From 67b5827faecd3dc3d9977dff7366b8ea2ab4c87a Mon Sep 17 00:00:00 2001 From: Sugandha Gupta Date: Tue, 5 Jun 2018 13:48:07 -0700 Subject: ad9361: Add API to set 1R1T/2R2T timing modes LVDS interface can support both timing modes 1R1T/2R2T The API sets the required bit in catalina registers. --- .../usrp/common/ad9361_driver/ad9361_device.cpp | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'host/lib/usrp/common/ad9361_driver/ad9361_device.cpp') diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp index 56df8bd12..9273edb02 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp @@ -1984,6 +1984,48 @@ void ad9361_device_t::set_active_chains(bool tx1, bool tx2, bool rx1, bool rx2) _io_iface->poke8(0x014, 0x21); } +/* Setup Timing mode depending on active channels. + * + * LVDS interface can have two timing modes - 1R1T and 2R2T + */ +void ad9361_device_t::set_timing_mode(const ad9361_device_t::timing_mode_t timing_mode) +{ + switch (_client_params->get_digital_interface_mode()) { + case AD9361_DDR_FDD_LVCMOS: { + switch(timing_mode) { + case TIMING_MODE_1R1T: { + _io_iface->poke8(0x010, 0xc8); // Swap I&Q on Tx, Swap I&Q on Rx, Toggle frame sync mode + break; + } + case TIMING_MODE_2R2T: { + throw uhd::runtime_error("[ad9361_device_t] [set_timing_mode] 2R2T timing mode not supported for CMOS"); + break; + } + default: + UHD_THROW_INVALID_CODE_PATH(); + } + break; + } + case AD9361_DDR_FDD_LVDS: { + switch(timing_mode) { + case TIMING_MODE_1R1T: { + _io_iface->poke8(0x010, 0xc8); // Swap I&Q on Tx, Swap I&Q on Rx, Toggle frame sync mode, 1R1T timing. + break; + } + case TIMING_MODE_2R2T: { + _io_iface->poke8(0x010, 0xcc); // Swap I&Q on Tx, Swap I&Q on Rx, Toggle frame sync mode, 2R2T timing. + break; + } + default: + UHD_THROW_INVALID_CODE_PATH(); + } + break; + } + default: + throw uhd::runtime_error("[ad9361_device_t] NOT IMPLEMENTED"); + } +} + /* Tune the RX or TX frequency. * * This is the publicly-accessible tune function. It makes sure the tune -- cgit v1.2.3