static void ar9003_mci_send_coex_bt_status_query(struct ath_hw *ah,
bool wait_done, u8 query_type)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
bool query_btinfo;
if (mci->bt_state == MCI_BT_SLEEP)
return;
query_btinfo = !!(query_type & (MCI_GPM_COEX_QUERY_BT_ALL_INFO |
MCI_GPM_COEX_QUERY_BT_TOPOLOGY));
MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_STATUS_QUERY);
*(((u8 *)payload) + MCI_GPM_COEX_B_BT_BITMAP) = query_type;
/*
* If bt_status_query message is not sent successfully,
* then need_flush_btinfo should be set again.
*/
if (!ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16,
wait_done, true)) {
if (query_btinfo)
mci->need_flush_btinfo = true;
}
if (query_btinfo)
mci->query_bt = false;
}
static void ar9003_mci_send_lna_take(struct ath_hw *ah, bool wait_done)
{
u32 payload = 0x70000000;
ar9003_mci_send_message(ah, MCI_LNA_TAKE, 0, &payload, 1,
wait_done, false);
}
bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
ar9003_mci_2g5g_changed(ah, IS_CHAN_2GHZ(chan));
if (mci_hw->bt_state != MCI_BT_CAL_START)
return false;
mci_hw->bt_state = MCI_BT_CAL;
ar9003_mci_disable_interrupt(ah);
MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload,
16, true, false);
if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_DONE,
0, 25000))
ath_dbg(common, MCI, "MCI BT_CAL_DONE received\n");
else
ath_dbg(common, MCI,
"MCI BT_CAL_DONE not received\n");
mci_hw->bt_state = MCI_BT_AWAKE;
ar9003_mci_enable_interrupt(ah);
return true;
}
static void ar9003_mci_send_lna_transfer(struct ath_hw *ah, bool wait_done)
{
u32 payload = 0x00000000;
ar9003_mci_send_message(ah, MCI_LNA_TRANS, 0, &payload, 1,
wait_done, false);
}
static void ar9003_mci_remote_reset(struct ath_hw *ah, bool wait_done)
{
u32 payload[4] = { 0xffffffff, 0xffffffff, 0xffffffff, 0xffffff00};
ar9003_mci_send_message(ah, MCI_REMOTE_RESET, 0, payload, 16,
wait_done, false);
udelay(5);
}
void ar9003_mci_init_cal_done(struct ath_hw *ah)
{
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 pld[4] = {0, 0, 0, 0};
if ((mci_hw->bt_state != MCI_BT_AWAKE) ||
(mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL))
return;
MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_DONE);
pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_done++;
ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
}
static void ar9003_mci_send_coex_version_response(struct ath_hw *ah,
bool wait_done)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_VERSION_RESPONSE);
*(((u8 *)payload) + MCI_GPM_COEX_B_MAJOR_VERSION) =
mci->wlan_ver_major;
*(((u8 *)payload) + MCI_GPM_COEX_B_MINOR_VERSION) =
mci->wlan_ver_minor;
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
}
static void ar9003_mci_send_coex_version_query(struct ath_hw *ah,
bool wait_done)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
if (mci->bt_version_known ||
(mci->bt_state == MCI_BT_SLEEP))
return;
MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_VERSION_QUERY);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
}
static void ar9003_mci_send_coex_wlan_channels(struct ath_hw *ah,
bool wait_done)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 *payload = &mci->wlan_channels[0];
if (!mci->wlan_channels_update ||
(mci->bt_state == MCI_BT_SLEEP))
return;
MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_WLAN_CHANNELS);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
MCI_GPM_SET_TYPE_OPCODE(payload, 0xff, 0xff);
}
static bool ar9003_mci_send_coex_bt_flags(struct ath_hw *ah, bool wait_done,
u8 opcode, u32 bt_flags)
{
u32 pld[4] = {0, 0, 0, 0};
MCI_GPM_SET_TYPE_OPCODE(pld, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_BT_UPDATE_FLAGS);
*(((u8 *)pld) + MCI_GPM_COEX_B_BT_FLAGS_OP) = opcode;
*(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 0) = bt_flags & 0xFF;
*(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 1) = (bt_flags >> 8) & 0xFF;
*(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 2) = (bt_flags >> 16) & 0xFF;
*(((u8 *)pld) + MCI_GPM_COEX_W_BT_FLAGS + 3) = (bt_flags >> 24) & 0xFF;
return ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16,
wait_done, true);
}
bool ar9003_mci_start_reset(struct ath_hw *ah, struct ath9k_channel *chan)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
ar9003_mci_2g5g_changed(ah, IS_CHAN_2GHZ(chan));
if (mci_hw->bt_state != MCI_BT_CAL_START)
return false;
mci_hw->bt_state = MCI_BT_CAL;
/*
* MCI FIX: disable mci interrupt here. This is to avoid
* SW_MSG_DONE or RX_MSG bits to trigger MCI_INT and
* lead to mci_intr reentry.
