File: [local] / sys / dev / isa / sf16fmr.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:11:27 2008 UTC (16 years, 3 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: sf16fmr.c,v 1.1 2002/04/25 04:56:59 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.
*/
/* SoundForte RadioLink SF16-FMR FM Radio Card device driver */
#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/tc921x.h>
#include <dev/ic/pt2254a.h>
#define SF16FMR_BASE_VALID(x) (x == 0x384 || x == 0x284)
#define SF16FMR_CAPABILITIES 0
#define SF16FMR_FREQ_DATA 0
#define SF16FMR_FREQ_CLOCK 1
#define SF16FMR_FREQ_PERIOD 2
#define SF16FMR_FREQ_STEADY (1 << SF16FMR_FREQ_DATA) | \
(1 << SF16FMR_FREQ_CLOCK) | \
(1 << SF16FMR_FREQ_PERIOD)
#define SF16FMR_VOLU_STROBE_ON (1 << 3)
#define SF16FMR_VOLU_STROBE_OFF (0 << 3)
#define SF16FMR_VOLU_CLOCK_ON (1 << 4)
#define SF16FMR_VOLU_CLOCK_OFF (0 << 4)
#define SF16FMR_VOLU_DATA_ON (1 << 5)
#define SF16FMR_VOLU_DATA_OFF (0 << 5)
int sfr_probe(struct device *, void *, void *);
void sfr_attach(struct device *, struct device * self, void *);
int sfr_get_info(void *, struct radio_info *);
int sfr_set_info(void *, struct radio_info *);
/* define our interface to the higher level radio driver */
struct radio_hw_if sfr_hw_if = {
NULL, /* open */
NULL, /* close */
sfr_get_info,
sfr_set_info,
NULL
};
struct sfr_softc {
struct device sc_dev;
u_int32_t freq;
u_int8_t vol;
int mute;
struct tc921x_t c;
};
struct cfattach sfr_ca = {
sizeof(struct sfr_softc), sfr_probe, sfr_attach
};
struct cfdriver sfr_cd = {
NULL, "sfr", DV_DULL
};
int sfr_find(bus_space_tag_t, bus_space_handle_t);
u_int32_t sfr_set_freq(struct tc921x_t *, u_int32_t);
u_int32_t sfr_get_freq(struct tc921x_t *);
u_int8_t sfr_set_vol(bus_space_tag_t, bus_space_handle_t, u_int8_t, int);
void sfr_send_volume(bus_space_tag_t, bus_space_handle_t, u_int32_t);
int
sfr_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;
int iosize = 1, iobase = ia->ia_iobase;
if (!SF16FMR_BASE_VALID(iobase)) {
printf("sfr: configured iobase 0x%x invalid\n", iobase);
return (0);
}
if (bus_space_map(iot, iobase, iosize, 0, &ioh))
return (0);
if (!sfr_find(iot, ioh)) {
bus_space_unmap(iot, ioh, iosize);
return (0);
}
bus_space_unmap(iot, ioh, iosize);
ia->ia_iosize = iosize;
return (1);
}
void
sfr_attach(struct device *parent, struct device *self, void *aux)
{
struct sfr_softc *sc = (void *) self;
struct isa_attach_args *ia = aux;
sc->c.iot = ia->ia_iot;
sc->mute = 0;
sc->vol = 0;
sc->freq = MIN_FM_FREQ;
sc->c.period = SF16FMR_FREQ_PERIOD;
sc->c.clock = SF16FMR_FREQ_CLOCK;
sc->c.data = SF16FMR_FREQ_DATA;
/* remap I/O */
if (bus_space_map(sc->c.iot, ia->ia_iobase, ia->ia_iosize,
0, &sc->c.ioh)) {
printf(": bus_space_map() failed\n");
return;
}
printf(": SoundForte RadioLink SF16-FMR\n");
