From: Krzysztof Halasa <khc@pm.waw.pl>
To: sylvain.meyer@worldonline.fr
Cc: Andrew Morton <akpm@linux-foundation.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH] Intel FB: support for interlaced video modes
Date: Mon, 10 Sep 2007 21:28:23 +0200 [thread overview]
Message-ID: <m3hcm2l3qg.fsf@maximus.localdomain> (raw)
Intel framebuffer now supports interlaced video modes.
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -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;
}
--- a/drivers/video/intelfb/intelfbhw.h
+++ b/drivers/video/intelfb/intelfbhw.h
@@ -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
reply other threads:[~2007-09-10 19:28 UTC|newest]
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