static KAL_INT32 eemcs_cdev_rx_callback(struct sk_buff *skb, KAL_UINT32 private_data)
{
CCCI_BUFF_T *p_cccih = NULL;
KAL_UINT32 port_id;
DEBUG_LOG_FUNCTION_ENTRY;
if (skb){
p_cccih = (CCCI_BUFF_T *)skb->data;
DBGLOG(CHAR, DBG, "cdev_rx_callback: CCCI_H(0x%x)(0x%x)(0x%x)(0x%x)",\
p_cccih->data[0],p_cccih->data[1],p_cccih->channel, p_cccih->reserved );
}
port_id = ccci_ch_to_port(p_cccih->channel);
if(CDEV_OPEN == atomic_read(&eemcs_cdev_inst.cdev_node[PORT2IDX(port_id)].cdev_state)){
skb_queue_tail(&eemcs_cdev_inst.cdev_node[PORT2IDX(port_id)].rx_skb_list, skb); /* spin_lock_ireqsave inside, refering skbuff.c */
atomic_inc(&eemcs_cdev_inst.cdev_node[PORT2IDX(port_id)].rx_pkt_cnt); /* increase rx_pkt_cnt */
eemcs_update_statistics_number(0, port_id, RX, QUEUE, \
atomic_read(&eemcs_cdev_inst.cdev_node[PORT2IDX(port_id)].rx_pkt_cnt));
wake_up(&eemcs_cdev_inst.cdev_node[PORT2IDX(port_id)].rx_waitq); /* wake up rx_waitq */
}else{
if(port_id != CCCI_PORT_MD_LOG) /* If port_id == CCCI_PORT_MD_LOG, skip drop info (request by ST team)*/
{
DBGLOG(CHAR, ERR, "!!! PKT DROP when cdev(%d) close", port_id);
}
dev_kfree_skb(skb);
eemcs_ccci_release_rx_skb(port_id, 1, skb);
eemcs_update_statistics(0, port_id, RX, DROP);
}
DEBUG_LOG_FUNCTION_LEAVE;
return KAL_SUCCESS ;
}
static KAL_INT32 eemcs_ipc_rx_callback(struct sk_buff *skb, KAL_UINT32 private_data)
{
CCCI_BUFF_T *p_cccih = NULL;
KAL_UINT32 node_id;
IPC_MSGSVC_TASKMAP_T *id_map;
DEBUG_LOG_FUNCTION_ENTRY;
if (skb){
p_cccih = (CCCI_BUFF_T *)skb->data;
DBGLOG(IPCD,TRA,"%s: CCCI_H(0x%08X, 0x%08X, %02d, 0x%08X)", __FUNCTION__,\
p_cccih->data[0],p_cccih->data[1],p_cccih->channel, p_cccih->reserved);
}
#ifndef _EEMCS_IPCD_LB_UT_
/* Check IPC task id and extq_id */
if ((id_map=unify_AP_id_2_local_id(p_cccih->reserved))==NULL)
{
DBGLOG(IPCD,ERR,"Wrong AP Unify id (%#x)@RX.!!! PACKET DROP !!!\n",p_cccih->reserved);
dev_kfree_skb(skb);
return KAL_SUCCESS ;
}
node_id = id_map->task_id;
#else
node_id = 0;
#endif
if(IPCD_KERNEL == atomic_read(&eemcs_ipc_inst.ipc_node[node_id].dev_state)){
ipc_ilm_t* p_ilm = NULL;
skb_pull(skb, sizeof(CCCI_BUFF_T));
p_ilm = (ipc_ilm_t*)(skb->data);
p_ilm->dest_mod_id = p_cccih->reserved;
p_ilm->local_para_ptr = (local_para_struct *)p_ilm+1;
mtk_conn_md_bridge_send_msg((ipc_ilm_t*)(skb->data));
dev_kfree_skb(skb);
DBGLOG(IPCD, TRA, "IPC(%d) MT_CONN kernel rx callback", node_id);
}
else if(IPCD_OPEN == atomic_read(&eemcs_ipc_inst.ipc_node[node_id].dev_state)){
skb_queue_tail(&eemcs_ipc_inst.ipc_node[node_id].rx_skb_list, skb); /* spin_lock_ireqsave inside, refering skbuff.c */
atomic_inc(&eemcs_ipc_inst.ipc_node[node_id].rx_pkt_cnt); /* increase rx_pkt_cnt */
kill_fasync(&eemcs_ipc_inst.ipc_node[node_id].fasync, SIGIO, POLL_IN);
wake_up_poll(&eemcs_ipc_inst.ipc_node[node_id].rx_waitq,POLLIN); /* wake up rx_waitq */
}else{
DBGLOG(IPCD,ERR,"PKT DROP while ipc dev(%d) closed", node_id);
dev_kfree_skb(skb);
eemcs_update_statistics(0, eemcs_ipc_inst.eemcs_port_id, RX, DROP);
}
DEBUG_LOG_FUNCTION_LEAVE;
return KAL_SUCCESS ;
}
int ccci_df_to_ccci_callback(unsigned int rxq_no)
{
int ret, hc_ret;
bool is_xcmd = false;
struct sk_buff * skb = NULL;
CCCI_BUFF_T *ccci_h = NULL;
XBOOT_CMD *p_xcmd = NULL;
KAL_UINT32 port_id = CCCI_PORT_CTRL;
static KAL_UINT32 rx_err_cnt[CCCI_PORT_NUM_MAX] = {0};
#ifdef __EEMCS_EXPT_SUPPORT__
EEMCS_EXCEPTION_STATE mode = EEMCS_EX_INVALID;
#endif