sfr_set_freq(&sc->c, sc->freq);
sfr_set_vol(sc->c.iot, sc->c.ioh, sc->vol, sc->mute);
radio_attach_mi(&sfr_hw_if, sc, &sc->sc_dev);
}
int
sfr_find(bus_space_tag_t iot, bus_space_handle_t ioh)
{
struct sfr_softc sc;
u_int32_t freq;
sc.c.iot = iot;
sc.c.ioh = ioh;
sc.c.offset = 0;
sc.c.period = SF16FMR_FREQ_PERIOD;
sc.c.clock = SF16FMR_FREQ_CLOCK;
sc.c.data = SF16FMR_FREQ_DATA;
/*
* 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;
/* Initialize the tc921x chip */
sfr_set_freq(&sc.c, sc.freq);
/* Do actual frequency setting */
freq = sfr_set_freq(&sc.c, sc.freq);
if (sc.freq == freq)
return 1;
return 0;
}
int
sfr_get_info(void *v, struct radio_info *ri)
{
struct sfr_softc *sc = v;
ri->mute = sc->mute;
ri->volume = sc->vol;
ri->caps = SF16FMR_CAPABILITIES;
ri->freq = sc->freq = sfr_get_freq(&sc->c);
/* Not supported */
ri->stereo = 1; /* Always stereo */
ri->rfreq = 0;
ri->lock = 0;
return (0);
}
int
sfr_set_info(void *v, struct radio_info *ri)
{
struct sfr_softc *sc = v;
sc->mute = ri->mute ? 1 : 0;
sc->vol = ri->volume;
sc->freq = sfr_set_freq(&sc->c, ri->freq);
sc->vol = sfr_set_vol(sc->c.iot, sc->c.ioh, sc->vol, sc->mute);
return (0);
}
u_int32_t
sfr_set_freq(struct tc921x_t *c, u_int32_t freq) {
u_int32_t data = 0ul;
data |= tc921x_encode_freq(freq);
data |= TC921X_D0_REF_FREQ_10_KHZ;
data |= TC921X_D0_PULSE_SWALLOW_FM_MODE;
data |= TC921X_D0_OSC_7POINT2_MHZ;
data |= TC921X_D0_OUT_CONTROL_ON;
tc921x_write_addr(c, 0xD0, data);
data = TC921X_D2_IO_PORT_OUTPUT(4);
tc921x_write_addr(c, 0xD2, data);
return sfr_get_freq(c);
}
u_int32_t
sfr_get_freq(struct tc921x_t *c) {
return tc921x_decode_freq(tc921x_read_addr(c, 0xD1));
}
u_int8_t
sfr_set_vol(bus_space_tag_t iot, bus_space_handle_t ioh, u_int8_t vol, int mute) {
u_int32_t v;
u_int8_t ret;
ret = mute ? 0 : vol;
v = pt2254a_encode_volume(&ret, 255);
sfr_send_volume(iot, ioh,
pt2254a_compose_register(v, v, USE_CHANNEL, USE_CHANNEL));
return ret;
}
void
sfr_send_volume(bus_space_tag_t iot, bus_space_handle_t ioh, u_int32_t vol) {
u_int8_t one, zero;
int i;
one = zero = SF16FMR_FREQ_STEADY;
one = zero |= SF16FMR_VOLU_STROBE_OFF;
one |= SF16FMR_VOLU_DATA_ON;
zero |= SF16FMR_VOLU_DATA_OFF;
bus_space_write_1(iot, ioh, 0, SF16FMR_VOLU_STROBE_OFF | SF16FMR_FREQ_STEADY);
for (i = 0; i < PT2254A_REGISTER_LENGTH; i++) {
if (vol & (1 << i)) {
bus_space_write_1(iot, ioh, 0,
one | SF16FMR_VOLU_CLOCK_OFF);
bus_space_write_1(iot, ioh, 0,
one | SF16FMR_VOLU_CLOCK_ON);
} else {
bus_space_write_1(iot, ioh, 0,
zero | SF16FMR_VOLU_CLOCK_OFF);
bus_space_write_1(iot, ioh, 0,
zero | SF16FMR_VOLU_CLOCK_ON);
}
}
/* Latch the data */
bus_space_write_1(iot, ioh, 0, SF16FMR_VOLU_STROBE_ON | SF16FMR_FREQ_STEADY);
bus_space_write_1(iot, ioh, 0, SF16FMR_VOLU_STROBE_OFF | SF16FMR_FREQ_STEADY);
}