drivers/dma/apple-admac.c

232 	struct admac_tx *adtx = to_admac_tx(tx);
239 	list_add_tail(&adtx->node, &adchan->submitted);
258 	struct admac_tx *adtx;
263 	adtx = kzalloc(sizeof(*adtx), GFP_NOWAIT);
264 	if (!adtx)
267 	adtx->cyclic = true;
269 	adtx->buf_addr = buf_addr;
270 	adtx->buf_len = buf_len;
271 	adtx->buf_end = buf_addr + buf_len;
272 	adtx->period_len = period_len;
274 	adtx->submitted_pos = 0;
275 	adtx->reclaimed_pos = 0;
277 	dma_async_tx_descriptor_init(&adtx->tx, chan);
278 	adtx->tx.tx_submit = admac_tx_submit;
279 	adtx->tx.desc_free = admac_desc_free;
281 	return &adtx->tx;
346 				     struct admac_tx *adtx)
369 	pos = adtx->reclaimed_pos + adtx->period_len * (nreports + 1) - residue2;
371 	return adtx->buf_len - pos % adtx->buf_len;
379 	struct admac_tx *adtx;
390 	adtx = adchan->current_tx;
392 	if (adtx && adtx->tx.cookie == cookie) {
394 		residue = admac_cyclic_read_residue(ad, adchan->no, adtx);
398 		list_for_each_entry(adtx, &adchan->issued, node) {
399 			if (adtx->tx.cookie == cookie) {
400 				residue = adtx->buf_len;
538 	struct admac_tx *adtx, *_adtx;
548 	list_for_each_entry_safe(adtx, _adtx, &head, node) {
549 		list_del(&adtx->node);
550 		admac_desc_free(&adtx->tx);
718 	struct admac_tx *adtx;
724 	adtx = adchan->current_tx;
729 	if (!adtx || !nacks)
735 	dmaengine_desc_get_callback(&adtx->tx, &cb);