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Update the SuperH VEU vidix driver with experimental support for VEU3F.

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Patch by Magnus Damm, damm opensource se


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29990 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
cehoyos
2009-12-10 23:22:19 +00:00
parent 2a0af1ad5d
commit 9aa17fbbb6
1 changed files with 37 additions and 2 deletions
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vidix/sh_veu_vid.c
+37 -2
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@@ -219,6 +219,8 @@ static int get_fb_info(char *device, struct fb_info *fip)
#define VCOFFR 0x224 /* color conversion offset */
#define VCBR 0x228 /* color conversion clip */
#define VRPBR 0xc8 /* resize passband */
/* Helper functions for reading registers. */
static unsigned long read_reg(struct uio_map *ump, int reg_offs)
@@ -323,14 +325,19 @@ static void sh_veu_wait_irq(vidix_playback_t *info)
static int sh_veu_is_veu2h(void)
{
return uio_mmio.size > 0xb8;
return uio_mmio.size == 0x27c;
}
static int sh_veu_is_veu3f(void)
{
return uio_mmio.size == 0xcc;
}
static unsigned long sh_veu_do_scale(struct uio_map *ump,
int vertical, int size_in,
int size_out, int crop_out)
{
unsigned long fixpoint, mant, frac, value, rep;
unsigned long fixpoint, mant, frac, value, rep, vb;
/* calculate FRAC and MANT */
do {
@@ -402,6 +409,34 @@ static unsigned long sh_veu_do_scale(struct uio_map *ump,
}
write_reg(ump, value, VRFSR);
/* VEU3F needs additional VRPBR register handling */
if (sh_veu_is_veu3f()) {
if (size_out > size_in)
vb = 64;
else {
if ((mant >= 8) && (mant < 16))
value = 4;
else if ((mant >= 4) && (mant < 8))
value = 2;
else
value = 1;
vb = 64 * 4096 * value;
vb /= 4096 * mant + frac;
}
/* set resize passband register */
value = read_reg(ump, VRPBR);
if (vertical) {
value &= ~0xffff0000;
value |= vb << 16;
} else {
value &= ~0xffff;
value |= vb;
}
write_reg(ump, value, VRPBR);
}
return (((size_in * crop_out) / size_out) + 0x03) & ~0x03;
}