variable scope reductions

1 files changed, 33 insertions, 40 deletions

diff --git a/device-functions.c b/device-functions.c
index 958c2cf..338fce7 100644
--- a/device-functions.c
+++ b/device-functions.c
@@ -143,13 +143,9 @@ int Set_Amplitude(int check_possible_only,int pol_override,int override_on,int w
 {
 	int word_out;	  /* what is sent to the DAC */
 	int relay_range,old_range,old_actual_pol;	  /* selects relay range */
-	int i;
-	int error_num;
 	int UseNegData;	/* if polarity is negative and separate piece-wise linear data is available for neg */
 	int point_found;
-	long mask;
 	int entry;
-	int status;
 	int actual_pol;
 
 	if (globals.Flash.enable_avrq_extra_ampls && channel) {
@@ -198,6 +194,7 @@ int Set_Amplitude(int check_possible_only,int pol_override,int override_on,int w
 	}
 
 	if (!check_possible_only) {
+		int i, error_num;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -223,6 +220,7 @@ int Set_Amplitude(int check_possible_only,int pol_override,int override_on,int w
 		actual_pol=pol_override;
 	} else {
 		/* set the amplitude controls now. */
+		int status;
 		if ((status=Set_VI_Control(pwl_ampl_values,channel,new_ampl,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -281,7 +279,7 @@ int Set_Amplitude(int check_possible_only,int pol_override,int override_on,int w
 			globals.Registers.shift_reg_out[3] = ((long)(globals.Registers.shift_reg_out[3] & 0xff07f)) | ((long)(1<<(relay_range+7)));
 		}
 
-		mask = ((long)	1) << (globals.Flash.polarity_xtra_rly[channel]+14);
+		long mask = ((long)	1) << (globals.Flash.polarity_xtra_rly[channel]+14);
 		if (new_ampl<0.0) {
 			globals.Registers.shift_reg_out[2] &= (long)(0xfffff-mask);    /* set O.POL line low to switch pol relay to - */
 		} else {
@@ -321,8 +319,6 @@ int Set_Pw(int check_possible_only,int word_override,int range_override,int chan
 	int word_out;  /* what is sent to the DAC */
 	int cap_range_control;
 	int point_found,relay_range,UseNegData,entry;
-	int i;
-	int check_valid;
 	int status,actual_pol;
 
 	/* abandon if high channel selected by user but not enabled by firmware */
@@ -340,6 +336,7 @@ int Set_Pw(int check_possible_only,int word_override,int range_override,int chan
 	}
 
 	if (!check_possible_only) {
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -462,11 +459,9 @@ int Set_Pw(int check_possible_only,int word_override,int range_override,int chan
 int Set_Offset(int check_possible_only,int override_on,int word_override,int range_override,int channel,float new_offset)
 {
 	int word_out;	  /* what is sent to the DAC */
-	int i;
-	int error_num;
 	int point_found;
 	int entry,dummy1,dummy2,dummy3;
-	int status,actual_pol;
+	int actual_pol;
 	int old_range,relay_range;
 
 	if (!globals.Flash.voltage_offset_enabled[channel] && !globals.Flash.current_offset_enabled[channel]) {
@@ -482,6 +477,7 @@ int Set_Offset(int check_possible_only,int override_on,int word_override,int ran
 	point_found = 0;
 
 	if (!check_possible_only) {
+		int i, error_num;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -499,6 +495,7 @@ int Set_Offset(int check_possible_only,int override_on,int word_override,int ran
 		relay_range=range_override;
 		word_out=word_override;
 	} else {
+		int status;
 		if ((status=Set_VI_Control(pwl_os_values,channel,new_offset,&point_found,
 		                           &relay_range,&dummy2,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -544,11 +541,7 @@ int Set_Offset(int check_possible_only,int override_on,int word_override,int ran
 
 int Set_frequency(int check_possible_only,int word_override,int range_override,int channel,float set_freq)
 {
-	int cap_range_control;	/* what's actually sent to SR */
-	int i;
-	int check_valid;
 	float new_pw;
-	int status;
 	int point_found,relay_range,UseNegData,entry,actual_pol,old_range;
 	int word_out;	/* what is sent to the DAC */
 
