diff options
Diffstat (limited to 'sys/dev/pci/gtp.c')
| -rw-r--r-- | sys/dev/pci/gtp.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/sys/dev/pci/gtp.c b/sys/dev/pci/gtp.c new file mode 100644 index 00000000000..c572e1a6e1e --- /dev/null +++ b/sys/dev/pci/gtp.c @@ -0,0 +1,272 @@ +/* $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; +} |