/* $NetBSD: imx_genfb.c,v 1.1 2015/12/21 04:26:28 hkenken Exp $ */
/*
* Copyright (c) 2015 Genetec Corporation. All rights reserved.
* Written by Hashimoto Kenichi for Genetec Corporation.
*
* 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 GENETEC CORPORATION ``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 GENETEC CORPORATION
* 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: imx_genfb.c,v 1.1 2015/12/21 04:26:28 hkenken Exp $");
#include "opt_ddb.h"
#include "opt_genfb.h"
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/device.h>
#include <sys/intr.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <arm/imx/imx51reg.h>
#include <arm/imx/imx51var.h>
#include <arm/imx/imx51_ipuv3var.h>
#if defined(DDB)
#include <machine/db_machdep.h>
#include <ddb/db_extern.h>
#endif
#include <dev/videomode/videomode.h>
#include <dev/wsfb/genfbvar.h>
struct imx_genfb_softc {
struct genfb_softc sc_gen;
bus_dma_tag_t sc_dmat;
bus_dma_segment_t *sc_dmasegs;
int sc_ndmasegs;
};
#if defined(DDB)
static void imx_genfb_ddb_trap_callback(int);
static device_t imx_genfb_consoledev = NULL;
#endif
static int imx_genfb_match(device_t, cfdata_t, void *);
static void imx_genfb_attach(device_t, device_t, void *);
static int imx_genfb_ioctl(void *, void *, u_long, void *, int, lwp_t *);
static paddr_t imx_genfb_mmap(void *, void *, off_t, int);
static bool imx_genfb_shutdown(device_t, int);
CFATTACH_DECL_NEW(imx_genfb, sizeof(struct imx_genfb_softc),
imx_genfb_match, imx_genfb_attach, NULL, NULL);
static int
imx_genfb_match(device_t parent, cfdata_t cf, void *aux)
{
return 1;
}
static void
imx_genfb_attach(device_t parent, device_t self, void *aux)
{
struct imx_genfb_softc *sc = device_private(self);
struct imxfb_attach_args * const ifb = aux;
prop_dictionary_t cfg = device_properties(self);
struct genfb_ops ops;
sc->sc_gen.sc_dev = self;
sc->sc_dmat = ifb->ifb_dmat;
sc->sc_dmasegs = ifb->ifb_dmasegs;
sc->sc_ndmasegs = ifb->ifb_ndmasegs;
prop_dictionary_set_uint32(cfg, "width", ifb->ifb_width);
prop_dictionary_set_uint32(cfg, "height", ifb->ifb_height);
prop_dictionary_set_uint8(cfg, "depth", ifb->ifb_depth);
prop_dictionary_set_uint16(cfg, "linebytes", ifb->ifb_stride);
prop_dictionary_set_uint32(cfg, "address", 0);
prop_dictionary_set_uint32(cfg, "virtual_address",
(uintptr_t)ifb->ifb_fb);
genfb_init(&sc->sc_gen);
if (sc->sc_gen.sc_width == 0 || sc->sc_gen.sc_fbsize == 0) {
aprint_normal(": disabled\n");
return;
}
pmf_device_register1(self, NULL, NULL, imx_genfb_shutdown);
memset(&ops, 0, sizeof(ops));
ops.genfb_ioctl = imx_genfb_ioctl;
ops.genfb_mmap = imx_genfb_mmap;
aprint_naive("\n");
bool is_console = false;
prop_dictionary_get_bool(cfg, "is_console", &is_console);
if (is_console)
aprint_normal(": switching to framebuffer console\n");
else
aprint_normal("\n");
genfb_attach(&sc->sc_gen, &ops);
#if defined(DDB)
if (is_console) {
imx_genfb_consoledev = self;
db_trap_callback = imx_genfb_ddb_trap_callback;
}
#endif
}
static int
imx_genfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, lwp_t *l)
{
struct wsdisplayio_bus_id *busid;
switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_IMXIPU;
return 0;
case WSDISPLAYIO_GET_BUSID:
busid = data;
busid->bus_type = WSDISPLAYIO_BUS_SOC;
return 0;
default:
return EPASSTHROUGH;
}
}
static paddr_t
imx_genfb_mmap(void *v, void *vs, off_t offset, int prot)
{
struct imx_genfb_softc *sc = v;
KASSERT(offset >= 0);
KASSERT(offset < sc->sc_dmasegs[0].ds_len);
return bus_dmamem_mmap(sc->sc_dmat, sc->sc_dmasegs, sc->sc_ndmasegs,
offset, prot, BUS_DMA_PREFETCHABLE);
}
static bool
imx_genfb_shutdown(device_t self, int flags)
{
genfb_enable_polling(self);
return true;
}
#if defined(DDB)
static void
imx_genfb_ddb_trap_callback(int where)
{
if (imx_genfb_consoledev == NULL)
return;
if (where)
genfb_enable_polling(imx_genfb_consoledev);
else
genfb_disable_polling(imx_genfb_consoledev);
}
#endif
void
imx_genfb_set_videomode(device_t dev, u_int width, u_int height)
{
struct imx_genfb_softc *sc = device_private(dev);
if (sc->sc_gen.sc_width != width || sc->sc_gen.sc_height != height) {
device_printf(sc->sc_gen.sc_dev,
"mode switching not yet supported\n");
}
}