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
KAL_INT16 channel, seq_num, assert_bit;
#endif
DEBUG_LOG_FUNCTION_ENTRY;
/* Step 1. read skb from swq */
skb = hif_dl_read_swq(rxq_no);
if(skb == NULL) {
DBGLOG(CCCI, DBG, "ccci_df_to_ccci_callback read NULL skb on %d", rxq_no);
if(is_exception_mode(&mode))
return KAL_FAIL;
else
KAL_ASSERT(NULL != skb);
}
/* Step 2. call handle complete */
hc_ret = hif_dl_pkt_handle_complete(rxq_no);
KAL_ASSERT(0 == hc_ret);
wake_lock_timeout(&eemcs_wake_lock, HZ/2); // Using 0.5s wake lock
/* Step 3. buffer type */
if (rxq_no == RXQ_Q0) {
//is_xcmd = is_xboot_command(skb);
p_xcmd = (XBOOT_CMD *)skb->data;
if (p_xcmd->magic == (KAL_UINT32)MAGIC_MD_CMD) {
if (check_device_state() >= EEMCS_MOLY_HS_P1) {
DBGLOG(CCCI, ERR, "can't recv xBoot cmd when EEMCS state=%d", check_device_state());
} else {
is_xcmd = true;
}
}
}
if (is_xcmd) {
/* Step 4. callback to xBoot */
CDEV_LOG(port_id, CCCI, INF, "XBOOT_CMD: 0x%08X, 0x%08X, 0x%08X, 0x%08X",\
p_xcmd->magic, p_xcmd->msg_id, p_xcmd->status, p_xcmd->reserved[0]);
ret = ccci_port_info[port_id].ch.rx_cb(skb, 0);
} else {
ccci_h = (CCCI_BUFF_T *)skb->data;
port_id = ccci_ch_to_port(ccci_h->channel);
CDEV_LOG(port_id, CCCI, INF, "CCCI_H: 0x%08X, 0x%08X, 0x%08X, 0x%08X",\
ccci_h->data[0],ccci_h->data[1],ccci_h->channel, ccci_h->reserved);
/*check rx sequence number for expect*/
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
channel = ccci_h->channel;
seq_num = ccci_h->seq_num;
assert_bit = ccci_h->assert_bit;
DBGLOG(CCCI, DBG, "Port%d CCCI_H: data[0]=0x%08X, data[1]=0x%08X, ch=0x%02X, seqno=0x%02X, assert=%d, resv=0x%08X(0x%08X, 0x%08X, 0x%08X)",\
port_id, ccci_h->data[0],ccci_h->data[1],ccci_h->channel, ccci_h->seq_num, \
ccci_h->assert_bit, ccci_h->reserved, channel, seq_num, assert_bit);
if(((seq_num - ccci_seqno_tbl[channel].seqno[RX]) & 0x7FFF) != 1 && assert_bit) {
DBGLOG(CCCI, ERR, "Port%d seqno out-of-order(0x%02X->0x%02X): data[0]=0x%08X, data[1]=0x%08X, ch=0x%02X, seqno=0x%02X, assert=%d, resv=0x%08X", \
port_id, seq_num, ccci_seqno_tbl[channel].seqno[RX], ccci_h->data[0], ccci_h->data[1], \
ccci_h->channel, ccci_h->seq_num, ccci_h->assert_bit, ccci_h->reserved);
hif_force_md_assert_swint();
}
ccci_seqno_tbl[channel].seqno[RX] = seq_num;
#endif
/* Step 4. callback to CCCI device */
if(NULL != ccci_port_info[port_id].ch.rx_cb){
#ifdef __EEMCS_EXPT_SUPPORT__
if(is_exception_mode(&mode))
{
if(!is_valid_exception_port(port_id, true))
{
ret = KAL_FAIL;
dev_kfree_skb(skb);
eemcs_ccci_release_rx_skb(port_id, 1, skb);
eemcs_expt_ccci_rx_drop(port_id);
DBGLOG(CCCI, ERR, "PKT DROP when PORT%d(rxq=%d) at md exception", \
port_id, rxq_no);
goto _end;
} else {
ret = ccci_port_info[port_id].ch.rx_cb(skb, 0);
}
}
else
#endif
{
ret = ccci_port_info[port_id].ch.rx_cb(skb, 0);
}
rx_err_cnt[port_id] = 0;
} else {
ret = KAL_FAIL;
dev_kfree_skb(skb);
eemcs_ccci_release_rx_skb(port_id, 1, skb);
if (rx_err_cnt[port_id]%20 == 0) {
DBGLOG(CCCI, ERR, "PKT DROP when PORT%d rx callback(ch=%d) not registered", \
port_id, ccci_h->channel);
}
rx_err_cnt[port_id]++;
eemcs_update_statistics(0, port_id, RX, DROP);
}
eemcs_update_statistics(0, port_id, RX, NORMAL);
}
_end:
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}
KAL_INT32 eemcs_ccci_UL_write_skb_to_swq(CCCI_CHANNEL_T chn, struct sk_buff *skb)
{
//KAL_DBGPRINT(KAL, DBG_INFO,("====> %s, chn: %d\n", KAL_FUNC_NAME, chn)) ;
