RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/vidix/drivers/unichrome_vid.c

946 lines
21 KiB
C
Raw Blame History

/*
Driver for VIA CLE266 Unichrome - Version 0.1.0
Copyright (C) 2004 by Timothy Lee
Based on Cyberblade/i driver by Alastair M. Robison.
Thanks to Gilles Frattini for bugfixes
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
Changes:
2004-03-10
Initial version
2004-10-09
Added Doxygen documentation (Benjamin Zores <ben@geexbox.org>)
To Do:
*/
#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 "unichrome_regs.h"
/**
* @brief Information on PCI device.
*/
pciinfo_t pci_info;
/**
* @brief Unichrome driver colorkey settings.
*/
static vidix_grkey_t uc_grkey;
static int frames[VID_PLAY_MAXFRAMES];
uint8_t *vio;
uint8_t *uc_mem;
uint8_t mclk_save[3];
#define VIA_OUT(hwregs, reg, val) *(volatile uint32_t *)((hwregs) + (reg)) = (val)
#define VIA_IN(hwregs, reg) *(volatile uint32_t *)((hwregs) + (reg))
#define VGA_OUT8(hwregs, reg, val) *(volatile uint8_t *)((hwregs) + (reg) + 0x8000) = (val)
#define VGA_IN8(hwregs, reg) *(volatile uint8_t *)((hwregs) + (reg) + 0x8000)
#define VIDEO_OUT(hwregs, reg, val) VIA_OUT((hwregs)+0x200, reg, val)
#define VIDEO_IN(hwregs, reg) VIA_IN((hwregs)+0x200, reg)
#define outb(val,reg) OUTPORT8(reg,val)
#define inb(reg) INPORT8(reg)
#define ALIGN_TO(v, n) (((v) + (n-1)) & ~(n-1))
#define UC_MAP_V1_FIFO_CONTROL(depth, pre_thr, thr) \
(((depth)-1) | ((thr) << 8) | ((pre_thr) << 24))
#define FRAMEBUFFER_START 0x600000
#define FRAMEBUFFER_SIZE 0x200000
#ifdef DEBUG_LOGFILE
FILE *logfile = 0;
#define LOGWRITE(x) {if(logfile) fprintf(logfile,x);}
#else
#define LOGWRITE(x)
#endif
/**
* @brief Unichrome driver vidix capabilities.
*/
static vidix_capability_t uc_cap = {
"VIA CLE266 Unichrome driver",
"Timothy Lee <timothy@siriushk.com>",
TYPE_OUTPUT,
{0, 0, 0, 0},
4096,
4096,
4,
4,
-1,
FLAG_UPSCALER | FLAG_DOWNSCALER,
VENDOR_VIA2,
-1,
{0, 0, 0, 0}
};
/**
* @brief list of card IDs compliant with the Unichrome driver .
*/
static unsigned short uc_card_ids[] = {
DEVICE_VIA2_VT8623_CLE266_AGP
};
/**
* @brief Check age of driver.
*
* @return vidix version number.
*/
unsigned int
vixGetVersion (void)
{
return (VIDIX_VERSION);
}
/**
* @brief Find chip index in Unichrome compliant devices list.
*
* @param chip_id PCI device ID.
*
* @returns index position in uc_card_ids if successful.
* -1 if chip_id is not a compliant chipset ID.
*/
static int
find_chip (unsigned chip_id)
{
unsigned i;
for (i = 0; i < sizeof (uc_card_ids) / sizeof (unsigned short); i++)
{
if (chip_id == uc_card_ids[i])
return i;
}
return -1;
}
/**
* @brief Map hardware settings for vertical scaling.
*
* @param sh source height.
* @param dh destination height.
* @param zoom will hold vertical setting of zoom register.
* @param mini will hold vertical setting of mini register.
*
* @returns 1 if successful.
* 0 if the zooming factor is too large or small.
*
* @note Derived from VIA's V4L driver.
