a9332fb303
commit6d3c4c0922Add terasic_mtl vt(4) framebuffer driver terasic_mtl can be built with syscons(4) and vt(4) attachments, selected at compile time. commit33240259b4Clear terasic_mtl text buffer on attach commitd188c2d241Update terasic vt(4) driver for FreeBSD r269783 commitd1cc54eee8Safety belt to ensure vt(4) fb parameters are correct commit76e6d468efImprove 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 commit3e2524b899Correct device_printf usage commit9e53e3c8e0Switch framebuffer to match host endianness Xorg and xf86-video-scfb work much better with a native-endian framebuffer. commit0f49259d59Switch DE4 to vt(4) and enable kbdmux commit5bc96ebc89Add missing \n in device_printf calls Submitted by: emaste Sponsored by: DARPA, AFRL
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
/*-
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* Copyright (c) 2012 Robert N. M. Watson
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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 "opt_syscons.h"
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/condvar.h>
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#include <sys/conf.h>
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#include <sys/consio.h> /* struct vt_mode */
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#include <sys/endian.h>
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#include <sys/fbio.h> /* video_adapter_t */
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/module.h>
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#include <sys/mutex.h>
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#include <sys/rman.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <dev/terasic/mtl/terasic_mtl.h>
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/*
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* Device driver for the Terasic Multitouch LCD (MTL). Three separate
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* sub-drivers that support, respectively, access to device control registers,
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* the pixel frame buffer, and the text frame buffer. The pixel frame buffer
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* is hooked up to vt(4), and the text frame buffer to syscons(4).
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*
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* Eventually, the frame buffer control registers and touch screen input FIFO
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* will end up being separate sub-drivers as well.
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*
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* Note: sub-driver detach routines must check whether or not they have
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* attached as they may be called even if the attach routine hasn't been, on
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* an error.
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*/
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devclass_t terasic_mtl_devclass;
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int
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terasic_mtl_attach(struct terasic_mtl_softc *sc)
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{
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int error;
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error = terasic_mtl_reg_attach(sc);
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if (error)
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goto error;
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error = terasic_mtl_pixel_attach(sc);
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if (error)
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goto error;
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error = terasic_mtl_text_attach(sc);
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if (error)
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goto error;
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/*
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* XXXRW: Once we've attached syscons or vt, we can't detach it, so do
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* it last.
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*/
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#if defined(DEV_VT)
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terasic_mtl_reg_pixel_endian_set(sc, BYTE_ORDER == BIG_ENDIAN);
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error = terasic_mtl_fbd_attach(sc);
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if (error)
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goto error;
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terasic_mtl_blend_pixel_set(sc, TERASIC_MTL_ALPHA_OPAQUE);
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terasic_mtl_blend_textfg_set(sc, TERASIC_MTL_ALPHA_TRANSPARENT);
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terasic_mtl_blend_textbg_set(sc, TERASIC_MTL_ALPHA_TRANSPARENT);
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#endif
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#if defined(DEV_SC)
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error = terasic_mtl_syscons_attach(sc);
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if (error)
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goto error;
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terasic_mtl_blend_pixel_set(sc, TERASIC_MTL_ALPHA_TRANSPARENT);
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terasic_mtl_blend_textfg_set(sc, TERASIC_MTL_ALPHA_OPAQUE);
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terasic_mtl_blend_textbg_set(sc, TERASIC_MTL_ALPHA_OPAQUE);
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#endif
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terasic_mtl_blend_default_set(sc, TERASIC_MTL_COLOR_BLACK);
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return (0);
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error:
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terasic_mtl_text_detach(sc);
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terasic_mtl_pixel_detach(sc);
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terasic_mtl_reg_detach(sc);
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return (error);
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}
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void
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terasic_mtl_detach(struct terasic_mtl_softc *sc)
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{
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/* XXXRW: syscons and vt can't detach, but try anyway, only to panic. */
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#if defined(DEV_SC)
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terasic_mtl_syscons_detach(sc);
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#endif
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#if defined(DEV_VT)
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terasic_mtl_fbd_detach(sc);
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#endif
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/* All other aspects of the driver can detach just fine. */
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terasic_mtl_text_detach(sc);
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terasic_mtl_pixel_detach(sc);
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terasic_mtl_reg_detach(sc);
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}
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