//return mtlte_df_UL_write_skb_to_swq(df_ul_ccci_ch_to_q[chn], skb) ;
CCCI_BUFF_T *pccci_h = NULL;
KAL_UINT32 tx_queue_idx;
KAL_INT32 ret = KAL_SUCCESS;
#ifdef __EEMCS_EXPT_SUPPORT__
ccci_expt_port_cfg *expt_port_info;
EEMCS_EXCEPTION_STATE mode = EEMCS_EX_INVALID;
#endif
KAL_UINT32 channel = 0;
bool force_md_assert_flag = false;
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
KAL_UINT64 flag;
#endif
DEBUG_LOG_FUNCTION_ENTRY;
if(NULL != skb){
pccci_h = (CCCI_BUFF_T *)skb->data;
DBGLOG(CCCI, DBG, "[TX]CCCI_H: 0x%x, 0x%x, 0x%x, 0x%x",\
pccci_h->data[0], pccci_h->data[1], pccci_h->channel, pccci_h->reserved);
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
channel = (pccci_h->channel)|(pccci_h->seq_num <<16)|(pccci_h->assert_bit <<31);
#else
channel = pccci_h->channel;
#endif
if (channel == CCCI_FORCE_RESET_MODEM_CHANNEL)
force_md_assert_flag = true;
//1. seperate data and ack packet for ccmni0&1 UL
#if defined (TDD_DL_DROP_SOLUTION2)
if ((chn != CH_NET1_TX) && (chn != CH_NET2_TX) && !force_md_assert_flag) {
KAL_ASSERT(pccci_h->channel == chn);
}
#else
KAL_ASSERT(pccci_h->channel == chn);
#endif
//2. ccci channel check
KAL_ASSERT(pccci_h->channel < CH_NUM_MAX || force_md_assert_flag);
//3. fs packet check: the value of reserve is less than fs_buf_max_num=5
if ((pccci_h->channel == CH_FS_TX) && (pccci_h->reserved > 0x4)) {
int *pdata = skb->data;
DBGLOG(CCCI, ERR, "[TX]FS: 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x, 0x%08x",\
*pdata, *(pdata+1), *(pdata+2), *(pdata+3), *(pdata+4), *(pdata+5), *(pdata+6), *(pdata+7));
}
} else {
DBGLOG(CCCI, WAR, "CH%d write NULL skb to kick DF process!", chn);
}
if(force_md_assert_flag){
tx_queue_idx = 0;
hif_ul_write_swq(tx_queue_idx, skb);
}else{
#ifdef __EEMCS_EXPT_SUPPORT__
if(is_exception_mode(&mode))
{
if(is_valid_exception_tx_channel(chn))
{
/* add sequence number in ccci header */
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
if (likely(pccci_h)) {
spin_lock_irqsave(&ccci_seqno_tbl[pccci_h->channel].tx_seqno_lock, flag);
pccci_h->seq_num = ccci_seqno_tbl[pccci_h->channel].seqno[TX]++;
pccci_h->assert_bit = 1; //why assert_bit=1 instead of assert_bit=0????
spin_unlock_irqrestore(&ccci_seqno_tbl[pccci_h->channel].tx_seqno_lock, flag);
DBGLOG(CCCI, DBG, "[TX] CH%d:ch=%d seq_num=(0x%02X->0x%02X) assert_bit=%d channel=0x%08X", chn, \
pccci_h->channel, pccci_h->seq_num, ccci_seqno_tbl[pccci_h->channel].seqno[TX], \
pccci_h->assert_bit, channel);
}
#endif
expt_port_info = get_expt_port_info(ccci_ch_to_port(chn));
/* set exception TX Q*/
tx_queue_idx = expt_port_info->expt_txq_id;
hif_ul_write_swq(tx_queue_idx, skb);
atomic_dec(&ccci_port_info[ccci_ch_to_port(chn)].reserve_space);
atomic_dec(&ccci_tx_waitq[tx_queue_idx].reserve_space);
eemcs_update_statistics(0, ccci_ch_to_port(chn), TX, NORMAL);
} else {
DBGLOG(CCCI, WAR, "[EXPT] Invalid exception channel(%d)!", chn);
/*
* if KAL_FAIL is returned, skb is freed at device layer
* we don't have to free it here
*/
//eemcs_ex_ccci_tx_drop(ccci_ch_to_port(chn));
ret = KAL_FAIL;
}
}
else
#endif
{
/* add sequence number in ccci header */
#if defined (DBG_FEATURE_ADD_CCCI_SEQNO)
if (likely(pccci_h)) {
spin_lock_irqsave(&ccci_seqno_tbl[pccci_h->channel].tx_seqno_lock, flag);
pccci_h->seq_num = ccci_seqno_tbl[pccci_h->channel].seqno[TX]++;
pccci_h->assert_bit = 1; //why assert_bit=1 instead of assert_bit=0????