* See ddover.c, DDOVER_HQVCalcZoomHeight()
*/
int
uc_ovl_map_vzoom (int sh, int dh, uint32_t * zoom, uint32_t * mini)
{
uint32_t sh1, tmp, d;
int zoom_ok = 1;
if (sh == dh) /* No zoom */
{
/* Do nothing */
}
else if (sh < dh) /* Zoom in */
{
tmp = (sh * 0x0400) / dh;
zoom_ok = !(tmp > 0x3ff);
*zoom |= (tmp & 0x3ff) | V1_Y_ZOOM_ENABLE;
*mini |= V1_Y_INTERPOLY | V1_YCBCR_INTERPOLY;
}
else /* sw > dh - Zoom out */
{
/* Find a suitable divider (1 << d) = {2, 4, 8 or 16} */
sh1 = sh;
for (d = 1; d < 5; d++)
{
sh1 >>= 1;
if (sh1 <= dh)
break;
}
if (d == 5) /* too small */
{
d = 4;
zoom_ok = 0;
}
*mini |= ((d << 1) - 1) << 16; /* <= {1,3,5,7} << 16 */
/* Add scaling */
if (sh1 < dh)
{
tmp = (sh1 * 0x400) / dh;
*zoom |= ((tmp & 0x3ff) | V1_Y_ZOOM_ENABLE);
*mini |= V1_Y_INTERPOLY | V1_YCBCR_INTERPOLY;
}
}
return zoom_ok;
}
/**
* @brief Map hardware settings for horizontal scaling.
*
* @param sw source width.
* @param dw destination width.
* @param zoom will hold horizontal setting of zoom register.
* @param mini will hold horizontal setting of mini register.
* @param falign will hold fetch aligment.
* @param dcount will hold display count.
*
* @returns 1 if successful.
* 0 if the zooming factor is too large or small.
*
* @note Derived from VIA's V4L driver.
* See ddover.c, DDOVER_HQVCalcZoomWidth() and DDOver_GetDisplayCount()
*/
int
uc_ovl_map_hzoom (int sw, int dw, uint32_t * zoom, uint32_t * mini,
int *falign, int *dcount)
{
uint32_t tmp, sw1, d;
int md; /* Minify-divider */
int zoom_ok = 1;
md = 1;
*falign = 0;
if (sw == dw) /* no zoom */
{
/* Do nothing */
}
else if (sw < dw) /* zoom in */
{
tmp = (sw * 0x0800) / dw;
zoom_ok = !(tmp > 0x7ff);
*zoom |= ((tmp & 0x7ff) << 16) | V1_X_ZOOM_ENABLE;
*mini |= V1_X_INTERPOLY;
}
else /* sw > dw - Zoom out */
{
/* Find a suitable divider (1 << d) = {2, 4, 8 or 16} */
sw1 = sw;
for (d = 1; d < 5; d++)
{
sw1 >>= 1;
if (sw1 <= dw)
break;
}
if (d == 5) /* too small */
{
d = 4;
zoom_ok = 0;
}
md = 1 << d; /* <= {2,4,8,16} */
*falign = ((md << 1) - 1) & 0xf; /* <= {3,7,15,15} */
*mini |= V1_X_INTERPOLY;
*mini |= ((d << 1) - 1) << 24; /* <= {1,3,5,7} << 24 */
/* Add scaling */
if (sw1 < dw)
{
/* CLE bug */
/* tmp = sw1*0x0800 / dw; */
tmp = (sw1 - 2) * 0x0800 / dw;
*zoom |= ((tmp & 0x7ff) << 16) | V1_X_ZOOM_ENABLE;
}
}
*dcount = sw - md;
return zoom_ok;
}
/**
* @brief qword fetch register setting.
*
* @param format overlay pixel format.
* @param sw source width.
*
* @return qword fetch register setting
*
* @note Derived from VIA's V4L driver. See ddover.c, DDOver_GetFetch()
* @note Only call after uc_ovl_map_hzoom()
*/
uint32_t
uc_ovl_map_qwfetch (uint32_t format, int sw)
{
uint32_t fetch = 0;
switch (format)
{
case IMGFMT_YV12:
case IMGFMT_I420:
fetch = ALIGN_TO (sw, 32) >> 4;
break;
case IMGFMT_UYVY:
case IMGFMT_YVYU:
case IMGFMT_YUY2:
fetch = (ALIGN_TO (sw << 1, 16) >> 4) + 1;
break;
case IMGFMT_BGR15:
case IMGFMT_BGR16:
fetch = (ALIGN_TO (sw << 1, 16) >> 4) + 1;
break;
case IMGFMT_BGR32:
fetch = (ALIGN_TO (sw << 2, 16) >> 4) + 1;
break;
default:
printf ("[unichrome] Unexpected pixelformat!");
break;
}
if (fetch < 4)
fetch = 4;
return fetch;
}
/**
* @brief Map pixel format.
