File: [local] / sys / dev / isa / sf16fmr2.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:11:27 2008 UTC (16 years, 2 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: sf16fmr2.c,v 1.6 2002/10/15 15:00:11 mickey Exp $ */
/* $RuOBSD: sf16fmr2.c,v 1.12 2001/10/18 16:51:36 pva Exp $ */
/*
* Copyright (c) 2001 Maxim Tsyplakov <tm@oganer.net>,
* 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.
*/
/* SoundForte RadioLink SF16-FMR2 FM Radio Card device driver */
/*
* Philips TEA5757H AM/FM Self Tuned Radio:
* http://www.semiconductors.philips.com/pip/TEA5757H
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/device.h>
#include <sys/radioio.h>
#include <dev/isa/isavar.h>
#include <dev/radio_if.h>
#include <dev/ic/tea5757.h>
#include <dev/ic/pt2254a.h>
#define SF16FMR2_BASE_VALID(x) (x == 0x384)
#define SF16FMR2_CAPABILITIES RADIO_CAPS_DETECT_STEREO | \
RADIO_CAPS_DETECT_SIGNAL | \
RADIO_CAPS_SET_MONO | \
RADIO_CAPS_LOCK_SENSITIVITY | \
RADIO_CAPS_HW_AFC | \
RADIO_CAPS_HW_SEARCH
#define SF16FMR2_AMP 0
#define SF16FMR2_NOAMP 1
#define SF16FMR2_AMPLIFIER (1 << 7)
#define SF16FMR2_SIGNAL (1 << 3)
#define SF16FMR2_STEREO (1 << 3)
#define SF16FMR2_MUTE 0x00
#define SF16FMR2_UNMUTE 0x04
#define SF16FMR2_DATA_ON (1 << 0)
#define SF16FMR2_DATA_OFF (0 << 0)
#define SF16FMR2_CLCK_ON (1 << 1)
#define SF16FMR2_CLCK_OFF (0 << 1)
#define SF16FMR2_WREN_ON (0 << 2) /* SF16-FMR2 has inverse WREN */
#define SF16FMR2_WREN_OFF (1 << 2)
#define SF16FMR2_READ_CLOCK_LOW \
SF16FMR2_DATA_ON | SF16FMR2_CLCK_OFF | SF16FMR2_WREN_OFF
#define SF16FMR2_READ_CLOCK_HIGH \
SF16FMR2_DATA_ON | SF16FMR2_CLCK_ON | SF16FMR2_WREN_OFF
#define SF16FMR2_VOLU_STROBE_ON (0 << 2)
#define SF16FMR2_VOLU_STROBE_OFF (1 << 2)
#define SF16FMR2_VOLU_CLOCK_ON (1 << 5)
#define SF16FMR2_VOLU_CLOCK_OFF (0 << 5)
#define SF16FMR2_VOLU_DATA_ON (1 << 6)
#define SF16FMR2_VOLU_DATA_OFF (0 << 6)
int sf2r_probe(struct device *, void *, void *);
void sf2r_attach(struct device *, struct device * self, void *);
int sf2r_get_info(void *, struct radio_info *);
int sf2r_set_info(void *, struct radio_info *);
int sf2r_search(void *, int);
/* define our interface to the higher level radio driver */
struct radio_hw_if sf2r_hw_if = {
NULL, /* open */
NULL, /* close */
sf2r_get_info,
sf2r_set_info,
sf2r_search
};
struct sf2r_softc {
struct device sc_dev;
int type;
u_int32_t freq;
u_int32_t stereo;
u_int32_t lock;
u_int8_t vol;
int mute;
struct tea5757_t tea;
};
struct cfattach sf2r_ca = {
sizeof(struct sf2r_softc), sf2r_probe, sf2r_attach
};
struct cfdriver sf2r_cd = {
NULL, "sf2r", DV_DULL
};
void sf2r_set_mute(struct sf2r_softc *);
void sf2r_send_vol_bit(bus_space_tag_t, bus_space_handle_t, u_int32_t);
int sf2r_find(bus_space_tag_t, bus_space_handle_t, int);
u_int32_t sf2r_read_register(bus_space_tag_t, bus_space_handle_t, bus_size_t);
void sf2r_init(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
void sf2r_rset(bus_space_tag_t, bus_space_handle_t, bus_size_t, u_int32_t);
void sf2r_write_bit(bus_space_tag_t, bus_space_handle_t, bus_size_t, int);
int
sf2r_probe(struct device *parent, void *match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh;