spin_unlock_irqrestore(&ccci_seqno_tbl[pccci_h->channel].tx_seqno_lock, flag);
DBGLOG(CCCI, DBG, "[TX] CH%d:ch=%d seq_num=(0x%02X->0x%02X) assert_bit=%d channel=0x%08X", chn, \
pccci_h->channel, pccci_h->seq_num, ccci_seqno_tbl[pccci_h->channel].seqno[TX], \
pccci_h->assert_bit, channel);
}
#endif
tx_queue_idx = ccci_port_info[ccci_ch_to_port(chn)].txq_id;
hif_ul_write_swq(tx_queue_idx, skb);
atomic_dec(&ccci_port_info[ccci_ch_to_port(chn)].reserve_space);
atomic_dec(&ccci_tx_waitq[tx_queue_idx].reserve_space);
eemcs_update_statistics(0, ccci_ch_to_port(chn), TX, NORMAL);
}
}
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}
KAL_INT32 eemcs_ccci_UL_write_skb_to_swq(CCCI_CHANNEL_T chn, struct sk_buff *skb)
{
//KAL_DBGPRINT(KAL, DBG_INFO,("====> %s, chn: %d\n", KAL_FUNC_NAME, chn)) ;
//return mtlte_df_UL_write_skb_to_swq(df_ul_ccci_ch_to_q[chn], skb) ;
CCCI_BUFF_T *pccci_h = NULL;
KAL_UINT32 tx_queue_idx;
KAL_INT32 ret = KAL_SUCCESS;
#ifdef __EEMCS_EXPT_SUPPORT__
ccci_expt_port_cfg *expt_port_info;
EEMCS_EXCEPTION_STATE mode = EEMCS_EX_INVALID;
#endif
DEBUG_LOG_FUNCTION_ENTRY;
if(NULL != skb){
pccci_h = (CCCI_BUFF_T *)skb->data;
DBGLOG(CCCI, DBG, "[TX]CCCI_H: 0x%x, 0x%x, 0x%x, 0x%x",\
pccci_h->data[0], pccci_h->data[1], pccci_h->channel, pccci_h->reserved);
KAL_ASSERT(pccci_h->channel == chn);
KAL_ASSERT(pccci_h->channel < CH_NUM_MAX || pccci_h->channel == CCCI_FORCE_RESET_MODEM_CHANNEL);
}else{
DBGLOG(CCCI, WAR, "CH%d write NULL skb to kick DF process!", chn);
}
if(pccci_h->channel == CCCI_FORCE_RESET_MODEM_CHANNEL){
tx_queue_idx = 0;
hif_ul_write_swq(tx_queue_idx, skb);
}else{
#ifdef __EEMCS_EXPT_SUPPORT__
if(is_exception_mode(&mode))
{
if(is_valid_exception_tx_channel(chn))
{
expt_port_info = get_expt_port_info(ccci_ch_to_port(chn));
/* set exception TX Q*/
tx_queue_idx = expt_port_info->expt_txq_id;
DBGLOG(CCCI, DBG, "[EXPT] ccci_UL_write_skb_to_swq write skb to DF: ch=%d, txq=%d", chn, tx_queue_idx);
hif_ul_write_swq(tx_queue_idx, skb);
atomic_dec(&ccci_port_info[ccci_ch_to_port(chn)].reserve_space);
atomic_dec(&ccci_tx_waitq[tx_queue_idx].reserve_space);
eemcs_update_statistics(0, ccci_ch_to_port(chn), TX, NORMAL);
}
else
{
DBGLOG(CCCI, WAR, "[EXPT] Invalid exception channel(%d)!", chn);
/*
* if KAL_FAIL is returned, skb is freed at device layer
* we don't have to free it here
*/
//eemcs_ex_ccci_tx_drop(ccci_ch_to_port(chn));
ret = KAL_FAIL;
}
}
else
#endif
{
tx_queue_idx = ccci_port_info[ccci_ch_to_port(chn)].txq_id;
hif_ul_write_swq(tx_queue_idx, skb);
atomic_dec(&ccci_port_info[ccci_ch_to_port(chn)].reserve_space);
atomic_dec(&ccci_tx_waitq[tx_queue_idx].reserve_space);
eemcs_update_statistics(0, ccci_ch_to_port(chn), TX, NORMAL);
}
}
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}
static ssize_t eemcs_ipc_read(struct file *fp, char *buf, size_t count, loff_t *ppos)
{
unsigned int flag;
eemcs_ipc_node_t *curr_node = (eemcs_ipc_node_t *)fp->private_data;
KAL_UINT8 node_id = curr_node->ipc_node_id;/* node_id */
KAL_UINT8 port_id = eemcs_ipc_inst.eemcs_port_id; /* port_id */
KAL_UINT32 rx_pkt_cnt, read_len;
struct sk_buff *rx_skb;
unsigned char *payload=NULL;
CCCI_BUFF_T *ccci_header;
int ret = 0;
DEBUG_LOG_FUNCTION_ENTRY;
