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iwlwifi: mvm: add MCC update FW API 

The new API sets an MCC (mobile country code) to FW and receives a
channel structure to be used as a basis for an updated regulatory domain.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Arik Nemtsov 2014-03-04 19:54:12 +02:00 committed by Emmanuel Grumbach
parent 3c2d24a914
commit dcaf9f5ecb
5 changed files with 144 additions and 0 deletions
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2
drivers/net/wireless/iwlwifi/iwl-debug.h
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@ -157,6 +157,7 @@ do { \
/* 0x0000F000 - 0x00001000 */
#define IWL_DL_ASSOC 0x00001000
#define IWL_DL_DROP 0x00002000
#define IWL_DL_LAR 0x00004000
#define IWL_DL_COEX 0x00008000
/* 0x000F0000 - 0x00010000 */
#define IWL_DL_FW 0x00010000
@ -219,5 +220,6 @@ do { \
#define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a)
#define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a)
#define IWL_DEBUG_RPM(p, f, a...) IWL_DEBUG(p, IWL_DL_RPM, f, ## a)
#define IWL_DEBUG_LAR(p, f, a...) IWL_DEBUG(p, IWL_DL_LAR, f, ## a)
#endif

48
drivers/net/wireless/iwlwifi/mvm/fw-api.h
View File

@ -212,6 +212,9 @@ enum {
REPLY_RX_MPDU_CMD = 0xc1,
BA_NOTIF = 0xc5,
/* Location Aware Regulatory */
MCC_UPDATE_CMD = 0xc8,
MARKER_CMD = 0xcb,
/* BT Coex */
@ -1674,4 +1677,49 @@ struct iwl_shared_mem_cfg {
__le32 page_buff_size;
} __packed; /* SHARED_MEM_ALLOC_API_S_VER_1 */
/***********************************
* Location Aware Regulatory (LAR) API - MCC updates
***********************************/
/**
* struct iwl_mcc_update_cmd - Request the device to update geographic
* regulatory profile according to the given MCC (Mobile Country Code).
* The MCC is two letter-code, ascii upper case[A-Z] or '00' for world domain.
* 'ZZ' MCC will be used to switch to NVM default profile; in this case, the
* MCC in the cmd response will be the relevant MCC in the NVM.
* @mcc: given mobile country code
* @reserved: reserved for alignment
*/
struct iwl_mcc_update_cmd {
__le16 mcc;
__le16 reserved;
} __packed; /* LAR_UPDATE_MCC_CMD_API_S */
/**
* iwl_mcc_update_resp - response to MCC_UPDATE_CMD.
* Contains the new channel control profile map, if changed, and the new MCC
* (mobile country code).
* The new MCC may be different than what was requested in MCC_UPDATE_CMD.
* @status: 0 for success, 1 no change in channel profile, 2 invalid input.
* @mcc: the new applied MCC
* @n_channels: number of channels in @channels_data (may be 14, 39, 50 or 51
* channels, depending on platform)
* @channels: channel control data map, DWORD for each channel. Only the first
* 16bits are used.
*/
struct iwl_mcc_update_resp {
__le32 status;
__le16 mcc;
__le16 reserved;
__le32 n_channels;
__le32 channels[0];
} __packed; /* LAR_UPDATE_MCC_CMD_RESP_S */
enum iwl_mcc_update_status {
MCC_RESP_NEW_CHAN_PROFILE,
MCC_RESP_SAME_CHAN_PROFILE,
MCC_RESP_INVALID,
MCC_RESP_NVM_DISABLED,
};
#endif /* __fw_api_h__ */

