mpv/vidix/ivtv_vid.c

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/*
* VIDIX driver for Hauppauge PVR 350
*
* Copyright 2007 Lutz Koschorreck
* Based on genfb_vid.c and ivtv_xv.c
*
* This file is part of MPlayer.
*
* MPlayer is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <math.h>
#include <inttypes.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/version.h>
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
#include <linux/videodev2.h>
#endif
#include <linux/ivtv.h>
#include <linux/fb.h>
#include "vidix.h"
#include "fourcc.h"
#include "dha.h"
#include "pci_ids.h"
#include "pci_names.h"
#define VIDIX_STATIC ivtv_
#define IVTV_MSG "[ivtv-vid] "
#define MAXLINE 128
#define IVTVMAXWIDTH 720
#define IVTVMAXHEIGHT 576
static int fbdev = -1;
static int yuvdev = -1;
static void *memBase = NULL;
static int frameSize = 0;
static int probed = 0;
static int ivtv_verbose;
static vidix_rect_t destVideo;
static vidix_rect_t srcVideo;
static unsigned char *outbuf = NULL;
double fb_width;
double fb_height;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
static struct ivtvfb_ioctl_state_info fb_state_old;
static struct ivtvfb_ioctl_state_info fb_state_hide;
#else
struct v4l2_format format_old, format_hide;
#endif
int alpha_disable = 0;
/* VIDIX exports */
static vidix_capability_t ivtv_cap =
{
"Hauppauge PVR 350 YUV Video",
"Lutz Koschorreck",
TYPE_OUTPUT,
{ 0, 0, 0, 0 },
IVTVMAXWIDTH,
IVTVMAXHEIGHT,
4,
4,
-1,
FLAG_UPSCALER|FLAG_DOWNSCALER,
-1,
-1,
{ 0, 0, 0, 0 }
};
static void de_macro_y(unsigned char *src, unsigned char *dst,
unsigned int w, unsigned int h, int src_x, int src_y, int height, int width)
{
unsigned int x, y, i;
unsigned char *dst_2;
unsigned int h_tail, w_tail;
unsigned int h_size, w_size;
// Always round the origin, but compensate by increasing the size
if (src_x & 15) {
w += src_x & 15;
src_x &= ~15;
}
if (src_y & 15) {
h += src_y & 15;
src_y &= ~15;
}
// The right / bottom edge might not be a multiple of 16
h_tail = h & 15;
w_tail = w & 15;
// One block is 16 pixels high
h_size = 16;
// descramble Y plane
for (y = 0; y < h; y += 16) {
// Clip if we've reached the bottom & the size isn't a multiple of 16
if (y + 16 > h) h_size = h_tail;
for (x = 0; x < w; x += 16) {
if (x + 16 > w)
w_size = w_tail;
else
w_size = 16;
dst_2 = dst + (720 * y) + (720 * src_y) + (256 * (src_x>>4)) + (x * 16);
for (i = 0; i < h_size; i++) {
memcpy(dst_2, src + src_x + x + (y + i) * width + (src_y * width), w_size);
dst_2 += 16;
}
}
}
}
static void de_macro_uv(unsigned char *srcu, unsigned char *srcv,
unsigned char *dst, unsigned int w, unsigned int h, int src_x, int src_y,
int height, int width)
{
unsigned int x, y, i, f;
unsigned char *dst_2;
unsigned int h_tail, w_tail;
unsigned int h_size;
// The uv plane is half the size of the y plane, so 'correct' all dimensions.
