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/*
* 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();
// 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
i2c_init();
lsadc_init(); // low-speed ADCs
lsdac_init(); // low-speed DACs
db_init(); // daughterboard init
get_hw_rev();
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;
}
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