Hi, I am working on using the CSI bus of i.MX6 with a adv7611 chip. I started to work with Steve Longerbeam's tree, and here is the current tree I am using : https://github.com/Vodalys/linux-2.6-imx/tree/mx6-camera-staging-v2-vbx This is a WiP tree, and not intended to be complete right now. But at least, it should be possible to get a picture. I will try to be as complete and synthetic as possible... Right now, I am configuring the ADV7611 in "16-Bit SDR ITU-R BT.656 4:2:2 Mode 0" (Table 73 in Appendix C of the Reference Manual). This means that I have pins [15:8] = [Y7..Y0] and [7:0]=[Cb7,Cr7..Cb0,Cr0]. On my board, thanks to a FPGA, pin 15 is connected to MX6QDL_PAD_CSI0_DAT19__IPU1_CSI0_DATA19 and pin 0 to MX6QDL_PAD_CSI0_DAT4__IPU1_CSI0_DATA04. In the source code, I am asking for a 4:2:2 YUYV packed format. Then, when starting the board, I am doing the following : $> v4l2-ctl -d2 --set-fmt-video=width=1280,height=720,pixelformat=YUYV,field=none,bytesperline=2560 -i3 $> v4l2-ctl -d2 --set-dv-bt-timings index=4 -i3 $> [ 69.360256] adv7611 1-004c: -----Chip status----- [ 69.365652] adv7611 1-004c: Chip power: on [ 69.370446] adv7611 1-004c: EDID enabled port A: No, B: No, C: No, D: No [ 69.378110] adv7611 1-004c: CEC: disabled [ 69.382132] adv7611 1-004c: -----Signal status----- [ 69.387722] adv7611 1-004c: Cable detected (+5V power) port A: No, B: No, C: No, D: No [ 69.396344] adv7611 1-004c: TMDS signal detected: false [ 69.402245] adv7611 1-004c: TMDS signal locked: false [ 69.408015] adv7611 1-004c: SSPD locked: true [ 69.413047] adv7611 1-004c: STDI locked: false [ 69.417529] adv7611 1-004c: CP locked: true [ 69.422402] adv7611 1-004c: CP free run: on [ 69.429013] adv7611 1-004c: Prim-mode = 0x5, video std = 0x13, v_freq = 0x1 [ 69.436022] adv7611 1-004c: -----Video Timings----- [ 69.441594] adv7611 1-004c: STDI: not locked [ 69.449212] adv7611 1-004c: No video detected [ 69.453587] adv7611 1-004c: Configured format: 1280x720p50 (1980x750) [ 69.460066] adv7611 1-004c: horizontal: fp = 440, +sync = 40, bp = 220 [ 69.466637] adv7611 1-004c: vertical: fp = 5, +sync = 5, bp = 20 [ 69.472653] adv7611 1-004c: pixelclock: 74250000 [ 69.477300] adv7611 1-004c: flags (0x0): [ 69.481233] adv7611 1-004c: standards (0x1): CEA [ 69.490112] adv7604 1-0020: -----Chip status----- I keep the ADV7611 running in Free mode, which produces a blue frame, with Y=0x23 and Cr=0x72, Cb=0xD4. Now, I try to capture a frame : $> v4l2-ctl -d2 --stream-mmap --stream-to x.raw --stream-count=1 I don't get anything, and here is the dmesg : [ 187.191644] imx-ipuv3 2400000.ipu: CSI_SENS_CONF = 0x00004920 [ 187.191849] imx-ipuv3 2400000.ipu: CSI_ACT_FRM_SIZE = 0x02CF04FF [ 187.200454] ipu_cpmem_set_image: resolution: 1280x720 stride: 2560 [ 187.200472] ipu_ch_param_write_field 0 125 13 [ 187.200486] ipu_ch_param_write_field 0 138 12 [ 187.200498] ipu_ch_param_write_field 1 102 14 [ 187.200510] ipu_ch_param_write_field 0 107 3 [ 187.200521] ipu_ch_param_write_field 1 85 4 [ 187.200532] ipu_ch_param_write_field 1 78 7 [ 187.200543] ipu_ch_param_write_field 1 0 29 [ 187.200554] ipu_ch_param_write_field 1 29 29 [ 187.200566] ipu_ch_param_write_field 