broadcom/bcm2835/bcm2835_cpufreq.c

150 	struct bcm2835_mbox_tag_hdr *tag, *last;
188 	/* tag = first tag */
191 	tag = (struct bcm2835_mbox_tag_hdr *)(up + hdr_size);
195 	/* loop unitl end tag (=0x0) */
197 	for (idx = 0; tag->tag != 0; idx++) {
198 		if ((tag->val_len & BCM2835_MBOX_TAG_VAL_LEN_RESPONSE) == 0) {
199 			device_printf(sc->dev, "tag%d response error\n", idx);
203 		tag->val_len &= ~BCM2835_MBOX_TAG_VAL_LEN_RESPONSE;
205 		/* get next tag */
206 		up = (uint8_t *)tag;
207 		tag = (struct bcm2835_mbox_tag_hdr *)(up + hdr_size +
208 		    tag->val_buf_size);
211 		if (tag > last) {
250 	/* setup single tag buffer */
254 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_CLOCK_RATE;
304 	/* setup single tag buffer */
308 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_MAX_CLOCK_RATE;
358 	/* setup single tag buffer */
362 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_MIN_CLOCK_RATE;
413 	/* setup single tag buffer */
417 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_SET_CLOCK_RATE;
442 		/* setup single tag buffer */
446 		msg->tag_hdr.tag = BCM2835_MBOX_TAG_SET_CLOCK_RATE;
497 	/* setup single tag buffer */
501 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_TURBO;
554 	/* setup single tag buffer */
558 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_SET_TURBO;
608 	/* setup single tag buffer */
612 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_VOLTAGE;
661 	/* setup single tag buffer */
665 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_MAX_VOLTAGE;
713 	/* setup single tag buffer */
717 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_MIN_VOLTAGE;
777 	/* setup single tag buffer */
781 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_SET_VOLTAGE;
830 	/* setup single tag buffer */
834 	msg->tag_hdr.tag = BCM2835_MBOX_TAG_GET_TEMPERATURE;
1470 		device_printf(dev, "can't create DMA tag\n");