/* $OpenBSD: gtp.c,v 1.2 2005/08/09 04:10:11 mickey Exp $ */ /* * Copyright (c) 2002 Vladimir Popov * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* Gemtek PCI Radio Card Device Driver */ #include #include #include #include #include #include #include #include #include #include #include #include #include int gtp_match(struct device *, void *, void *); void gtp_attach(struct device *, struct device *, void *); int gtp_get_info(void *, struct radio_info *); int gtp_set_info(void *, struct radio_info *); int gtp_search(void *, int); #define GEMTEK_PCI_CAPS RADIO_CAPS_DETECT_SIGNAL | \ RADIO_CAPS_DETECT_STEREO | \ RADIO_CAPS_SET_MONO | \ RADIO_CAPS_HW_SEARCH | \ RADIO_CAPS_HW_AFC | \ RADIO_CAPS_LOCK_SENSITIVITY #define GEMTEK_PCI_MUTE 0x00 #define GEMTEK_PCI_RSET 0x10 #define GEMTEK_PCI_SIGNAL 0x08 #define GEMTEK_PCI_STEREO 0x08 #define GTP_WREN_ON (1 << 2) #define GTP_WREN_OFF (0 << 2) #define GTP_DATA_ON (1 << 1) #define GTP_DATA_OFF (0 << 1) #define GTP_CLCK_ON (1 << 0) #define GTP_CLCK_OFF (0 << 0) #define GTP_READ_CLOCK_LOW (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_OFF) #define GTP_READ_CLOCK_HIGH (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_ON) /* define our interface to the high-level radio driver */ struct radio_hw_if gtp_hw_if = { NULL, /* open */ NULL, /* close */ gtp_get_info, gtp_set_info, gtp_search }; struct gtp_softc { struct device sc_dev; int mute; u_int8_t vol; u_int32_t freq; u_int32_t stereo; u_int32_t lock; struct tea5757_t tea; }; struct cfattach gtp_ca = { sizeof(struct gtp_softc), gtp_match, gtp_attach }; struct cfdriver gtp_cd = { NULL, "gtp", DV_DULL }; void gtp_set_mute(struct gtp_softc *); void gtp_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int); void gtp_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); void gtp_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t); int gtp_state(bus_space_tag_t, bus_space_handle_t); u_int32_t gtp_hardware_read(bus_space_tag_t, bus_space_handle_t, bus_size_t); int gtp_match(struct device *parent, void *match, void *aux) { struct pci_attach_args *pa = aux; /* FIXME: * Guillemot produces the card that * was originally developed by Gemtek */ if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GEMTEK && PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GEMTEK_PR103) return (1); return (0); } void gtp_attach(struct device *parent, struct device *self, void *aux) { struct gtp_softc *sc = (struct gtp_softc *) self; struct pci_attach_args *pa = aux; struct cfdata *cf = sc->sc_dev.dv_cfdata; pci_chipset_tag_t pc = pa->pa_pc; if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_IO, 0, &sc->tea.iot, &sc->tea.ioh, NULL, NULL, 0)) { printf(": can't map i/o space\n"); return; } sc->vol = 0; sc->mute = 0; sc->freq = MIN_FM_FREQ; sc->stereo = TEA5757_STEREO; sc->lock = TEA5757_S030; sc->tea.offset = 0; sc->tea.flags = cf->cf_flags; sc->tea.init = gtp_init; sc->tea.rset = gtp_rset; sc->tea.write_bit = gtp_write_bit; sc->tea.read = gtp_hardware_read; printf(": Gemtek PR103\n"); radio_attach_mi(>p_hw_if, sc, &sc->sc_dev); } int gtp_get_info(void *v, struct radio_info *ri) { struct gtp_softc *sc = v; ri->mute = sc->mute; ri->volume = sc->vol ? 255 : 0; ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0; ri->caps = GEMTEK_PCI_CAPS; ri->rfreq = 0; ri->lock = tea5757_decode_lock(sc->lock); /* Frequency read unsupported */ ri->freq = sc->freq; ri->info = gtp_state(sc->tea.iot, sc->tea.ioh); gtp_set_mute(sc); return (0); } int gtp_set_info(void *v, struct radio_info *ri) { struct gtp_softc *sc = v; sc->mute = ri->mute ? 1 : 0; sc->vol = ri->volume ? 255 : 0; sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO; sc->lock = tea5757_encode_lock(ri->lock); ri->freq = sc->freq = tea5757_set_freq(&sc->tea, sc->lock, sc->stereo, ri->freq); gtp_set_mute(sc); return (0); } int gtp_search(void *v, int f) { struct gtp_softc *sc = v; tea5757_search(&sc->tea, sc->lock, sc->stereo, f); gtp_set_mute(sc); return (0); } void gtp_set_mute(struct gtp_softc *sc) { if (sc->mute || !sc->vol) bus_space_write_2(sc->tea.iot, sc->tea.ioh, 0, GEMTEK_PCI_MUTE); else sc->freq = tea5757_set_freq(&sc->tea, sc->lock, sc->stereo, sc->freq); } void gtp_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, int bit) { u_int8_t data; data = bit ? GTP_DATA_ON : GTP_DATA_OFF; bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_ON | data); bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data); } void gtp_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) { bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_DATA_ON | GTP_CLCK_OFF); } void gtp_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d) { bus_space_write_1(iot, ioh, off, GEMTEK_PCI_RSET); } u_int32_t gtp_hardware_read(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off) { /* UNSUPPORTED */ return 0; } int gtp_state(bus_space_tag_t iot, bus_space_handle_t ioh) { int ret; bus_space_write_2(iot, ioh, 0, GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_OFF); ret = bus_space_read_2(iot, ioh, 0) & GEMTEK_PCI_STEREO? 0 : RADIO_INFO_STEREO; bus_space_write_2(iot, ioh, 0, GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_ON); ret |= bus_space_read_2(iot, ioh, 0) & GEMTEK_PCI_SIGNAL? 0 : RADIO_INFO_SIGNAL; return ret; }