void
zts_attach(struct device *parent, struct device *self, void *aux)
{
struct zts_softc *sc = (struct zts_softc *)self;
struct wsmousedev_attach_args a;
timeout_set(&sc->sc_ts_poll, zts_poll, sc);
/* Initialize ADS7846 Difference Reference mode */
(void)zssp_ic_send(ZSSP_IC_ADS7846,
(1<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
delay(5000);
(void)zssp_ic_send(ZSSP_IC_ADS7846,
(3<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
delay(5000);
(void)zssp_ic_send(ZSSP_IC_ADS7846,
(4<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
delay(5000);
(void)zssp_ic_send(ZSSP_IC_ADS7846,
(5<<ADSCTRL_ADR_SH) | (1<<ADSCTRL_STS_SH));
delay(5000);
a.accessops = &zts_accessops;
a.accesscookie = sc;
printf("\n");
/* Copy the default scalue values to each softc */
bcopy(&zts_scale, &sc->sc_tsscale, sizeof(sc->sc_tsscale));
sc->sc_wsmousedev = config_found(self, &a, wsmousedevprint);
}
void
lcd_set_brightness_internal(int newval)
{
static int curval = 1;
int i;
/*
* It appears that the C3000 backlight can draw too much power if we
* switch it from a low to a high brightness. Increasing brightness
* in steps avoids this issue.
*/
if (newval > curval) {
for (i = curval + 1; i <= newval; i++) {
(void)zssp_ic_send(ZSSP_IC_LZ9JG18,
CURRENT_BACKLIGHT[i].duty);
scoop_set_backlight(CURRENT_BACKLIGHT[i].on,
CURRENT_BACKLIGHT[i].cont);
delay(5000);
}
} else {
(void)zssp_ic_send(ZSSP_IC_LZ9JG18,
CURRENT_BACKLIGHT[newval].duty);
scoop_set_backlight(CURRENT_BACKLIGHT[newval].on,
CURRENT_BACKLIGHT[newval].cont);
}
curval = newval;
}
int
zts_activate(struct device *self, int act)
{
struct zts_softc *sc = (struct zts_softc *)self;
switch (act) {
case DVACT_SUSPEND:
if (sc->sc_enabled == 0)
break;
sc->sc_running = 0;
#if 0
pxa2x0_gpio_intr_disestablish(sc->sc_gh);
#endif
timeout_del(&sc->sc_ts_poll);
pxa2x0_gpio_intr_mask(sc->sc_gh);
/* Turn off reference voltage but leave ADC on. */
(void)zssp_ic_send(ZSSP_IC_ADS7846, (1 << ADSCTRL_PD1_SH) |
(1 << ADSCTRL_ADR_SH) | (1 << ADSCTRL_STS_SH));
pxa2x0_gpio_set_function(GPIO_TP_INT_C3K,
GPIO_OUT | GPIO_SET);
break;
case DVACT_RESUME:
if (sc->sc_enabled == 0)
break;
pxa2x0_gpio_set_function(GPIO_TP_INT_C3K, GPIO_IN);
pxa2x0_gpio_intr_mask(sc->sc_gh);
/* Enable automatic low power mode. */
(void)zssp_ic_send(ZSSP_IC_ADS7846,
(4 << ADSCTRL_ADR_SH) | (1 << ADSCTRL_STS_SH));
#if 0
sc->sc_gh = pxa2x0_gpio_intr_establish(GPIO_TP_INT_C3K,
IST_EDGE_FALLING, IPL_TTY, zts_irq, sc,
sc->sc_dev.dv_xname);
#else
pxa2x0_gpio_intr_unmask(sc->sc_gh);
#endif
sc->sc_running = 1;
break;
}
return 0;
}
int
max1111_adc_value(int chan)
{
return ((int)zssp_ic_send(ZSSP_IC_MAX1111, MAXCTRL_PD0 |
MAXCTRL_PD1 | MAXCTRL_SGL | MAXCTRL_UNI |
(chan << MAXCTRL_SEL_SHIFT) | MAXCTRL_STR));
}
