| 745 | } |
| 746 | |
| 747 | static int |
| 748 | ti_adc_attach(device_t dev) |
| 749 | { |
| 750 | int err, rid, i; |
| 751 | struct ti_adc_softc *sc; |
| 752 | uint32_t rev, reg; |
| 753 | phandle_t node, child; |
| 754 | pcell_t cell; |
| 755 | int *channels; |
| 756 | int nwire_configs; |
| 757 | int *wire_configs; |
| 758 | |
| 759 | sc = device_get_softc(dev); |
| 760 | sc->sc_dev = dev; |
| 761 | |
| 762 | node = ofw_bus_get_node(dev); |
| 763 | |
| 764 | sc->sc_tsc_wires = 0; |
| 765 | sc->sc_coord_readouts = 1; |
| 766 | sc->sc_x_plate_resistance = 0; |
| 767 | sc->sc_charge_delay = DEFAULT_CHARGE_DELAY; |
| 768 | /* Read "tsc" node properties */ |
| 769 | child = ofw_bus_find_child(node, "tsc"); |
| 770 | if (child != 0 && OF_hasprop(child, "ti,wires")) { |
| 771 | if ((OF_getencprop(child, "ti,wires", &cell, sizeof(cell))) > 0) |
| 772 | sc->sc_tsc_wires = cell; |
| 773 | if ((OF_getencprop(child, "ti,coordinate-readouts", &cell, |
| 774 | sizeof(cell))) > 0) |
| 775 | sc->sc_coord_readouts = cell; |
| 776 | if ((OF_getencprop(child, "ti,x-plate-resistance", &cell, |
| 777 | sizeof(cell))) > 0) |
| 778 | sc->sc_x_plate_resistance = cell; |
| 779 | if ((OF_getencprop(child, "ti,charge-delay", &cell, |
| 780 | sizeof(cell))) > 0) |
| 781 | sc->sc_charge_delay = cell; |
| 782 | nwire_configs = OF_getencprop_alloc_multi(child, |
| 783 | "ti,wire-config", sizeof(*wire_configs), |
| 784 | (void **)&wire_configs); |
| 785 | if (nwire_configs != sc->sc_tsc_wires) { |
| 786 | device_printf(sc->sc_dev, |
| 787 | "invalid number of ti,wire-config: %d (should be %d)\n", |
| 788 | nwire_configs, sc->sc_tsc_wires); |
| 789 | OF_prop_free(wire_configs); |
| 790 | return (EINVAL); |
| 791 | } |
| 792 | err = ti_adc_config_wires(sc, wire_configs, nwire_configs); |
| 793 | OF_prop_free(wire_configs); |
| 794 | if (err) |
| 795 | return (EINVAL); |
| 796 | } |
| 797 | |
| 798 | /* Read "adc" node properties */ |
| 799 | child = ofw_bus_find_child(node, "adc"); |
| 800 | if (child != 0) { |
| 801 | sc->sc_adc_nchannels = OF_getencprop_alloc_multi(child, |
| 802 | "ti,adc-channels", sizeof(*channels), (void **)&channels); |
| 803 | if (sc->sc_adc_nchannels > 0) { |
| 804 | for (i = 0; i < sc->sc_adc_nchannels; i++) |
nothing calls this directly
no test coverage detected