@@ -567,6 +560,7 @@ int Set_frequency(int check_possible_only,int word_override,int range_override,i
 	}
 
 	if (!check_possible_only) {
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -588,6 +582,7 @@ int Set_frequency(int check_possible_only,int word_override,int range_override,i
 		relay_range=range_override;
 	} else {
 		/* set the amplitude controls now. */
+		int status;
 		if ((status=Set_VI_Control(pwl_period_values,channel,1.0/set_freq,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -620,9 +615,9 @@ int Set_frequency(int check_possible_only,int word_override,int range_override,i
 	}
 
 	else {
-		if (relay_range==0) {
-			cap_range_control=0;
-		} else {
+		int cap_range_control = 0;
+
+		if (relay_range) {
 			cap_range_control = 1 << (relay_range-1);
 		}
 
@@ -650,9 +645,6 @@ int Set_Delay(int check_possible_only,int word_override,int range_override,int c
 	int word_out;  /* what is sent to the DAC */
 	int cap_range_control;	/* what is actually sent to shift register */
 	float setting;
-	int i;
-	int check_valid;
-	int status;
 	int point_found,relay_range,UseNegData,entry,actual_pol;
 
 	/* abandon if high channel selected by user but not enabled by firmware */
@@ -661,6 +653,7 @@ int Set_Delay(int check_possible_only,int word_override,int range_override,int c
 	}
 
 	if (!check_possible_only) {
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -699,6 +692,7 @@ int Set_Delay(int check_possible_only,int word_override,int range_override,int c
 		relay_range=range_override;
 	} else {
 		/* set the amplitude controls now. */
+		int status;
 		if ((status=Set_VI_Control(pwl_delay_values,channel,setting,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -984,8 +978,6 @@ int Set_Output_State(int channel,int mode)
 int Set_Trig_Source(int channel,int mode)
 {
 	int gate_mode;
-	int i;
-	int error_num;
 	int use_ab_mode;
 	int reset_freq;
 	float use_freq;
@@ -1000,6 +992,7 @@ int Set_Trig_Source(int channel,int mode)
 	reset_freq = 0;
 
 	if (globals.ChannelState[channel].trigger_source!=mode) {
+		int i, error_num;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -1244,7 +1237,6 @@ int Set_Load(int channel, float value)
 
 int Set_EA(int channel,int mode)
 {
-	long amplify_mask, ea_mask;
 	char set_DAC_to_zero;
 
 	/* abandon if high channel selected by user but not enabled by firmware */
@@ -1287,6 +1279,7 @@ int Set_EA(int channel,int mode)
 
 	if (globals.Flash.ea_enabled[channel]) {
 		int ea_reg;
+		long ea_mask;
 
 		if (!channel) {
 			ea_mask = 0x10000;
@@ -1305,7 +1298,7 @@ int Set_EA(int channel,int mode)
 
 
 	if (globals.Flash.ext_amplify_enabled[channel]) {
-		amplify_mask = ((long)	1) << (globals.Flash.ext_amplify_xtra_rly[channel]+14);
+		long amplify_mask = ((long) 1) << (globals.Flash.ext_amplify_xtra_rly[channel]+14);
 
 		if (mode==amp_mode_amplify) {
 			globals.Registers.shift_reg_out[2] |= amplify_mask;
@@ -3350,7 +3343,6 @@ int control_pcb107(int address, int dac, int word, int range)
 int Set_Burst_Count(int channel,int count,float new_burst_time)
 {
 	int check_valid;
-	int hextext_out;
 
 	if (globals.Flash.max_burst_count[channel]<=1) {
 		return Unrecognized;
@@ -3384,6 +3376,8 @@ int Set_Burst_Count(int channel,int count,float new_burst_time)
 		/* Update pulse separation at the same time. This routine does the actual changes. */
 		Set_Burst_Time(0,0,0,channel,new_burst_time);
 	} else {
+		int hextext_out;
+
 		/* reset all lines */
 		I2C_Write(PCF8574+Second_PW_Port,0);
 
