From c473cc56fafcb47d6ba1f16e8c9fb89ff6c57bca Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Fri, 5 Nov 2010 12:32:09 -0700
Subject: usrp1: pulled in cmake build system for usrp1 firmware

---
 firmware/fx2/usrp1/board_specific.c | 113 ++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 firmware/fx2/usrp1/board_specific.c

(limited to 'firmware/fx2/usrp1/board_specific.c')

diff --git a/firmware/fx2/usrp1/board_specific.c b/firmware/fx2/usrp1/board_specific.c
new file mode 100644
index 000000000..ef0081d84
--- /dev/null
+++ b/firmware/fx2/usrp1/board_specific.c
@@ -0,0 +1,113 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2004 Free Software Foundation, Inc.
+ * 
+ * This file is part of GNU Radio
+ * 
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3, or (at your option)
+ * any later version.
+ * 
+ * GNU Radio is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "usrp_common.h"
+#include "spi.h"
+
+void
+set_led_0 (unsigned char on)
+{
+  if (!on)			// active low
+    USRP_PC |= bmPC_LED0;
+  else
+    USRP_PC &= ~bmPC_LED0;
+}
+
+void 
+set_led_1 (unsigned char on)
+{
+  if (!on)			// active low
+    USRP_PC |= bmPC_LED1;
+  else
+    USRP_PC &= ~bmPC_LED1;
+}
+
+void
+toggle_led_0 (void)
+{
+  USRP_PC ^= bmPC_LED0;
+}
+
+void
+toggle_led_1 (void)
+{
+  USRP_PC ^= bmPC_LED1;
+}
+
+void
+la_trace_init (void)
+{
+}
+
+void
+set_sleep_bits (unsigned char bits, unsigned char mask)
+{
+  // NOP on usrp1
+}
+
+static xdata unsigned char xbuf[1];
+
+void
+write_9862 (unsigned char which, unsigned char regno, unsigned char value)
+{
+  xbuf[0] = value;
+  
+  spi_write (0, regno & 0x3f,
+	     which == 0 ? SPI_ENABLE_CODEC_A : SPI_ENABLE_CODEC_B,
+	     SPI_FMT_MSB | SPI_FMT_HDR_1,
+	     xbuf, 1);
+}
+
+void
+write_both_9862s (unsigned char regno, unsigned char value)
+{
+  xbuf[0] = value;
+  
+  spi_write (0, regno & 0x3f,
+	     SPI_ENABLE_CODEC_A | SPI_ENABLE_CODEC_B,
+	     SPI_FMT_MSB | SPI_FMT_HDR_1,
+	     xbuf, 1);
+}
+
+#define REG_RX_PWR_DN		 1
+#define	REG_TX_PWR_DN		 8
+#define	REG_TX_MODULATOR	20
+
+static void
+power_down_9862s (void)
+{
+  write_both_9862s (REG_RX_PWR_DN,    0x01);
+  write_both_9862s (REG_TX_PWR_DN,    0x0f);	// pwr dn digital and analog_both
+  write_both_9862s (REG_TX_MODULATOR, 0x00);	// coarse & fine modulators disabled
+}
+
+void
+init_board (void)
+{
+  la_trace_init ();
+  init_spi ();
+
+  USRP_PC &= ~bmPC_nRESET;	// active low reset
+  USRP_PC |= bmPC_nRESET;
+
+  power_down_9862s ();
+}
-- 
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