flag=fp->f_flags;
DBGLOG(IPCD,TRA,"ipc_read: deivce iminor=%d, len=%d", node_id ,count);
if(!eemcs_device_ready())
{
DBGLOG(IPCD,ERR,"MD device not ready!");
ret= -EIO;
return ret;
}
/* Check receive pkt count */
rx_pkt_cnt = atomic_read(&curr_node->rx_pkt_cnt);
KAL_ASSERT(rx_pkt_cnt >= 0);
if(rx_pkt_cnt == 0){
if (flag&O_NONBLOCK)
{
ret=-EAGAIN;
DBGLOG(IPCD,TRA,"ipc_read: PORT%d for NONBLOCK",port_id);
goto _exit;
}
ret = wait_event_interruptible(curr_node->rx_waitq, atomic_read(&curr_node->rx_pkt_cnt) > 0);
if(ret)
{
ret = -EINTR;
DBGLOG(IPCD, ERR, "[RX]PORT%d read interrupt by syscall.signal(%lld)", port_id, \
*(long long *)current->pending.signal.sig);
goto _exit;
}
}
/*
* Cached memory from last read fail
*/
DBGLOG(IPCD,TRA,"ipc_read: dequeue from rx_skb_list, rx_pkt_cnt(%d)",rx_pkt_cnt);
rx_skb = skb_dequeue(&curr_node->rx_skb_list);
/* There should be rx_skb in the list */
KAL_ASSERT(NULL != rx_skb);
atomic_dec(&curr_node->rx_pkt_cnt);
rx_pkt_cnt = atomic_read(&curr_node->rx_pkt_cnt);
KAL_ASSERT(rx_pkt_cnt >= 0);
ccci_header = (CCCI_BUFF_T *)rx_skb->data;
DBGLOG(IPCD,TRA,"ipc_read: PORT%d CCCI_MSG(0x%08X, 0x%08X, %02d, 0x%08X)",\
port_id, ccci_header->data[0],ccci_header->data[1],
ccci_header->channel, ccci_header->reserved);
/*If not match please debug EEMCS CCCI demux skb part*/
KAL_ASSERT(ccci_header->channel == eemcs_ipc_inst.ccci_ch.rx);
read_len = ccci_header->data[1] - sizeof(CCCI_BUFF_T);
/* remove CCCI_HEADER */
skb_pull(rx_skb, sizeof(CCCI_BUFF_T));
DBGLOG(IPCD,TRA,"ipc_read: PORT%d read_len=%d",port_id, read_len);
payload=(unsigned char*)rx_skb->data;
if(count < read_len)
{
DBGLOG(IPCD,ERR,"PKT DROP of PORT%d! want_read=%d, read_len=%d",
port_id, count, read_len);
atomic_inc(&curr_node->rx_pkt_drop_cnt);
eemcs_update_statistics(0, eemcs_ipc_inst.eemcs_port_id, RX, DROP);
dev_kfree_skb(rx_skb);
ret = -E2BIG;
goto _exit;
}
DBGLOG(IPCD,TRA,"ipc_read: copy_to_user(len=%d), %p -> %p", read_len, payload, buf);
ret = copy_to_user(buf, payload, read_len);
if(ret!=0)
{
DBGLOG(IPCD, ERR, "[RX]PORT%d copy_to_user(len=%d, %p->%p) fail: %d", \
port_id, read_len, payload, buf, ret);
ret = -EFAULT;
goto _exit;
}
dev_kfree_skb(rx_skb);
if(ret == 0){
DEBUG_LOG_FUNCTION_LEAVE;
return read_len;
}
_exit:
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}
static KAL_INT32 eemcs_ipc_rx_callback(struct sk_buff *skb, KAL_UINT32 private_data)
{
CCCI_BUFF_T *p_cccih = NULL;
KAL_UINT32 node_id;
IPC_MSGSVC_TASKMAP_T *id_map;
unsigned int i = 0;
char * addr;
DEBUG_LOG_FUNCTION_ENTRY;
if (skb){
p_cccih = (CCCI_BUFF_T *)skb->data;
DBGLOG(IPCD,DBG,"[RX]CCCI_H(0x%08X, 0x%08X, %02d, 0x%08X)", \
p_cccih->data[0],p_cccih->data[1],p_cccih->channel, p_cccih->reserved);
}
#ifndef _EEMCS_IPCD_LB_UT_
/* Check IPC task id and extq_id */
if ((id_map=unify_AP_id_2_local_id(p_cccih->reserved))==NULL)
{
DBGLOG(IPCD,ERR,"Wrong AP Unify id (%#x)@RX.!!! PACKET DROP !!!\n",p_cccih->reserved);
dev_kfree_skb(skb);
return KAL_SUCCESS ;
}
node_id = id_map->task_id;
#else
node_id = 0;
#endif
if(IPCD_KERNEL == atomic_read(&eemcs_ipc_inst.ipc_node[node_id].dev_state)){
ipc_ilm_t* p_ilm = NULL;
skb_pull(skb, sizeof(CCCI_BUFF_T));
p_ilm = (ipc_ilm_t*)(skb->data);
p_ilm->dest_mod_id = p_cccih->reserved;