@@ -3417,10 +3411,8 @@ int Set_Burst_Count(int channel,int count,float new_burst_time)
 
 int Set_Burst_Time(int check_possible_only,int word_override,int range_override,int channel,float new_burst_time)
 {
-	int check_valid;
 	int count_word_out;
-	int hextext_out;
-	int status,point_found,relay_range,UseNegData,entry,actual_pol,word_out;
+	int point_found,relay_range,UseNegData,entry,actual_pol,word_out;
 
 	if (globals.Flash.max_burst_count[channel]<=1) {
 		return Unrecognized;
@@ -3433,7 +3425,7 @@ int Set_Burst_Time(int check_possible_only,int word_override,int range_override,
 
 	if (!check_possible_only) {
 		/* check duty cycle */
-		int i;
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -3451,6 +3443,7 @@ int Set_Burst_Time(int check_possible_only,int word_override,int range_override,
 		word_out=word_override;
 		relay_range=range_override;
 	} else {
+		int status;
 		if ((status=Set_VI_Control(pwl_burst_values,channel,new_burst_time,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -3477,7 +3470,7 @@ int Set_Burst_Time(int check_possible_only,int word_override,int range_override,
 	I2C_Write(PCF8574+Second_PW_Port,0);
 
 	/* send first hextet */
-	hextext_out=count_word_out & 0x003f;
+	int hextext_out=count_word_out & 0x003f;
 
 	I2C_Write(PCF8574+Second_PW_Port, hextext_out);
 	/* load hextet */
@@ -3515,8 +3508,7 @@ int Set_Burst_Time(int check_possible_only,int word_override,int range_override,
 
 int Set_rise_time(int check_possible_only,int word_override,int range_override,int channel,float new_rise_time)
 {
-	int check_valid;
-	int status,point_found,relay_range,UseNegData,entry,actual_pol,word_out;
+	int point_found,relay_range,UseNegData,entry,actual_pol,word_out;
 	char range_control;
 
 	if (globals.Flash.fixed_rise_time[channel]) {
@@ -3530,7 +3522,7 @@ int Set_rise_time(int check_possible_only,int word_override,int range_override,i
 
 	if (!check_possible_only) {
 		/* check duty cycle */
-		int i;
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -3545,6 +3537,7 @@ int Set_rise_time(int check_possible_only,int word_override,int range_override,i
 		word_out=word_override;
 		relay_range=range_override;
 	} else {
+		int status;
 		if ((status=Set_VI_Control(pwl_rise_time_values,channel,new_rise_time,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;
@@ -3651,7 +3644,6 @@ int Set_rise_time(int check_possible_only,int word_override,int range_override,i
 
 int Set_current_limit(int check_possible_only,int channel,float new_adj_current_limit)
 {
-	int check_valid;
 	float limit;
 	int word_out;
 
@@ -3665,7 +3657,7 @@ int Set_current_limit(int check_possible_only,int channel,float new_adj_current_
 	}
 
 	if (!check_possible_only) {
-		int i;
+		int i, check_valid;
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -3701,10 +3693,7 @@ int Set_current_limit(int check_possible_only,int channel,float new_adj_current_
 
 int Set_avrq_res(int check_possible_only,int word_override,int range_override,int channel,float new_res)
 {
-	int check_valid;
-	int status,point_found,relay_range,UseNegData,entry,actual_pol,word_out;
-
-	float compensated_new_res;
+	int point_found,relay_range,UseNegData,entry,actual_pol,word_out;
 
 	if (!globals.Flash.switchable_load[channel]) {
 		return Unrecognized;
@@ -3716,7 +3705,8 @@ int Set_avrq_res(int check_possible_only,int word_override,int range_override,in
 	}
 
 	if (!check_possible_only) {
-		int i;
+		int i, check_valid;
+
 		for (i=0; i<max_channels; ++i) {
 			TestState[i]=globals.ChannelState[i];
 		}
@@ -3735,12 +3725,15 @@ int Set_avrq_res(int check_possible_only,int word_override,int range_override,in
 		   CH2 = opto VCC
 		   Calibrate res at 3.0V
 		   Compensate for >3.0V */
+		float compensated_new_res;
+
 		if (globals.ChannelState[0].vcc2 > 0.0) {
 			compensated_new_res = new_res * 3.0/globals.ChannelState[0].vcc2;
 		} else {
 			return amplitude_lower_limit;
 		}
 
+		int status;
 		if ((status=Set_VI_Control(pwl_load_type_values,channel,compensated_new_res,&point_found,
 		                           &relay_range,&UseNegData,&entry,&word_out,&actual_pol))) {
 			return status;