a9332fb303
commit 6d3c4c09226ad6bdd662e3e52489ef294a6ce298
Add terasic_mtl vt(4) framebuffer driver
terasic_mtl can be built with syscons(4) and vt(4) attachments, selected
at compile time.
commit 33240259b47a7c990a5a88a19f133a5600432a4c
Clear terasic_mtl text buffer on attach
commit d188c2d2412953f949624aa35cd07082830943c9
Update terasic vt(4) driver for FreeBSD r269783
commit d1cc54eee852fa4fc9d359d5bb2171d24ec73369
Safety belt to ensure vt(4) fb parameters are correct
commit 76e6d468ef45711d7952786095fc4791289ebb4b
Improve terasic_mtl_vt fdt parsing
- Use OF_getencprop to avoid need for explicit endian handling
(submitted by ray@freebsd.org)
- Check for expected length and correct pointer type
commit 3e2524b8995ab66e8a9295e4c87cbc7126eeddf4
Correct device_printf usage
commit 9e53e3c8e0766414e25662c95b09cc51c92443b0
Switch framebuffer to match host endianness
Xorg and xf86-video-scfb work much better with a native-endian
framebuffer.
commit 0f49259d596321ed85288ac0e1fb4ee1c966df48
Switch DE4 to vt(4) and enable kbdmux
commit 5bc96ebc89db7d134ad478335090c8477c1677c7
Add missing \n in device_printf calls
Submitted by: emaste
Sponsored by: DARPA, AFRL
134 lines
4.2 KiB
C
134 lines
4.2 KiB
C
/*-
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* Copyright (c) 2014 Ed Maste
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* All rights reserved.
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*
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* This software was developed by SRI International and the University of
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* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
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* ("CTSRD"), as part of the DARPA CRASH research programme.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/fbio.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/rman.h>
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#include <dev/fdt/fdt_common.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/terasic/mtl/terasic_mtl.h>
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#include <dev/vt/colors/vt_termcolors.h>
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/*
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* Terasic Multitouch LCD (MTL) vt(4) framebuffer driver.
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*/
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#include <vm/vm.h>
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#include <vm/pmap.h>
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static int
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terasic_mtl_fbd_panel_info(struct terasic_mtl_softc *sc, struct fb_info *info)
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{
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phandle_t node;
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pcell_t dts_value[2];
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int len;
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if ((node = ofw_bus_get_node(sc->mtl_dev)) == -1)
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return (ENXIO);
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/* panel size */
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if ((len = OF_getproplen(node, "panel-size")) != sizeof(dts_value))
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return (ENXIO);
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OF_getencprop(node, "panel-size", dts_value, len);
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info->fb_width = dts_value[0];
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info->fb_height = dts_value[1];
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info->fb_bpp = info->fb_depth = 32;
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info->fb_stride = info->fb_width * (info->fb_depth / 8);
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/*
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* Safety belt to ensure framebuffer params are as expected. May be
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* removed when we have full confidence in fdt / hints params.
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*/
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if (info->fb_width != TERASIC_MTL_FB_WIDTH ||
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info->fb_height != TERASIC_MTL_FB_HEIGHT ||
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info->fb_stride != 3200 ||
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info->fb_bpp != 32 || info->fb_depth != 32) {
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device_printf(sc->mtl_dev,
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"rejecting invalid panel params width=%u height=%u\n",
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(unsigned)info->fb_width, (unsigned)info->fb_height);
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return (EINVAL);
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}
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return (0);
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}
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int
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terasic_mtl_fbd_attach(struct terasic_mtl_softc *sc)
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{
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struct fb_info *info;
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device_t fbd;
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info = &sc->mtl_fb_info;
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info->fb_name = device_get_nameunit(sc->mtl_dev);
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info->fb_pbase = rman_get_start(sc->mtl_pixel_res);
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info->fb_size = rman_get_size(sc->mtl_pixel_res);
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info->fb_vbase = (intptr_t)pmap_mapdev(info->fb_pbase, info->fb_size);
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if (terasic_mtl_fbd_panel_info(sc, info) != 0) {
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device_printf(sc->mtl_dev, "using default panel params\n");
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info->fb_bpp = info->fb_depth = 32;
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info->fb_width = 800;
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info->fb_height = 480;
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info->fb_stride = info->fb_width * (info->fb_depth / 8);
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}
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fbd = device_add_child(sc->mtl_dev, "fbd",
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device_get_unit(sc->mtl_dev));
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if (fbd == NULL) {
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device_printf(sc->mtl_dev, "Failed to attach fbd child\n");
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return (ENXIO);
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}
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if (device_probe_and_attach(fbd) != 0) {
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device_printf(sc->mtl_dev,
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"Failed to attach fbd device\n");
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return (ENXIO);
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}
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return (0);
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}
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void
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terasic_mtl_fbd_detach(struct terasic_mtl_softc *sc)
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{
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panic("%s: detach not implemented", __func__);
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}
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extern device_t fbd_driver;
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extern devclass_t fbd_devclass;
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DRIVER_MODULE(fbd, terasic_mtl, fbd_driver, fbd_devclass, 0, 0);
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