p_ilm->local_para_ptr = (local_para_struct *)(p_ilm+1);
if (p_ilm->local_para_ptr != NULL) {
DBGLOG(IPCD, INF, "[RX][KERN]src=%d dest=0x%x sap=0x%x msg=0x%x local_ptr=%p msg_len=%d", \
p_ilm->src_mod_id, p_ilm->dest_mod_id, p_ilm->sap_id, p_ilm->msg_id,\
p_ilm->local_para_ptr, p_ilm->local_para_ptr->msg_len);
for (i=0; i<32; i++) {
addr = (char *)p_ilm;
DBGLOG(IPCD, DBG, "%p=%x", (addr+i), *(addr+i));
}
}
#ifdef ENABLE_CONN_COEX_MSG
mtk_conn_md_bridge_send_msg((ipc_ilm_t*)(skb->data));
#endif
dev_kfree_skb(skb);
}
else if(IPCD_OPEN == atomic_read(&eemcs_ipc_inst.ipc_node[node_id].dev_state)){
skb_queue_tail(&eemcs_ipc_inst.ipc_node[node_id].rx_skb_list, skb); /* spin_lock_ireqsave inside, refering skbuff.c */
atomic_inc(&eemcs_ipc_inst.ipc_node[node_id].rx_pkt_cnt); /* increase rx_pkt_cnt */
kill_fasync(&eemcs_ipc_inst.ipc_node[node_id].fasync, SIGIO, POLL_IN);
wake_up_poll(&eemcs_ipc_inst.ipc_node[node_id].rx_waitq,POLLIN); /* wake up rx_waitq */
}else{
DBGLOG(IPCD, ERR, "PKT DROP while ipc dev(%d) closed", node_id);
dev_kfree_skb(skb);
eemcs_update_statistics(0, eemcs_ipc_inst.eemcs_port_id, RX, DROP);
}
DEBUG_LOG_FUNCTION_LEAVE;
return KAL_SUCCESS ;
}
static ssize_t eemcs_cdev_read(struct file *fp, char *buf, size_t count, loff_t *ppos)
{
unsigned int flag;
eemcs_cdev_node_t *curr_node = (eemcs_cdev_node_t *)fp->private_data;
KAL_UINT8 port_id = curr_node->eemcs_port_id; /* port_id */
KAL_UINT32 p_type, rx_pkt_cnt, read_len, rx_pkt_cnt_int;
struct sk_buff *rx_skb;
unsigned char *payload=NULL;
CCCI_BUFF_T *ccci_header;
int ret = 0;
DEBUG_LOG_FUNCTION_ENTRY;
flag=fp->f_flags;
//verbose DBGLOG(CHAR,DBG,"read deivce iminor (0x%x),length(0x%x)",port_id,count);
p_type = ccci_get_port_type(port_id);
if(p_type != EX_T_USER)
{
DBGLOG(CHAR, ERR, "PORT%d refuse port(%d) access user port", port_id, p_type);
goto _exit;
}
rx_pkt_cnt_int = atomic_read(&curr_node->buff.remaining_rx_cnt);
KAL_ASSERT(rx_pkt_cnt_int >= 0);
if(rx_pkt_cnt_int == 1)
{
DBGLOG(CHAR, DBG, "Streaming reading!! PORT%d len=%d\n",port_id,count);
rx_skb = curr_node->buff.remaining_rx_skb;
/* rx_skb shall not be null */
KAL_ASSERT(NULL != rx_skb);
read_len = curr_node->buff.remaining_len;
KAL_ASSERT(read_len >= 0);
}
else
{
rx_pkt_cnt = atomic_read(&curr_node->rx_pkt_cnt);
KAL_ASSERT(rx_pkt_cnt >= 0);
if(rx_pkt_cnt == 0) {
if (flag&O_NONBLOCK)
{
ret=-EAGAIN;
//verbose DBGLOG(CHAR,DBG,"[CHAR] PORT(%d) eemcs_cdev_read return O_NONBLOCK for NON-BLOCKING",port_id);
goto _exit;
}
ret = wait_event_interruptible(curr_node->rx_waitq, atomic_read(&curr_node->rx_pkt_cnt) > 0);
if(ret)
{
ret = -EINTR;
DBGLOG(CHAR, ERR, "PORT%d interruptted while waiting data.", port_id);
goto _exit;
}
}
/*
* Cached memory from last read fail
*/
DBGLOG(CHAR, TRA, "eemcs_cdev_read dequeue from rx_skb_list, rx_pkt_cnt(%d)",rx_pkt_cnt);
rx_skb = skb_dequeue(&curr_node->rx_skb_list);
/* There should be rx_skb in the list */
KAL_ASSERT(NULL != rx_skb);
atomic_dec(&curr_node->rx_pkt_cnt);
rx_pkt_cnt = atomic_read(&curr_node->rx_pkt_cnt);
KAL_ASSERT(rx_pkt_cnt >= 0);
ccci_header = (CCCI_BUFF_T *)rx_skb->data;
DBGLOG(CHAR, TRA, "eemcs_cdev_read: PORT%d CCCI_H(0x%x)(0x%x)(0x%x)(0x%x)",\
