Sam Grove / TLV320AIC1110

Device driver for TI TLV320AIC1110 voice band codec

Work in Progress

Files at this revision

API Documentation at this revision

Revision 3:4592d862ef88, committed 2013-05-15

Comitter:
sam_grove
Date:
Wed May 15 21:12:22 2013 +0000
Parent:
1:4d559df5733e
Parent:
2:e7c7c0177dd8
Child:
4:470f89e786f9
Commit message:
Merged.

Changed in this revision

TLV320AIC1110.cpp Show annotated file Show diff for this revision Revisions of this file
TLV320AIC1110.h Show annotated file Show diff for this revision Revisions of this file 
--- a/TLV320AIC1110.cpp	Wed May 15 21:07:10 2013 +0000
+++ b/TLV320AIC1110.cpp	Wed May 15 21:12:22 2013 +0000
@@ -26,7 +26,7 @@
 TLV320AIC1110::TLV320AIC1110(I2C &i2c)
 {
     _i2c = &i2c;
-    _i2c->frequency(100000);
+    _i2c->frequency(400000);
     
     return;
 }
@@ -36,16 +36,16 @@
     return;
 }
 
-void TLV320AIC1110::init(void)
+void TLV320AIC1110::init(void) const
 {
-    writeRegister(0x00, 0x9B);
-    writeRegister(0x01, 0x00);
-    writeRegister(0x06, 0x81);
+    writeRegister(POWER_CONTROL, 0x9B);
+    writeRegister(MODE_CONTROL, 0x00);
+    writeRegister(AUX, 0x81);
     
     return;
 }
 
-void TLV320AIC1110::regDump(void)
+void TLV320AIC1110::regDump(void) const
 {
     for(int i=0; i<7; i++)
     {
@@ -55,7 +55,7 @@
     return;
 }
 
-void TLV320AIC1110::writeRegister(const uint8_t reg, const uint8_t value)
+void TLV320AIC1110::writeRegister(const TLV320AIC1110_REGISTERS reg, const uint8_t value) const
 {
     const uint8_t w_address = 0xE2;
     uint8_t data[2] = {reg, value};
@@ -66,31 +66,29 @@
         ERROR("write failed\n");
     }
     __enable_irq();
-
-//    _i2c->start();
-//    _i2c->write(w_address);
-//    _i2c->write(reg);
-//    _i2c->write(value);
-//    _i2c->stop();
         
     return;
 }
 
-uint8_t TLV320AIC1110::readRegister(const uint8_t reg)
+uint8_t TLV320AIC1110::readRegister(const uint8_t reg) const
 {
     const uint8_t w_address = 0xE2;
     const uint8_t r_address = 0xE3;
-    uint8_t data[1] = {reg};
+    char data[1] = {reg};
     __disable_irq();
-    _i2c->start();
-    _i2c->write(w_address);
-    _i2c->write(reg);
-    _i2c->stop();
-    _i2c->start();
-    _i2c->write(r_address);
-    data[0] = _i2c->read(1);
-    _i2c->stop();
+    _i2c->write(w_address, (char *)data, 1, 1);
+    _i2c->read (r_address, data, 1);
     __enable_irq();
+    
+//    _i2c->start();
+//    _i2c->write(w_address);
+//    _i2c->write(reg);
+//    _i2c->stop();
+//    _i2c->start();
+//    _i2c->write(r_address);
+//    data[0] = _i2c->read(1);
+//    _i2c->stop();
+    
     return data[0];
 }
 

--- a/TLV320AIC1110.h	Wed May 15 21:07:10 2013 +0000
+++ b/TLV320AIC1110.h	Wed May 15 21:12:22 2013 +0000
@@ -42,14 +42,18 @@
 private:
     I2C     *_i2c;
     
-    void writeRegister(const uint8_t reg, const uint8_t value);
-    uint8_t readRegister(const uint8_t reg);
+    enum TLV320AIC1110_REGISTERS
+    {
+        POWER_CONTROL = 0, MODE_CONTROL, TXPGA, RXPGA, HI_DTMF, LO_DTMF, AUX
+    };
 
 public:
     TLV320AIC1110(I2C &i2c);
     ~TLV320AIC1110();
-    void init(void);
-    void regDump(void);
+    void regDump(void) const ;
+    void init(void) const ;
+    void writeRegister(const TLV320AIC1110_REGISTERS reg, const uint8_t value) const ;
+    uint8_t readRegister(const uint8_t reg) const ;
 };