fpga: Clean coding style

No functional changes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>

drivers/fpga/fpga.c

@@ -22,122 +22,99 @@
  *
  */
 
-/*
- *  Generic FPGA support
- */
+/* Generic FPGA support */
 #include <common.h>             /* core U-Boot definitions */
 #include <xilinx.h>             /* xilinx specific definitions */
 #include <altera.h>             /* altera specific definitions */
 #include <lattice.h>
 
-#if 0
-#define FPGA_DEBUG              /* define FPGA_DEBUG to get debug messages */
-#endif
-
 /* Local definitions */
 #ifndef CONFIG_MAX_FPGA_DEVICES
 #define CONFIG_MAX_FPGA_DEVICES		5
 #endif
 
-/* Enable/Disable debug console messages */
-#ifdef FPGA_DEBUG
-#define	PRINTF(fmt,args...)	printf (fmt ,##args)
-#else
-#define	PRINTF(fmt,args...)
-#endif
-
 /* Local static data */
 static int next_desc = FPGA_INVALID_DEVICE;
 static fpga_desc desc_table[CONFIG_MAX_FPGA_DEVICES];
 
-/* Local static functions */
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum );
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf,
-					 size_t bsize, char *fn );
-static int fpga_dev_info( int devnum );
-
-
-/* ------------------------------------------------------------------------- */
-
-/* fpga_no_sup
+/*
+ * fpga_no_sup
  * 'no support' message function
  */
-static void fpga_no_sup( char *fn, char *msg )
+static void fpga_no_sup(char *fn, char *msg)
 {
-	if ( fn && msg ) {
-		printf( "%s: No support for %s.\n", fn, msg);
-	} else if ( msg ) {
-		printf( "No support for %s.\n", msg);
-	} else {
-		printf( "No FPGA suport!\n");
-	}
+	if (fn && msg)
+		printf("%s: No support for %s.\n", fn, msg);
+	else if (msg)
+		printf("No support for %s.\n", msg);
+	else
+		printf("No FPGA suport!\n");
 }
 
 
 /* fpga_get_desc
  *	map a device number to a descriptor
  */
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_get_desc( int devnum )
+static const fpga_desc *const fpga_get_desc(int devnum)
 {
-	fpga_desc *desc = (fpga_desc * )NULL;
+	fpga_desc *desc = (fpga_desc *)NULL;
 
-	if (( devnum >= 0 ) && (devnum < next_desc )) {
+	if ((devnum >= 0) && (devnum < next_desc)) {
 		desc = &desc_table[devnum];
-		PRINTF( "%s: found fpga descriptor #%d @ 0x%p\n",
-				__FUNCTION__, devnum, desc );
+		debug("%s: found fpga descriptor #%d @ 0x%p\n",
+		      __func__, devnum, desc);
 	}
 
 	return desc;
 }
 
-
-/* fpga_validate
+/*
+ * fpga_validate
  *	generic parameter checking code
  */
-static __attribute__((__const__)) fpga_desc * __attribute__((__const__)) fpga_validate(int devnum, const void *buf,
-					 size_t bsize, char *fn )
+static const fpga_desc *const fpga_validate(int devnum, const void *buf,
+					 size_t bsize, char *fn)
 {
-	fpga_desc * desc = fpga_get_desc( devnum );
+	const fpga_desc *desc = fpga_get_desc(devnum);
 
-	if ( !desc ) {
-		printf( "%s: Invalid device number %d\n", fn, devnum );
-	}
+	if (!desc)
+		printf("%s: Invalid device number %d\n", fn, devnum);
 
-	if ( !buf ) {
-		printf( "%s: Null buffer.\n", fn );
+	if (!buf) {
+		printf("%s: Null buffer.\n", fn);
 		return (fpga_desc * const)NULL;
 	}
 	return desc;
 }
 
-
-/* fpga_dev_info
+/*
+ * fpga_dev_info
  *	generic multiplexing code
  */
-static int fpga_dev_info( int devnum )
+static int fpga_dev_info(int devnum)
 {
-	int ret_val = FPGA_FAIL;           /* assume failure */
-	const fpga_desc * const desc = fpga_get_desc( devnum );
+	int ret_val = FPGA_FAIL; /* assume failure */
+	const fpga_desc * const desc = fpga_get_desc(devnum);
 
-	if ( desc ) {
-		PRINTF( "%s: Device Descriptor @ 0x%p\n",
-				__FUNCTION__, desc->devdesc );
+	if (desc) {
+		debug("%s: Device Descriptor @ 0x%p\n",
+		      __func__, desc->devdesc);
 
