static void ar9003_mci_queue_unsent_gpm(struct ath_hw *ah, u8 header,
u32 *payload, bool queue)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u8 type, opcode;
/* check if the message is to be queued */
if (header != MCI_GPM)
return;
type = MCI_GPM_TYPE(payload);
opcode = MCI_GPM_OPCODE(payload);
if (type != MCI_GPM_COEX_AGENT)
return;
switch (opcode) {
case MCI_GPM_COEX_BT_UPDATE_FLAGS:
if (*(((u8 *)payload) + MCI_GPM_COEX_B_BT_FLAGS_OP) ==
MCI_GPM_COEX_BT_FLAGS_READ)
break;
mci->update_2g5g = queue;
break;
case MCI_GPM_COEX_WLAN_CHANNELS:
mci->wlan_channels_update = queue;
break;
case MCI_GPM_COEX_HALT_BT_GPM:
if (*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) ==
MCI_GPM_COEX_BT_GPM_UNHALT) {
mci->unhalt_bt_gpm = queue;
if (!queue)
mci->halted_bt_gpm = false;
}
if (*(((u8 *)payload) + MCI_GPM_COEX_B_HALT_STATE) ==
MCI_GPM_COEX_BT_GPM_HALT) {
mci->halted_bt_gpm = !queue;
}
break;
default:
break;
}
}
static bool ar9003_mci_is_gpm_valid(struct ath_hw *ah, u32 msg_index)
{
struct ath9k_hw_mci *mci = &ah->btcoex_hw.mci;
u32 *payload;
u32 recv_type, offset;
if (msg_index == MCI_GPM_INVALID)
return false;
offset = msg_index << 4;
payload = (u32 *)(mci->gpm_buf + offset);
recv_type = MCI_GPM_TYPE(payload);
if (recv_type == MCI_GPM_RSVD_PATTERN)
return false;
return true;
}
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 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;
}