*/
ar9003_mci_disable_interrupt(ah);
MCI_GPM_SET_CAL_TYPE(payload, MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload,
16, true, false);
/* Wait BT calibration to be completed for 25ms */
if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_DONE,
0, 25000))
ath_dbg(common, MCI, "MCI BT_CAL_DONE received\n");
else
ath_dbg(common, MCI,
"MCI BT_CAL_DONE not received\n");
mci_hw->bt_state = MCI_BT_AWAKE;
/* MCI FIX: enable mci interrupt here */
ar9003_mci_enable_interrupt(ah);
return true;
}
static void ar9003_mci_send_coex_halt_bt_gpm(struct ath_hw *ah, bool halt,
bool wait_done)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 payload[4] = {0, 0, 0, 0};
MCI_GPM_SET_TYPE_OPCODE(payload, MCI_GPM_COEX_AGENT,
MCI_GPM_COEX_HALT_BT_GPM);
if (halt) {
mci->query_bt = true;
/* Send next unhalt no matter halt sent or not */
mci->unhalt_bt_gpm = true;
mci->need_flush_btinfo = true;
*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) =
MCI_GPM_COEX_BT_GPM_HALT;
} else
*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) =
MCI_GPM_COEX_BT_GPM_UNHALT;
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16, wait_done, true);
}
void ar9003_mci_init_cal_req(struct ath_hw *ah, bool *is_reusable)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci_hw = &ah->btcoex_hw.mci;
u32 pld[4] = {0, 0, 0, 0};
if ((mci_hw->bt_state != MCI_BT_AWAKE) ||
(mci_hw->config & ATH_MCI_CONFIG_DISABLE_MCI_CAL))
return;
MCI_GPM_SET_CAL_TYPE(pld, MCI_GPM_WLAN_CAL_REQ);
pld[MCI_GPM_WLAN_CAL_W_SEQUENCE] = mci_hw->wlan_cal_seq++;
ar9003_mci_send_message(ah, MCI_GPM, 0, pld, 16, true, false);
if (ar9003_mci_wait_for_gpm(ah, MCI_GPM_BT_CAL_GRANT, 0, 50000)) {
ath_dbg(common, MCI, "MCI BT_CAL_GRANT received\n");
} else {
*is_reusable = false;
ath_dbg(common, MCI, "MCI BT_CAL_GRANT not received\n");
}
}
static u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type,
u8 gpm_opcode, int time_out)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 *p_gpm = NULL, mismatch = 0, more_data;
u32 offset;
u8 recv_type = 0, recv_opcode = 0;
bool b_is_bt_cal_done = (gpm_type == MCI_GPM_BT_CAL_DONE);
more_data = time_out ? MCI_GPM_NOMORE : MCI_GPM_MORE;
while (time_out > 0) {
if (p_gpm) {
MCI_GPM_RECYCLE(p_gpm);
p_gpm = NULL;
}
if (more_data != MCI_GPM_MORE)
time_out = ar9003_mci_wait_for_interrupt(ah,
AR_MCI_INTERRUPT_RX_MSG_RAW,
AR_MCI_INTERRUPT_RX_MSG_GPM,
time_out);
if (!time_out)
break;
offset = ar9003_mci_get_next_gpm_offset(ah, false, &more_data);
if (offset == MCI_GPM_INVALID)
continue;
p_gpm = (u32 *) (mci->gpm_buf + offset);
recv_type = MCI_GPM_TYPE(p_gpm);
recv_opcode = MCI_GPM_OPCODE(p_gpm);
if (MCI_GPM_IS_CAL_TYPE(recv_type)) {
if (recv_type == gpm_type) {
if ((gpm_type == MCI_GPM_BT_CAL_DONE) &&
!b_is_bt_cal_done) {
gpm_type = MCI_GPM_BT_CAL_GRANT;
continue;
}
break;
}
} else if ((recv_type == gpm_type) &&
(recv_opcode == gpm_opcode))
break;
/*
* check if it's cal_grant
*
* When we're waiting for cal_grant in reset routine,
* it's possible that BT sends out cal_request at the
* same time. Since BT's calibration doesn't happen
* that often, we'll let BT completes calibration then
* we continue to wait for cal_grant from BT.
* Orginal: Wait BT_CAL_GRANT.
* New: Receive BT_CAL_REQ -> send WLAN_CAL_GRANT->wait
* BT_CAL_DONE -> Wait BT_CAL_GRANT.
