718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
135 lines
4.3 KiB
C
135 lines
4.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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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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