Lines Matching defs:ch

100 bcmdmac_channel_type(struct bcmdmac_channel *ch)
102 	if (ISSET(ch->ch_debug, DMAC_DEBUG_LITE))
109 bcmdmac_channel_used(struct bcmdmac_channel *ch)
111 	return ch->ch_callback != NULL;
140 	struct bcmdmac_channel *ch;
179 		ch = &sc->sc_channels[index];
180 		ch->ch_sc = sc;
181 		ch->ch_index = index;
182 		ch->ch_callback = NULL;
183 		ch->ch_callbackarg = NULL;
184 		ch->ch_ih = NULL;
190 		ch->ch_debug = bcmdmac_read(sc, DMAC_DEBUG(index));
202 	struct bcmdmac_channel *ch = arg;
203 	struct bcmdmac_softc *sc = ch->ch_sc;
206 	cs = bcmdmac_read(sc, DMAC_CS(ch->ch_index));
207 	bcmdmac_write(sc, DMAC_CS(ch->ch_index), cs);
210 	ce = bcmdmac_read(sc, DMAC_DEBUG(ch->ch_index));
213 	bcmdmac_write(sc, DMAC_DEBUG(ch->ch_index), ce);
215 	if (ch->ch_callback)
216 		ch->ch_callback(cs, ce, ch->ch_callbackarg);
226 	struct bcmdmac_channel *ch = NULL;
241 		ch = &sc->sc_channels[index];
242 		ch->ch_callback = cb;
243 		ch->ch_callbackarg = cbarg;
248 	if (ch == NULL)
251 	KASSERT(ch->ch_ih == NULL);
253 	ch->ch_ih = fdt_intr_establish_idx(sc->sc_fa_node, ch->ch_index, ipl,
254 					   bcmdmac_intr, ch, sc->sc_dev.dv_xname);
256 	if (ch->ch_ih == NULL) {
258 		       DEVNAME(sc), ch->ch_index);
259 		ch->ch_callback = NULL;
260 		ch->ch_callbackarg = NULL;
261 		ch = NULL;
264 	return ch;
268 bcmdmac_free(struct bcmdmac_channel *ch)
270 	struct bcmdmac_softc *sc = ch->ch_sc;
273 	bcmdmac_halt(ch);
276 	val = bcmdmac_read(sc, DMAC_CS(ch->ch_index));
279 	bcmdmac_write(sc, DMAC_CS(ch->ch_index), val);
282 	fdt_intr_disestablish(ch->ch_ih);
283 	ch->ch_ih = NULL;
284 	ch->ch_callback = NULL;
285 	ch->ch_callbackarg = NULL;
290 bcmdmac_set_conblk_addr(struct bcmdmac_channel *ch, bus_addr_t addr)
292 	struct bcmdmac_softc *sc = ch->ch_sc;
294 	bcmdmac_write(sc, DMAC_CONBLK_AD(ch->ch_index), addr);
298 bcmdmac_transfer(struct bcmdmac_channel *ch)
300 	struct bcmdmac_softc *sc = ch->ch_sc;
303 	val = bcmdmac_read(sc, DMAC_CS(ch->ch_index));
308 	bcmdmac_write(sc, DMAC_CS(ch->ch_index), val);
314 bcmdmac_halt(struct bcmdmac_channel *ch)
316 	struct bcmdmac_softc *sc = ch->ch_sc;
320 	val = bcmdmac_read(sc, DMAC_CS(ch->ch_index));
322 	bcmdmac_write(sc, DMAC_CS(ch->ch_index), val);
327 	bcmdmac_write(sc, DMAC_NEXTCONBK(ch->ch_index), 0);
331 	bcmdmac_write(sc, DMAC_CS(ch->ch_index), val);