Imported Upstream version 3.2.2

[debian/gnuradio] / usrp2 / firmware / lib / u2_init.c

diff --git a/usrp2/firmware/lib/u2_init.c b/usrp2/firmware/lib/u2_init.c
new file mode 100644 (file)
index 0000000..9a1eb16
--- /dev/null
+++ b/usrp2/firmware/lib/u2_init.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright 2007 Free Software Foundation, Inc.
+ *
+ * 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "u2_init.h"
+#include "memory_map.h"
+#include "spi.h"
+#include "pic.h"
+#include "hal_io.h"
+#include "lsadc.h"
+#include "lsdac.h"
+#include "buffer_pool.h"
+#include "hal_uart.h"
+#include "i2c.h"
+#include "bool.h"
+#include "mdelay.h"
+#include "ad9777.h"
+#include "clocks.h"
+#include "db.h"
+#include "usrp2_i2c_addr.h"
+
+//#include "nonstdio.h"
+
+unsigned char u2_hw_rev_major;
+unsigned char u2_hw_rev_minor;
+
+static inline void
+get_hw_rev(void)
+{
+  bool ok = eeprom_read(I2C_ADDR_MBOARD, MBOARD_REV_LSB, &u2_hw_rev_minor, 1);
+  ok &= eeprom_read(I2C_ADDR_MBOARD, MBOARD_REV_MSB, &u2_hw_rev_major, 1);
+}
+
+/*
+ * We ought to arrange for this to be called before main, but for now,
+ * we require that the user's main call u2_init as the first thing...
+ */
+bool
+u2_init(void)
+{
+  // Set GPIOs to inputs, disable GPIO streaming
+  hal_gpio_set_ddr(GPIO_TX_BANK, 0x0000, 0xffff);
+  hal_gpio_set_ddr(GPIO_RX_BANK, 0x0000, 0xffff);
+
+  hal_gpio_write(GPIO_TX_BANK, 0x0000, 0xffff);        // init s/w output value to zero
+  hal_gpio_write(GPIO_RX_BANK, 0x0000, 0xffff);
+
+  dsp_rx_regs->gpio_stream_enable = 0; // I, Q LSBs come from DSP
+
+  hal_io_init();
+
+  // init spi, so that we can switch over to the high-speed clock
+  spi_init();
+
+  // init i2c so we can read our rev
+  i2c_init();
+  get_hw_rev();
+
+  // set up the default clocks
+  clocks_init();
+
+  // clocks_enable_test_clk(true,1);
+
+  // Enable ADCs
+  output_regs->adc_ctrl = ADC_CTRL_ON;
+
+  // Set up AD9777 DAC
+  ad9777_write_reg(0, R0_1R);
+  ad9777_write_reg(1, R1_INTERP_4X | R1_REAL_MIX);
+  ad9777_write_reg(2, 0);
+  ad9777_write_reg(3, R3_PLL_DIV_1);
+  ad9777_write_reg(4, R4_PLL_ON | R4_CP_AUTO);
+  ad9777_write_reg(5, R5_I_FINE_GAIN(0));
+  ad9777_write_reg(6, R6_I_COARSE_GAIN(0xf));
+  ad9777_write_reg(7, 0);      // I dac offset
+  ad9777_write_reg(8, 0);
+  ad9777_write_reg(9,  R9_Q_FINE_GAIN(0));
+  ad9777_write_reg(10, R10_Q_COARSE_GAIN(0xf));
+  ad9777_write_reg(11, 0);     // Q dac offset
+  ad9777_write_reg(12, 0);
+  
+  // Initial values for tx and rx mux registers
+  dsp_tx_regs->tx_mux = 0x10;
+  dsp_rx_regs->rx_mux = 0x44444444;
+
+  // Set up serdes
+  output_regs->serdes_ctrl = (SERDES_ENABLE | SERDES_RXEN);
+
+  pic_init();  // progammable interrupt controller
+  bp_init();   // buffer pool
+  lsadc_init();            // low-speed ADCs
+  lsdac_init();            // low-speed DACs
+  db_init();       // daughterboard init
+  
+  hal_enable_ints();
+
+  // flash all leds to let us know board is alive
+  hal_set_leds(0x0, 0x1f);
+  mdelay(100);
+  hal_set_leds(0x1f, 0x1f);
+  mdelay(100);
+  hal_set_leds(0x1, 0x1f);  // Leave the first one on
+
+#if 0
+  // test register readback
+  int rr, vv;
+  vv = ad9777_read_reg(0);
+  printf("ad9777 reg[0] = 0x%x\n", vv);
+  
+  for (rr = 0x04; rr <= 0x0d; rr++){
+    vv = ad9510_read_reg(rr);
+    printf("ad9510 reg[0x%x] = 0x%x\n", rr, vv);
+  }
+#endif
+  
+  return true;
+}