1 78 7 [ 187.200586] ipu_ch_param_write_field 1 93 2 [ 187.201077] mx6-camera-encoder: Enable CSI [ 187.205206] imx-ipuv3 2400000.ipu: ch 0 word 0 - 00000000 00000000 00000000 E0001800 000B3C9F [ 187.205226] imx-ipuv3 2400000.ipu: ch 0 word 1 - 09E60000 013D4000 0103C000 00027FC0 00000000 [ 187.205240] ipu_ch_param_read_field 1 85 4 [ 187.205254] imx-ipuv3 2400000.ipu: PFS 0x8, [ 187.205265] ipu_ch_param_read_field 0 107 3 [ 187.205278] imx-ipuv3 2400000.ipu: BPP 0x3, [ 187.205289] ipu_ch_param_read_field 1 78 7 [ 187.205302] imx-ipuv3 2400000.ipu: NPB 0xf [ 187.205313] ipu_ch_param_read_field 0 125 13 [ 187.205326] imx-ipuv3 2400000.ipu: FW 1279, [ 187.205337] ipu_ch_param_read_field 0 138 12 [ 187.205350] imx-ipuv3 2400000.ipu: FH 719, [ 187.205361] ipu_ch_param_read_field 1 0 29 [ 187.205374] imx-ipuv3 2400000.ipu: EBA0 0x4f300000 [ 187.205385] ipu_ch_param_read_field 1 29 29 [ 187.205398] imx-ipuv3 2400000.ipu: EBA1 0x4f500000 [ 187.205409] ipu_ch_param_read_field 1 102 14 [ 187.205422] imx-ipuv3 2400000.ipu: Stride 2559 [ 187.205433] ipu_ch_param_read_field 0 113 1 [ 187.205445] imx-ipuv3 2400000.ipu: scan_order 0 [ 187.205456] ipu_ch_param_read_field 1 128 14 [ 187.205469] imx-ipuv3 2400000.ipu: uv_stride 0 [ 187.205480] ipu_ch_param_read_field 0 46 22 [ 187.205492] imx-ipuv3 2400000.ipu: u_offset 0x0 [ 187.205541] ipu_ch_param_read_field 0 68 22 [ 187.205557] imx-ipuv3 2400000.ipu: v_offset 0x0 [ 187.205568] ipu_ch_param_read_field 1 116 3 [ 187.205581] imx-ipuv3 2400000.ipu: Width0 0+1, [ 187.205592] ipu_ch_param_read_field 1 119 3 [ 187.205604] imx-ipuv3 2400000.ipu: Width1 0+1, [ 187.205615] ipu_ch_param_read_field 1 122 3 [ 187.205645] imx-ipuv3 2400000.ipu: Width2 0+1, [ 187.205663] ipu_ch_param_read_field 1 125 3 [ 187.205683] imx-ipuv3 2400000.ipu: Width3 0+1, [ 187.205707] ipu_ch_param_read_field 1 128 5 [ 187.205730] imx-ipuv3 2400000.ipu: Offset0 0, [ 187.205750] ipu_ch_param_read_field 1 133 5 [ 187.205774] imx-ipuv3 2400000.ipu: Offset1 0, [ 187.205798] ipu_ch_param_read_field 1 138 5 [ 187.205822] imx-ipuv3 2400000.ipu: Offset2 0, [ 187.205839] ipu_ch_param_read_field 1 143 5 [ 187.205859] imx-ipuv3 2400000.ipu: Offset3 0 [ 187.205883] imx-ipuv3 2400000.ipu: IPU_CONF = 0x00000101 [ 187.205907] imx-ipuv3 2400000.ipu: IDMAC_CONF = 0x0000002F [ 187.205926] imx-ipuv3 2400000.ipu: IDMAC_CHA_EN1 = 0x00000001 [ 187.205951] imx-ipuv3 2400000.ipu: IDMAC_CHA_EN2 = 0x00000000 [ 187.205975] imx-ipuv3 2400000.ipu: IDMAC_CHA_PRI1 = 0x00000001 [ 187.205997] imx-ipuv3 2400000.ipu: IDMAC_CHA_PRI2 = 0x00000000 [ 187.206009] imx-ipuv3 2400000.ipu: IDMAC_BAND_EN1 = 0x00000000 [ 187.206022] imx-ipuv3 2400000.ipu: IDMAC_BAND_EN2 = 0x00000000 [ 187.206034] imx-ipuv3 2400000.ipu: IPU_CHA_DB_MODE_SEL0 = 0x00000001 [ 187.206047] imx-ipuv3 2400000.ipu: IPU_CHA_DB_MODE_SEL1 = 0x00000000 [ 187.206059] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW1 = 0x00000000 [ 187.206071] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW2 = 0x00000000 [ 187.206083] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW3 = 0x00000000 [ 187.206097] imx-ipuv3 2400000.ipu: IPU_FS_DISP_FLOW1 = 0x00000000 [ 