w /= 2;
h /= 2;
src_x /= 2;
src_y /= 2;
height /= 2;
width /= 2;
// Always round the origin, but compensate by increasing the size
if (src_x & 7) {
w += src_x & 7;
src_x &= ~7;
}
if (src_y & 15) {
h += src_y & 15;
src_y &= ~15;
}
// The right / bottom edge may not be a multiple of 16
h_tail = h & 15;
w_tail = w & 7;
h_size = 16;
// descramble U/V plane
for (y = 0; y < h; y += 16) {
if ( y + 16 > h ) h_size = h_tail;
for (x = 0; x < w; x += 8) {
dst_2 = dst + (720 * y) + (720 * src_y) + (256 * (src_x>>3)) + (x * 32);
if (x + 8 <= w) {
for (i = 0; i < h_size; i++) {
int idx = src_x + x + ((y + i) * width) + (src_y * width);
dst_2[0] = srcu[idx + 0];
dst_2[1] = srcv[idx + 0];
dst_2[2] = srcu[idx + 1];
dst_2[3] = srcv[idx + 1];
dst_2[4] = srcu[idx + 2];
dst_2[5] = srcv[idx + 2];
dst_2[6] = srcu[idx + 3];
dst_2[7] = srcv[idx + 3];
dst_2[8] = srcu[idx + 4];
dst_2[9] = srcv[idx + 4];
dst_2[10] = srcu[idx + 5];
dst_2[11] = srcv[idx + 5];
dst_2[12] = srcu[idx + 6];
dst_2[13] = srcv[idx + 6];
dst_2[14] = srcu[idx + 7];
dst_2[15] = srcv[idx + 7];
dst_2 += 16;
}
}
else {
for (i = 0; i < h_size; i ++) {
int idx = src_x + x + ((y + i) * width) + (src_y * width);
for (f = 0; f < w_tail; f++) {
dst_2[0] = srcu[idx + f];
dst_2[1] = srcv[idx + f];
dst_2 += 2;
}
/*
// Used for testing edge cutoff. Sets colour to Green
for (f = w_tail;f < 8;f ++) {
dst_2[0] = 0;
dst_2[1] = 0;
dst_2 += 2;
}
*/
dst_2 += 16 - (w_tail << 1);
}
}
}
}
}
int ivtv_probe(int verbose, int force)
{
unsigned char fb_number = 0;
char *device_name = NULL;
char *alpha = NULL;
struct fb_var_screeninfo vinfo;
char fb_dev_name[] = "/dev/fb0\0";
pciinfo_t lst[MAX_PCI_DEVICES];
int err = 0;
unsigned int i, num_pci = 0;
if(verbose)
printf(IVTV_MSG"probe\n");
ivtv_verbose = verbose;
err = pci_scan(lst, &num_pci);
if(err) {
printf(IVTV_MSG"Error occured during pci scan: %s\n", strerror(err));
return err;
}
if(ivtv_verbose)
printf(IVTV_MSG"Found %d pci devices\n", num_pci);
for(i = 0; i < num_pci; i++) {
if(2 == ivtv_verbose)
printf(IVTV_MSG"Found chip [%04X:%04X] '%s' '%s'\n"
,lst[i].vendor
,lst[i].device
,pci_vendor_name(lst[i].vendor)
,pci_device_name(lst[i].vendor,lst[i].device));
if(VENDOR_INTERNEXT == lst[i].vendor) {
switch(lst[i].device)
{
case DEVICE_INTERNEXT_ITVC15_MPEG_2_ENCODER:
if(ivtv_verbose)
printf(IVTV_MSG"Found PVR 350\n");
goto card_found;
}
}
}
if(ivtv_verbose)
printf(IVTV_MSG"Can't find chip\n");
return ENXIO;
card_found:
device_name = getenv("FRAMEBUFFER");
if(NULL == device_name) {
device_name = fb_dev_name;
}
fb_number = atoi(device_name+strlen("/dev/fb"));
fbdev = open(device_name, O_RDWR);
if(-1 != fbdev) {
if(ioctl(fbdev, FBIOGET_VSCREENINFO, &vinfo) < 0) {
printf(IVTV_MSG"Unable to read screen info\n");
close(fbdev);
return ENXIO;
} else {
fb_width = vinfo.xres;
fb_height = vinfo.yres;
if(2 == ivtv_verbose) {
printf(IVTV_MSG"framebuffer width : %3.0f\n",fb_width);
printf(IVTV_MSG"framebuffer height: %3.0f\n",fb_height);
}
}
if(NULL != (alpha = getenv("VIDIXIVTVALPHA"))) {
if(0 == strcmp(alpha, "disable")) {
alpha_disable = 1;
}
}
} else {
printf(IVTV_MSG"Failed to open /dev/fb%u\n", fb_number);
return ENXIO;
}
/* Try to find YUV device */
