283 lines
7.4 KiB
C
283 lines
7.4 KiB
C
/* $NetBSD: gtp.c,v 1.4 2002/10/02 16:51:16 thorpej Exp $ */
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/* $OpenBSD: gtp.c,v 1.1 2002/06/03 16:13:21 mickey Exp $ */
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/*
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* Copyright (c) 2002 Vladimir Popov <jumbo@narod.ru>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* Gemtek PCI Radio Card Device Driver */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/proc.h>
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#include <sys/radioio.h>
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#include <machine/bus.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/ic/tea5757.h>
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#include <dev/radio_if.h>
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#define PCI_CBIO 0x10
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int gtp_match(struct device *, struct cfdata *, void *);
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void gtp_attach(struct device *, struct device *, void *);
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int gtp_get_info(void *, struct radio_info *);
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int gtp_set_info(void *, struct radio_info *);
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int gtp_search(void *, int);
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#define GEMTEK_PCI_CAPS RADIO_CAPS_DETECT_SIGNAL | \
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RADIO_CAPS_DETECT_STEREO | \
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RADIO_CAPS_SET_MONO | \
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RADIO_CAPS_HW_SEARCH | \
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RADIO_CAPS_HW_AFC | \
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RADIO_CAPS_LOCK_SENSITIVITY
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#define GEMTEK_PCI_MUTE 0x00
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#define GEMTEK_PCI_RSET 0x10
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#define GEMTEK_PCI_SIGNAL 0x08
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#define GEMTEK_PCI_STEREO 0x08
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#define GTP_WREN_ON (1 << 2)
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#define GTP_WREN_OFF (0 << 2)
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#define GTP_DATA_ON (1 << 1)
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#define GTP_DATA_OFF (0 << 1)
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#define GTP_CLCK_ON (1 << 0)
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#define GTP_CLCK_OFF (0 << 0)
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#define GTP_READ_CLOCK_LOW (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_OFF)
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#define GTP_READ_CLOCK_HIGH (GTP_WREN_OFF | GTP_DATA_ON | GTP_CLCK_ON)
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/* define our interface to the high-level radio driver */
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struct radio_hw_if gtp_hw_if = {
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NULL, /* open */
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NULL, /* close */
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gtp_get_info,
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gtp_set_info,
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gtp_search
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};
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struct gtp_softc {
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struct device sc_dev;
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int mute;
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u_int8_t vol;
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u_int32_t freq;
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u_int32_t stereo;
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u_int32_t lock;
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struct tea5757_t tea;
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};
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CFATTACH_DECL(gtp, sizeof(struct gtp_softc),
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gtp_match, gtp_attach, NULL, NULL);
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void gtp_set_mute(struct gtp_softc *);
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void gtp_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int);
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void gtp_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
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void gtp_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
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int gtp_state(bus_space_tag_t, bus_space_handle_t);
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u_int32_t gtp_hardware_read(bus_space_tag_t, bus_space_handle_t,
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bus_size_t);
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int
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gtp_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct pci_attach_args *pa = aux;
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/* FIXME:
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* Guillemot produces the card that
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* was originally developed by Gemtek
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*/
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#if 0
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GEMTEK &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GEMTEK_PR103)
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return (1);
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#else
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if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_GUILLEMOT &&
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PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_GUILLEMOT_MAXIRADIO)
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return (1);
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#endif
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return (0);
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}
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void
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gtp_attach(struct device *parent, struct device *self, void *aux)
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{
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struct gtp_softc *sc = (struct gtp_softc *) self;
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struct pci_attach_args *pa = aux;
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struct cfdata *cf = sc->sc_dev.dv_cfdata;
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pci_chipset_tag_t pc = pa->pa_pc;
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bus_size_t iosize;
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pcireg_t csr;
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char devinfo[256];
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pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo);
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printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class));
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/* Map I/O registers */
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if (pci_mapreg_map(pa, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0, &sc->tea.iot,
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&sc->tea.ioh, NULL, &iosize)) {
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printf(": can't map i/o space\n");
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return;
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}
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/* Enable the card */
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csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
