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| author | Josh Blum <josh@joshknows.com> | 2011-01-11 12:19:22 -0800 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2011-01-11 12:19:22 -0800 |
| commit | 599771914d0848875a0056cd60850eec39b06654 (patch) | |
| tree | 66ddf3ee03ca33a19be565bb6fb5d1b22b52fc3c /firmware/zpu/lib/pkt_ctrl.c | |
| parent | 09e06246984546ad29c159a64f8c0419b81f8013 (diff) | |
| download | uhd-599771914d0848875a0056cd60850eec39b06654.tar.gz uhd-599771914d0848875a0056cd60850eec39b06654.tar.bz2 uhd-599771914d0848875a0056cd60850eec39b06654.zip | |
usrp2: restart read before mode switch, added comments
use cmake compiler force macro (to simplify things),
added copyright updates dates to some files
Diffstat (limited to 'firmware/zpu/lib/pkt_ctrl.c')
| -rw-r--r-- | firmware/zpu/lib/pkt_ctrl.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/firmware/zpu/lib/pkt_ctrl.c b/firmware/zpu/lib/pkt_ctrl.c index 341ad44e1..2bbe2f843 100644 --- a/firmware/zpu/lib/pkt_ctrl.c +++ b/firmware/zpu/lib/pkt_ctrl.c @@ -1,5 +1,5 @@ /* - * Copyright 2010 Ettus Research LLC + * Copyright 2010-2011 Ettus Research LLC * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -18,7 +18,6 @@ #include "pkt_ctrl.h" #include "memory_map.h" #include <nonstdio.h> -#include <mdelay.h> //status signals from WB into PR #define CPU_STAT_RD_DONE (1 << 0) @@ -46,13 +45,12 @@ void pkt_ctrl_program_inspector( } void pkt_ctrl_set_routing_mode(pkt_ctrl_routing_mode_t mode){ - mdelay(100); //give a little delay to space out subsequent calls - switch(mode){ - case PKT_CTRL_ROUTING_MODE_SLAVE: router_ctrl->mode_ctrl = 0; break; - case PKT_CTRL_ROUTING_MODE_MASTER: router_ctrl->mode_ctrl = 1; break; - } - router_ctrl->iface_ctrl = CPU_CTRL_WR_CLEAR; //reset the write state machine - pkt_ctrl_release_incoming_buffer(); //reset the read state machine, and read + //About to change the mode; ensure that we are accepting packets. + //The plumbing will not switch if it cannot pass an end of packet. + pkt_ctrl_release_incoming_buffer(); + + //Change the mode; this switches the valves and crossbars. + router_ctrl->mode_ctrl = mode; } static inline void cpu_stat_wait_for(int bm){ |