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mpv/vidix/drivers/pm3_vid.c

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/**
Driver for 3DLabs GLINT R3 and Permedia3 chips.
Copyright (C) 2002 Måns Rullgård
This program 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.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
**/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <unistd.h>
#include "../vidix.h"
#include "../fourcc.h"
#include "../../libdha/libdha.h"
#include "../../libdha/pci_ids.h"
#include "../../libdha/pci_names.h"
#include "../../config.h"
#include "pm3_regs.h"
#if 0
#define TRACE_ENTER() fprintf(stderr, "%s: enter\n", __FUNCTION__)
#define TRACE_EXIT() fprintf(stderr, "%s: exit\n", __FUNCTION__)
#else
#define TRACE_ENTER()
#define TRACE_EXIT()
#endif
pciinfo_t pci_info;
void *pm3_reg_base;
void *pm3_mem;
static vidix_capability_t pm3_cap =
{
"3DLabs GLINT R3/Permedia3 driver",
"Måns Rullgård <mru@users.sf.net>",
TYPE_OUTPUT,
{ 0, 0, 0, 0 },
2048,
2048,
4,
4,
-1,
FLAG_UPSCALER|FLAG_DOWNSCALER,
VENDOR_3DLABS,
-1,
{ 0, 0, 0, 0 }
};
unsigned int vixGetVersion(void)
{
return(VIDIX_VERSION);
}
static unsigned short pm3_card_ids[] =
{
DEVICE_3DLABS_GLINT_R3
};
static int find_chip(unsigned chip_id)
{
unsigned i;
for(i = 0;i < sizeof(pm3_card_ids)/sizeof(unsigned short);i++)
{
if(chip_id == pm3_card_ids[i]) return i;
}
return -1;
}
int vixProbe(int verbose, int force)
{
pciinfo_t lst[MAX_PCI_DEVICES];
unsigned i,num_pci;
int err;
err = pci_scan(lst,&num_pci);
if(err)
{
printf("[pm3] Error occured during pci scan: %s\n",strerror(err));
return err;
}
else
{
err = ENXIO;
for(i=0; i < num_pci; i++)
{
if(lst[i].vendor == VENDOR_3DLABS)
{
int idx;
const char *dname;
idx = find_chip(lst[i].device);
if(idx == -1)
continue;
dname = pci_device_name(VENDOR_3DLABS, lst[i].device);
dname = dname ? dname : "Unknown chip";
printf("[pm3] Found chip: %s\n", dname);
if ((lst[i].command & PCI_COMMAND_IO) == 0)
{
printf("[pm3] Device is disabled, ignoring\n");
continue;
}
pm3_cap.device_id = lst[i].device;
err = 0;
memcpy(&pci_info, &lst[i], sizeof(pciinfo_t));
break;
}
}
}
if(err && verbose) printf("[pm3] Can't find chip\n");
return err;
}
#define PRINT_REG(reg) \
{ \
long _foo = READ_REG(reg); \
printf("[pm3] " #reg " (%x) = %#lx (%li)\n", reg, _foo, _foo); \
}
int vixInit(void)
{
pm3_reg_base = map_phys_mem(pci_info.base0, 0x20000);
pm3_mem = map_phys_mem(pci_info.base2, 0x2000000);
return 0;
}
void vixDestroy(void)
{
unmap_phys_mem(pm3_reg_base, 0x20000);
unmap_phys_mem(pm3_mem, 0x2000000);
}
int vixGetCapability(vidix_capability_t *to)
{
memcpy(to, &pm3_cap, sizeof(vidix_capability_t));
return 0;
}
static int is_supported_fourcc(uint32_t fourcc)
{
switch(fourcc){
case IMGFMT_YUY2:
case IMGFMT_UYVY:
return 1;
default:
return 0;
}
}
int vixQueryFourcc(vidix_fourcc_t *to)
{
if(is_supported_fourcc(to->fourcc))
{
to->depth = VID_DEPTH_1BPP | VID_DEPTH_2BPP |
VID_DEPTH_4BPP | VID_DEPTH_8BPP |