9
drivers/net/wireless/iwlwifi/mvm/mvm.h
View File

@ -910,6 +910,11 @@ static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm)
(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT);
}
static inline bool iwl_mvm_is_lar_supported(struct iwl_mvm *mvm)
{
return mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_LAR_SUPPORT;
}
static inline bool iwl_mvm_is_scd_cfg_supported(struct iwl_mvm *mvm)
{
return mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_SCD_CFG;
@ -1389,6 +1394,10 @@ void iwl_mvm_tt_exit(struct iwl_mvm *mvm);
void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state);
int iwl_mvm_get_temp(struct iwl_mvm *mvm);
/* Location Aware Regulatory */
struct iwl_mcc_update_resp *
iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2);
/* smart fifo */
int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
bool added_vif);

84
drivers/net/wireless/iwlwifi/mvm/nvm.c
View File

@ -570,3 +570,87 @@ int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic)
return 0;
}
struct iwl_mcc_update_resp *
iwl_mvm_update_mcc(struct iwl_mvm *mvm, const char *alpha2)
{
struct iwl_mcc_update_cmd mcc_update_cmd = {
.mcc = cpu_to_le16(alpha2[0] << 8 | alpha2[1]),
};
struct iwl_mcc_update_resp *mcc_resp, *resp_cp = NULL;
struct iwl_rx_packet *pkt;
struct iwl_host_cmd cmd = {
.id = MCC_UPDATE_CMD,
.flags = CMD_WANT_SKB,
.data = { &mcc_update_cmd },
};
int ret;
u32 status;
int resp_len, n_channels;
u16 mcc;
if (WARN_ON_ONCE(!iwl_mvm_is_lar_supported(mvm)))
return ERR_PTR(-EOPNOTSUPP);
cmd.len[0] = sizeof(struct iwl_mcc_update_cmd);
IWL_DEBUG_LAR(mvm, "send MCC update to FW with '%c%c'\n",
alpha2[0], alpha2[1]);
ret = iwl_mvm_send_cmd(mvm, &cmd);
if (ret)
return ERR_PTR(ret);
pkt = cmd.resp_pkt;
if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
IWL_ERR(mvm, "Bad return from MCC_UPDATE_COMMAND (0x%08X)\n",
pkt->hdr.flags);
ret = -EIO;
goto exit;
}
/* Extract MCC response */
mcc_resp = (void *)pkt->data;
status = le32_to_cpu(mcc_resp->status);
if (status == MCC_RESP_INVALID) {
IWL_ERR(mvm,
"FW ERROR: MCC update with invalid parameter '%c%c'\n",
alpha2[0], alpha2[1]);
ret = -EINVAL;
goto exit;
} else if (status == MCC_RESP_NVM_DISABLED) {
ret = 0;
/* resp_cp will be NULL */
goto exit;
}
mcc = le16_to_cpu(mcc_resp->mcc);
/* W/A for a FW/NVM issue - returns 0x00 for the world domain */
if (mcc == 0) {
mcc = 0x3030; /* "00" - world */
mcc_resp->mcc = cpu_to_le16(mcc);
}
n_channels = __le32_to_cpu(mcc_resp->n_channels);
IWL_DEBUG_LAR(mvm,
"MCC response status: 0x%x. new MCC: 0x%x ('%c%c') change: %d n_chans: %d\n",
status, mcc, mcc >> 8, mcc & 0xff,
!!(status == MCC_RESP_SAME_CHAN_PROFILE), n_channels);
resp_len = sizeof(*mcc_resp) + n_channels * sizeof(__le32);
resp_cp = kmemdup(mcc_resp, resp_len, GFP_KERNEL);
if (!resp_cp) {
ret = -ENOMEM;
goto exit;
}
ret = 0;
exit:
iwl_free_resp(&cmd);
if (ret)
return ERR_PTR(ret);
return resp_cp;
}

1
drivers/net/wireless/iwlwifi/mvm/ops.c
View File

@ -358,6 +358,7 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
CMD(TDLS_CHANNEL_SWITCH_CMD),
CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
CMD(TDLS_CONFIG_CMD),
CMD(MCC_UPDATE_CMD),
};
#undef CMD