187.206110] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(0) = 10800001 [ 187.206122] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(1) = 00000000 [ 187.206135] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(2) = 00000000 [ 187.206148] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(3) = 00000000 [ 187.206161] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(4) = 00000001 [ 187.206174] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(5) = 00000000 [ 187.206187] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(6) = 00000000 [ 187.206200] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(7) = 00000000 [ 187.206213] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(8) = 00000000 [ 187.206226] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(9) = 00000000 [ 187.206240] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(10) = 00000000 [ 187.206253] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(11) = 00000000 [ 187.206266] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(12) = 00000000 [ 187.206279] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(13) = 00000000 [ 187.206293] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(14) = 00000208 [ 187.206307] imx-ipuv3 2400000.ipu: CSI_SENS_CONF: 04004920 [ 187.206319] imx-ipuv3 2400000.ipu: CSI_SENS_FRM_SIZE: 02cf04ff [ 187.206332] imx-ipuv3 2400000.ipu: CSI_ACT_FRM_SIZE: 02cf04ff [ 187.206343] imx-ipuv3 2400000.ipu: CSI_OUT_FRM_CTRL: 00000000 [ 187.206356] imx-ipuv3 2400000.ipu: CSI_TST_CTRL: 00000000 [ 187.206369] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_1: 00040030 [ 187.206381] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_2: 00000000 [ 187.206393] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_3: 00ff0000 [ 187.206406] imx-ipuv3 2400000.ipu: CSI_MIPI_DI: ffffffff [ 187.206418] imx-ipuv3 2400000.ipu: CSI_SKIP: 00000000 [ 188.205908] mx6-camera-encoder: encoder EOF timeout [ 188.213454] mx6-camera v4l2cap@ipu1: restarting [ 188.218089] mx6-camera-encoder: Entering encoder stop [ 189.215677] mx6-camera-encoder: wait last encode EOF timeout [ 189.223292] imx-ipuv3 2400000.ipu: ipu_idmac_put 0 [ 189.223366] mx6-camera-encoder: [Encoder stop]frame seq: 0 [ 189.230825] mx6-camera-encoder: [Encoder stop]frame seq: 1 Now, I am doing something different, replacing the format V4L2_MBUS_FMT_YUYV8_1X16 by V4L2_MBUS_FMT_YUYV8_2X8. This will tell the CSI bus to work on 8 bits and not 16 bits wide. Keeping it like that, the ADV7611 is now outputing data in "8-Bit SDR ITU-R BT.656 Mode 0" so, pins [15:8]=[Y7,Cb7,Cr7..Y0,Cb0,Cr0]. Of course, it is not wrking either : [ 173.032849] imx-ipuv3 2400000.ipu: CSI_SENS_CONF = 0x00000920 [ 173.033069] imx-ipuv3 2400000.ipu: CSI_ACT_FRM_SIZE = 0x02CF04FF [ 173.049295] ipu_cpmem_set_image: resolution: 1280x720 stride: 2560 [ 173.049334] ipu_ch_param_write_field 0 125 13 [ 173.049361] ipu_ch_param_write_field 0 138 12 [ 173.049385] ipu_ch_param_write_field 1 102 14 [ 173.049408] ipu_ch_param_write_field 0 107 3 [ 173.049430] ipu_ch_param_write_field 1 85 4 [ 173.049453] ipu_ch_param_write_field 1 78 7 [ 173.049476] ipu_ch_param_write_field 1 0 29 [ 173.049499] ipu_ch_param_write_field 