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/* $OpenBSD: gtp.c,v 1.1 2002/06/03 16:13:21 mickey Exp $ */
/*
* Copyright (c) 2002 Vladimir Popov <jumbo@narod.ru>
* 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/radioio.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/ic/tea5757.h>
#include <dev/radio_if.h>
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;
pcireg_t csr;
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;
}
/* Enable the card */
csr = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE);
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;
}
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