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NetBSD/sys/arch/hpcmips/dev/ucbtp.c

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/* $NetBSD: ucbtp.c,v 1.3 2000/03/04 19:36:34 uch Exp $ */
/*
* Copyright (c) 2000, by UCHIYAMA Yasushi
* 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. The name of the developer may NOT be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
*
*/
/*
* Device driver for PHILIPS UCB1200 Advanced modem/audio analog front-end
* Touch panel part.
*/
#define UCBTPDEBUG
#include "opt_tx39_debug.h"
#include "opt_use_poll.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/bootinfo.h> /* bootinfo */
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#include <hpcmips/dev/tpcalibvar.h>
#include <hpcmips/tx/tx39var.h>
#include <hpcmips/tx/tx39sibvar.h>
#include <hpcmips/tx/tx39sibreg.h>
#include <hpcmips/tx/tx39icureg.h>
#ifdef TX391X
#include <hpcmips/tx/tx3912videovar.h> /* debug */
#endif
#include <hpcmips/dev/ucb1200var.h>
#include <hpcmips/dev/ucb1200reg.h>
#include <hpcmips/tx/txsnd.h>
#ifdef UCBTPDEBUG
int ucbtp_debug = 1;
#define DPRINTF(arg) if (ucbtp_debug) printf arg;
#define DPRINTFN(n, arg) if (ucbtp_debug > (n)) printf arg;
#else
#define DPRINTF(arg)
#define DPRINTFN(n, arg)
#endif
enum ucbts_stat {
UCBTS_STAT_DISABLE,
UCBTS_STAT_RELEASE,
UCBTS_STAT_TOUCH,
UCBTS_STAT_DRAG,
};
#define UCBTS_POSX 1
#define UCBTS_POSY 2
#define UCBTS_PRESS 3
#define UCBTS_PRESS_THRESHOLD 80
#define UCBTS_TAP_THRESHOLD 5
enum ucbadc_state {
/* 0 */ UCBADC_IDLE,
/* 1 */ UCBADC_ADC_INIT,
/* 2 */ UCBADC_ADC_FINI,
/* 3 */ UCBADC_MEASUMENT_INIT,
/* 4 */ UCBADC_MEASUMENT_FINI,
/* 5 */ UCBADC_ADC_ENABLE,
/* 6 */ UCBADC_ADC_START0,
/* 7 */ UCBADC_ADC_START1,
/* 8 */ UCBADC_ADC_DATAREAD,
/* 9 */ UCBADC_ADC_DATAREAD_WAIT,
/*10 */ UCBADC_ADC_DISABLE,
/*11 */ UCBADC_ADC_INTRMODE,
/*12 */ UCBADC_ADC_INPUT,
/*13 */ UCBADC_INTR_ACK0,
/*14 */ UCBADC_INTR_ACK1,
/*15 */ UCBADC_INTR_ACK2,
/*16 */ UCBADC_REGREAD,
/*17 */ UCBADC_REGWRITE
};
struct ucbtp_softc {
struct device sc_dev;
struct device *sc_sib; /* parent (TX39 SIB module) */
struct device *sc_ucb; /* parent (UCB1200 module) */
tx_chipset_tag_t sc_tc;
enum ucbts_stat sc_stat;
int sc_polling;
int sc_polling_finish;
void *sc_pollh;
struct tpcalib_softc sc_tpcalib;
int sc_calibrated;
/* measurement value */
int sc_x, sc_y, sc_p;
int sc_ox, sc_oy;
/*
* touch panel state machine
*/
void *sm_ih; /* TX39 SIB subframe 0 interrupt handler */
int sm_addr; /* UCB1200 register address */
u_int32_t sm_reg; /* UCB1200 register data & TX39 SIB header */
int sm_tmpreg;
#define UCBADC_RETRY_DEFAULT 200
int sm_retry; /* retry counter */
enum ucbadc_state sm_state;
int sm_measurement; /* X, Y, Pressure */
#define UCBADC_MEASUREMENT_X 0
#define UCBADC_MEASUREMENT_Y 1
#define UCBADC_MEASUREMENT_PRESSURE 2
int sm_returnstate;
int sm_read_state, sm_write_state;
int sm_writing; /* writing state flag */
u_int32_t sm_write_val; /* temporary buffer */
int sm_rw_retry; /* retry counter for r/w */
/* wsmouse */
struct device *sc_wsmousedev;
};
int ucbtp_match __P((struct device*, struct cfdata*, void*));
void ucbtp_attach __P((struct device*, struct device*, void*));
int ucbtp_sibintr __P((void*));
int ucbtp_poll __P((void*));
int ucbtp_adc_async __P((void*));
int ucbtp_input __P((struct ucbtp_softc*));
int ucbtp_busy __P((void*));
int ucbtp_enable __P((void*));
int ucbtp_ioctl __P((void*, u_long, caddr_t, int, struct proc*));
void ucbtp_disable __P((void*));
struct cfattach ucbtp_ca = {
sizeof(struct ucbtp_softc), ucbtp_match, ucbtp_attach
};
const struct wsmouse_accessops ucbtp_accessops = {
ucbtp_enable,
ucbtp_ioctl,
ucbtp_disable,
};
/*
* XXX currently no calibration method. this is temporary hack.