port_id, ccci_header->data[0],ccci_header->data[1],
ccci_header->channel, ccci_header->reserved);
/*If not match please debug EEMCS CCCI demux skb part*/
if(ccci_header->channel != curr_node->ccci_ch.rx) {
DBGLOG(CHAR,ERR,"Assert(ccci_header->channel == curr_node->ccci_ch.rx)");
DBGLOG(CHAR,ERR,"ccci_header->channel:%d, curr_node->ccci_ch.rx:%d, curr_node->eemcs_port_id:%d",
ccci_header->channel, curr_node->ccci_ch.rx, curr_node->eemcs_port_id);
KAL_ASSERT(ccci_header->channel == curr_node->ccci_ch.rx);
}
//KAL_ASSERT(ccci_header->channel == curr_node->ccci_ch.rx);
if(!(ccci_get_port_cflag(port_id) & EXPORT_CCCI_H))
{
read_len = ccci_header->data[1] - sizeof(CCCI_BUFF_T);
/* remove CCCI_HEADER */
skb_pull(rx_skb, sizeof(CCCI_BUFF_T));
}else{
if(ccci_header->data[0] == CCCI_MAGIC_NUM){
read_len = sizeof(CCCI_BUFF_T);
}else{
read_len = ccci_header->data[1];
}
}
}
DBGLOG(CHAR, TRA, "eemcs_cdev_read: PORT%d read_len=%d",port_id, read_len);
/* 20130816 ian add aud dump */
{
char *ptr = (char *)rx_skb->data;
/* dump 32 byte of the !!!CCCI DATA!!! part */
CDEV_LOG(port_id, CHAR, ERR,"[DUMP]PORT%d eemcs_cdev_read\n\
[00..07](0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)\n\
[08..15](0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)\n\
[16..23](0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)\n\
[24..31](0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)(0x%02x)",\
port_id,\
(int)*(ptr+0),(int)*(ptr+1),(int)*(ptr+2),(int)*(ptr+3),(int)*(ptr+4),(int)*(ptr+5),(int)*(ptr+6),(int)*(ptr+7),\
(int)*(ptr+8),(int)*(ptr+9),(int)*(ptr+10),(int)*(ptr+11),(int)*(ptr+12),(int)*(ptr+13),(int)*(ptr+14),(int)*(ptr+15),\
(int)*(ptr+16),(int)*(ptr+17),(int)*(ptr+18),(int)*(ptr+19),(int)*(ptr+20),(int)*(ptr+21),(int)*(ptr+22),(int)*(ptr+23),\
(int)*(ptr+24),(int)*(ptr+25),(int)*(ptr+26),(int)*(ptr+27),(int)*(ptr+28),(int)*(ptr+29),(int)*(ptr+30),(int)*(ptr+31));
}
payload=(unsigned char*)rx_skb->data;
if(count < read_len)
{
/* Means 1st streaming reading*/
if(rx_pkt_cnt_int == 0)
{
atomic_inc(&curr_node->buff.remaining_rx_cnt);
curr_node->buff.remaining_rx_skb = rx_skb;
}
DBGLOG(CHAR, DBG, "PORT%d !!! USER BUFF(%d) less than DATA SIZE(%d) !!!", port_id, count, read_len);
DBGLOG(CHAR, DBG, "copy data from %p to %p length = %d",payload,buf,count);
ret = copy_to_user(buf, payload, count);
if(ret == 0)
{
curr_node->buff.remaining_len = read_len - count;
skb_pull(rx_skb, count); //move data pointer
//update actually read length
read_len = count;
}
else
{
// If error occurs, discad the skb buffer
DBGLOG(CHAR, ERR, "PORT%d !!! PKT DROP !!! fail copy_to_user buf(%d, %d)", port_id, count, ret);
atomic_dec(&curr_node->rx_pkt_drop_cnt);
eemcs_update_statistics(0, port_id, RX, DROP);
dev_kfree_skb(rx_skb);
eemcs_ccci_release_rx_skb(port_id, 1, rx_skb);
if(rx_pkt_cnt_int == 1)
{
curr_node->buff.remaining_len = 0;
curr_node->buff.remaining_rx_skb = NULL;
atomic_dec(&curr_node->buff.remaining_rx_cnt);
}
}
}
else
{
DBGLOG(CHAR, DBG, "copy data from %p to %p length = %d", payload, buf, read_len);
ret = copy_to_user(buf, payload, read_len);
if(ret!=0)
{
DBGLOG(CHAR, ERR, "copy_to_user len=%d fail: %d)", read_len, ret);
}
dev_kfree_skb(rx_skb);
eemcs_ccci_release_rx_skb(port_id, 1, rx_skb);
