On 07/30/2012 02:56 PM, David Basden wrote: >>>>> Right now I really don't know where I should look for the solution of >>>>> the problem. It seems that the tuner reset does not have any effect on the >>>>> tuner whatsoever. > > Can I suggest setting GPIO5 to 1, leave it there, and see if it breaks. If it > doesn't, GPIO5 on the RTL isn't setup correctly somehow. > > At the same time, I was rereading code from: > > http://git.linuxtv.org/anttip/media_tree.git/blob/3efd26330fda97e06279cbca170ae4a0dee53220:/drivers/media/dvb/dvb-usb/rtl28xxu.c#l898 > > and at no point is GPIO5 actually set to an output or enabled that I can find. > rtl2832u_frontend_attach skips doing so. (Actually, I seem to remember running > into this problem while trying to use some DVB driver code as an example of > how to setup the RTL to talk to the FC0012) > > Try giving the patch below a go. Sorry, I don't have a build environment to > hand, so there might be a typo I haven't picked up, but the upshot is that > I'm moving the FC0012 detection to the end, setting up GPIO5, resetting the > tuner and then trying to probe for the FC0012. > > Please let me know if this helps :) > > David > > --- a/rtl28xxu.c 2012-07-30 22:31:53.789638678 +1000 > +++ b/rtl28xxu.c 2012-07-30 22:48:35.774607232 +1000 > @@ -550,15 +550,6 @@ > > priv->tuner = TUNER_NONE; > > - /* check FC0012 ID register; reg=00 val=a1 */ > - ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc0012); > - if (ret == 0 && buf[0] == 0xa1) { > - priv->tuner = TUNER_RTL2832_FC0012; > - rtl2832_config = &rtl28xxu_rtl2832_fc0012_config; > - info("%s: FC0012 tuner found", __func__); > - goto found; > - } > - > /* check FC0013 ID register; reg=00 val=a3 */ > ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc0013); > if (ret == 0 && buf[0] == 0xa3) { > @@ -640,6 +631,71 @@ > goto unsupported; > } > > + /* If it's a FC0012, we need to bring GPIO5/RESET > + out of floating or it's not going to show up. > + We set GPIO5 to an output, enable the output, then > + reset the tuner by bringing GPIO5 high then low again. > + > + We're testing this last so that we don't accidentally > + mess with other hardware that wouldn't like us messing > + with whatever is connected to the rtl2832's GPIO5 > + */ > + > + /* close demod I2C gate */ > + ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close); > + if (ret) > + goto err; > + > + /* Set GPIO5 to be an output */ > + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_DIR, &val); > + if (ret) > + goto err; > + > + val &= 0xdf; > + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_DIR, val); > + if (ret) > + goto err; > + > + /* enable as output GPIO5 */ > + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_OUT_EN, &val); > + if (ret) > + goto err; > + > + val |= 0x20; > + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_EN, val); > + if (ret) > + goto err; > + > + /* set GPIO5 high to reset fc0012 (if it exists) */ > + ret = rtl28xx_rd_reg(adap->dev, SYS_GPIO_OUT_VAL, &val); > + if (ret) > + goto err; > + > + val |= 0x20; > + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, val); > + if (ret) > + goto err; > + > + /* bring GPIO5 low again after reset */ > + val &= 0xdf; > + ret = rtl28xx_wr_reg(adap->dev, SYS_GPIO_OUT_VAL, val); > + if (ret) > + goto err; > + > + /* re-open demod I2C gate */ > + ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_open); > + if (ret) > + goto err; > + > + /* check FC0012 ID register; reg=00 val=a1 */ > + ret = rtl28xxu_ctrl_msg(adap->dev, &req_fc0012); > + if (ret == 0 && buf[0] == 0xa1) { > + priv->tuner = TUNER_RTL2832_FC0012; > + rtl2832_config = &rtl28xxu_rtl2832_fc0012_config; > + info("%s: FC0012 tuner found", __func__); > + goto found; > + } > + > unsupported: > /* close demod I2C gate */ > ret = rtl28xxu_ctrl_msg(adap->dev, &req_gate_close); > …sorry for the delay, After applied patch no luck - in attach is dmesg for working original Realtek driver(dvb_usb_rtl2832), and second one(dvb-usb-rtl28xxu) rtl2832 part by Thomas with tuner issue, still not working. Most intriguing is tuner get stucked by tuning(t-zapping)! Cheers, poma ps. Thank you so far, really thorough explanation!
