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Diffstat (limited to 'components/codec-uda1342/uda1342.c')
| -rw-r--r-- | components/codec-uda1342/uda1342.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/components/codec-uda1342/uda1342.c b/components/codec-uda1342/uda1342.c new file mode 100644 index 0000000..79cc212 --- /dev/null +++ b/components/codec-uda1342/uda1342.c @@ -0,0 +1,160 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+ //------------------------------------------------------------------------------
+/// \unit
+///
+/// !Purpose
+///
+/// UDA1342 driver
+///
+/// !Usage
+///
+/// Explanation on the usage of the code made available through the header file.
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+#include "uda1342.h"
+#include <board.h>
+#include <utility/trace.h>
+
+#define TWITIMEOUTMAX 50000
+
+//------------------------------------------------------------------------------
+// Definitions
+//------------------------------------------------------------------------------
+
+typedef struct {
+ const char* name;
+ unsigned char address;
+ unsigned short defvalue;
+} t_register;
+
+t_register tab_uda1342_register[] =
+{
+ { "SYSTEM ", UDA1342_REG_SYSTEM , 0x1A02 },
+ { "SUB_SYSTEM ", UDA1342_REG_SUB_SYSTEM , 0x0000 },
+ { "DAC_FEATURE ", UDA1342_REG_DAC_FEATURE , 0x0000 },
+ { "DAC_MASTER_VOLUME", UDA1342_REG_DAC_MASTER_VOLUME, 0x0000 },
+ { "DAC_MIXER_VOLUME ", UDA1342_REG_DAC_MIXER_VOLUME , 0x0000 },
+ { "GAIN_CH1 ", UDA1342_REG_GAIN_CH1 , 0x0000 },
+ { "GAIN_CH2 ", UDA1342_REG_GAIN_CH2 , 0x0000 },
+ { "EVALUATION ", UDA1342_REG_EVALUATION , 0x0000 },
+};
+
+#define TAB_UDA1342_SIZE (sizeof(tab_uda1342_register)/sizeof(tab_uda1342_register[0]))
+
+//------------------------------------------------------------------------------
+// Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Read data from UDA1342 Register.
+/// \param pTwid pointer to twi driver structure
+/// \param device twi slave address
+/// \param regAddr register address to read.
+//------------------------------------------------------------------------------
+unsigned short UDA1342_Read(
+ Twid *pTwid,
+ unsigned char device,
+ unsigned char regAddr)
+{
+ unsigned short bitsDataRegister;
+ unsigned char Tdata[2]={0,0};
+
+ TWID_Read(pTwid, device, regAddr, 1, Tdata, 2, 0);
+ bitsDataRegister = (Tdata[0] << 8) | Tdata[1];
+ return bitsDataRegister;
+}
+
+//------------------------------------------------------------------------------
+/// Write data to UDA1342 Register.
+/// \param pTwid pointer to twi driver structure
+/// \param device twi slave address
+/// \param regAddr register address to read.
+/// \param data data to write
+//------------------------------------------------------------------------------
+void UDA1342_Write(
+ Twid *pTwid,
+ unsigned char device,
+ unsigned char regAddr,
+ unsigned short data)
+{
+ unsigned char tmpData[2];
+ tmpData[0] = (data & 0xff00) >> 8;
+ tmpData[1] = data & 0xff;
+ TWID_Write(pTwid, device, regAddr, 1, tmpData, 2, 0);
+}
+
+//------------------------------------------------------------------------------
+/// Init UDA1342 to DAC mode.
+/// \param pTwid pointer to twi driver structure
+/// \param device twi slave address
+//------------------------------------------------------------------------------
+unsigned char UDA1342_DAC_Init(
+ Twid *pTwid,
+ unsigned int device,
+ unsigned char isClock384)
+{
+ // reset all registers to default values
+ // and set system register
+ if(isClock384)
+ UDA1342_Write(pTwid, device, UDA1342_REG_SYSTEM, 0x9A22);
+ else
+ UDA1342_Write(pTwid, device, UDA1342_REG_SYSTEM, 0x9A02);
+
+ return 0;
+}
+
+//------------------------------------------------------------------------------
+/// Display component registers
+/// \param pTwid pointer to twi driver structure
+/// \param device twi slave address
+//------------------------------------------------------------------------------
+void UDA1342_DisplayRegisters(
+ Twid *pTwid,
+ unsigned int device)
+{
+ unsigned int i;
+
+ TRACE_PERM_WP("UDA1342 registers values\n\r");
+ TRACE_PERM_WP("------------------------------------\n\r");
+
+ for(i=0;i<TAB_UDA1342_SIZE;i++) {
+
+ TRACE_PERM_WP(" %s %02x val %04x (%04x)\n\r",
+ tab_uda1342_register[i].name,
+ tab_uda1342_register[i].address,
+ UDA1342_Read(pTwid, device, tab_uda1342_register[i].address),
+ tab_uda1342_register[i].defvalue
+ );
+ }
+}
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