*
* @param format pixel format.
*
* @return the mapped pixel format.
*
* @note Derived from VIA's V4L driver. See ddover.c, DDOver_GetV1Format()
*/
uint32_t
uc_ovl_map_format (uint32_t format)
{
switch (format)
{
case IMGFMT_UYVY:
case IMGFMT_YVYU:
case IMGFMT_YUY2:
return V1_COLORSPACE_SIGN | V1_YUV422;
case IMGFMT_IYUV:
return V1_COLORSPACE_SIGN | V1_YCbCr420 | V1_SWAP_SW;
case IMGFMT_YV12:
case IMGFMT_I420:
return V1_COLORSPACE_SIGN | V1_YCbCr420;
case IMGFMT_BGR15:
return V1_RGB15;
case IMGFMT_BGR16:
return V1_RGB16;
case IMGFMT_BGR32:
return V1_RGB32;
default:
printf ("[unichrome] Unexpected pixelformat!");
return V1_YUV422;
}
}
/**
* @brief Calculate V1 control and fifo-control register values.
*
* @param format pixel format.
* @param sw source width.
* @param hwrev CLE266 hardware revision.
* @param extfifo_on set this 1 if the extended FIFO is enabled.
* @param control will hold value for V1_CONTROL.
* @param fifo will hold value for V1_FIFO_CONTROL.
*/
void
uc_ovl_map_v1_control (uint32_t format, int sw,
int hwrev, int extfifo_on,
uint32_t * control, uint32_t * fifo)
{
*control = V1_BOB_ENABLE | uc_ovl_map_format (format);
if (hwrev == 0x10)
{
*control |= V1_EXPIRE_NUM_F;
}
else
{
if (extfifo_on)
{
*control |= V1_EXPIRE_NUM_A | V1_FIFO_EXTENDED;
}
else
{
*control |= V1_EXPIRE_NUM;
}
}
if ((format == IMGFMT_YV12) || (format == IMGFMT_I420))
{
/* Minified video will be skewed without this workaround. */
if (sw <= 80) /* Fetch count <= 5 */
{
*fifo = UC_MAP_V1_FIFO_CONTROL (16, 0, 0);
}
else
{
if (hwrev == 0x10)
*fifo = UC_MAP_V1_FIFO_CONTROL (64, 56, 56);
else
*fifo = UC_MAP_V1_FIFO_CONTROL (16, 12, 8);
}
}
else
{
if (hwrev == 0x10)
{
*fifo = UC_MAP_V1_FIFO_CONTROL (64, 56, 56); /* Default rev 0x10 */
}
else
{
if (extfifo_on)
*fifo = UC_MAP_V1_FIFO_CONTROL (48, 40, 40);
else
*fifo = UC_MAP_V1_FIFO_CONTROL (32, 29, 16); /* Default */
}
}
}
/**
* @brief Setup extended FIFO.
*
* @param extfifo_on pointer determining if extended fifo is enable or not.
* @param dst_w destination width.
*/
void
uc_ovl_setup_fifo (int *extfifo_on, int dst_w)
{
if (dst_w <= 1024) /* Disable extended FIFO */
{
outb (0x16, 0x3c4);
outb (mclk_save[0], 0x3c5);
outb (0x17, 0x3c4);
outb (mclk_save[1], 0x3c5);
outb (0x18, 0x3c4);
outb (mclk_save[2], 0x3c5);
*extfifo_on = 0;
}
else /* Enable extended FIFO */
{
outb (0x17, 0x3c4);
outb (0x2f, 0x3c5);
outb (0x16, 0x3c4);
outb ((mclk_save[0] & 0xf0) | 0x14, 0x3c5);
outb (0x18, 0x3c4);
outb (0x56, 0x3c5);
*extfifo_on = 1;
}
}
void
uc_ovl_vcmd_wait (volatile uint8_t * vio)
{
while ((VIDEO_IN (vio, V_COMPOSE_MODE)
& (V1_COMMAND_FIRE | V3_COMMAND_FIRE)));
}
/**
* @brief Probe hardware to find some useable chipset.
*
* @param verbose specifies verbose level.
* @param force specifies force mode : driver should ignore
* device_id (danger but useful for new devices)
*
* @returns 0 if it can handle something in PC.