*/
#include <machine/platid.h>
struct wsmouse_calibcoords *calibration_sample_lookup __P((void));
int ucbtp_calibration __P((struct ucbtp_softc*));
struct calibration_sample_table {
platid_t cst_platform;
struct wsmouse_calibcoords cst_sample;
} calibration_sample_table[] = {
{{{PLATID_WILD, PLATID_MACH_COMPAQ_C_8XX}}, /* uch machine */
{ 0, 0, 639, 239, 5,
{{ 507, 510, 320, 120 },
{ 898, 757, 40, 40 },
{ 900, 255, 40, 200 },
{ 109, 249, 600, 200 },
{ 110, 753, 600, 40 }}}},
{{{PLATID_WILD, PLATID_MACH_COMPAQ_C_2010}}, /* uch machine */
{ 0, 0, 639, 239, 5,
{{ 506, 487, 320, 120 },
{ 880, 250, 40, 40 },
{ 880, 718, 40, 200 },
{ 140, 726, 600, 200 },
{ 137, 250, 600, 40 }}}},
{{{PLATID_WILD, PLATID_MACH_SHARP_MOBILON_HC4100}}, /* uch machine */
{ 0, 0, 639, 239, 5,
{{ 497, 501, 320, 120 },
{ 752, 893, 40, 40 },
{ 242, 891, 40, 200 },
{ 241, 115, 600, 200 },
{ 747, 101, 600, 40 }}}},
{{{PLATID_UNKNOWN, PLATID_UNKNOWN}},
{ 0, 0, 639, 239, 5,
{{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0},
{0, 0, 0, 0}}}},
};
struct wsmouse_calibcoords *
calibration_sample_lookup()
{
struct calibration_sample_table *tab;
platid_mask_t mask;
for (tab = calibration_sample_table;
tab->cst_platform.dw.dw1 != PLATID_UNKNOWN; tab++) {
mask = PLATID_DEREF(&tab->cst_platform);
if (platid_match(&platid, &mask)) {
return &tab->cst_sample;
}
}
return 0;
}
int
ucbtp_calibration(sc)
struct ucbtp_softc *sc;
{
struct wsmouse_calibcoords *cs;
#ifdef TX391X
tx3912video_calibration_pattern(); /* debug */
#endif
tpcalib_init(&sc->sc_tpcalib);
if (!(cs = calibration_sample_lookup())) {
printf("no calibration data");
return 1;
}
sc->sc_calibrated =
tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
(caddr_t)cs, 0, 0) == 0 ? 1 : 0;
if (!sc->sc_calibrated)
printf("not ");
printf("calibrated");
return 0;
}
int
ucbtp_match(parent, cf, aux)
struct device *parent;
struct cfdata *cf;
void *aux;
{
return 1;
}
void
ucbtp_attach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct ucb1200_attach_args *ucba = aux;
struct ucbtp_softc *sc = (void*)self;
struct wsmousedev_attach_args wsmaa;
tx_chipset_tag_t tc;
tc = sc->sc_tc = ucba->ucba_tc;
sc->sc_sib = ucba->ucba_sib;
sc->sc_ucb = ucba->ucba_ucb;
printf(": ");
/* touch panel interrupt */
tx_intr_establish(tc, MAKEINTR(1, TX39_INTRSTATUS1_SIBIRQPOSINT),
IST_EDGE, IPL_TTY, ucbtp_sibintr, sc);
/* attempt to calibrate touch panel */
ucbtp_calibration(sc);
printf("\n");
wsmaa.accessops = &ucbtp_accessops;
wsmaa.accesscookie = sc;
ucb1200_state_install(parent, ucbtp_busy, self, UCB1200_TP_MODULE);
/*
* attach the wsmouse
*/
sc->sc_wsmousedev = config_found(self, &wsmaa, wsmousedevprint);
}
int
ucbtp_busy(arg)
void *arg;
{
struct ucbtp_softc *sc = arg;
