dev/isa/isv.c

123 isv_read(struct isv_regs *ir, bus_size_t reg)
125 	return bus_space_read_2(ir->ir_bt, ir->ir_bh, reg);
129 isv_write(struct isv_regs *ir, bus_size_t reg, uint16_t val)
131 	bus_space_write_2(ir->ir_bt, ir->ir_bh, reg, val);
135 isv_retrace(struct isv_regs *ir)
139 	video = isv_read(ir, ISV_STATUS) & ISV_STATUS_VIDEO_MASK;
174 isv_probe(struct isv_regs *ir)
181 	isv_write(ir, ISV_CONTROL,
192 		if (isv_delta(&state, isv_retrace(ir)))
207 	struct isv_regs ir;
215 	ir.ir_bt = ia->ia_iot;
217 	if (bus_space_map(ir.ir_bt, ia->ia_io[0].ir_addr, 8, 0, &ir.ir_bh))
220 	rv = isv_probe(&ir);
222 	bus_space_unmap(ir.ir_bt, ir.ir_bh, 8);
241 	struct isv_regs *ir = &sc->sc_ir;
244 	ir->ir_bt = ia->ia_iot;
246 	if (bus_space_map(ir->ir_bt, ia->ia_io[0].ir_addr, 8, 0, &ir->ir_bh)) {
281 isv_retrace_wait(struct isv_regs *ir, int *state, const struct timeval *end)
286 		if (!isv_delta(state, isv_retrace(ir))) {
304 isv_capture_wait(struct isv_regs *ir, int *state, const struct timeval *end)
309 		if (!isv_delta(state, isv_retrace(ir))) {
331 	struct isv_regs *ir = &sc->sc_ir;
343 	if (speed < 1 && (rc = isv_retrace_wait(ir, &state, &end)) != 0)
346 	if (speed < 2 && (rc = isv_capture_wait(ir, &state, &end)) != 0)
349 	if ((rc = isv_retrace_wait(ir, &state, &end)) != 0)
366 	isv_write(ir, ISV_CONTROL,
368 	isv_write(ir, ISV_CONTROL,
370 	isv_write(ir, ISV_CONTROL,
375 	isv_read(ir, ISV_DATA);
376 	bus_space_read_multi_stream_2(ir->ir_bt, ir->ir_bh, ISV_DATA,
380 	isv_write(ir, ISV_CONTROL,
392 	if (isv_retrace_wait(ir, &state, &end) != 0)
396 	if (isv_capture_wait(ir, &state, &end) != 0)
447 	struct isv_regs *ir = &sc->sc_ir;
453 	bus_space_unmap(ir->ir_bt, ir->ir_bh, 8);