* a negative error code otherwise.
*/
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 ("[unichrome] Error occurred during pci scan: %s\n",
strerror (err));
return err;
}
else
{
err = ENXIO;
for (i = 0; i < num_pci; i++)
{
if (lst[i].vendor == VENDOR_VIA2)
{
int idx;
const char *dname;
idx = find_chip (lst[i].device);
if (idx == -1)
continue;
dname = pci_device_name (VENDOR_VIA2, lst[i].device);
dname = dname ? dname : "Unknown chip";
printf ("[unichrome] Found chip: %s\n", dname);
if ((lst[i].command & PCI_COMMAND_IO) == 0)
{
printf ("[unichrome] Device is disabled, ignoring\n");
continue;
}
uc_cap.device_id = lst[i].device;
err = 0;
memcpy (&pci_info, &lst[i], sizeof (pciinfo_t));
break;
}
}
}
if (err && verbose)
printf ("[unichrome] Can't find chip\n");
return err;
}
/**
* @brief Initializes driver.
*
* @returns 0 if ok.
* a negative error code otherwise.
*/
int
vixInit (void)
{
long tmp;
uc_mem = map_phys_mem (pci_info.base0, 0x800000);
enable_app_io ();
outb (0x2f, 0x3c4);
tmp = inb (0x3c5) << 0x18;
vio = map_phys_mem (tmp, 0x1000);
outb (0x16, 0x3c4);
mclk_save[0] = inb (0x3c5);
outb (0x17, 0x3c4);
mclk_save[1] = inb (0x3c5);
outb (0x18, 0x3c4);
mclk_save[2] = inb (0x3c5);
uc_grkey.ckey.blue = 0x00;
uc_grkey.ckey.green = 0x00;
uc_grkey.ckey.red = 0x00;
#ifdef DEBUG_LOGFILE
logfile = fopen ("/tmp/uc_vidix.log", "w");
#endif
return 0;
}
/**
* @brief Destroys driver.
*/
void
vixDestroy (void)
{
#ifdef DEBUG_LOGFILE
if (logfile)
fclose (logfile);
#endif
outb (0x16, 0x3c4);
outb (mclk_save[0], 0x3c5);
outb (0x17, 0x3c4);
outb (mclk_save[1], 0x3c5);
outb (0x18, 0x3c4);
outb (mclk_save[2], 0x3c5);
disable_app_io ();
unmap_phys_mem (uc_mem, 0x800000);
unmap_phys_mem (vio, 0x1000);
}
/**
* @brief Get chipset's hardware capabilities.
*
* @param to Pointer to the vidix_capability_t structure to be filled.
*
* @returns 0.
*/
int
vixGetCapability (vidix_capability_t * to)
{
memcpy (to, &uc_cap, sizeof (vidix_capability_t));
return 0;
}
/**
* @brief Report if the video FourCC is supported by hardware.
*
* @param fourcc input image format.
*
* @returns 1 if the fourcc is supported.
* 0 otherwise.
*/
static int
is_supported_fourcc (uint32_t fourcc)
{
switch (fourcc)
{
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_UYVY:
case IMGFMT_YVYU:
case IMGFMT_YUY2:
case IMGFMT_BGR15:
case IMGFMT_BGR16:
case IMGFMT_BGR32:
return 1;
default:
return 0;
}
}
/**
* @brief Try to configure video memory for given fourcc.
*
* @param to Pointer to the vidix_fourcc_t structure to be filled.
*
* @returns 0 if ok.
* errno otherwise.
*/
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;
}
/**
* @brief Get the GrKeys
*
* @param grkey Pointer to the vidix_grkey_t structure to be filled by driver.
*
* @return 0.
*/
int
vixGetGrKeys (vidix_grkey_t * grkey)
{
memcpy (grkey, &uc_grkey, sizeof (vidix_grkey_t));
return (0);
}
/**
* @brief Set the GrKeys
*
* @param grkey Colorkey to be set.
*
* @return 0.