VID_DEPTH_12BPP| VID_DEPTH_15BPP|
VID_DEPTH_16BPP| VID_DEPTH_24BPP|
VID_DEPTH_32BPP;
to->flags = VID_CAP_EXPAND | VID_CAP_SHRINK | VID_CAP_COLORKEY;
return 0;
}
else to->depth = to->flags = 0;
return ENOSYS;
}
#define FORMAT_RGB8888 PM3VideoOverlayMode_COLORFORMAT_RGB8888
#define FORMAT_RGB4444 PM3VideoOverlayMode_COLORFORMAT_RGB4444
#define FORMAT_RGB5551 PM3VideoOverlayMode_COLORFORMAT_RGB5551
#define FORMAT_RGB565 PM3VideoOverlayMode_COLORFORMAT_RGB565
#define FORMAT_RGB332 PM3VideoOverlayMode_COLORFORMAT_RGB332
#define FORMAT_BGR8888 PM3VideoOverlayMode_COLORFORMAT_BGR8888
#define FORMAT_BGR4444 PM3VideoOverlayMode_COLORFORMAT_BGR4444
#define FORMAT_BGR5551 PM3VideoOverlayMode_COLORFORMAT_BGR5551
#define FORMAT_BGR565 PM3VideoOverlayMode_COLORFORMAT_BGR565
#define FORMAT_BGR332 PM3VideoOverlayMode_COLORFORMAT_BGR332
#define FORMAT_CI8 PM3VideoOverlayMode_COLORFORMAT_CI8
#define FORMAT_VUY444 PM3VideoOverlayMode_COLORFORMAT_VUY444
#define FORMAT_YUV444 PM3VideoOverlayMode_COLORFORMAT_YUV444
#define FORMAT_VUY422 PM3VideoOverlayMode_COLORFORMAT_VUY422
#define FORMAT_YUV422 PM3VideoOverlayMode_COLORFORMAT_YUV422
/* Notice, have to check that we dont overflow the deltas here ... */
static void
compute_scale_factor(
short* src_w, short* dst_w,
unsigned int* shrink_delta, unsigned int* zoom_delta)
{
/* NOTE: If we don't return reasonable values here then the video
* unit can potential shut off and won't display an image until re-enabled.
* Seems as though the zoom_delta is o.k, and I've not had the problem.
* The 'shrink_delta' is prone to this the most - FIXME ! */
if (*src_w >= *dst_w) {
*src_w &= ~0x3;
*dst_w &= ~0x3;
*shrink_delta = (((*src_w << 16) / *dst_w) + 0x0f) & 0x0ffffff0;
*zoom_delta = 1<<16;
if ( ((*shrink_delta * *dst_w) >> 16) & 0x03 )
*shrink_delta += 0x10;
} else {
*src_w &= ~0x3;
*dst_w &= ~0x3;
*zoom_delta = (((*src_w << 16) / *dst_w) + 0x0f) & 0x0001fff0;
*shrink_delta = 1<<16;
if ( ((*zoom_delta * *dst_w) >> 16) & 0x03 )
*zoom_delta += 0x10;
}
}
static int frames[VID_PLAY_MAXFRAMES];
static long overlay_mode, overlay_control;
int vixConfigPlayback(vidix_playback_t *info)
{
int shrink, zoom;
short src_w, drw_w;
short src_h, drw_h;
long base0;
int pitch;
int format;
unsigned int i;
TRACE_ENTER();
if(!is_supported_fourcc(info->fourcc))
return -1;
switch(info->fourcc){
case IMGFMT_YUY2:
format = FORMAT_YUV422;
break;
case IMGFMT_UYVY:
format = FORMAT_VUY422;
break;
default:
return -1;
}
src_w = info->src.w;
src_h = info->src.h;
drw_w = info->dest.w;
drw_h = info->dest.h;
pitch = src_w;
/* Assume we have 16 MB to play with */
info->num_frames = 0x1000000 / (pitch * src_h * 2);
if(info->num_frames > VID_PLAY_MAXFRAMES)
info->num_frames = VID_PLAY_MAXFRAMES;
/* Start at 16 MB. Let's hope it's not in use. */
base0 = 0x1000000;
info->dga_addr = pm3_mem + base0;
info->dest.pitch.y = 2;
info->dest.pitch.u = 0;
info->dest.pitch.v = 0;
info->offset.y = 0;
info->offset.v = 0;