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pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
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csr | PCI_COMMAND_MASTER_ENABLE);
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sc->vol = 0;
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sc->mute = 0;
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sc->freq = MIN_FM_FREQ;
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sc->stereo = TEA5757_STEREO;
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sc->lock = TEA5757_S030;
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sc->tea.offset = 0;
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sc->tea.flags = cf->cf_flags;
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sc->tea.init = gtp_init;
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sc->tea.rset = gtp_rset;
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sc->tea.write_bit = gtp_write_bit;
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sc->tea.read = gtp_hardware_read;
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printf(": Gemtek PR103\n");
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radio_attach_mi(>p_hw_if, sc, &sc->sc_dev);
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}
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int
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gtp_get_info(void *v, struct radio_info *ri)
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{
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struct gtp_softc *sc = v;
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ri->mute = sc->mute;
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ri->volume = sc->vol ? 255 : 0;
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ri->stereo = sc->stereo == TEA5757_STEREO ? 1 : 0;
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ri->caps = GEMTEK_PCI_CAPS;
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ri->rfreq = 0;
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ri->lock = tea5757_decode_lock(sc->lock);
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/* Frequency read unsupported */
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ri->freq = sc->freq;
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ri->info = gtp_state(sc->tea.iot, sc->tea.ioh);
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gtp_set_mute(sc);
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return (0);
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}
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int
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gtp_set_info(void *v, struct radio_info *ri)
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{
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struct gtp_softc *sc = v;
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sc->mute = ri->mute ? 1 : 0;
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sc->vol = ri->volume ? 255 : 0;
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sc->stereo = ri->stereo ? TEA5757_STEREO: TEA5757_MONO;
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sc->lock = tea5757_encode_lock(ri->lock);
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ri->freq = sc->freq = tea5757_set_freq(&sc->tea,
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sc->lock, sc->stereo, ri->freq);
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gtp_set_mute(sc);
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return (0);
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}
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int
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gtp_search(void *v, int f)
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{
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struct gtp_softc *sc = v;
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tea5757_search(&sc->tea, sc->lock, sc->stereo, f);
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gtp_set_mute(sc);
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return (0);
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}
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void
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gtp_set_mute(struct gtp_softc *sc)
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{
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if (sc->mute || !sc->vol)
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bus_space_write_2(sc->tea.iot, sc->tea.ioh, 0, GEMTEK_PCI_MUTE);
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else
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sc->freq = tea5757_set_freq(&sc->tea,
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sc->lock, sc->stereo, sc->freq);
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}
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void
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gtp_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off,
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int bit)
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{
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u_int8_t data;
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data = bit ? GTP_DATA_ON : GTP_DATA_OFF;
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bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data);
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bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_ON | data);
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bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_CLCK_OFF | data);
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}
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void
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gtp_init(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d)
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{
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bus_space_write_1(iot, ioh, off, GTP_WREN_ON | GTP_DATA_ON | GTP_CLCK_OFF);
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}
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void
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gtp_rset(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, u_int32_t d)
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{
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bus_space_write_1(iot, ioh, off, GEMTEK_PCI_RSET);
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}
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u_int32_t
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gtp_hardware_read(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off)
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{
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/* UNSUPPORTED */
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return 0;
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}
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int
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gtp_state(bus_space_tag_t iot, bus_space_handle_t ioh)
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{
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int ret;
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bus_space_write_2(iot, ioh, 0,
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GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_OFF);
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ret = bus_space_read_2(iot, ioh, 0) &
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GEMTEK_PCI_STEREO? 0 : RADIO_INFO_STEREO;
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bus_space_write_2(iot, ioh, 0,
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GTP_DATA_ON | GTP_WREN_OFF | GTP_CLCK_ON);
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ret |= bus_space_read_2(iot, ioh, 0) &
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GEMTEK_PCI_SIGNAL? 0 : RADIO_INFO_SIGNAL;
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return ret;
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}
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