unsigned char yuv_device_number = 48, yuv_device = 48 + fb_number;
char yuv_device_name[] = "/dev/videoXXX\0";
do {
sprintf(yuv_device_name, "/dev/video%u", yuv_device);
yuvdev = open(yuv_device_name, O_RDWR);
if(-1 != yuvdev) {
if(ivtv_verbose)
printf(IVTV_MSG"YUV device found /dev/video%u\n", yuv_device);
goto yuv_found;
} else {
if(ivtv_verbose)
printf(IVTV_MSG"YUV device not found: /dev/video%u\n", yuv_device);
}
} while(yuv_device-- > yuv_device_number);
return ENXIO;
yuv_found:
if(0 == alpha_disable) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
if(ioctl(fbdev, IVTVFB_IOCTL_GET_STATE, &fb_state_old) < 0) {
printf(IVTV_MSG"Unable to read fb state\n");
close(yuvdev);
close(fbdev);
return ENXIO;
} else {
if(ivtv_verbose) {
printf(IVTV_MSG"old alpha : %ld\n",fb_state_old.alpha);
printf(IVTV_MSG"old status: 0x%lx\n",fb_state_old.status);
}
fb_state_hide.alpha = 0;
fb_state_hide.status = fb_state_old.status | IVTVFB_STATUS_GLOBAL_ALPHA;
}
#else
memset(&format_old, 0, sizeof(format_old));
format_old.type = format_hide.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY;
if(ioctl(yuvdev, VIDIOC_G_FMT , &format_old) < 0) {
printf(IVTV_MSG"Unable to read fb state\n");
close(yuvdev);
close(fbdev);
return ENXIO;
} else {
if(ivtv_verbose) {
printf(IVTV_MSG"old alpha : %d\n",format_old.fmt.win.global_alpha);
}
memcpy(&format_hide, &format_old, sizeof(format_old));
format_hide.fmt.win.global_alpha = 0;
}
#endif
}
probed = 1;
return 0;
}
int ivtv_init(const char *args)
{
if(ivtv_verbose)
printf(IVTV_MSG"init\n");
if (!probed) {
if(ivtv_verbose)
printf(IVTV_MSG"Driver was not probed but is being initialized\n");
return EINTR;
}
outbuf = malloc((IVTVMAXHEIGHT * IVTVMAXWIDTH) + (IVTVMAXHEIGHT * IVTVMAXWIDTH / 2));
if(NULL == outbuf) {
if(ivtv_verbose)
printf(IVTV_MSG"Not enough memory availabe!\n");
return EINTR;
}
return 0;
}
void ivtv_destroy(void)
{
if(ivtv_verbose)
printf(IVTV_MSG"destroy\n");
if(-1 != yuvdev)
close(yuvdev);
if(-1 != fbdev)
close(fbdev);
if(NULL != outbuf)
free(outbuf);
if(NULL != memBase)
free(memBase);
}
int ivtv_get_caps(vidix_capability_t *to)
{
if(ivtv_verbose)
printf(IVTV_MSG"GetCap\n");
memcpy(to, &ivtv_cap, sizeof(vidix_capability_t));
return 0;
}
int ivtv_query_fourcc(vidix_fourcc_t *to)
{
if(ivtv_verbose)
printf(IVTV_MSG"query fourcc (%x)\n", to->fourcc);
int supports = 0;
switch(to->fourcc)
{
case IMGFMT_YV12:
supports = 1;
break;
default:
supports = 0;
}
if(!supports) {
to->depth = to->flags = 0;
return ENOTSUP;
}
to->depth = VID_DEPTH_12BPP |
VID_DEPTH_15BPP | VID_DEPTH_16BPP |
VID_DEPTH_24BPP | VID_DEPTH_32BPP;
to->flags = 0;
return 0;
}
int ivtv_config_playback(vidix_playback_t *info)
{
if(ivtv_verbose)
printf(IVTV_MSG"config playback\n");
if(2 == ivtv_verbose){
printf(IVTV_MSG"src : x:%d y:%d w:%d h:%d\n",
info->src.x, info->src.y, info->src.w, info->src.h);
printf(IVTV_MSG"dest: x:%d y:%d w:%d h:%d\n",
info->dest.x, info->dest.y, info->dest.w, info->dest.h);
}
memcpy(&destVideo, &info->dest, sizeof(vidix_rect_t));
memcpy(&srcVideo, &info->src, sizeof(vidix_rect_t));
info->num_frames = 2;
info->frame_size = frameSize = info->src.w*info->src.h+(info->src.w*info->src.h)/2;
info->dest.pitch.y = 1;
info->dest.pitch.u = info->dest.pitch.v = 2;
