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Diffstat (limited to 'share/examples/meteor/test-n.c')
| -rw-r--r-- | share/examples/meteor/test-n.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/share/examples/meteor/test-n.c b/share/examples/meteor/test-n.c new file mode 100644 index 0000000..f899033 --- /dev/null +++ b/share/examples/meteor/test-n.c @@ -0,0 +1,162 @@ +/* A simple program to test the communication between the matrox meteor + * driver and an user application in the continous sync capture mode. + * + * First the driver clears the mask and decrements the counter like it + * would in a normal application. Then it purpose does not handle these + * responsibilities to simulate an application falling behind. I use + * the HUP signal to work as if the some of the buffers were removed + * (the second couter is used to cleared the correct bits. + * + * build kernel with at least: + * + * options "METEOR_ALLOC_PAGES=301" + * + */ +/* Copyright (c) 1995 Mark Tinguely and Jim Lowe + * All rights reserved. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Mark Tinguely and Jim Lowe + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/types.h> +#include <sys/mman.h> +#include <sys/fcntl.h> +/*#include <machine/ioctl_meteor.h> */ +#include "/sys/i386/include/ioctl_meteor.h" + +typedef unsigned char uint8; +typedef signed char int8; + +int i; +static uint8 *y; +extern int errno; +struct meteor_mem *common_mem; +int sig_cnt; +int sig_cnt2; + +void +hup_catcher() +{ + /* clear 4 oldest active bits */ + common_mem->active &= ~(1 << (sig_cnt2++ % 32)); + common_mem->active &= ~(1 << (sig_cnt2++ % 32)); + common_mem->active &= ~(1 << (sig_cnt2++ % 32)); + common_mem->active &= ~(1 << (sig_cnt2++ % 32)); + /* lowat is low enough that I will need 2 hups to start saving again */ + common_mem->num_active_bufs -= 4; + puts("hup caught"); +} + +void +usr2_catcher() +{ + int j; + struct meteor_capframe capframe; + + printf("active %3d = %08x ", sig_cnt,common_mem->active); + printf("# act %3d = %d\n", sig_cnt, common_mem->num_active_bufs); + + if (sig_cnt < 80) { + common_mem->active &= ~(1 << (sig_cnt % 32)); + common_mem->num_active_bufs--; + sig_cnt2++; + } + + printf("data %08x\n", *((u_long *) (y + (sig_cnt % 32) * + common_mem->frame_size))); + if (++sig_cnt >= 200) { + capframe.command=METEOR_CAP_STOP_FRAMES; + + if (ioctl(i, METEORCAPFRM, &capframe) < 0) { + printf("METEORCAPFRM failed %d\n", errno); + exit(1); + } + exit (0); + } +} + +main() +{ + struct meteor_geomet geo; + int height, width, depth, frames, size; + struct meteor_capframe capframe; + + if ((i = open("/dev/meteor", O_RDONLY)) < 0) { + printf("open failed\n"); + exit(1); + } + printf("test %d %d\n", errno, i); + + height = geo.rows = 120; + width= geo.columns = 160; + frames = geo.frames = 32; + depth = 2; /* 2 bytes per pixel */ + + printf("ioctl %d %d\n", errno, i); + + geo.oformat = METEOR_GEO_RGB16; + + if (ioctl(i, METEORSETGEO, &geo) < 0) { + printf("METEORSETGEO failed %d\n", errno); + exit(1); + } + + printf("mmap %d %d\n", errno, i); + size = ((width*height*depth*frames+4095)/4096)*4096; + y=(uint8 *) mmap((caddr_t)0, size + 4096, PROT_READ |PROT_WRITE,0, i, (off_t)0); + + if (y == (uint8 *) -1) return (0); + + common_mem = (struct meteor_mem *) (y + size); + + signal(1, hup_catcher); + signal(31, usr2_catcher); + + capframe.command=METEOR_CAP_N_FRAMES; + capframe.signal=31; + capframe.lowat=25; + capframe.hiwat=30; + + printf("ioctl %d %d\n", errno, i); + if (ioctl(i, METEORCAPFRM, &capframe) < 0) { + printf("METEORCAPFRM failed %d\n", errno); + exit(1); + } + + printf("signal = %d\n", common_mem->signal); + printf("frame size = %d\n", common_mem->frame_size); + printf("buffers = %d\n", common_mem->num_bufs); + printf("hiwater = %d\n", common_mem->hiwat); + printf("lowater = %d\n", common_mem->lowat); + printf("active = %08x\n", common_mem->active); + printf("# active = %d\n", common_mem->num_active_bufs); + + printf("sleep loop\n", errno, i); + while (1) { + sleep (60); + } +} |
