static irqreturn_t s5p_cec_irq_handler(int irq, void *dev_id)
{
u32 status = 0;
status = s5p_cec_get_status();
if (status & CEC_STATUS_TX_DONE) {
if (status & CEC_STATUS_TX_ERROR) {
tvout_dbg(" CEC_STATUS_TX_ERROR!\n");
s5p_cec_set_tx_state(STATE_ERROR);
} else {
tvout_dbg(" CEC_STATUS_TX_DONE!\n");
s5p_cec_set_tx_state(STATE_DONE);
}
s5p_clr_pending_tx();
wake_up_interruptible(&cec_tx_struct.waitq);
}
if (status & CEC_STATUS_RX_DONE) {
if (status & CEC_STATUS_RX_ERROR) {
tvout_dbg(" CEC_STATUS_RX_ERROR!\n");
s5p_cec_rx_reset();
} else {
u32 size;
tvout_dbg(" CEC_STATUS_RX_DONE!\n");
/* copy data from internal buffer */
size = status >> 24;
spin_lock(&cec_rx_struct.lock);
s5p_cec_get_rx_buf(size, cec_rx_struct.buffer);
cec_rx_struct.size = size;
s5p_cec_set_rx_state(STATE_DONE);
spin_unlock(&cec_rx_struct.lock);
s5p_cec_enable_rx();
}
/* clear interrupt pending bit */
s5p_clr_pending_rx();
wake_up_interruptible(&cec_rx_struct.waitq);
}
return IRQ_HANDLED;
}
static irqreturn_t s5p_cec_irq_handler(int irq, void *priv)
{
struct s5p_cec_dev *cec = priv;
u32 status = 0;
status = s5p_cec_get_status(cec);
dev_dbg(cec->dev, "irq received\n");
if (status & CEC_STATUS_TX_DONE) {
if (status & CEC_STATUS_TX_ERROR) {
dev_dbg(cec->dev, "CEC_STATUS_TX_ERROR set\n");
cec->tx = STATE_ERROR;
} else {
dev_dbg(cec->dev, "CEC_STATUS_TX_DONE\n");
cec->tx = STATE_DONE;
}
s5p_clr_pending_tx(cec);
}
if (status & CEC_STATUS_RX_DONE) {
if (status & CEC_STATUS_RX_ERROR) {
dev_dbg(cec->dev, "CEC_STATUS_RX_ERROR set\n");
s5p_cec_rx_reset(cec);
s5p_cec_enable_rx(cec);
} else {
dev_dbg(cec->dev, "CEC_STATUS_RX_DONE set\n");
if (cec->rx != STATE_IDLE)
dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n");
cec->rx = STATE_BUSY;
cec->msg.len = status >> 24;
cec->msg.rx_status = CEC_RX_STATUS_OK;
s5p_cec_get_rx_buf(cec, cec->msg.len,
cec->msg.msg);
cec->rx = STATE_DONE;
s5p_cec_enable_rx(cec);
}
/* Clear interrupt pending bit */
s5p_clr_pending_rx(cec);
}
return IRQ_WAKE_THREAD;
}