-		switch ( desc->devtype ) {
+		switch (desc->devtype) {
 		case fpga_xilinx:
 #if defined(CONFIG_FPGA_XILINX)
-			printf( "Xilinx Device\nDescriptor @ 0x%p\n", desc );
-			ret_val = xilinx_info( desc->devdesc );
+			printf("Xilinx Device\nDescriptor @ 0x%p\n", desc);
+			ret_val = xilinx_info(desc->devdesc);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
+			fpga_no_sup((char *)__func__, "Xilinx devices");
 #endif
 			break;
 		case fpga_altera:
 #if defined(CONFIG_FPGA_ALTERA)
-			printf( "Altera Device\nDescriptor @ 0x%p\n", desc );
-			ret_val = altera_info( desc->devdesc );
+			printf("Altera Device\nDescriptor @ 0x%p\n", desc);
+			ret_val = altera_info(desc->devdesc);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
+			fpga_no_sup((char *)__func__, "Altera devices");
 #endif
 			break;
 		case fpga_lattice:
@@ -145,171 +122,174 @@ static int fpga_dev_info( int devnum )
 			printf("Lattice Device\nDescriptor @ 0x%p\n", desc);
 			ret_val = lattice_info(desc->devdesc);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
+			fpga_no_sup((char *)__func__, "Lattice devices");
 #endif
 			break;
 		default:
-			printf( "%s: Invalid or unsupported device type %d\n",
-					__FUNCTION__, desc->devtype );
+			printf("%s: Invalid or unsupported device type %d\n",
+			       __func__, desc->devtype);
 		}
 	} else {
-		printf( "%s: Invalid device number %d\n",
-			__FUNCTION__, devnum );
+		printf("%s: Invalid device number %d\n", __func__, devnum);
 	}
 
 	return ret_val;
 }
 
-
-/* ------------------------------------------------------------------------- */
-/* fgpa_init is usually called from misc_init_r() and MUST be called
+/*
+ * fgpa_init is usually called from misc_init_r() and MUST be called
  * before any of the other fpga functions are used.
  */
 void fpga_init(void)
 {
 	next_desc = 0;
-	memset( desc_table, 0, sizeof(desc_table));
+	memset(desc_table, 0, sizeof(desc_table));
 
-	PRINTF( "%s: CONFIG_FPGA = 0x%x\n", __FUNCTION__, CONFIG_FPGA );
+	debug("%s: CONFIG_FPGA = 0x%x\n", __func__, CONFIG_FPGA);
 }
 
-/* fpga_count
+/*
+ * fpga_count
  * Basic interface function to get the current number of devices available.
  */
-int fpga_count( void )
+int fpga_count(void)
 {
 	return next_desc;
 }
 
-/* fpga_add
+/*
+ * fpga_add
  *	Add the device descriptor to the device table.
  */
-int fpga_add( fpga_type devtype, void *desc )
+int fpga_add(fpga_type devtype, void *desc)
 {
 	int devnum = FPGA_INVALID_DEVICE;
 
-	if ( next_desc  < 0 ) {
-		printf( "%s: FPGA support not initialized!\n", __FUNCTION__ );
-	} else if (( devtype > fpga_min_type ) && ( devtype < fpga_undefined )) {
-		if ( desc ) {
-			if ( next_desc < CONFIG_MAX_FPGA_DEVICES ) {
+	if (next_desc < 0) {
+		printf("%s: FPGA support not initialized!\n", __func__);
+	} else if ((devtype > fpga_min_type) && (devtype < fpga_undefined)) {
+		if (desc) {
+			if (next_desc < CONFIG_MAX_FPGA_DEVICES) {
 				devnum = next_desc;
 				desc_table[next_desc].devtype = devtype;
 				desc_table[next_desc++].devdesc = desc;
 			} else {
-				printf( "%s: Exceeded Max FPGA device count\n", __FUNCTION__ );
+				printf("%s: Exceeded Max FPGA device count\n",
+				       __func__);
 			}
 		} else {
-			printf( "%s: NULL device descriptor\n", __FUNCTION__ );
+			printf("%s: NULL device descriptor\n", __func__);
 		}
 	} else {
-		printf( "%s: Unsupported FPGA type %d\n", __FUNCTION__, devtype );
+		printf("%s: Unsupported FPGA type %d\n", __func__, devtype);
 	}
 
 	return devnum;
 }
 
 /*
- *	Generic multiplexing code
+ * Generic multiplexing code
  */
 int fpga_load(int devnum, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;           /* assume failure */
-	fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
+	const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
+					      (char *)__func__);
 