info->offset.u = 0;
info->frame_size = pitch * src_h * 2;
for(i = 0; i < info->num_frames; i++){
info->offsets[i] = info->frame_size * i;
frames[i] = (base0 + info->offsets[i]) >> 1;
}
compute_scale_factor(&src_w, &drw_w, &shrink, &zoom);
WRITE_REG(PM3VideoOverlayBase0, base0 >> 1);
WRITE_REG(PM3VideoOverlayStride, PM3VideoOverlayStride_STRIDE(pitch));
WRITE_REG(PM3VideoOverlayWidth, PM3VideoOverlayWidth_WIDTH(src_w));
WRITE_REG(PM3VideoOverlayHeight, PM3VideoOverlayHeight_HEIGHT(src_h));
WRITE_REG(PM3VideoOverlayOrigin, 0);
/* Scale the source to the destinationsize */
if (src_h == drw_h) {
WRITE_REG(PM3VideoOverlayYDelta, PM3VideoOverlayYDelta_NONE);
} else {
WRITE_REG(PM3VideoOverlayYDelta,
PM3VideoOverlayYDelta_DELTA(src_h, drw_h));
}
if (src_w == drw_w) {
WRITE_REG(PM3VideoOverlayShrinkXDelta, 1<<16);
WRITE_REG(PM3VideoOverlayZoomXDelta, 1<<16);
} else {
WRITE_REG(PM3VideoOverlayShrinkXDelta, shrink);
WRITE_REG(PM3VideoOverlayZoomXDelta, zoom);
}
WRITE_REG(PM3VideoOverlayIndex, 0);
/* Now set the ramdac video overlay region and mode */
RAMDAC_SET_REG(PM3RD_VideoOverlayXStartLow, (info->dest.x & 0xff));
RAMDAC_SET_REG(PM3RD_VideoOverlayXStartHigh, (info->dest.x & 0xf00)>>8);
RAMDAC_SET_REG(PM3RD_VideoOverlayXEndLow, (info->dest.x+drw_w) & 0xff);
RAMDAC_SET_REG(PM3RD_VideoOverlayXEndHigh,
((info->dest.x+drw_w) & 0xf00)>>8);
RAMDAC_SET_REG(PM3RD_VideoOverlayYStartLow, (info->dest.y & 0xff));
RAMDAC_SET_REG(PM3RD_VideoOverlayYStartHigh, (info->dest.y & 0xf00)>>8);
RAMDAC_SET_REG(PM3RD_VideoOverlayYEndLow, (info->dest.y+drw_h) & 0xff);
RAMDAC_SET_REG(PM3RD_VideoOverlayYEndHigh,
((info->dest.y+drw_h) & 0xf00)>>8);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyR, 0xff);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyG, 0x00);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyB, 0xff);
overlay_mode =
1 << 5 |
format |
PM3VideoOverlayMode_FILTER_FULL |
PM3VideoOverlayMode_BUFFERSYNC_MANUAL |
PM3VideoOverlayMode_FLIP_VIDEO;
overlay_control =
PM3RD_VideoOverlayControl_KEY_COLOR |
PM3RD_VideoOverlayControl_MODE_MAINKEY |
PM3RD_VideoOverlayControl_DIRECTCOLOR_ENABLED;
TRACE_EXIT();
return 0;
}
int vixPlaybackOn(void)
{
TRACE_ENTER();
WRITE_REG(PM3VideoOverlayMode,
overlay_mode | PM3VideoOverlayMode_ENABLE);
RAMDAC_SET_REG(PM3RD_VideoOverlayControl,
overlay_control | PM3RD_VideoOverlayControl_ENABLE);
WRITE_REG(PM3VideoOverlayUpdate,
PM3VideoOverlayUpdate_ENABLE);
TRACE_EXIT();
return 0;
}
int vixPlaybackOff(void)
{
RAMDAC_SET_REG(PM3RD_VideoOverlayControl,
PM3RD_VideoOverlayControl_DISABLE);
WRITE_REG(PM3VideoOverlayMode,
PM3VideoOverlayMode_DISABLE);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyR, 0x01);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyG, 0x01);
RAMDAC_SET_REG(PM3RD_VideoOverlayKeyB, 0xfe);
return 0;
}
int vixPlaybackFrameSelect(unsigned int frame)
{
WRITE_REG(PM3VideoOverlayBase0, frames[frame]);
return 0;
}
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