dvb-usb-rtl28xxu-dmesg.txt … rtl28xxu_module_init: rtl28xxu_probe: interface=0 check for warm bda 2831 check for warm 14aa 160 check for warm 14aa 161 something went very wrong, device was not found in current device list - let's see what comes next. check for warm ccd a9 check for warm 1f4d b803 dvb-usb: found a 'G-Tek Electronics Group Lifeview LV5TDLX DVB-T' in warm state. power control: 1 rtl2832u_power_ctrl: onoff=1 dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. all in all I will use 24576 bytes for streaming allocating buffer 0 buffer 0: ffff8800cf827000 (dma: 3481432064) allocating buffer 1 buffer 1: ffff8800cf828000 (dma: 3481436160) allocating buffer 2 buffer 2: ffff8800cf829000 (dma: 3481440256) allocating buffer 3 buffer 3: ffff8800cf82a000 (dma: 3481444352) allocating buffer 4 buffer 4: ffff8800cf82b000 (dma: 3481448448) allocating buffer 5 buffer 5: ffff8800cf82c000 (dma: 3481452544) allocation successful DVB: registering new adapter (G-Tek Electronics Group Lifeview LV5TDLX DVB-T) DVB: register adapter0/demux0 @ minor: 0 (0x00) DVB: register adapter0/dvr0 @ minor: 1 (0x01) DVB: register adapter0/net0 @ minor: 2 (0x02) rtl2832u_frontend_attach: rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 rtl28xxu_ctrl_msg: failed=-32 No compatible tuner found dvb-usb: no frontend was attached by 'G-Tek Electronics Group Lifeview LV5TDLX DVB-T' Registered IR keymap rc-empty input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:04.1/usb2/2-3/rc/rc0/input12 rc0: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:04.1/usb2/2-3/rc/rc0 dvb-usb: schedule remote query interval to 400 msecs. power control: 0 rtl2832u_power_ctrl: onoff=0 dvb-usb: G-Tek Electronics Group Lifeview LV5TDLX DVB-T successfully initialized and connected. rtl28xxu_probe: interface=1 usbcore: registered new interface driver dvb_usb_rtl28xxu …
dvb_usb_rtl2832-dmesg.txt … +info debug open_rtl2832u_usb_module_init dvb-usb: found a 'DVB-T TV Stick' in warm state. dvb-usb: will pass the complete MPEG2 transport stream to the software demuxer. DVB: registering new adapter (DVB-T TV Stick) DVB: register adapter0/demux0 @ minor: 0 (0x00) DVB: register adapter0/dvr0 @ minor: 1 (0x01) DVB: register adapter0/net0 @ minor: 2 (0x02) +rtl2832u_fe_attach : chialing 0409-1 +usb_init_setting +usb_init_bulk_setting RTL2832U usb_init_bulk_setting : USB2.0 HIGH SPEED (480Mb/s) -usb_init_bulk_setting +usb_epa_fifo_reset -usb_epa_fifo_reset -usb_init_setting +gpio3_out_setting -gpio3_out_setting +demod_ctl1_setting -demod_ctl1_setting +suspend_latch_setting -suspend_latch_setting +demod_ctl_setting -demod_ctl_setting +set_tuner_power -set_tuner_power +check_tuner_type error!! read_rtl2832_tuner_register: ret=-32, DA=0xc0, len=1, offset=0x0, data=( 0xf8, ) error!! read_rtl2832_tuner_register: ret=-32, DA=0xac, len=1, offset=0x1, data=( 0xf8, ) error!! read_rtl2832_tuner_register: ret=-32, DA=0xc0, len=1, offset=0x0, data=( 0xf8, ) error!! read_rtl2832_tuner_register: ret=-32, DA=0xc0, len=1, offset=0x0, data=( 0xf8, ) error!! read_rtl2832_tuner_register: ret=-32, DA=0xc0, len=2, offset=0x7e, data=( 0xf8, 0xd, ) error try= 1!! write_rtl2832_stdi2c: ret=-32, DA=0xc0, len=2, data=( 0xfb, 0xd9, ) error try= 2!! write_rtl2832_stdi2c: ret=-32, DA=0xc0, len=2, data=( 