can/esd/esdacc.c

97 static ktime_t acc_ts2ktime(struct acc_ov *ov, u64 ts)
109 void acc_init_ov(struct acc_ov *ov, struct device *dev)
113 	temp = acc_ov_read32(ov, ACC_OV_OF_VERSION);
114 	ov->version = temp;
115 	ov->features = (temp >> 16);
117 	temp = acc_ov_read32(ov, ACC_OV_OF_INFO);
118 	ov->total_cores = temp;
119 	ov->active_cores = (temp >> 8);
121 	ov->core_frequency = acc_ov_read32(ov, ACC_OV_OF_CANCORE_FREQ);
122 	ov->timestamp_frequency = acc_ov_read32(ov, ACC_OV_OF_TS_FREQ_LO);
127 	if (ov->features & ACC_OV_REG_FEAT_MASK_NEW_PSC) {
128 		acc_ov_set_bits(ov, ACC_OV_OF_MODE,
131 		ov->core_frequency /= 2;
136 		ov->version, ov->core_frequency, ov->timestamp_frequency,
137 		ov->features, acc_ov_read32(ov, ACC_OV_OF_INFO) >> 16,
138 		ov->active_cores, ov->total_cores);
141 void acc_init_bm_ptr(struct acc_ov *ov, struct acc_core *cores, const void *mem)
146 	 * implemented in the FPGA, i.e. N = ov->total_cores
159 	ov->bmfifo.messages = mem;
160 	ov->bmfifo.irq_cnt = mem + (ov->total_cores + 1U) * ACC_CORE_DMABUF_SIZE;
162 	for (u = 0U; u < ov->active_cores; u++) {
166 		core->bmfifo.irq_cnt = ov->bmfifo.irq_cnt + (u + 1U);
360 	if (priv->ov->features & ACC_OV_REG_FEAT_MASK_CANFD) {
420 				acc_ts2ktime(priv->ov, msg->ts);
455 		skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
514 	skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
571 	skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
624 		skb_hwtstamps(skb)->hwtstamp = acc_ts2ktime(priv->ov, msg->ts);
679  * @ov: overview module structure
711 irqreturn_t acc_card_interrupt(struct acc_ov *ov, struct acc_core *cores)
722 	if (READ_ONCE(*ov->bmfifo.irq_cnt) != ov->bmfifo.local_irq_cnt) {
724 		ov->bmfifo.local_irq_cnt = READ_ONCE(*ov->bmfifo.irq_cnt);
727 	for (i = 0; i < ov->active_cores; i++) {
740 	 * call handle_{ov|core}_interrupt and then acknowledge the
743 	acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_MASK, irqmask);
747 		acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_COUNTER,
748 			       ov->bmfifo.local_irq_cnt);
751 	for (i = 0; i < ov->active_cores; i++) {
761 	acc_ov_write32(ov, ACC_OV_OF_BM_IRQ_MASK, ACC_BM_IRQ_UNMASK_ALL);