1 29 29 [ 173.049522] ipu_ch_param_write_field 1 78 7 [ 173.049562] ipu_ch_param_write_field 1 93 2 [ 173.049748] mx6-camera-encoder: Enable CSI [ 173.053905] imx-ipuv3 2400000.ipu: ch 0 word 0 - 00000000 00000000 00000000 E0001800 000B3C9F [ 173.053941] imx-ipuv3 2400000.ipu: ch 0 word 1 - 00000000 00000000 0103C000 00027FC0 00000000 [ 173.053968] ipu_ch_param_read_field 1 85 4 [ 173.053994] imx-ipuv3 2400000.ipu: PFS 0x8, [ 173.054015] ipu_ch_param_read_field 0 107 3 [ 173.054042] imx-ipuv3 2400000.ipu: BPP 0x3, [ 173.054065] ipu_ch_param_read_field 1 78 7 [ 173.054089] imx-ipuv3 2400000.ipu: NPB 0xf [ 173.054110] ipu_ch_param_read_field 0 125 13 [ 173.054136] imx-ipuv3 2400000.ipu: FW 1279, [ 173.054158] ipu_ch_param_read_field 0 138 12 [ 173.054183] imx-ipuv3 2400000.ipu: FH 719, [ 173.054204] ipu_ch_param_read_field 1 0 29 [ 173.054228] imx-ipuv3 2400000.ipu: EBA0 0x0 [ 173.054250] ipu_ch_param_read_field 1 29 29 [ 173.054275] imx-ipuv3 2400000.ipu: EBA1 0x0 [ 173.054295] ipu_ch_param_read_field 1 102 14 [ 173.054320] imx-ipuv3 2400000.ipu: Stride 2559 [ 173.054341] ipu_ch_param_read_field 0 113 1 [ 173.054365] imx-ipuv3 2400000.ipu: scan_order 0 [ 173.054386] ipu_ch_param_read_field 1 128 14 [ 173.054412] imx-ipuv3 2400000.ipu: uv_stride 0 [ 173.054433] ipu_ch_param_read_field 0 46 22 [ 173.054458] imx-ipuv3 2400000.ipu: u_offset 0x0 [ 173.054480] ipu_ch_param_read_field 0 68 22 [ 173.054505] imx-ipuv3 2400000.ipu: v_offset 0x0 [ 173.054527] ipu_ch_param_read_field 1 116 3 [ 173.054551] imx-ipuv3 2400000.ipu: Width0 0+1, [ 173.054574] ipu_ch_param_read_field 1 119 3 [ 173.054599] imx-ipuv3 2400000.ipu: Width1 0+1, [ 173.054621] ipu_ch_param_read_field 1 122 3 [ 173.054646] imx-ipuv3 2400000.ipu: Width2 0+1, [ 173.054667] ipu_ch_param_read_field 1 125 3 [ 173.054692] imx-ipuv3 2400000.ipu: Width3 0+1, [ 173.054713] ipu_ch_param_read_field 1 128 5 [ 173.054738] imx-ipuv3 2400000.ipu: Offset0 0, [ 173.054759] ipu_ch_param_read_field 1 133 5 [ 173.054784] imx-ipuv3 2400000.ipu: Offset1 0, [ 173.054806] ipu_ch_param_read_field 1 138 5 [ 173.054830] imx-ipuv3 2400000.ipu: Offset2 0, [ 173.054851] ipu_ch_param_read_field 1 143 5 [ 173.054876] imx-ipuv3 2400000.ipu: Offset3 0 [ 173.054905] imx-ipuv3 2400000.ipu: IPU_CONF = 0x00000101 [ 173.054929] imx-ipuv3 2400000.ipu: IDMAC_CONF = 0x0000002F [ 173.054955] imx-ipuv3 2400000.ipu: IDMAC_CHA_EN1 = 0x00000001 [ 173.054979] imx-ipuv3 2400000.ipu: IDMAC_CHA_EN2 = 0x00000000 [ 173.055004] imx-ipuv3 2400000.ipu: IDMAC_CHA_PRI1 = 0x00000001 [ 173.055028] imx-ipuv3 2400000.ipu: IDMAC_CHA_PRI2 = 0x00000000 [ 173.055052] imx-ipuv3 2400000.ipu: IDMAC_BAND_EN1 = 0x00000000 [ 173.055076] imx-ipuv3 2400000.ipu: IDMAC_BAND_EN2 = 0x00000000 [ 173.055101] imx-ipuv3 2400000.ipu: IPU_CHA_DB_MODE_SEL0 = 0x00000001 [ 173.055125] imx-ipuv3 2400000.ipu: IPU_CHA_DB_MODE_SEL1 = 0x00000000 [ 173.055149] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW1 = 0x00000000 [ 173.055173] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW2 = 0x00000000 [ 173.055198] imx-ipuv3 2400000.ipu: IPU_FS_PROC_FLOW3 = 0x00000000 [ 173.055222] imx-ipuv3 2400000.ipu: IPU_FS_DISP_FLOW1 = 0x00000000 [ 