static void engine_status_dump()

in sdk/linux_kernel_drivers/xdma/libxdma.c [379:464]

• 74 lines of code
• 28 McCabe index (conditional complexity)

static void engine_status_dump(struct xdma_engine *engine)
{
	u32 v = engine->status;
	char buffer[256];
	char *buf = buffer;
	int len = 0;

	len = sprintf(buf, "SG engine %s status: 0x%08x: ", engine->name, v);
	
	if ((v & XDMA_STAT_BUSY))
		len += sprintf(buf + len, "BUSY,");
	if ((v & XDMA_STAT_DESC_STOPPED))
		len += sprintf(buf + len, "DESC_STOPPED,");
	if ((v & XDMA_STAT_DESC_COMPLETED))
		len += sprintf(buf + len, "DESC_COMPL,");

	/* common H2C & C2H */
	if ((v & XDMA_STAT_COMMON_ERR_MASK)) {
		if ((v & XDMA_STAT_ALIGN_MISMATCH))
			len += sprintf(buf + len, "ALIGN_MISMATCH ");
		if ((v & XDMA_STAT_MAGIC_STOPPED))
			len += sprintf(buf + len, "MAGIC_STOPPED ");
		if ((v & XDMA_STAT_INVALID_LEN))
			len += sprintf(buf + len, "INVLIAD_LEN ");
		if ((v & XDMA_STAT_IDLE_STOPPED))
			len += sprintf(buf + len, "IDLE_STOPPED ");
		buf[len - 1] = ',';
	}

	if (engine->dir == DMA_TO_DEVICE) {
		/* H2C only */
		if ((v & XDMA_STAT_H2C_R_ERR_MASK)) {
			len += sprintf(buf + len, "R:");
			if ((v & XDMA_STAT_H2C_R_UNSUPP_REQ))
				len += sprintf(buf + len, "UNSUPP_REQ ");
			if ((v & XDMA_STAT_H2C_R_COMPL_ABORT))
				len += sprintf(buf + len, "COMPL_ABORT ");
			if ((v & XDMA_STAT_H2C_R_PARITY_ERR))
				len += sprintf(buf + len, "PARITY ");
			if ((v & XDMA_STAT_H2C_R_HEADER_EP))
				len += sprintf(buf + len, "HEADER_EP ");
			if ((v & XDMA_STAT_H2C_R_UNEXP_COMPL))
				len += sprintf(buf + len, "UNEXP_COMPL ");
			buf[len - 1] = ',';
		}

		if ((v & XDMA_STAT_H2C_W_ERR_MASK)) {
			len += sprintf(buf + len, "W:");
			if ((v & XDMA_STAT_H2C_W_DECODE_ERR))
				len += sprintf(buf + len, "DECODE_ERR ");
			if ((v & XDMA_STAT_H2C_W_SLAVE_ERR))
				len += sprintf(buf + len, "SLAVE_ERR ");
			buf[len - 1] = ',';
		}
		
	} else {
		/* C2H only */
		if ((v & XDMA_STAT_C2H_R_ERR_MASK)) {
			len += sprintf(buf + len, "R:");
			if ((v & XDMA_STAT_C2H_R_DECODE_ERR))
				len += sprintf(buf + len, "DECODE_ERR ");
			if ((v & XDMA_STAT_C2H_R_SLAVE_ERR))
				len += sprintf(buf + len, "SLAVE_ERR ");
			buf[len - 1] = ',';
		}
	}

	/* common H2C & C2H */
	if ((v & XDMA_STAT_DESC_ERR_MASK)) {
		len += sprintf(buf + len, "DESC_ERR:");
		if ((v & XDMA_STAT_DESC_UNSUPP_REQ))
			len += sprintf(buf + len, "UNSUPP_REQ ");
		if ((v & XDMA_STAT_DESC_COMPL_ABORT))
			len += sprintf(buf + len, "COMPL_ABORT ");
		if ((v & XDMA_STAT_DESC_PARITY_ERR))
			len += sprintf(buf + len, "PARITY ");
		if ((v & XDMA_STAT_DESC_HEADER_EP))
			len += sprintf(buf + len, "HEADER_EP ");
		if ((v & XDMA_STAT_DESC_UNEXP_COMPL))
			len += sprintf(buf + len, "UNEXP_COMPL ");
		buf[len - 1] = ',';
	}

	buf[len - 1] = '\0';
	pr_info("%s\n", buffer);
}