*/
if ((gpm_type == MCI_GPM_BT_CAL_GRANT) &&
(recv_type == MCI_GPM_BT_CAL_REQ)) {
u32 payload[4] = {0, 0, 0, 0};
gpm_type = MCI_GPM_BT_CAL_DONE;
MCI_GPM_SET_CAL_TYPE(payload,
MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16,
false, false);
continue;
} else {
ath_dbg(common, MCI, "MCI GPM subtype not match 0x%x\n",
*(p_gpm + 1));
mismatch++;
ar9003_mci_process_gpm_extra(ah, recv_type,
recv_opcode, p_gpm);
}
}
if (p_gpm) {
MCI_GPM_RECYCLE(p_gpm);
p_gpm = NULL;
}
if (time_out <= 0)
time_out = 0;
while (more_data == MCI_GPM_MORE) {
offset = ar9003_mci_get_next_gpm_offset(ah, false, &more_data);
if (offset == MCI_GPM_INVALID)
break;
p_gpm = (u32 *) (mci->gpm_buf + offset);
recv_type = MCI_GPM_TYPE(p_gpm);
recv_opcode = MCI_GPM_OPCODE(p_gpm);
if (!MCI_GPM_IS_CAL_TYPE(recv_type))
ar9003_mci_process_gpm_extra(ah, recv_type,
recv_opcode, p_gpm);
MCI_GPM_RECYCLE(p_gpm);
}
return time_out;
}
static void ar9003_mci_send_sys_sleeping(struct ath_hw *ah, bool wait_done)
{
ar9003_mci_send_message(ah, MCI_SYS_SLEEPING,
MCI_FLAG_DISABLE_TIMESTAMP,
NULL, 0, wait_done, false);
}
static void ar9003_mci_send_req_wake(struct ath_hw *ah, bool wait_done)
{
ar9003_mci_send_message(ah, MCI_REQ_WAKE, MCI_FLAG_DISABLE_TIMESTAMP,
NULL, 0, wait_done, false);
udelay(5);
}
static u32 ar9003_mci_wait_for_gpm(struct ath_hw *ah, u8 gpm_type,
u8 gpm_opcode, int time_out)
{
struct ath_common *common = ath9k_hw_common(ah);
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 *p_gpm = NULL, mismatch = 0, more_data;
u32 offset;
u8 recv_type = 0, recv_opcode = 0;
bool b_is_bt_cal_done = (gpm_type == MCI_GPM_BT_CAL_DONE);
more_data = time_out ? MCI_GPM_NOMORE : MCI_GPM_MORE;
while (time_out > 0) {
if (p_gpm) {
MCI_GPM_RECYCLE(p_gpm);
p_gpm = NULL;
}
if (more_data != MCI_GPM_MORE)
time_out = ar9003_mci_wait_for_interrupt(ah,
AR_MCI_INTERRUPT_RX_MSG_RAW,
AR_MCI_INTERRUPT_RX_MSG_GPM,
time_out);
if (!time_out)
break;
offset = ar9003_mci_state(ah, MCI_STATE_NEXT_GPM_OFFSET,
&more_data);
if (offset == MCI_GPM_INVALID)
continue;
p_gpm = (u32 *) (mci->gpm_buf + offset);
recv_type = MCI_GPM_TYPE(p_gpm);
recv_opcode = MCI_GPM_OPCODE(p_gpm);
if (MCI_GPM_IS_CAL_TYPE(recv_type)) {
if (recv_type == gpm_type) {
if ((gpm_type == MCI_GPM_BT_CAL_DONE) &&
!b_is_bt_cal_done) {
gpm_type = MCI_GPM_BT_CAL_GRANT;
continue;
}
break;
}
} else if ((recv_type == gpm_type) && (recv_opcode == gpm_opcode)) {
break;
}
if ((gpm_type == MCI_GPM_BT_CAL_GRANT) &&
(recv_type == MCI_GPM_BT_CAL_REQ)) {
u32 payload[4] = {0, 0, 0, 0};
gpm_type = MCI_GPM_BT_CAL_DONE;
MCI_GPM_SET_CAL_TYPE(payload,
MCI_GPM_WLAN_CAL_GRANT);
ar9003_mci_send_message(ah, MCI_GPM, 0, payload, 16,
false, false);
continue;
} else {
ath_dbg(common, MCI, "MCI GPM subtype not match 0x%x\n",
*(p_gpm + 1));
mismatch++;
ar9003_mci_process_gpm_extra(ah, recv_type,
recv_opcode, p_gpm);
}
}
if (p_gpm) {
MCI_GPM_RECYCLE(p_gpm);
p_gpm = NULL;
}
if (time_out <= 0)
time_out = 0;
while (more_data == MCI_GPM_MORE) {
offset = ar9003_mci_state(ah, MCI_STATE_NEXT_GPM_OFFSET,
&more_data);
if (offset == MCI_GPM_INVALID)
break;
p_gpm = (u32 *) (mci->gpm_buf + offset);
recv_type = MCI_GPM_TYPE(p_gpm);
recv_opcode = MCI_GPM_OPCODE(p_gpm);
if (!MCI_GPM_IS_CAL_TYPE(recv_type))
ar9003_mci_process_gpm_extra(ah, recv_type,
recv_opcode, p_gpm);
MCI_GPM_RECYCLE(p_gpm);
}
return time_out;
}