173.055248] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(0) = 10800001 [ 173.055274] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(1) = 00000000 [ 173.055299] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(2) = 00000000 [ 173.055325] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(3) = 00000000 [ 173.055350] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(4) = 00000001 [ 173.055375] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(5) = 00000000 [ 173.055401] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(6) = 00000000 [ 173.055426] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(7) = 00000000 [ 173.055543] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(8) = 00000000 [ 173.055574] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(9) = 00000000 [ 173.055601] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(10) = 00000000 [ 173.055626] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(11) = 00000000 [ 173.055652] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(12) = 00000000 [ 173.055678] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(13) = 00000000 [ 173.055703] imx-ipuv3 2400000.ipu: IPU_INT_CTRL(14) = 00000208 [ 173.055729] imx-ipuv3 2400000.ipu: CSI_SENS_CONF: 04000920 [ 173.055754] imx-ipuv3 2400000.ipu: CSI_SENS_FRM_SIZE: 02cf04ff [ 173.055778] imx-ipuv3 2400000.ipu: CSI_ACT_FRM_SIZE: 02cf04ff [ 173.055822] imx-ipuv3 2400000.ipu: CSI_OUT_FRM_CTRL: 00000000 [ 173.055862] imx-ipuv3 2400000.ipu: CSI_TST_CTRL: 00000000 [ 173.055901] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_1: 00040030 [ 173.055947] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_2: 00000000 [ 173.055987] imx-ipuv3 2400000.ipu: CSI_CCIR_CODE_3: 00ff0000 [ 173.056026] imx-ipuv3 2400000.ipu: CSI_MIPI_DI: ffffffff [ 173.056065] imx-ipuv3 2400000.ipu: CSI_SKIP: 00000000 [ 174.055502] mx6-camera-encoder: encoder EOF timeout [ 174.060609] mx6-camera v4l2cap@ipu1: restarting [ 174.065171] mx6-camera-encoder: Entering encoder stop Changing bus-width to 8 in DT is not sufficient though... and this is the most annoying part in fact. But, this is the interesting part, when I configure the CSI to have 8 bits wide data, but setting manually the adv7611 back to the 16 bits mode I am able to get a frame ! => This means CSI0_SENS_CONF is 0x04000920 but, I set register 3 of IO map in ADV7611 to 0x80 as in the first try to say to put 16 bits on [15:0] pins. But this frame contains only Y component. If I put a real video as input, I get the luminance only input, but it is clean. $> v4l2-ctl -d2 --set-fmt-video=width=1280,height=720,pixelformat=YUYV,field=none,bytesperline=2560 -i1 Video input set to 1 (adv7611 1-004c: no signal) $> v4l2-ctl -d2 --set-dv-bt-timings index=4 BT timings set $> v4l2-dbg -d2 -c subdev1 -s 0x03 0x80 Register 0x00000003 set to 0x80 $> v4l2-ctl -d2 --stream-mmap --stream-to x.raw --stream-count=1 < $> od -t x1 x.raw 0000000 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 23 * 7020000 Any idea to make the 16 bits mode work with CSI is welcomed as I am pretty stuck right now... :). Thx & Regards, JM -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