*/
int
vixSetGrKeys (const vidix_grkey_t * grkey)
{
unsigned long dwCompose = VIDEO_IN (vio, V_COMPOSE_MODE) & ~0x0f;
memcpy (&uc_grkey, grkey, sizeof (vidix_grkey_t));
if (uc_grkey.ckey.op != CKEY_FALSE)
{
/* Set colorkey (how do I detect BPP in hardware ??) */
unsigned long ckey;
if (1) /* Assume 16-bit graphics */
{
ckey = (grkey->ckey.blue & 0x1f)
| ((grkey->ckey.green & 0x3f) << 5)
| ((grkey->ckey.red & 0x1f) << 11);
}
else
{
ckey = (grkey->ckey.blue)
| (grkey->ckey.green << 8) | (grkey->ckey.red << 16);
}
VIDEO_OUT (vio, V_COLOR_KEY, ckey);
dwCompose |= SELECT_VIDEO_IF_COLOR_KEY;
}
/* Execute the changes */
VIDEO_OUT (vio, V_COMPOSE_MODE, dwCompose | V1_COMMAND_FIRE);
return (0);
}
/**
* @brief Unichrome driver equalizer capabilities.
*/
vidix_video_eq_t equal = {
VEQ_CAP_BRIGHTNESS | VEQ_CAP_SATURATION | VEQ_CAP_HUE,
300, 100, 0, 0, 0, 0, 0, 0
};
/**
* @brief Get the equalizer capabilities.
*
* @param eq Pointer to the vidix_video_eq_t structure to be filled by driver.
*
* @return 0.
*/
int
vixPlaybackGetEq (vidix_video_eq_t * eq)
{
memcpy (eq, &equal, sizeof (vidix_video_eq_t));
return 0;
}
/**
* @brief Set the equalizer capabilities for color correction
*
* @param eq equalizer capabilities to be set.
*
* @return 0.
*/
int
vixPlaybackSetEq (const vidix_video_eq_t * eq)
{
return 0;
}
/**
* @brief Y, U, V offsets.
*/
static int YOffs, UOffs, VOffs;
/**
* @brief Configure driver for playback. Driver should prepare BES.
*
* @param info configuration description for playback.
*
* @returns 0 in case of success.
* -1 otherwise.
*/
int
vixConfigPlayback (vidix_playback_t * info)
{
int src_w, drw_w;
int src_h, drw_h;
long base0, pitch;
int uv_size, swap_uv;
unsigned int i;
int extfifo_on;
/* Overlay register settings */
uint32_t win_start, win_end;
uint32_t zoom, mini;
uint32_t dcount, falign, qwfetch;
uint32_t y_start, u_start, v_start;
uint32_t v_ctrl, fifo_ctrl;
if (!is_supported_fourcc (info->fourcc))
return -1;
src_w = info->src.w;
src_h = info->src.h;
drw_w = info->dest.w;
drw_h = info->dest.h;
/* Setup FIFO */
uc_ovl_setup_fifo (&extfifo_on, src_w);
/* Get image format, FIFO size, etc. */
uc_ovl_map_v1_control (info->fourcc, src_w, 3, extfifo_on,
&v_ctrl, &fifo_ctrl);
/* Setup layer window */
win_start = (info->dest.x << 16) | info->dest.y;
win_end = ((info->dest.x + drw_w - 1) << 16) | (info->dest.y + drw_h - 1);
/* Get scaling and data-fetch parameters */
zoom = 0;
mini = 0;
uc_ovl_map_vzoom (src_h, drw_h, &zoom, &mini);
uc_ovl_map_hzoom (src_w, drw_w, &zoom, &mini, &falign, &dcount);
qwfetch = uc_ovl_map_qwfetch (info->fourcc, src_w);
/* Calculate buffer sizes */
swap_uv = 0;
switch (info->fourcc)
{
case IMGFMT_YV12:
swap_uv = 1;
case IMGFMT_I420:
case IMGFMT_UYVY:
case IMGFMT_YVYU:
pitch = ALIGN_TO (src_w, 32);
uv_size = (pitch >> 1) * (src_h >> 1);
break;
case IMGFMT_YUY2:
case IMGFMT_BGR15:
case IMGFMT_BGR16:
pitch = ALIGN_TO (src_w << 1, 32);
uv_size = 0;
break;
case IMGFMT_BGR32:
pitch = ALIGN_TO (src_w << 2, 32);
uv_size = 0;
break;
}
if ((src_w > 4096) || (src_h > 4096) ||
(src_w < 32) || (src_h < 1) || (pitch > 0x1fff))
{
printf ("[unichrome] Layer size out of bounds\n");
