wlan_private * priv,
				      struct cmd_ds_command *cmd,
				      u16 cmd_action,
				      void * pdata_buf)
{
	struct cmd_ds_802_11_enable_rsn *penableRSN = &cmd->params.enbrsn;
	u32 * enable = pdata_buf;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_ENABLE_RSN);
	cmd->size = cpu_to_le16(sizeof(*penableRSN) + S_DS_GEN);
	penableRSN->action = cpu_to_le16(cmd_action);

	if (cmd_action == CMD_ACT_SET) {
		if (*enable)
			penableRSN->enable = cpu_to_le16(CMD_ENABLE_RSN);
		else
			penableRSN->enable = cpu_to_le16(CMD_DISABLE_RSN);
		lbs_deb_cmd("ENABLE_RSN: %d\n", *enable);
	}

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}


static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
                            struct enc_key * pkey)
{
	lbs_deb_enter(LBS_DEB_CMD);

	if (pkey->flags & KEY_INFO_WPA_ENABLED) {
		pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_ENABLED);
	}
	if (pkey->flags & KEY_INFO_WPA_UNICAST) {
		pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_UNICAST);
	}
	if (pkey->flags & KEY_INFO_WPA_MCAST) {
		pkeyparamset->keyinfo |= cpu_to_le16(KEY_INFO_WPA_MCAST);
	}

	pkeyparamset->type = cpu_to_le16(TLV_TYPE_KEY_MATERIAL);
	pkeyparamset->keytypeid = cpu_to_le16(pkey->type);
	pkeyparamset->keylen = cpu_to_le16(pkey->len);
	memcpy(pkeyparamset->key, pkey->key, pkey->len);
	pkeyparamset->length = cpu_to_le16(  sizeof(pkeyparamset->keytypeid)
	                                        + sizeof(pkeyparamset->keyinfo)
	                                        + sizeof(pkeyparamset->keylen)
	                                        + sizeof(pkeyparamset->key));
	lbs_deb_leave(LBS_DEB_CMD);
}

static int wlan_cmd_802_11_key_material(wlan_private * priv,
					struct cmd_ds_command *cmd,
					u16 cmd_action,
					u32 cmd_oid, void *pdata_buf)
{
	struct cmd_ds_802_11_key_material *pkeymaterial =
	    &cmd->params.keymaterial;
	struct assoc_request * assoc_req = pdata_buf;
	int ret = 0;
	int index = 0;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_KEY_MATERIAL);
	pkeymaterial->action = cpu_to_le16(cmd_action);

	if (cmd_action == CMD_ACT_GET) {
		cmd->size = cpu_to_le16(S_DS_GEN + sizeof (pkeymaterial->action));
		ret = 0;
		goto done;
	}

	memset(&pkeymaterial->keyParamSet, 0, sizeof(pkeymaterial->keyParamSet));

	if (test_bit(ASSOC_FLAG_WPA_UCAST_KEY, &assoc_req->flags)) {
		set_one_wpa_key(&pkeymaterial->keyParamSet[index],
		                &assoc_req->wpa_unicast_key);
		index++;
	}

	if (test_bit(ASSOC_FLAG_WPA_MCAST_KEY, &assoc_req->flags)) {
		set_one_wpa_key(&pkeymaterial->keyParamSet[index],
		                &assoc_req->wpa_mcast_key);
		index++;
	}

	cmd->size = cpu_to_le16(  S_DS_GEN
	                        + sizeof (pkeymaterial->action)
	                        + (index * sizeof(struct MrvlIEtype_keyParamSet)));

	ret = 0;

done:
	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
	return ret;
}

static int wlan_cmd_802_11_reset(wlan_private * priv,
				 struct cmd_ds_command *cmd, int cmd_action)
{
	struct cmd_ds_802_11_reset *reset = &cmd->params.reset;

	lbs_deb_enter(LBS_DEB_CMD);

	cmd->command = cpu_to_le16(CMD_802_11_RESET);
	cmd->size = cpu_to_le16(sizeof(struct cmd_ds_802_11_reset) + S_DS_GEN);
	reset->action = cpu_to_le16(cmd_action);

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_get_log(wlan_private * priv,
				   struct cmd_ds_command *cmd)
{
	lbs_deb_enter(LBS_DEB_CMD);
	cmd->command = cpu_to_le16(CMD_802_11_GET_LOG);
	cmd->size =
		cpu_to_le16(sizeof(struct cmd_ds_802_11_get_log) + S_DS_GEN);

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_get_stat(wlan_private * priv,
				    struct cmd_ds_command *cmd)
{
	lbs_deb_enter(LBS_DEB_CMD);
	cmd->command = cpu_to_le16(CMD_802_11_GET_STAT);
	cmd->size =
	    cpu_to_le16(sizeof(struct cmd_ds_802_11_get_stat) + S_DS_GEN);