0xfb, 0xd9, ) error try= 3!! write_rtl2832_stdi2c: ret=-32, DA=0xc0, len=2, data=( 0xfb, 0xd9, ) error try= 4!! write_rtl2832_stdi2c: ret=-32, DA=0xc0, len=2, data=( 0xfb, 0xd9, ) error try= 5!! write_rtl2832_stdi2c: ret=-32, DA=0xc0, len=2, data=( 0xfb, 0xd9, ) error try= 1!! read_rtl2832_stdi2c: ret=-32, DA=0xc0, len=1, data=( 0x8, ) error try= 2!! read_rtl2832_stdi2c: ret=-32, DA=0xc0, len=1, data=( 0x8, ) error try= 3!! read_rtl2832_stdi2c: ret=-32, DA=0xc0, len=1, data=( 0x8, ) error try= 4!! read_rtl2832_stdi2c: ret=-32, DA=0xc0, len=1, data=( 0x8, ) error try= 5!! read_rtl2832_stdi2c: ret=-32, DA=0xc0, len=1, data=( 0x8, ) RTL2832U check_tuner_type : FC0012 tuner on board... +check_dtmb_support +set_demod_2836_power onoff = 1 error!! read_demod_register: ret=-32, DA=0x3e, len=1, page=0, offset=0x1, data=( 0xa0, ) -set_demod_2836_power onoff = 1 fail error!! read_demod_register: ret=-32, DA=0x3e, len=2, page=5, offset=0x10, data=( 0xfb, 0xd9, ) -check_dtmb_support RTL2836 NOT FOUND..... +set_demod_2836_power onoff = 0 error!! read_demod_register: ret=-32, DA=0x3e, len=1, page=0, offset=0x1, data=( 0xa0, ) -set_demod_2836_power onoff = 0 fail -check_dtmb_support +check_dvbc_support +set_demod_2840_power onoff = 1 +rtl2840_on_hwreset error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x1, data=( 0x25, ) error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x1, data=( 0x25, ) +rtl2840_on_hwreset Page 0, addr 0x01 = 0x25 error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x1, data=( 0x25, ) +rtl2840_on_hwreset Page 0, addr 0x01 = 0x25 -rtl2840_on_hwreset error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 1!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0xa5, ) error try = 2!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0xa5, ) error try = 3!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0xa5, ) error try = 4!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0xa5, ) error try = 5!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0xa5, ) -set_demod_2840_power onoff = 1 error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x10, ) -check_dvbc_support RTL2840 NOT FOUND..... +set_demod_2840_power onoff = 0 error!! read_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 1!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 2!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 3!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 4!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) error try = 5!! write_demod_register: ret=-32, DA=0x44, len=1, page=0, offset=0x4, data=( 0x25, ) -set_demod_2840_power onoff = 0 -check_dvbc_support demod_type is 0 +build_nim_module +build_2832_nim_module build_2832_nim_module BuildRtl2832Fc0012Module -build_2832_nim_module -build_nim_module -rtl2832u_fe_attach dvb_register_frontend DVB: registering adapter 0 frontend 0 (Realtek DVB-T RTL2832)... DVB: register adapter0/frontend0 @ minor: 3 (0x03) dvb_frontend_clear_cache() Clearing cache for delivery system 3 input: IR-receiver inside an USB DVB receiver as /devices/pci0000:00/0000:00:04.1/usb2/2-3/input/input13 dvb-usb: schedule remote query interval to 287 msecs. dvb-usb: DVB-T TV Stick successfully initialized and connected. usbcore: registered new interface driver dvb_usb_rtl2832u …
