From 9876d92981cdeaf25362eff64864d0a54deccdab Mon Sep 17 00:00:00 2001
From: Sean Cross <sean@xobs.io>
Date: Tue, 26 Feb 2019 13:10:19 +0800
Subject: [PATCH] fpga: convert tabs to spaces

Signed-off-by: Sean Cross <sean@xobs.io>
---
 fpga.c | 112 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 56 insertions(+), 56 deletions(-)

diff --git a/fpga.c b/fpga.c
index 88b112c..dc353a5 100644
--- a/fpga.c
+++ b/fpga.c
@@ -11,11 +11,11 @@
 #include "fpga.h"
 
 struct ff_fpga {
-	struct {
-		int reset;
-		int done;
-		int cs;
-	} pins;
+    struct {
+        int reset;
+        int done;
+        int cs;
+    } pins;
 };
 
 int fpgaDone(struct ff_fpga *fpga) {
@@ -23,90 +23,90 @@ int fpgaDone(struct ff_fpga *fpga) {
 }
 
 int fpgaResetSlave(struct ff_fpga *fpga) {
-        // Put the FPGA into reset
-        gpioSetMode(fpga->pins.reset, PI_OUTPUT);
-        gpioWrite(fpga->pins.reset, 0);
+    // Put the FPGA into reset
+    gpioSetMode(fpga->pins.reset, PI_OUTPUT);
+    gpioWrite(fpga->pins.reset, 0);
 
-        // Set the CS pin to a GPIO, which will let us control it
-        gpioSetMode(fpga->pins.cs, PI_OUTPUT);
+    // Set the CS pin to a GPIO, which will let us control it
+    gpioSetMode(fpga->pins.cs, PI_OUTPUT);
 
-        // Set CS to 0, which will put the FPGA into slave mode
-        gpioWrite(fpga->pins.cs, 0);
+    // Set CS to 0, which will put the FPGA into slave mode
+    gpioWrite(fpga->pins.cs, 0);
 
-        usleep(10000); // XXX figure out correct sleep length here
+    usleep(10000); // XXX figure out correct sleep length here
 
-        // Bring the FPGA out of reset
-        gpioWrite(fpga->pins.reset, 1);
+    // Bring the FPGA out of reset
+    gpioWrite(fpga->pins.reset, 1);
 
-        usleep(1200); // 13.2.SPI Slave Configuration Process
+    usleep(1200); // 13.2.SPI Slave Configuration Process
 
-	// Release the CS pin
-        gpioWrite(fpga->pins.cs, 1);
+    // Release the CS pin
+    gpioWrite(fpga->pins.cs, 1);
 
-	return 0;
+    return 0;
 }
 
 int fpgaResetMaster(struct ff_fpga *fpga) {
 
-        // Put the FPGA into reset
-        gpioSetMode(fpga->pins.reset, PI_OUTPUT);
-        gpioWrite(fpga->pins.reset, 0);
+    // Put the FPGA into reset
+    gpioSetMode(fpga->pins.reset, PI_OUTPUT);
+    gpioWrite(fpga->pins.reset, 0);
 
-        // Set the CS pin to a GPIO, which will let us control it
-        gpioSetMode(fpga->pins.cs, PI_OUTPUT);
+    // Set the CS pin to a GPIO, which will let us control it
+    gpioSetMode(fpga->pins.cs, PI_OUTPUT);
 
-        // Set CS to 1, which will put the FPGA into "self boot" mode
-        gpioWrite(fpga->pins.cs, 1);
+    // Set CS to 1, which will put the FPGA into "self boot" mode
+    gpioWrite(fpga->pins.cs, 1);
 
-        usleep(10000); // XXX figure out correct sleep length here
+    usleep(10000); // XXX figure out correct sleep length here
 
-        // Bring the FPGA out of reset
-        gpioWrite(fpga->pins.reset, 1);
+    // Bring the FPGA out of reset
+    gpioWrite(fpga->pins.reset, 1);
 
-        usleep(1200); // 13.2.SPI Slave Configuration Process
+    usleep(1200); // 13.2.SPI Slave Configuration Process
 
-	return 0;
+    return 0;
 }
 
 int fpgaReset(struct ff_fpga *fpga) {
-        // Put the FPGA into reset
-        gpioSetMode(fpga->pins.reset, PI_OUTPUT);
-        gpioWrite(fpga->pins.reset, 0);
-	return 0;
+    // Put the FPGA into reset
+    gpioSetMode(fpga->pins.reset, PI_OUTPUT);
+    gpioWrite(fpga->pins.reset, 0);
+    return 0;
 }
 
 int fpgaInit(struct ff_fpga *fpga) {
-        // Put the FPGA into reset
-        gpioSetMode(fpga->pins.reset, PI_OUTPUT);
-        gpioWrite(fpga->pins.reset, 0);
+    // Put the FPGA into reset
+    gpioSetMode(fpga->pins.reset, PI_OUTPUT);
+    gpioWrite(fpga->pins.reset, 0);
 
-        // Also monitor the C_DONE pin
-        gpioSetMode(fpga->pins.done, PI_INPUT);
+    // Also monitor the C_DONE pin
+    gpioSetMode(fpga->pins.done, PI_INPUT);
 
-	return 0;
+    return 0;
 }
 
 struct ff_fpga *fpgaAlloc(void) {
-	struct ff_fpga *fpga = (struct ff_fpga *)malloc(sizeof(struct ff_fpga));
-	memset(fpga, 0, sizeof(*fpga));
-	return fpga;
+    struct ff_fpga *fpga = (struct ff_fpga *)malloc(sizeof(struct ff_fpga));
+    memset(fpga, 0, sizeof(*fpga));
+    return fpga;
 }
 
 void fpgaSetPin(struct ff_fpga *fpga, enum fpga_pin pin, int val) {
-	switch (pin) {
-	case FP_RESET: fpga->pins.reset = val; break;
-        case FP_DONE: fpga->pins.done = val; break;
-        case FP_CS: fpga->pins.cs = val; break;
-	default: fprintf(stderr, "unrecognized pin: %d\n", pin); break;
-	}
+    switch (pin) {
+    case FP_RESET: fpga->pins.reset = val; break;
+    case FP_DONE: fpga->pins.done = val; break;
+    case FP_CS: fpga->pins.cs = val; break;
+    default: fprintf(stderr, "unrecognized pin: %d\n", pin); break;
+    }
 }
 
 void fpgaFree(struct ff_fpga **fpga) {
-	if (!fpga)
-		return;
-	if (!*fpga)
-		return;
+    if (!fpga)
+        return;
+    if (!*fpga)
+        return;
 
-	free(*fpga);
-	*fpga = NULL;
+    free(*fpga);
+    *fpga = NULL;
 }