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/* $OpenBSD: pxa27x_kpc.c,v 1.3 2014/01/26 17:48:07 miod Exp $ */
/*
* Copyright (c) 2009 Marek Vasut <marex@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/timeout.h>
#include <sys/systm.h>
#include <arch/arm/xscale/pxa2x0_gpio.h>
#include <arch/arm/xscale/pxa2x0reg.h>
#include <arch/arm/xscale/pxa2x0var.h>
#include <arch/arm/xscale/pxa27x_kpc.h>
int pxa27x_kpc_enable(void *, int);
void pxa27x_kpc_setleds(void *, int);
int pxa27x_kpc_ioctl(void *, u_long, caddr_t, int, struct proc *);
inline void pxa27x_kpc_submit(struct pxa27x_kpc_softc *, int);
int pxa27x_kpc_intr(void *);
struct cfdriver pxa27x_kpc_cd = {
NULL, "pxa27x_kpc", DV_DULL,
};
struct wskbd_accessops pxa27x_kpc_accessops = {
pxa27x_kpc_enable,
pxa27x_kpc_setleds,
pxa27x_kpc_ioctl,
};
struct wscons_keydesc pxa27x_kpc_keydesctab[] = {
{KB_US, 0, 0, 0},
{0, 0, 0, 0},
};
struct wskbd_mapdata pxa27x_kpc_mapdata = {
pxa27x_kpc_keydesctab, KB_US | KB_DEFAULT,
};
void pxa27x_kpc_cngetc(void *, u_int *, int *);
void pxa27x_kpc_cnpollc(void *, int);
void pxa27x_kpc_cnbell(void *, u_int, u_int, u_int);
struct wskbd_consops pxa27x_kpc_consops = {
pxa27x_kpc_cngetc,
pxa27x_kpc_cnpollc,
pxa27x_kpc_cnbell,
};
int
pxa27x_kpc_match(void *aux)
{
struct pxaip_attach_args *pxa = aux;
if (pxa->pxa_addr != PXA2X0_KPC_BASE)
return 0; /* Wrong device */
if ((cputype & ~CPU_ID_XSCALE_COREREV_MASK) != CPU_ID_PXA27X)
return 0; /* Wrong CPU */
pxa->pxa_size = PXA2X0_KPC_SIZE;
return 1;
}
void
pxa27x_kpc_attach(struct pxa27x_kpc_softc *sc, void *aux)
{
struct pxaip_attach_args *pxa = aux;
struct wskbddev_attach_args a;
sc->sc_iot = pxa->pxa_sa.sa_iot;
if (bus_space_map(sc->sc_iot, pxa->pxa_addr, pxa->pxa_size, 0,
&sc->sc_ioh) != 0) {
printf(": can't map regs\n");
goto err;
}
pxa2x0_clkman_config(CKEN_KEY, 1);
sc->sc_ih = pxa2x0_intr_establish(PXA2X0_INT_KPC, IPL_TTY,
pxa27x_kpc_intr, sc, sc->sc_dev.dv_xname);
if (!sc->sc_ih) {
printf(": can't establish interrupt\n");
goto err2;
}
bus_space_write_4(sc->sc_iot, sc->sc_ioh, KPC_KPC, KPC_MIE | KPC_ME |
KPC_MS(0xff) | KPC_IMKP | KPC_MI | KPC_MKCN(sc->sc_cols) |
KPC_MKRN(sc->sc_rows) | KPC_ASACT);
bus_space_write_4(sc->sc_iot, sc->sc_ioh, KPC_KPKDI, 0x30);
pxa27x_kpc_keydesctab[0].map_size = sc->sc_ksize;
pxa27x_kpc_keydesctab[0].map = sc->sc_kcodes;
a.console = 1;
a.keymap = &pxa27x_kpc_mapdata;
a.accessops = &pxa27x_kpc_accessops;
a.accesscookie = sc;
printf("\n");
wskbd_cnattach(&pxa27x_kpc_consops, sc, &pxa27x_kpc_mapdata);
sc->sc_wskbddev = config_found((struct device *)sc, &a, wskbddevprint);
return;
err2:
bus_space_unmap(sc->sc_iot, sc->sc_ioh, PXA2X0_KPC_SIZE);
err:
return;
}
inline void
pxa27x_kpc_submit(struct pxa27x_kpc_softc *sc, int event)
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
u_char key;
if (sc->sc_rawkbd) {
key = sc->sc_key;
if (event == WSCONS_EVENT_KEY_DOWN)
key |= 0x80;
wskbd_rawinput(sc->sc_wskbddev, &key, 1);
} else
#endif
wskbd_input(sc->sc_wskbddev, event, sc->sc_key);
}
int
pxa27x_kpc_intr(void *arg)
{
u_int32_t val;
int row = -1, col = -1;
int i = 0;
struct pxa27x_kpc_softc *sc = arg;
val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, KPC_KPC);
if (!(val & KPC_MI)) /* interrupt didn't happen .. what ?! */
return 0;
val = bus_space_read_4(sc->sc_iot, sc->sc_ioh, KPC_KPAS);
if (val & KPAS_SO) /* bogus interrupt */
return 0;
if (val & KPAS_MUKP) { /* keypress */
col = val & KPAS_CP;
row = (val & KPAS_RP) >> 4;
for (i = 0; i < sc->sc_ksize; i++)
if (sc->sc_kmap[i].row == row &&
sc->sc_kmap[i].col == col) {
sc->sc_key = sc->sc_kmap[i].key;
pxa27x_kpc_submit(sc, WSCONS_EVENT_KEY_DOWN);
break;
}
} else /* no keypress aka keyrelease */
pxa27x_kpc_submit(sc, WSCONS_EVENT_KEY_UP);
return 1;
}
int
pxa27x_kpc_enable(void *v, int power)
{
return 0;
}
void
pxa27x_kpc_setleds(void *v, int power)
{
}
int
pxa27x_kpc_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
struct pxa27x_kpc_softc *sc = v;
#endif
switch (cmd) {
case WSKBDIO_GTYPE:
*(int *)data = WSKBD_TYPE_KPC;
return 0;
case WSKBDIO_SETLEDS:
return 0;
case WSKBDIO_GETLEDS:
*(int *)data = 0;
return 0;
#ifdef WSDISPLAY_COMPAT_RAWKBD
case WSKBDIO_SETMODE:
sc->sc_rawkbd = *(int *)data == WSKBD_RAW;
return 0;
#endif
}
return -1;
}
void
pxa27x_kpc_cnbell(void *v, u_int pitch, u_int period, u_int volume)
{
}
void
pxa27x_kpc_cngetc(void *v, u_int *type, int *data)
{
}
void
pxa27x_kpc_cnpollc(void *v, int on)
{
}
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