struct cfdata *cf = match;
int iosize = 1, iobase = ia->ia_iobase;
if (!SF16FMR2_BASE_VALID(iobase)) {
printf("sf2r: configured iobase 0x%x invalid\n", iobase);
return (0);
}
if (bus_space_map(iot, iobase, iosize, 0, &ioh))
return (0);
if (!sf2r_find(iot, ioh, cf->cf_flags)) {
bus_space_unmap(iot, ioh, iosize);
return (0);
}
bus_space_unmap(iot, ioh, iosize);
ia->ia_iosize = iosize;
return (1);
}
void
sf2r_attach(struct device *parent, struct device *self, void *aux)
{
struct sf2r_softc *sc = (void *) self;
struct isa_attach_args *ia = aux;
struct cfdata *cf = sc->sc_dev.dv_cfdata;
int type;
sc->tea.iot = ia->ia_iot;
sc->mute = 0;
sc->vol = 0;
sc->freq = MIN_FM_FREQ;
sc->stereo = TEA5757_STEREO;
sc->lock = TEA5757_S030;
/* remap I/O */
if (bus_space_map(sc->tea.iot, ia->ia_iobase, ia->ia_iosize,
0, &sc->tea.ioh)) {
printf(": bus_space_map() failed\n");
return;
}
sc->tea.offset = 0;
sc->tea.flags = cf->cf_flags;
sc->tea.init = sf2r_init;
sc->tea.rset = sf2r_rset;
sc->tea.write_bit = sf2r_write_bit;
sc->tea.read = sf2r_read_register;
printf(": SoundForte RadioLink SF16-FMR2\n");
tea5757_set_freq(&sc->tea, sc->stereo, sc->lock, sc->freq);
sf2r_set_mute(sc);
type = sf2r_read_register(sc->tea.iot, sc->tea.ioh, sc->tea.offset);
sc->type = (type >> 24) & (1 << 1)? SF16FMR2_AMP : SF16FMR2_NOAMP;
radio_attach_mi(&sf2r_hw_if, sc, &sc->sc_dev);
}
/*
* Mute/unmute the card
*/
void
sf2r_set_mute(struct sf2r_softc *sc)
{
u_int8_t mute;
u_int32_t reg, vol, i;
if (sc->type == SF16FMR2_NOAMP) {
mute = (sc->mute || !sc->vol)? SF16FMR2_MUTE : SF16FMR2_UNMUTE;
bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute);
DELAY(64);
bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute);
} else {
mute = sc->mute? SF16FMR2_MUTE : SF16FMR2_UNMUTE;
bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute);
DELAY(64);
bus_space_write_1(sc->tea.iot, sc->tea.ioh, 0, mute);
vol = pt2254a_encode_volume(&sc->vol, 255);
reg = pt2254a_compose_register(vol, vol,
USE_CHANNEL, USE_CHANNEL);
bus_space_write_1(sc->tea.iot, sc->tea.ioh,
0, SF16FMR2_VOLU_STROBE_OFF);
for (i = 0; i < PT2254A_REGISTER_LENGTH; i++)
sf2r_send_vol_bit(sc->tea.iot, sc->tea.ioh,
reg & (1 << i));
bus_space_write_1(sc->tea.iot, sc->tea.ioh,
0, SF16FMR2_VOLU_STROBE_ON);
bus_space_write_1(sc->tea.iot, sc->tea.ioh,
0, SF16FMR2_VOLU_STROBE_OFF);
bus_space_write_1(sc->tea.iot, sc->tea.ioh,
0, 0x10 | SF16FMR2_VOLU_STROBE_OFF);
}
}
void
sf2r_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, SF16FMR2_MUTE);
}
void
sf2r_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, SF16FMR2_MUTE);
bus_space_write_1(iot, ioh, off, SF16FMR2_UNMUTE);
}
int
sf2r_find(bus_space_tag_t iot, bus_space_handle_t ioh, int flags)
{
struct sf2r_softc sc;
u_int32_t freq;
sc.tea.iot = iot;
sc.tea.ioh = ioh;
sc.tea.offset = 0;
sc.tea.flags = flags;
sc.tea.init = sf2r_init;
sc.tea.rset = sf2r_rset;
sc.tea.write_bit = sf2r_write_bit;
sc.tea.read = sf2r_read_register;
sc.lock = TEA5757_S030;
sc.stereo = TEA5757_STEREO;
if ((bus_space_read_1(iot, ioh, 0) & 0x70) == 0x30) {
/*
* Let's try to write and read a frequency.