}
/* Calculate offsets */
info->offset.y = 0;
info->offset.v = info->offset.y + pitch * src_h;
info->offset.u = info->offset.v + uv_size;
info->frame_size = info->offset.u + uv_size;
YOffs = info->offset.y;
UOffs = (swap_uv ? info->offset.v : info->offset.u);
VOffs = (swap_uv ? info->offset.u : info->offset.v);
/* Assume we have 2 MB to play with */
info->num_frames = FRAMEBUFFER_SIZE / info->frame_size;
if (info->num_frames > VID_PLAY_MAXFRAMES)
info->num_frames = VID_PLAY_MAXFRAMES;
/* Start at 6 MB. Let's hope it's not in use. */
base0 = FRAMEBUFFER_START;
info->dga_addr = uc_mem + base0;
info->dest.pitch.y = 32;
info->dest.pitch.u = 32;
info->dest.pitch.v = 32;
for (i = 0; i < info->num_frames; i++)
{
info->offsets[i] = info->frame_size * i;
frames[i] = base0 + info->offsets[i];
}
/* Write to the hardware */
uc_ovl_vcmd_wait (vio);
/* Configure diy_pitchlay parameters now */
if (v_ctrl & V1_COLORSPACE_SIGN)
{
VIDEO_OUT (vio, V1_ColorSpaceReg_2, ColorSpaceValue_2);
VIDEO_OUT (vio, V1_ColorSpaceReg_1, ColorSpaceValue_1);
}
VIDEO_OUT (vio, V1_CONTROL, v_ctrl);
VIDEO_OUT (vio, V_FIFO_CONTROL, fifo_ctrl);
VIDEO_OUT (vio, V1_WIN_START_Y, win_start);
VIDEO_OUT (vio, V1_WIN_END_Y, win_end);
VIDEO_OUT (vio, V1_SOURCE_HEIGHT, (src_h << 16) | dcount);
VIDEO_OUT (vio, V12_QWORD_PER_LINE, qwfetch << 20);
VIDEO_OUT (vio, V1_STRIDE, pitch | ((pitch >> 1) << 16));
VIDEO_OUT (vio, V1_MINI_CONTROL, mini);
VIDEO_OUT (vio, V1_ZOOM_CONTROL, zoom);
/* Configure buffer address and execute the changes now! */
vixPlaybackFrameSelect (0);
return 0;
}
/**
* @brief Set playback on : driver should activate BES on this call.
*
* @return 0.
*/
int
vixPlaybackOn (void)
{
LOGWRITE ("Enable overlay\n");
/* Turn on overlay */
VIDEO_OUT (vio, V1_CONTROL, VIDEO_IN (vio, V1_CONTROL) | V1_ENABLE);
/* Execute the changes */
VIDEO_OUT (vio, V_COMPOSE_MODE,
VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE);
return 0;
}
/**
* @brief Set playback off : driver should deactivate BES on this call.
*
* @return 0.
*/
int
vixPlaybackOff (void)
{
LOGWRITE ("Disable overlay\n");
uc_ovl_vcmd_wait (vio);
/* Restore FIFO */
VIDEO_OUT (vio, V_FIFO_CONTROL, UC_MAP_V1_FIFO_CONTROL (16, 12, 8));
/* Turn off overlay */
VIDEO_OUT (vio, V1_CONTROL, VIDEO_IN (vio, V1_CONTROL) & ~V1_ENABLE);
/* Execute the changes */
VIDEO_OUT (vio, V_COMPOSE_MODE,
VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE);
return 0;
}
/**
* @brief Driver should prepare and activate corresponded frame.
*
* @param frame the frame index.
*
* @return 0.
*
* @note This function is used only for double and triple buffering
* and never used for single buffering playback.
*/
int
vixPlaybackFrameSelect (unsigned int frame)
{
LOGWRITE ("Frame select\n");
uc_ovl_vcmd_wait (vio);
/* Configure buffer address */
VIDEO_OUT (vio, V1_STARTADDR_Y0, frames[frame] + YOffs);
VIDEO_OUT (vio, V1_STARTADDR_CB0, frames[frame] + UOffs);
VIDEO_OUT (vio, V1_STARTADDR_CR0, frames[frame] + VOffs);
/* Execute the changes */
VIDEO_OUT (vio, V_COMPOSE_MODE,
VIDEO_IN (vio, V_COMPOSE_MODE) | V1_COMMAND_FIRE);
return 0;
}
Reference in New Issue View Git Blame Copy Permalink