return sc->sm_state != UCBADC_IDLE;
}
int
ucbtp_poll(arg)
void *arg;
{
struct ucbtp_softc *sc = arg;
if (!ucb1200_state_idle(sc->sc_ucb)) /* subframe0 busy */
return POLL_CONT;
if (sc->sc_polling_finish) {
sc->sc_polling_finish = 0;
return POLL_END;
}
/* execute A-D converter */
sc->sm_state = UCBADC_ADC_INIT;
ucbtp_adc_async(sc);
return POLL_CONT;
}
int
ucbtp_sibintr(arg)
void *arg;
{
struct ucbtp_softc *sc = arg;
sc->sc_stat = UCBTS_STAT_TOUCH;
/* click! */
tx_sound_click(sc->sc_tc);
/* invoke touch panel polling */
if (!sc->sc_polling) {
sc->sc_pollh = tx39_poll_establish(sc->sc_tc, 1, IST_EDGE,
ucbtp_poll, sc);
if (!sc->sc_pollh) {
printf("%s: can't poll\n", sc->sc_dev.dv_xname);
}
}
/* don't acknoledge interrupt until polling finish */
return 0;
}
#define REGWRITE(addr, reg, ret) ( \
sc->sm_addr = (addr), \
sc->sm_reg = (reg), \
sc->sm_returnstate = (ret),\
sc->sm_state = UCBADC_REGWRITE)
#define REGREAD(addr, ret) ( \
sc->sm_addr = (addr), \
sc->sm_returnstate = (ret), \
sc->sm_state = UCBADC_REGREAD)
int
ucbtp_adc_async(arg)
void *arg;
{
struct ucbtp_softc *sc = arg;
tx_chipset_tag_t tc = sc->sc_tc;
txreg_t reg;
u_int16_t reg16;
DPRINTFN(9, ("state: %d\n", sc->sm_state));
switch (sc->sm_state) {
default:
panic("ucbtp_adc: invalid state %d", sc->sm_state);
/* NOTREACHED */
break;
case UCBADC_IDLE:
/* nothing to do */
break;
case UCBADC_ADC_INIT:
sc->sc_polling++;
sc->sc_stat = UCBTS_STAT_DRAG;
/* enable heart beat of this state machine */
sc->sm_ih = tx_intr_establish(
tc,
MAKEINTR(1, TX39_INTRSTATUS1_SIBSF0INT),
IST_EDGE, IPL_TTY, ucbtp_adc_async, sc);
sc->sm_state = UCBADC_MEASUMENT_INIT;
break;
case UCBADC_ADC_FINI:
/* disable heart beat of this state machine */
tx_intr_disestablish(tc, sc->sm_ih);
sc->sm_state = UCBADC_IDLE;
break;
case UCBADC_MEASUMENT_INIT:
switch (sc->sm_measurement) {
default:
panic("unknown measurement spec.");
/* NOTREACHED */
break;
case UCBADC_MEASUREMENT_X:
REGWRITE(UCB1200_TSCTRL_REG,
UCB1200_TSCTRL_XPOSITION,
UCBADC_ADC_ENABLE);
break;
case UCBADC_MEASUREMENT_Y:
REGWRITE(UCB1200_TSCTRL_REG,
UCB1200_TSCTRL_YPOSITION,
UCBADC_ADC_ENABLE);
break;
case UCBADC_MEASUREMENT_PRESSURE:
REGWRITE(UCB1200_TSCTRL_REG,
UCB1200_TSCTRL_PRESSURE,
UCBADC_ADC_ENABLE);
break;
}
break;
case UCBADC_MEASUMENT_FINI:
switch (sc->sm_measurement) {
case UCBADC_MEASUREMENT_X:
sc->sm_measurement = UCBADC_MEASUREMENT_Y;
sc->sm_state = UCBADC_MEASUMENT_INIT;
break;
case UCBADC_MEASUREMENT_Y:
sc->sm_measurement = UCBADC_MEASUREMENT_PRESSURE;
sc->sm_state = UCBADC_MEASUMENT_INIT;
break;
case UCBADC_MEASUREMENT_PRESSURE:
sc->sm_measurement = UCBADC_MEASUREMENT_X;
/* measument complete. pass down to wsmouse_input */
sc->sm_state = UCBADC_ADC_INPUT;
break;
}
break;