info->offsets[0] = 0;
info->offsets[1] = info->frame_size;
info->offset.y = 0;
info->offset.u = info->src.w * info->src.h;
info->offset.v = info->offset.u + ((info->src.w * info->src.h)/4);
info->dga_addr = memBase = malloc(info->num_frames*info->frame_size);
if(ivtv_verbose)
printf(IVTV_MSG"frame_size: %d, dga_addr: %p\n",
info->frame_size, info->dga_addr);
return 0;
}
int ivtv_playback_on(void)
{
if(ivtv_verbose)
printf(IVTV_MSG"playback on\n");
if(0 == alpha_disable) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
if (-1 != fbdev) {
if (ioctl(fbdev, IVTVFB_IOCTL_SET_STATE, &fb_state_hide) < 0)
printf (IVTV_MSG"Failed to set fb state\n");
}
#else
if (-1 != yuvdev) {
if (ioctl(yuvdev, VIDIOC_S_FMT, &format_hide) < 0)
printf (IVTV_MSG"Failed to set fb state\n");
}
#endif
}
return 0;
}
int ivtv_playback_off(void)
{
if(ivtv_verbose)
printf(IVTV_MSG"playback off\n");
if(0 == alpha_disable) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
if (-1 != fbdev) {
if (ioctl(fbdev, IVTVFB_IOCTL_SET_STATE, &fb_state_old) < 0)
printf (IVTV_MSG"Failed to restore fb state\n");
}
#else
if (-1 != yuvdev) {
if (ioctl(yuvdev, VIDIOC_S_FMT, &format_old) < 0)
printf (IVTV_MSG"Failed to restore fb state\n");
}
#endif
}
return 0;
}
int ivtv_frame_sel(unsigned int frame)
{
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
struct ivtvyuv_ioctl_dma_host_to_ivtv_args args;
#else
struct ivtv_dma_frame args;
#endif
unsigned char *curMemBase = (unsigned char *)memBase + (frame * frameSize);
de_macro_y(curMemBase, outbuf, srcVideo.w, srcVideo.h, srcVideo.x, srcVideo.y, srcVideo.h, srcVideo.w);
de_macro_uv(curMemBase + (srcVideo.w * srcVideo.h) + srcVideo.w * srcVideo.h / 4,
curMemBase + (srcVideo.w * srcVideo.h), outbuf + (IVTVMAXHEIGHT * IVTVMAXWIDTH),
srcVideo.w, srcVideo.h, srcVideo.x, srcVideo.y, srcVideo.h, srcVideo.w);
args.y_source = outbuf;
args.uv_source = outbuf + (IVTVMAXHEIGHT * IVTVMAXWIDTH);
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
args.src_x = srcVideo.x;
args.src_y = srcVideo.y;
args.dst_x = destVideo.x;
args.dst_y = destVideo.y;
args.src_w = srcVideo.w;
args.dst_w = destVideo.w;
args.srcBuf_width = srcVideo.w;
args.src_h = srcVideo.h;
args.dst_h = destVideo.h;
args.srcBuf_height = srcVideo.h;
args.yuv_type = 0;
#else
args.src.left = srcVideo.x;
args.src.top = srcVideo.y;
args.dst.left = destVideo.x;
args.dst.top = destVideo.y;
args.src.width = srcVideo.w;
args.dst.width = destVideo.w;
args.src_width = srcVideo.w;
args.src.height = srcVideo.h;
args.dst.height = destVideo.h;
args.src_height = srcVideo.h;
args.type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
#endif
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22)
if(ioctl(yuvdev, IVTV_IOC_PREP_FRAME_YUV, &args) == -1) {
#else
if(ioctl(yuvdev, IVTV_IOC_DMA_FRAME, &args) == -1) {
#endif
printf("Ioctl IVTV_IOC_DMA_FRAME returned failed Error\n");
}
return 0;
}
VDXDriver ivtv_drv = {
"ivtv",
NULL,
.probe = ivtv_probe,
.get_caps = ivtv_get_caps,
.query_fourcc = ivtv_query_fourcc,
.init = ivtv_init,
.destroy = ivtv_destroy,
.config_playback = ivtv_config_playback,
.playback_on = ivtv_playback_on,
.playback_off = ivtv_playback_off,
.frame_sel = ivtv_frame_sel,
};