Greetings,
I'm working with custom hardware that has an OMAP3 connected to a BT656 sensor with DATA[0:7] and PCLK connected from the sensor to the OMAP3. I'm working with the OMAP ISP driver from the 2.6.32 based PSP and have my board-support file configured as such:
static struct isp_interface_config bt656_if_config = {
.ccdc_par_ser = ISP_PARLL_YUV_BT,
.dataline_shift = 0x0, /* no shifting of d[0:10] */
.strobe = 0x0,
.prestrobe = 0x0,
.shutter = 0x0,
.wait_hs_vs = 2,
.u.par.par_bridge = 0x0, /* bridge not enabled */
.u.par.par_clk_pol = 0x1, /* inverted - latch data on falling edge */
};
I've verified the following is happening in the ISP driver:
- ispccdc_config_sync_if getting called with syncif:
syncif.ccdc_mastermode = 0;
syncif.datapol = 0;
syncif.datsz = DAT8;
syncif.fldmode = 1;
syncif.fldout = 0;
syncif.fldpol = 0;
syncif.fldstat = 0;
syncif.hdpol = 0;
syncif.ipmod = YUV8;
syncif.vdpol = 0;
syncif.bt_r656_en = 1;
- ISPCCDC_SYN_MODE - ISPCCDC_SYN_MODE_DATSIZ_8, ISPCCDC_SYN_MODE_INPMOD_YCBCR8, ISPCCDC_SYN_MODE_PACK8 are set
- ISPCCDC_REC656IF - ISPCCDC_REC656IF_R656ON is set
- ISP_IRQ0ENABLE - the following are set - IRQ0ENABLE_CCDC_LSC_PREF_ERR_IRQ
| IRQ0ENABLE_HS_VS_IRQ
| IRQ0ENABLE_CCDC_VD0_IRQ | IRQ0ENABLE_CCDC_VD1_IRQ
| IRQ0ENABLE_CSIA_IRQ
| IRQ0ENABLE_CSIB_IRQ
| IRQ0ENABLE_H3A_AWB_DONE_IRQ | IRQ0ENABLE_H3A_AF_DONE_IRQ
My understanding is that VD0/VD1 interrupts should be enabled in my case where there is no external HS/VS input to the OMAP3 ISP. From reading the TRM it seems that when in BT656 mode that SAV/EAV should be decoded from the datastream and responsible for asserting VD0/VD1 interrupts. I can't see exactly where this is specified (that SAV/EAV trigger VD0/VD1 interrupts) in the TRM however because it speaks of VD0/VD1 as always derived from HS/VS signals.
Am I missing something here?
Thanks,
Tim
