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Intel FB: support for interlaced video modes 

Intel framebuffer now supports interlaced video modes.

Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Krzysztof Halasa 2007-10-16 01:29:18 -07:00 committed by Linus Torvalds
parent 68e5e9d734
commit 10b98368a0
2 changed files with 11 additions and 5 deletions
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12
drivers/video/intelfb/intelfbhw.c
View File

@ -323,11 +323,7 @@ intelfbhw_validate_mode(struct intelfb_info *dinfo,
return 1;
}
/* Check for interlaced/doublescan modes. */
if (var->vmode & FB_VMODE_INTERLACED) {
WRN_MSG("Mode is interlaced.\n");
return 1;
}
/* Check for doublescan modes. */
if (var->vmode & FB_VMODE_DOUBLE) {
WRN_MSG("Mode is double-scan.\n");
return 1;
@ -1220,6 +1216,12 @@ intelfbhw_mode_to_hw(struct intelfb_info *dinfo, struct intelfb_hwstate *hw,
/* Set the palette to 8-bit mode. */
*pipe_conf &= ~PIPECONF_GAMMA;
if (var->vmode & FB_VMODE_INTERLACED)
*pipe_conf |= PIPECONF_INTERLACE_W_FIELD_INDICATION;
else
*pipe_conf &= ~PIPECONF_INTERLACE_MASK;
return 0;
}

4
drivers/video/intelfb/intelfbhw.h
View File

@ -286,6 +286,10 @@
#define PIPECONF_UNLOCKED 0
#define PIPECONF_GAMMA (1 << 24)
#define PIPECONF_PALETTE 0
#define PIPECONF_PROGRESSIVE (0 << 21)
#define PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21)
#define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21)
#define PIPECONF_INTERLACE_MASK (7 << 21)
#define DISPARB 0x70030
#define DISPARB_AEND_MASK 0x1ff