1537078d8f
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.
296 lines
7.6 KiB
C
296 lines
7.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2012 Robert N. M. Watson
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by SRI International and the University of
|
|
* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
|
|
* ("CTSRD"), as part of the DARPA CRASH research programme.
|
|
*
|
|
* 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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/consio.h> /* struct vt_mode */
|
|
#include <sys/endian.h>
|
|
#include <sys/fbio.h> /* video_adapter_t */
|
|
#include <sys/lock.h>
|
|
#include <sys/mutex.h>
|
|
#include <sys/rman.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/uio.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/vm.h>
|
|
|
|
#include <dev/terasic/mtl/terasic_mtl.h>
|
|
|
|
static d_mmap_t terasic_mtl_reg_mmap;
|
|
static d_read_t terasic_mtl_reg_read;
|
|
static d_write_t terasic_mtl_reg_write;
|
|
|
|
static struct cdevsw terasic_mtl_reg_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_mmap = terasic_mtl_reg_mmap,
|
|
.d_read = terasic_mtl_reg_read,
|
|
.d_write = terasic_mtl_reg_write,
|
|
.d_name = "terasic_mtl_reg",
|
|
};
|
|
|
|
/*
|
|
* All I/O to/from the MTL register device must be 32-bit, and aligned to
|
|
* 32-bit.
|
|
*/
|
|
static int
|
|
terasic_mtl_reg_read(struct cdev *dev, struct uio *uio, int flag)
|
|
{
|
|
struct terasic_mtl_softc *sc;
|
|
u_long offset, size;
|
|
uint32_t v;
|
|
int error;
|
|
|
|
if (uio->uio_offset < 0 || uio->uio_offset % 4 != 0 ||
|
|
uio->uio_resid % 4 != 0)
|
|
return (ENODEV);
|
|
sc = dev->si_drv1;
|
|
size = rman_get_size(sc->mtl_reg_res);
|
|
error = 0;
|
|
if ((uio->uio_offset + uio->uio_resid < 0) ||
|
|
(uio->uio_offset + uio->uio_resid > size))
|
|
return (ENODEV);
|
|
while (uio->uio_resid > 0) {
|
|
offset = uio->uio_offset;
|
|
if (offset + sizeof(v) > size)
|
|
return (ENODEV);
|
|
v = bus_read_4(sc->mtl_reg_res, offset);
|
|
error = uiomove(&v, sizeof(v), uio);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
terasic_mtl_reg_write(struct cdev *dev, struct uio *uio, int flag)
|
|
{
|
|
struct terasic_mtl_softc *sc;
|
|
u_long offset, size;
|
|
uint32_t v;
|
|
int error;
|
|
|
|
if (uio->uio_offset < 0 || uio->uio_offset % 4 != 0 ||
|
|
uio->uio_resid % 4 != 0)
|
|
return (ENODEV);
|
|
sc = dev->si_drv1;
|
|
size = rman_get_size(sc->mtl_reg_res);
|
|
error = 0;
|
|
while (uio->uio_resid > 0) {
|
|
offset = uio->uio_offset;
|
|
if (offset + sizeof(v) > size)
|
|
return (ENODEV);
|
|
error = uiomove(&v, sizeof(v), uio);
|
|
if (error)
|
|
return (error);
|
|
bus_write_4(sc->mtl_reg_res, offset, v);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
terasic_mtl_reg_mmap(struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr,
|
|
int nprot, vm_memattr_t *memattr)
|
|
{
|
|
struct terasic_mtl_softc *sc;
|
|
int error;
|
|
|
|
sc = dev->si_drv1;
|
|
error = 0;
|
|
if (trunc_page(offset) == offset &&
|
|
rman_get_size(sc->mtl_reg_res) >= offset + PAGE_SIZE) {
|
|
*paddr = rman_get_start(sc->mtl_reg_res) + offset;
|
|
*memattr = VM_MEMATTR_UNCACHEABLE;
|
|
} else
|
|
error = ENODEV;
|
|
return (error);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_blend_get(struct terasic_mtl_softc *sc, uint32_t *blendp)
|
|
{
|
|
|
|
*blendp = le32toh(bus_read_4(sc->mtl_reg_res, TERASIC_MTL_OFF_BLEND));
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_blend_set(struct terasic_mtl_softc *sc, uint32_t blend)
|
|
{
|
|
|
|
bus_write_4(sc->mtl_reg_res, TERASIC_MTL_OFF_BLEND, htole32(blend));
|
|
}
|
|
|
|
void
|
|
terasic_mtl_blend_default_set(struct terasic_mtl_softc *sc, uint8_t colour)
|
|
{
|
