Add support for v1.6 pcb with PCM1862.

software/sys_controller/pcm1862/pcm1862.c

@@ -0,0 +1,60 @@
+//
+// Copyright (C) 2017  Markus Hiienkari <mhiienka@niksula.hut.fi>
+//
+// This file is part of Open Source Scan Converter project.
+//
+// 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 <stdio.h>
+#include <unistd.h>
+#include "system.h"
+#include "i2c_opencores.h"
+#include "pcm1862.h"
+
+inline alt_u32 pcm1862_readreg(alt_u8 regaddr)
+{
+    //Phase 1
+    I2C_start(I2CA_BASE, PCM1862_BASE, 0);
+    I2C_write(I2CA_BASE, regaddr, 0);
+
+    //Phase 2
+    I2C_start(I2CA_BASE, PCM1862_BASE, 1);
+    return I2C_read(I2CA_BASE,1);
+}
+
+inline void pcm1862_writereg(alt_u8 regaddr, alt_u8 data)
+{
+    I2C_start(I2CA_BASE, PCM1862_BASE, 0);
+    I2C_write(I2CA_BASE, regaddr, 0);
+    I2C_write(I2CA_BASE, data, 1);
+}
+
+void pcm_source_sel(tvp_input_t input) {
+    alt_u8 adc_ch = 1<<(3-input);
+
+    pcm1862_writereg(PCM1862_ADC1L, adc_ch);
+    pcm1862_writereg(PCM1862_ADC1R, adc_ch);
+}
+
+int pcm1862_init()
+{
+    if (pcm1862_readreg(0x05) != 0x86)
+        return 0;
+
+    //pcm1862_writereg(0x00, 0xff);
+    pcm1862_writereg(PCM1862_CLKCONFIG, 0x90);
+
+    return 1;
+}

software/sys_controller/pcm1862/pcm1862.h

@@ -0,0 +1,31 @@
+//
+// Copyright (C) 2017  Markus Hiienkari <mhiienka@niksula.hut.fi>
+//
+// This file is part of Open Source Scan Converter project.
+//
+// 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/>.
+//
+
+#ifndef PCM1862_H_
+#define PCM1862_H_
+
+#include "pcm1862_regs.h"
+#include "sysconfig.h"
+#include "tvp7002.h"
+
+void pcm_source_sel(tvp_input_t input) ;
+
+int pcm1862_init();
+
+#endif /* PCM1862_H_ */

software/sys_controller/pcm1862/pcm1862_regs.h

@@ -0,0 +1,51 @@
+//
+// Copyright (C) 2017  Markus Hiienkari <mhiienka@niksula.hut.fi>
+//
+// This file is part of Open Source Scan Converter project.
+//
+// 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/>.
+//
+
+#ifndef PCM1862_REGS_H_
+#define PCM1862_REGS_H_
+
+#define PCM1862_BASE (0x94>>1)
+
+#define PCM1862_PAGESEL         0x00
+#define PCM1862_PGA1L           0x01
+#define PCM1862_PGA1R           0x02
+#define PCM1862_PGA2L           0x03
+#define PCM1862_PGA2R           0x04
+#define PCM1862_PGACONFIG       0x05
+#define PCM1862_ADC1L           0x06
+#define PCM1862_ADC1R           0x07
+#define PCM1862_ADC2L           0x08
+#define PCM1862_ADC2R           0x09
+#define PCM1862_ADC2CONFIG      0x0A
+#define PCM1862_PCMFMT          0x0B
+#define PCM1862_TDMFMT          0x0C
+#define PCM1862_TXTDM_OFFSET    0x0D
+#define PCM1862_RXTDM_OFFSET    0x0E
+#define PCM1862_DPGA1_GAIN_L    0x0F
+
+#define PCM1862_DPGA1_GAIN_R    0x16
+#define PCM1862_DPGA2_GAIN_L    0x17
+#define PCM1862_DPGA2_GAIN_R    0x18
+#define PCM1862_DPGA_CONFIG     0x19
+#define PCM1862_DMIC_CONFIG     0x1A
+#define PCM1862_DIN_RESAMPLE    0x1B
+
+#define PCM1862_CLKCONFIG       0x20
+
+#endif /* PCM1862_REGS_H_ */