Hello,
I want to run DVEMV to EDTV timings (525p).
I modify the linux driver in this way:
In the static int davincifb_probe(*struct* device *dev)
{ **
printk("Setting Up Clocks for DM420 OSD\n"); //* Initialize the VPSS
Clock Control register *//
dispc_reg_out(VPSS_CLKCTL, 0x19); /// 0x19 old value 0x18 (27MHz
clock)/
printk(KERN_INFO "Enabling vsync and hsync output\n"); //* Ghido -
Enable VYSNC and HSYNC output *//
dispc_reg_merge( VENC_VIDCTL, 0, VENC_VIDCTL_SYDIR); //* Ghido -
Enable VSYNC and HSYNC signals *//
dispc_reg_out( VENC_SYNCCTL, 0xF);
etc...
and create this function:
static void davincifb_vga_rgb_config(int on)
{
DBGENTER;
*if* (on) {
//* Reset video encoder module *//
dispc_reg_out(VENC_VMOD, 0);
//* Enable Composite output and start video encoder *//
dispc_reg_out(VENC_VMOD, ( VENC_VMOD_VENC));
//* Video encoder clock divisor set to 1 (for progressive) *//
dispc_reg_out(VPBE_PCR, VPBE_PCR_VENC_DIV);
//* Set REC656 Mode *//
dispc_reg_out(VENC_YCCCTL, 0x1);
//* set RGB LPF sampling frequency to ENC clock / 2 *//
dispc_reg_merge(VENC_RGBCTL, 0x0200, 0x0200);
//* Ghido - Enable output mode and NTSC progressive *//
dispc_reg_out(VENC_VMOD, 0x1103);///0x0103);/
//* Ghido - Say to DAC that it is running to 54 MHz *//
dispc_reg_merge(VENC_VDPRO, VENC_VDPRO_DAFRQ|0x7, VENC_VDPRO_DAFRQ|0x7);
///|0x300 for test/
//* Ghido - Say to DAC to go in RGB mode and remove sync on green*//
dispc_reg_merge(VENC_CMPNT, VENC_CMPNT_MRGB,
VENC_CMPNT_MRGB|VENC_CMPNT_MSYG);
//* Enable Component output; DAC A: Y, DAC B: Pb, DAC C: Pr *//
dispc_reg_out(VENC_DACSEL, 0x543);
//* Enable all DACs *//
dispc_reg_out(VENC_DACTST, 0);
} *else* {
//* Reset video encoder module *//
dispc_reg_out(VENC_VMOD, 0);
}
DBGEXIT;
}
I add this function in the correct position. I add some defines to manage this
but...
When I enable colorbar I see the colorbar in the correct way but when I try to
use the framebuffer the image is completely scrambled.
Anyone tried to do this or have some idea?
Thank you.
Emanuele Ghidoli
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