|
uint32_t v;
|
|
|
|
TERASIC_MTL_LOCK(sc);
|
|
terasic_mtl_reg_blend_get(sc, &v);
|
|
v &= ~TERASIC_MTL_BLEND_DEFAULT_MASK;
|
|
v |= colour << TERASIC_MTL_BLEND_DEFAULT_SHIFT;
|
|
terasic_mtl_reg_blend_set(sc, v);
|
|
TERASIC_MTL_UNLOCK(sc);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_blend_pixel_set(struct terasic_mtl_softc *sc, uint8_t alpha)
|
|
{
|
|
uint32_t v;
|
|
|
|
TERASIC_MTL_LOCK(sc);
|
|
terasic_mtl_reg_blend_get(sc, &v);
|
|
v &= ~TERASIC_MTL_BLEND_PIXEL_MASK;
|
|
v |= alpha << TERASIC_MTL_BLEND_PIXEL_SHIFT;
|
|
terasic_mtl_reg_blend_set(sc, v);
|
|
TERASIC_MTL_UNLOCK(sc);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_blend_textfg_set(struct terasic_mtl_softc *sc, uint8_t alpha)
|
|
{
|
|
uint32_t v;
|
|
|
|
TERASIC_MTL_LOCK(sc);
|
|
terasic_mtl_reg_blend_get(sc, &v);
|
|
v &= ~TERASIC_MTL_BLEND_TEXTFG_MASK;
|
|
v |= alpha << TERASIC_MTL_BLEND_TEXTFG_SHIFT;
|
|
terasic_mtl_reg_blend_set(sc, v);
|
|
TERASIC_MTL_UNLOCK(sc);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_blend_textbg_set(struct terasic_mtl_softc *sc, uint8_t alpha)
|
|
{
|
|
uint32_t v;
|
|
|
|
TERASIC_MTL_LOCK(sc);
|
|
terasic_mtl_reg_blend_get(sc, &v);
|
|
v &= ~TERASIC_MTL_BLEND_TEXTBG_MASK;
|
|
v |= alpha << TERASIC_MTL_BLEND_TEXTBG_SHIFT;
|
|
terasic_mtl_reg_blend_set(sc, v);
|
|
TERASIC_MTL_UNLOCK(sc);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_pixel_endian_set(struct terasic_mtl_softc *sc, int endian_swap)
|
|
{
|
|
uint32_t v;
|
|
|
|
TERASIC_MTL_LOCK(sc);
|
|
terasic_mtl_reg_blend_get(sc, &v);
|
|
if (endian_swap)
|
|
v |= TERASIC_MTL_BLEND_PIXEL_ENDIAN_SWAP;
|
|
else
|
|
v &= ~TERASIC_MTL_BLEND_PIXEL_ENDIAN_SWAP;
|
|
terasic_mtl_reg_blend_set(sc, v);
|
|
TERASIC_MTL_UNLOCK(sc);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_textcursor_get(struct terasic_mtl_softc *sc, uint8_t *colp,
|
|
uint8_t *rowp)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = bus_read_4(sc->mtl_reg_res, TERASIC_MTL_OFF_TEXTCURSOR);
|
|
v = le32toh(v);
|
|
*colp = (v & TERASIC_MTL_TEXTCURSOR_COL_MASK) >>
|
|
TERASIC_MTL_TEXTCURSOR_COL_SHIFT;
|
|
*rowp = (v & TERASIC_MTL_TEXTCURSOR_ROW_MASK);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_textcursor_set(struct terasic_mtl_softc *sc, uint8_t col,
|
|
uint8_t row)
|
|
{
|
|
uint32_t v;
|
|
|
|
v = (col << TERASIC_MTL_TEXTCURSOR_COL_SHIFT) | row;
|
|
v = htole32(v);
|
|
bus_write_4(sc->mtl_reg_res, TERASIC_MTL_OFF_TEXTCURSOR, v);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_blank(struct terasic_mtl_softc *sc)
|
|
{
|
|
|
|
device_printf(sc->mtl_dev, "%s: not yet\n", __func__);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_textframebufaddr_get(struct terasic_mtl_softc *sc,
|
|
uint32_t *addrp)
|
|
{
|
|
uint32_t addr;
|
|
|
|
addr = bus_read_4(sc->mtl_reg_res, TERASIC_MTL_OFF_TEXTFRAMEBUFADDR);
|
|
*addrp = le32toh(addr);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_textframebufaddr_set(struct terasic_mtl_softc *sc,
|
|
uint32_t addr)
|
|
{
|
|
|
|
addr = htole32(addr);
|
|
bus_write_4(sc->mtl_reg_res, TERASIC_MTL_OFF_TEXTFRAMEBUFADDR, addr);
|
|
}
|
|
|
|
int
|
|
terasic_mtl_reg_attach(struct terasic_mtl_softc *sc)
|
|
{
|
|
|
|
sc->mtl_reg_cdev = make_dev(&terasic_mtl_reg_cdevsw, sc->mtl_unit,
|
|
UID_ROOT, GID_WHEEL, 0400, "mtl_reg%d", sc->mtl_unit);
|
|
if (sc->mtl_reg_cdev == NULL) {
|
|
device_printf(sc->mtl_dev, "%s: make_dev failed\n", __func__);
|
|
return (ENXIO);
|
|
}
|
|
/* XXXRW: Slight race between make_dev(9) and here. */
|
|
sc->mtl_reg_cdev->si_drv1 = sc;
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
terasic_mtl_reg_detach(struct terasic_mtl_softc *sc)
|
|
{
|
|
|
|
if (sc->mtl_reg_cdev != NULL)
|
|
destroy_dev(sc->mtl_reg_cdev);
|
|
}
|