diff options
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-dev.h | 8 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-sv-open.c | 42 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-testmode.h | 14 |
3 files changed, 62 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h index b7e9fd1efb6..fa0827f4d24 100644 --- a/drivers/net/wireless/iwlwifi/iwl-dev.h +++ b/drivers/net/wireless/iwlwifi/iwl-dev.h @@ -1263,6 +1263,10 @@ struct iwl_trans { const struct iwl_trans_ops *ops; }; +/* uCode ownership */ +#define IWL_OWNERSHIP_DRIVER 0 +#define IWL_OWNERSHIP_TM 1 + struct iwl_priv { /* ieee device used by generic ieee processing code */ @@ -1351,6 +1355,10 @@ struct iwl_priv { int fw_index; /* firmware we're trying to load */ u32 ucode_ver; /* version of ucode, copy of iwl_ucode.ver */ + + /* uCode owner: default: IWL_OWNERSHIP_DRIVER */ + u8 ucode_owner; + struct fw_img ucode_rt; struct fw_img ucode_init; diff --git a/drivers/net/wireless/iwlwifi/iwl-sv-open.c b/drivers/net/wireless/iwlwifi/iwl-sv-open.c index 653b7870adc..ed9bd91ece7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-sv-open.c +++ b/drivers/net/wireless/iwlwifi/iwl-sv-open.c @@ -105,6 +105,7 @@ struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, + [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, }; /* @@ -587,6 +588,42 @@ static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb, return -ENOBUFS; } +/* + * This function handles the user application switch ucode ownership. + * + * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and + * decide who the current owner of the uCode + * + * If the current owner is OWNERSHIP_TM, then the only host command + * can deliver to uCode is from testmode, all the other host commands + * will dropped. + * + * default driver is the owner of uCode in normal operational mode + * + * @hw: ieee80211_hw object that represents the device + * @tb: gnl message fields from the user space + */ +static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) +{ + struct iwl_priv *priv = hw->priv; + u8 owner; + + if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { + IWL_DEBUG_INFO(priv, "Error finding ucode owner\n"); + return -ENOMSG; + } + + owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); + if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM)) + priv->ucode_owner = owner; + else { + IWL_DEBUG_INFO(priv, "Invalid owner\n"); + return -EINVAL; + } + return 0; +} + + /* The testmode gnl message handler that takes the gnl message from the * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then * invoke the corresponding handlers. @@ -656,6 +693,11 @@ int iwl_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) result = iwl_testmode_trace(hw, tb); break; + case IWL_TM_CMD_APP2DEV_OWNERSHIP: + IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); + result = iwl_testmode_ownership(hw, tb); + break; + default: IWL_DEBUG_INFO(priv, "Unknown testmode command\n"); result = -ENOSYS; diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.h b/drivers/net/wireless/iwlwifi/iwl-testmode.h index d825188e521..b980bda4b0f 100644 --- a/drivers/net/wireless/iwlwifi/iwl-testmode.h +++ b/drivers/net/wireless/iwlwifi/iwl-testmode.h @@ -103,6 +103,10 @@ * @IWL_TM_CMD_DEV2APP_EEPROM_RSP: * commands from kernel space to carry the eeprom response * to user application + * @IWL_TM_CMD_APP2DEV_OWNERSHIP: + * commands from user application to own change the ownership of the uCode + * if application has the ownership, the only host command from + * testmode will deliver to uCode. Default owner is driver */ enum iwl_tm_cmd_t { IWL_TM_CMD_APP2DEV_UCODE = 1, @@ -121,7 +125,8 @@ enum iwl_tm_cmd_t { IWL_TM_CMD_DEV2APP_SYNC_RSP = 14, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT = 15, IWL_TM_CMD_DEV2APP_EEPROM_RSP = 16, - IWL_TM_CMD_MAX = 17, + IWL_TM_CMD_APP2DEV_OWNERSHIP = 17, + IWL_TM_CMD_MAX = 18, }; /* @@ -187,6 +192,10 @@ enum iwl_tm_cmd_t { * The mandatory fields are: * IWL_TM_ATTR_FIXRATE for the fixed rate * + * @IWL_TM_ATTR_UCODE_OWNER: + * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_OWNERSHIP, + * The mandatory fields are: + * IWL_TM_ATTR_UCODE_OWNER for the new owner */ enum iwl_tm_attr_t { IWL_TM_ATTR_NOT_APPLICABLE = 0, @@ -203,7 +212,8 @@ enum iwl_tm_attr_t { IWL_TM_ATTR_TRACE_SIZE = 11, IWL_TM_ATTR_TRACE_DUMP = 12, IWL_TM_ATTR_FIXRATE = 13, - IWL_TM_ATTR_MAX = 14, + IWL_TM_ATTR_UCODE_OWNER = 14, + IWL_TM_ATTR_MAX = 15, }; /* uCode trace buffer */ |