-	if ( desc ) {
-		switch ( desc->devtype ) {
+	if (desc) {
+		switch (desc->devtype) {
 		case fpga_xilinx:
 #if defined(CONFIG_FPGA_XILINX)
-			ret_val = xilinx_load( desc->devdesc, buf, bsize );
+			ret_val = xilinx_load(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
+			fpga_no_sup((char *)__func__, "Xilinx devices");
 #endif
 			break;
 		case fpga_altera:
 #if defined(CONFIG_FPGA_ALTERA)
-			ret_val = altera_load( desc->devdesc, buf, bsize );
+			ret_val = altera_load(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
+			fpga_no_sup((char *)__func__, "Altera devices");
 #endif
 			break;
 		case fpga_lattice:
 #if defined(CONFIG_FPGA_LATTICE)
 			ret_val = lattice_load(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
+			fpga_no_sup((char *)__func__, "Lattice devices");
 #endif
 			break;
 		default:
-			printf( "%s: Invalid or unsupported device type %d\n",
-				__FUNCTION__, desc->devtype );
+			printf("%s: Invalid or unsupported device type %d\n",
+			       __func__, desc->devtype);
 		}
 	}
 
 	return ret_val;
 }
 
-/* fpga_dump
+/*
+ * fpga_dump
  *	generic multiplexing code
  */
 int fpga_dump(int devnum, const void *buf, size_t bsize)
 {
 	int ret_val = FPGA_FAIL;           /* assume failure */
-	fpga_desc * desc = fpga_validate( devnum, buf, bsize, (char *)__FUNCTION__ );
+	const fpga_desc *desc = fpga_validate(devnum, buf, bsize,
+					      (char *)__func__);
 
-	if ( desc ) {
-		switch ( desc->devtype ) {
+	if (desc) {
+		switch (desc->devtype) {
 		case fpga_xilinx:
 #if defined(CONFIG_FPGA_XILINX)
-			ret_val = xilinx_dump( desc->devdesc, buf, bsize );
+			ret_val = xilinx_dump(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Xilinx devices" );
+			fpga_no_sup((char *)__func__, "Xilinx devices");
 #endif
 			break;
 		case fpga_altera:
 #if defined(CONFIG_FPGA_ALTERA)
-			ret_val = altera_dump( desc->devdesc, buf, bsize );
+			ret_val = altera_dump(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
+			fpga_no_sup((char *)__func__, "Altera devices");
 #endif
 			break;
 		case fpga_lattice:
 #if defined(CONFIG_FPGA_LATTICE)
 			ret_val = lattice_dump(desc->devdesc, buf, bsize);
 #else
-			fpga_no_sup( (char *)__FUNCTION__, "Lattice devices" );
+			fpga_no_sup((char *)__func__, "Lattice devices");
 #endif
 			break;
 		default:
-			printf( "%s: Invalid or unsupported device type %d\n",
-				__FUNCTION__, desc->devtype );
+			printf("%s: Invalid or unsupported device type %d\n",
+			       __func__, desc->devtype);
 		}
 	}
 
 	return ret_val;
 }
 
-
-/* fpga_info
+/*
+ * fpga_info
  *	front end to fpga_dev_info.  If devnum is invalid, report on all
  *	available devices.
  */
-int fpga_info( int devnum )
+int fpga_info(int devnum)
 {
-	if ( devnum == FPGA_INVALID_DEVICE ) {
-		if ( next_desc > 0 ) {
+	if (devnum == FPGA_INVALID_DEVICE) {
+		if (next_desc > 0) {
 			int dev;
 
-			for ( dev = 0; dev < next_desc; dev++ ) {
-				fpga_dev_info( dev );
-			}
+			for (dev = 0; dev < next_desc; dev++)
+				fpga_dev_info(dev);
+
 			return FPGA_SUCCESS;
 		} else {
-			printf( "%s: No FPGA devices available.\n", __FUNCTION__ );
+			printf("%s: No FPGA devices available.\n", __func__);
 			return FPGA_FAIL;
 		}
 	}
-	else return fpga_dev_info( devnum );
-}
 
-/* ------------------------------------------------------------------------- */
+	return fpga_dev_info(devnum);
+}