if(rx_pkt_cnt_int == 1)
{
curr_node->buff.remaining_len = 0;
curr_node->buff.remaining_rx_skb = NULL;
atomic_dec(&curr_node->buff.remaining_rx_cnt);
}
}
if(ret == 0){
DEBUG_LOG_FUNCTION_LEAVE;
return read_len;
}
_exit:
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}
int ccci_df_to_ccci_callback(unsigned int rxq_no)
{
int ret, hc_ret, is_xcmd;
struct sk_buff * skb = NULL;
CCCI_BUFF_T *ccci_h = NULL;
XBOOT_CMD *p_xcmd = NULL;
KAL_UINT32 port_id = 0;
#ifdef __EEMCS_EXPT_SUPPORT__
EEMCS_EXCEPTION_STATE mode = EEMCS_EX_INVALID;
#endif
DEBUG_LOG_FUNCTION_ENTRY;
/* Step 1. read skb from swq */
skb = hif_dl_read_swq(rxq_no);
if(skb == NULL) {
DBGLOG(CCCI, DBG, "ccci_df_to_ccci_callback read NULL skb on %d", rxq_no);
if(is_exception_mode(&mode))
return KAL_FAIL;
else
KAL_ASSERT(NULL != skb);
}
/* Step 2. call handle complete */
hc_ret = hif_dl_pkt_handle_complete(rxq_no);
KAL_ASSERT(0 == hc_ret);
DBGLOG(CCCI, DBG, "ccci_df_to_ccci_callback() rxq_no = %d", rxq_no);
/* Step 3. buffer type */
if (rxq_no == RXQ_Q0) {
is_xcmd = is_xboot_command(skb);
} else {
is_xcmd = false;
}
wake_lock_timeout(&eemcs_wake_lock, HZ); // Using 1s wake lock
if (is_xcmd == true) {
/* Step 4. callback to xBoot */
p_xcmd = (XBOOT_CMD *)skb->data;
KAL_ASSERT(p_xcmd->magic == (KAL_UINT32)MAGIC_MD_CMD);
if (NULL != ccci_port_info[CCCI_PORT_CTRL].ch.rx_cb){
DBGLOG(CCCI, DBG, "[CCCI][DF CALLBACK] XBOOT_CMD (0x%X)(0x%X)(0x%X)(0x%X)",\
p_xcmd->magic, p_xcmd->msg_id, p_xcmd->status, p_xcmd->reserved[0]);
#ifdef __EEMCS_EXPT_SUPPORT__
if(is_exception_mode(&mode))
{
if(!is_valid_exception_port(CCCI_PORT_CTRL, true))
{
ret = KAL_FAIL;
dev_kfree_skb(skb);
eemcs_expt_ccci_rx_drop(port_id);
DBGLOG(CCCI, ERR, "[CCCI] [DF CALLBACK] EXCEPTION MODE PKT DROPPED !! Q(%d) PORT(%d)", rxq_no, CCCI_PORT_CTRL);
goto _end;
}
else
{
ret = ccci_port_info[CCCI_PORT_CTRL].ch.rx_cb(skb, 0);
}
}
else
#endif
{
ret = ccci_port_info[CCCI_PORT_CTRL].ch.rx_cb(skb, 0);
}
} else {
ret = KAL_FAIL;
dev_kfree_skb(skb);
DBGLOG(CCCI, ERR, "[CCCI] !!! PKT DROP !!! ccci_df_to_ccci_callback xBoot not registered");
}
} else {
/* Step 4. callback to CCCI device */
ccci_h = (CCCI_BUFF_T *)skb->data;
KAL_ASSERT(ccci_h->channel < CH_NUM_MAX);
port_id = ccci_ch_to_port(ccci_h->channel);
if(NULL != ccci_port_info[port_id].ch.rx_cb){
DBGLOG(CCCI,DBG,"ccci_df_to_ccci_callback Rx packet CCCI_H(0x%x)(0x%x)(0x%x)(0x%x)",\
ccci_h->data[0],ccci_h->data[1],ccci_h->channel, ccci_h->reserved );
#ifdef __EEMCS_EXPT_SUPPORT__
if(is_exception_mode(&mode))
{
if(!is_valid_exception_port(port_id, true))
{
ret = KAL_FAIL;
dev_kfree_skb(skb);
eemcs_expt_ccci_rx_drop(port_id);
DBGLOG(CCCI, ERR, "[CCCI] [DF CALLBACK] EXCEPTION MODE PKT DROPPED !! Q(%d) PORT(%d)", rxq_no, port_id);
goto _end;
}
else
{
ret = ccci_port_info[port_id].ch.rx_cb(skb, 0);
}
}
else
#endif
{
ret = ccci_port_info[port_id].ch.rx_cb(skb, 0);
}
}else{
ret = KAL_FAIL;
dev_kfree_skb(skb);
DBGLOG(CCCI,ERR, "[CCCI] !!! PKT DROP !!! ccci_df_to_ccci_callback ccci_port(%d) channel Rx(%d) not registered", port_id, ccci_h->channel);
eemcs_update_statistics(0, port_id, RX, DROP);
}
eemcs_update_statistics(0, port_id, RX, NORMAL);
}
_end:
DEBUG_LOG_FUNCTION_LEAVE;
return ret;
}