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_snmp_mib(wlan_private * priv,
				    struct cmd_ds_command *cmd,
				    int cmd_action,
				    int cmd_oid, void *pdata_buf)
{
	struct cmd_ds_802_11_snmp_mib *pSNMPMIB = &cmd->params.smib;
	wlan_adapter *adapter = priv->adapter;
	u8 ucTemp;

	lbs_deb_enter(LBS_DEB_CMD);

	lbs_deb_cmd("SNMP_CMD: cmd_oid = 0x%x\n", cmd_oid);

	cmd->command = cpu_to_le16(CMD_802_11_SNMP_MIB);
	cmd->size = cpu_to_le16(sizeof(*pSNMPMIB) + S_DS_GEN);

	switch (cmd_oid) {
	case OID_802_11_INFRASTRUCTURE_MODE:
	{
		u8 mode = (u8) (size_t) pdata_buf;
		pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
		pSNMPMIB->oid = cpu_to_le16((u16) DESIRED_BSSTYPE_I);
		pSNMPMIB->bufsize = sizeof(u8);
		if (mode == IW_MODE_ADHOC) {
			ucTemp = SNMP_MIB_VALUE_ADHOC;
		} else {
			/* Infra and Auto modes */
			ucTemp = SNMP_MIB_VALUE_INFRA;
		}

		memmove(pSNMPMIB->value, &ucTemp, sizeof(u8));

		break;
	}

	case OID_802_11D_ENABLE:
		{
			u32 ulTemp;

			pSNMPMIB->oid = cpu_to_le16((u16) DOT11D_I);

			if (cmd_action == CMD_ACT_SET) {
				pSNMPMIB->querytype = CMD_ACT_SET;
				pSNMPMIB->bufsize = sizeof(u16);
				ulTemp = *(u32 *)pdata_buf;
				*((__le16 *)(pSNMPMIB->value)) =
				    cpu_to_le16((u16) ulTemp);
			}
			break;
		}

	case OID_802_11_FRAGMENTATION_THRESHOLD:
		{
			u32 ulTemp;

			pSNMPMIB->oid = cpu_to_le16((u16) FRAGTHRESH_I);

			if (cmd_action == CMD_ACT_GET) {
				pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
			} else if (cmd_action == CMD_ACT_SET) {
				pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
				pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
				ulTemp = *((u32 *) pdata_buf);
				*((__le16 *)(pSNMPMIB->value)) =
				    cpu_to_le16((u16) ulTemp);

			}

			break;
		}

	case OID_802_11_RTS_THRESHOLD:
		{

			u32 ulTemp;
			pSNMPMIB->oid = le16_to_cpu((u16) RTSTHRESH_I);

			if (cmd_action == CMD_ACT_GET) {
				pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
			} else if (cmd_action == CMD_ACT_SET) {
				pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
				pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
				ulTemp = *((u32 *)pdata_buf);
				*(__le16 *)(pSNMPMIB->value) =
				    cpu_to_le16((u16) ulTemp);

			}
			break;
		}
	case OID_802_11_TX_RETRYCOUNT:
		pSNMPMIB->oid = cpu_to_le16((u16) SHORT_RETRYLIM_I);

		if (cmd_action == CMD_ACT_GET) {
			pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_GET);
		} else if (cmd_action == CMD_ACT_SET) {
			pSNMPMIB->querytype = cpu_to_le16(CMD_ACT_SET);
			pSNMPMIB->bufsize = cpu_to_le16(sizeof(u16));
			*((__le16 *)(pSNMPMIB->value)) =
			    cpu_to_le16((u16) adapter->txretrycount);
		}

		break;
	default:
		break;
	}

	lbs_deb_cmd(
	       "SNMP_CMD: command=0x%x, size=0x%x, seqnum=0x%x, result=0x%x\n",
	       le16_to_cpu(cmd->command), le16_to_cpu(cmd->size),
	       le16_to_cpu(cmd->seqnum), le16_to_cpu(cmd->result));

	lbs_deb_cmd(
	       "SNMP_CMD: action 0x%x, oid 0x%x, oidsize 0x%x, value 0x%x\n",
	       le16_to_cpu(pSNMPMIB->querytype), le16_to_cpu(pSNMPMIB->oid),
	       le16_to_cpu(pSNMPMIB->bufsize),
	       le16_to_cpu(*(__le16 *) pSNMPMIB->value));

	lbs_deb_leave(LBS_DEB_CMD);
	return 0;
}

static int wlan_cmd_802_11_radio_control(wlan_private * priv,
					 struct cmd_ds_command *cmd,