From 0d365ff30324ea8684388051ac509e7df22929d0 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Mon, 19 Apr 2010 18:31:16 -0700 Subject: pulled aux dac and adc support from microblaze, its in the host now --- firmware/microblaze/lib/lsadc.c | 73 ----------------------------------------- 1 file changed, 73 deletions(-) delete mode 100644 firmware/microblaze/lib/lsadc.c (limited to 'firmware/microblaze/lib/lsadc.c') diff --git a/firmware/microblaze/lib/lsadc.c b/firmware/microblaze/lib/lsadc.c deleted file mode 100644 index 7983552e7..000000000 --- a/firmware/microblaze/lib/lsadc.c +++ /dev/null @@ -1,73 +0,0 @@ -/* -*- c++ -*- */ -/* - * Copyright 2008 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 . - */ - -#include "lsadc.h" -#include "spi.h" -#include "memory_map.h" - - -// AD9712 or AD7922 1 MS/s, 10-/12-bit ADCs - -//#define SPI_SS_DEBUG SPI_SS_RX_DB -#define SPI_SS_DEBUG 0 - - -void -lsadc_init(void) -{ - // nop -} - -/* - * The ADC's are pipelined. That is, you have to tell them - * which of the two inputs you want one cycle ahead of time. - * We could optimize and keep track of which one we used last - * time, but for simplicity we'll always tell it which - * one we want. This takes 2 16-bit xfers, one to set the - * input and one to read the one we want. - */ - -int -_lsadc_read(int which_adc, int slave_select) -{ - uint32_t r; - int channel = which_adc & 0x1; - - // Set CHN and STY equal to channel number. We don't want "daisy chain mode" - uint16_t cmd = (channel << 13) | (channel << 12); - - spi_transact(SPI_TXONLY, slave_select | SPI_SS_DEBUG, - cmd, 16, SPIF_PUSH_RISE | SPIF_LATCH_RISE); - - r = spi_transact(SPI_TXRX, slave_select | SPI_SS_DEBUG, - cmd, 16, SPIF_PUSH_RISE | SPIF_LATCH_RISE); - - return r & 0x0fff; -} - -int -lsadc_read_rx(int which_adc) -{ - return _lsadc_read(which_adc, SPI_SS_RX_ADC); -} - -int -lsadc_read_tx(int which_adc) -{ - return _lsadc_read(which_adc, SPI_SS_TX_ADC); -} -- cgit v1.2.3