* If the written and read frequencies are
* the same then success.
*/
sc.freq = MIN_FM_FREQ;
tea5757_set_freq(&sc.tea, sc.stereo, sc.lock, sc.freq);
sf2r_set_mute(&sc);
freq = sf2r_read_register(iot, ioh, sc.tea.offset);
if (tea5757_decode_freq(freq, sc.tea.flags & TEA5757_TEA5759)
== sc.freq)
return 1;
}
return 0;
}
void
sf2r_write_bit(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off, int bit)
{
u_int8_t data;
data = bit? SF16FMR2_DATA_ON : SF16FMR2_DATA_OFF;
bus_space_write_1(iot, ioh, off,
SF16FMR2_WREN_ON | SF16FMR2_CLCK_OFF | data);
bus_space_write_1(iot, ioh, off,
SF16FMR2_WREN_ON | SF16FMR2_CLCK_ON | data);
bus_space_write_1(iot, ioh, off,
SF16FMR2_WREN_ON | SF16FMR2_CLCK_OFF | data);
}
u_int32_t
sf2r_read_register(bus_space_tag_t iot, bus_space_handle_t ioh, bus_size_t off)
{
u_int32_t res = 0;
u_int8_t i, state = 0;
bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW);
DELAY(6);
bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_HIGH);
i = bus_space_read_1(iot, ioh, off);
DELAY(6);
/* Amplifier: 0 - not present, 1 - present */
state = i & SF16FMR2_AMPLIFIER? (1 << 2) : (0 << 2);
/* Signal: 0 - not tuned, 1 - tuned */
state |= i & SF16FMR2_SIGNAL? (0 << 1) : (1 << 1);
bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW);
i = bus_space_read_1(iot, ioh, off);
/* Stereo: 0 - mono, 1 - stereo */
state |= i & SF16FMR2_STEREO? (0 << 0) : (1 << 0);
res = i & SF16FMR2_DATA_ON;
i = 23;
while ( i-- ) {
DELAY(6);
res <<= 1;
bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_HIGH);
DELAY(6);
bus_space_write_1(iot, ioh, off, SF16FMR2_READ_CLOCK_LOW);
res |= bus_space_read_1(iot, ioh, off) & SF16FMR2_DATA_ON;
}
return res | (state << 24);
}
int
sf2r_get_info(void *v, struct radio_info *ri)
{
struct sf2r_softc *sc = v;
u_int32_t buf;
ri->mute = sc->mute;
ri->volume = sc->vol? 255 : 0;
ri->stereo = sc->stereo == TEA5757_STEREO? 1 : 0;
ri->caps = SF16FMR2_CAPABILITIES;
ri->rfreq = 0;
ri->lock = tea5757_decode_lock(sc->lock);
buf = sf2r_read_register(sc->tea.iot, sc->tea.ioh, sc->tea.offset);
ri->freq = sc->freq = tea5757_decode_freq(buf,
sc->tea.flags & TEA5757_TEA5759);
ri->info = 3 & (buf >> 24);
return (0);
}
int
sf2r_set_info(void *v, struct radio_info *ri)
{
struct sf2r_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);
sf2r_set_mute(sc);
return (0);
}
int
sf2r_search(void *v, int f)
{
struct sf2r_softc *sc = v;
tea5757_search(&sc->tea, sc->lock, sc->stereo, f);
sf2r_set_mute(sc);
return (0);
}
void
sf2r_send_vol_bit(bus_space_tag_t iot, bus_space_handle_t ioh, u_int32_t d) {
u_int8_t data;
data = SF16FMR2_VOLU_STROBE_OFF;
data |= d? SF16FMR2_VOLU_DATA_ON : SF16FMR2_VOLU_DATA_OFF;
bus_space_write_1(iot, ioh, 0, data | SF16FMR2_VOLU_CLOCK_OFF);
bus_space_write_1(iot, ioh, 0, data | SF16FMR2_VOLU_CLOCK_ON);
}