case UCBADC_ADC_ENABLE:
switch (sc->sm_measurement) {
case UCBADC_MEASUREMENT_PRESSURE:
/* FALLTHROUGH */
case UCBADC_MEASUREMENT_X:
sc->sm_tmpreg = UCB1200_ADCCTRL_INPUT_SET(
UCB1200_ADCCTRL_ENABLE,
UCB1200_ADCCTRL_INPUT_TSPX);
REGWRITE(UCB1200_ADCCTRL_REG, sc->sm_tmpreg,
UCBADC_ADC_START0);
break;
case UCBADC_MEASUREMENT_Y:
sc->sm_tmpreg = UCB1200_ADCCTRL_INPUT_SET(
UCB1200_ADCCTRL_ENABLE,
UCB1200_ADCCTRL_INPUT_TSPY);
REGWRITE(UCB1200_ADCCTRL_REG, sc->sm_tmpreg,
UCBADC_ADC_START0);
break;
}
break;
case UCBADC_ADC_START0:
REGWRITE(UCB1200_ADCCTRL_REG,
sc->sm_tmpreg | UCB1200_ADCCTRL_START,
UCBADC_ADC_START1);
break;
case UCBADC_ADC_START1:
REGWRITE(UCB1200_ADCCTRL_REG,
sc->sm_tmpreg,
UCBADC_ADC_DATAREAD);
sc->sm_retry = UCBADC_RETRY_DEFAULT;
break;
case UCBADC_ADC_DATAREAD:
REGREAD(UCB1200_ADCDATA_REG, UCBADC_ADC_DATAREAD_WAIT);
break;
case UCBADC_ADC_DATAREAD_WAIT:
reg16 = TX39_SIBSF0_REGDATA(sc->sm_reg);
if (!(reg16 & UCB1200_ADCDATA_INPROGRESS) &&
--sc->sm_retry > 0) {
sc->sm_state = UCBADC_ADC_DATAREAD;
} else {
if (sc->sm_retry <= 0) {
printf("dataread failed\n");
sc->sm_state = UCBADC_ADC_FINI;
break;
}
switch (sc->sm_measurement) {
case UCBADC_MEASUREMENT_X:
sc->sc_x = UCB1200_ADCDATA(reg16);
DPRINTFN(9, ("x=%d\n", sc->sc_x));
break;
case UCBADC_MEASUREMENT_Y:
sc->sc_y = UCB1200_ADCDATA(reg16);
DPRINTFN(9, ("y=%d\n", sc->sc_y));
break;
case UCBADC_MEASUREMENT_PRESSURE:
sc->sc_p = UCB1200_ADCDATA(reg16);
DPRINTFN(9, ("p=%d\n", sc->sc_p));
break;
}
sc->sm_state = UCBADC_ADC_DISABLE;
}
break;
case UCBADC_ADC_DISABLE:
REGWRITE(UCB1200_ADCCTRL_REG, 0, UCBADC_ADC_INTRMODE);
break;
case UCBADC_ADC_INTRMODE:
REGWRITE(UCB1200_TSCTRL_REG, UCB1200_TSCTRL_INTERRUPT,
UCBADC_MEASUMENT_FINI);
break;
case UCBADC_ADC_INPUT:
if (ucbtp_input(sc) == 0)
sc->sm_state = UCBADC_ADC_FINI;
else
sc->sm_state = UCBADC_INTR_ACK0;
break;
case UCBADC_INTR_ACK0:
REGREAD(UCB1200_INTSTAT_REG, UCBADC_INTR_ACK1);
break;
case UCBADC_INTR_ACK1:
REGWRITE(UCB1200_INTSTAT_REG, sc->sm_reg, UCBADC_INTR_ACK2);
break;
case UCBADC_INTR_ACK2:
sc->sc_polling_finish = 1;
REGWRITE(UCB1200_INTSTAT_REG, 0, UCBADC_ADC_FINI);
break;
/*
* UCB1200 register access state
*/
case UCBADC_REGREAD:
/*
* In : sc->sm_addr
* Out : sc->sm_reg (with SIBtag)
*/
#define TXSIB_REGREAD_INIT 0
#define TXSIB_REGREAD_READ 1
switch (sc->sm_read_state) {
case TXSIB_REGREAD_INIT:
reg = TX39_SIBSF0_REGADDR_SET(0, sc->sm_addr);
tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
sc->sm_rw_retry = UCBADC_RETRY_DEFAULT;
sc->sm_read_state = TXSIB_REGREAD_READ;
break;
case TXSIB_REGREAD_READ:
reg = tx_conf_read(tc, TX39_SIBSF0STAT_REG);
if ((TX39_SIBSF0_REGADDR(reg) != sc->sm_addr) &&
--sc->sm_rw_retry > 0) {
printf("retry!\n");
break;
}
