Update ADC channel inversion for rev 5.3

Author: NateMeyer

src/ts_channel.c

@@ -75,7 +75,7 @@ struct ts_channel_hw_conf_s {
         TS_AFE_0_COUPLING_REG, TS_AFE_0_COUPLING_MASK,
         TS_AFE_0_ATTEN_REG,    TS_AFE_0_ATTEN_MASK,
         TS_AFE_0_TRIM_DAC,     TS_AFE_0_TRIM_DPOT,
-        HMCAD15_ADC_IN4,       TS_ADC_CH_INVERT
+        HMCAD15_ADC_IN4,       TS_ADC_CH_NO_INVERT
 
     },
     // Channel 2
@@ -85,7 +85,7 @@ struct ts_channel_hw_conf_s {
         TS_AFE_1_COUPLING_REG, TS_AFE_1_COUPLING_MASK,
         TS_AFE_1_ATTEN_REG,    TS_AFE_1_ATTEN_MASK,
         TS_AFE_1_TRIM_DAC,     TS_AFE_1_TRIM_DPOT,
-        HMCAD15_ADC_IN3,       TS_ADC_CH_INVERT
+        HMCAD15_ADC_IN3,       TS_ADC_CH_NO_INVERT
     },
     // Channel 3
     {
@@ -94,7 +94,7 @@ struct ts_channel_hw_conf_s {
         TS_AFE_2_COUPLING_REG, TS_AFE_2_COUPLING_MASK,
         TS_AFE_2_ATTEN_REG,    TS_AFE_2_ATTEN_MASK,
         TS_AFE_2_TRIM_DAC,     TS_AFE_2_TRIM_DPOT,
-        HMCAD15_ADC_IN2,       TS_ADC_CH_INVERT
+        HMCAD15_ADC_IN2,       TS_ADC_CH_NO_INVERT
     },
     // Channel 4
     {
@@ -103,7 +103,7 @@ struct ts_channel_hw_conf_s {
         TS_AFE_3_COUPLING_REG, TS_AFE_3_COUPLING_MASK,
         TS_AFE_3_ATTEN_REG,    TS_AFE_3_ATTEN_MASK,
         TS_AFE_3_TRIM_DAC,     TS_AFE_3_TRIM_DPOT,
-        HMCAD15_ADC_IN1,       TS_ADC_CH_INVERT
+        HMCAD15_ADC_IN1,       TS_ADC_CH_NO_INVERT
     }
 };
 
@@ -142,6 +142,15 @@ int32_t ts_channel_init(tsChannelHdl_t* pTsChannels, file_t ts)
         betaDevice = true;
     }
 
+    //Units prior to HWID 2 (Gamma HW Rev 5.3) have the ADC P/N pairs swapped
+    if((id & (( 1UL << CSR_DEV_STATUS_HW_ID_HW_REV_SIZE) - 1)) < 0x2)
+    {
+        g_channelConf[0].adc_invert = TS_ADC_CH_INVERT;
+        g_channelConf[1].adc_invert = TS_ADC_CH_INVERT;
+        g_channelConf[2].adc_invert = TS_ADC_CH_INVERT;
+        g_channelConf[3].adc_invert = TS_ADC_CH_INVERT;
+    }
+
     //Initialize Status
     pChan->ctrl_handle = ts;
     pChan->status.adc_lost_buffer_count = 0;