if (sc->sm_rw_retry <= 0) {
printf("sf0read: command failed\n");
sc->sm_state = UCBADC_ADC_FINI;
} else {
sc->sm_reg = reg;
sc->sm_read_state = TXSIB_REGREAD_INIT;
DPRINTFN(9, ("%08x\n", reg));
if (sc->sm_writing)
sc->sm_state = UCBADC_REGWRITE;
else
sc->sm_state = sc->sm_returnstate;
}
break;
}
break;
case UCBADC_REGWRITE:
/*
* In : sc->sm_addr, sc->sm_reg (lower 16bit only)
*/
#define TXSIB_REGWRITE_INIT 0
#define TXSIB_REGWRITE_WRITE 1
switch (sc->sm_write_state) {
case TXSIB_REGWRITE_INIT:
sc->sm_writing = 1;
sc->sm_write_state = TXSIB_REGWRITE_WRITE;
sc->sm_state = UCBADC_REGREAD;
sc->sm_write_val = sc->sm_reg;
break;
case TXSIB_REGWRITE_WRITE:
sc->sm_writing = 0;
sc->sm_write_state = TXSIB_REGWRITE_INIT;
sc->sm_state = sc->sm_returnstate;
reg = sc->sm_reg;
reg |= TX39_SIBSF0_WRITE;
TX39_SIBSF0_REGDATA_CLR(reg);
reg = TX39_SIBSF0_REGDATA_SET(reg, sc->sm_write_val);
tx_conf_write(tc, TX39_SIBSF0CTRL_REG, reg);
break;
}
break;
}
return 0;
}
int
ucbtp_input(sc)
struct ucbtp_softc *sc;
{
int x, y;
if (!sc->sc_calibrated) {
DPRINTFN(2, ("x=%d y=%d p=%d\n",
sc->sc_x, sc->sc_y, sc->sc_p));
printf("ucbtp_input: no calibration data\n");
return 0;
}
tpcalib_trans(&sc->sc_tpcalib, sc->sc_x, sc->sc_y, &x, &y);
DPRINTFN(2, ("x: %d->%d y: %d->%d pressure=%d\n",
sc->sc_x, x, sc->sc_y, y, sc->sc_p));
if (sc->sc_p < UCBTS_PRESS_THRESHOLD) {
sc->sc_stat = UCBTS_STAT_RELEASE;
if (sc->sc_polling < UCBTS_TAP_THRESHOLD) {
DPRINTFN(2, ("TAP!\n"));
/* button 0 DOWN */
wsmouse_input(sc->sc_wsmousedev, 1, 0, 0, 0, 0);
/* button 0 UP */
wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0);
} else {
wsmouse_input(sc->sc_wsmousedev, 0,
sc->sc_ox, sc->sc_oy, 0,
WSMOUSE_INPUT_ABSOLUTE_X |
WSMOUSE_INPUT_ABSOLUTE_Y);
DPRINTFN(2, ("RELEASE\n"));
}
sc->sc_polling = 0;
return 1;
}
#ifdef TX391X /* debug */
if (sc->sc_polling == 1)
tx3912video_dot(x, y);
else
tx3912video_line(sc->sc_ox, sc->sc_oy, x, y);
sc->sc_ox = x, sc->sc_oy = y;
#endif
wsmouse_input(sc->sc_wsmousedev, 1, x, y, 0,
WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
return 0;
}
/*
* access ops.
*/
int
ucbtp_enable(v)
void *v;
{
/* not yet */
return 0;
}
void
ucbtp_disable(v)
void *v;
{
/* not yet */
}
int
ucbtp_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct ucbtp_softc *sc = v;
DPRINTF(("%s(%d): ucbtp_ioctl(%08lx)\n", __FILE__, __LINE__, cmd));
switch (cmd) {
case WSMOUSEIO_GTYPE:
*(u_int *)data = WSMOUSE_TYPE_TPANEL;
break;
case WSMOUSEIO_SRES:
printf("%s(%d): WSMOUSRIO_SRES is not supported",
__FILE__, __LINE__);
break;
case WSMOUSEIO_SCALIBCOORDS:
case WSMOUSEIO_GCALIBCOORDS:
return tpcalib_ioctl(&sc->sc_tpcalib, cmd, data, flag, p);
default:
return (-1);
}
return (0);
}
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