/*====================================================================*
*
*   Copyright (c) 2013 Qualcomm Atheros, Inc.
*
*   All rights reserved.
*
*====================================================================*/

/*====================================================================*
 *
 *   psin.c - load prescalers into int6000 parameter file;
 *
 *   Contributor(s):
 *	Charles Maier <cmaier@qca.qualcomm.com>
 *      Nathaniel Houghton <nhoughto@qca.qualcomm.com>
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include <stdio.h>
#include <stdint.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>

/*====================================================================*
 *   custom header files;
 *--------------------------------------------------------------------*/

#include "../tools/endian.h"
#include "../tools/getoptv.h"
#include "../tools/number.h"
#include "../tools/chars.h"
#include "../tools/types.h"
#include "../tools/error.h"
#include "../tools/files.h"
#include "../key/HPAVKey.h"
#include "../pib/pib.h"
#include "../plc/plc.h"

/*====================================================================*
 *   custom source files;
 *--------------------------------------------------------------------*/

#ifndef MAKEFILE
#include "../tools/getoptv.c"
#include "../tools/putoptv.c"
#include "../tools/version.c"
#include "../tools/fdchecksum32.c"
#include "../tools/hexdecode.c"
#include "../tools/hexstring.c"
#include "../tools/todigit.c"
#include "../tools/error.c"
#endif

#ifndef MAKEFILE
#include "../pib/lightning_pib_file.c"
#include "../pib/lightning_pib_lock.c"
#include "../pib/pibscalers.c"
#endif

#ifndef MAKEFILE
#include "../key/keys.c"
#endif

/*====================================================================*
 *   
 *
 *   signed ar7x00_psin (struct _file_ * pib, uint32_t value, uint32_t index);
 *
 *   Places a single 10 bit prescaler into the pib file at index;
 *
 *--------------------------------------------------------------------*/

signed ar7x00_psin (struct _file_ * pib, uint32_t value, uint32_t index) 

{ 
	off_t offset = AMP_PRESCALER_OFFSET +  (index * 10 / 8); 
	uint8_t bit_offset = (index * 10) % 8; 
	uint16_t tmp; 
	if (lseek (pib->file, offset, SEEK_SET) != offset) 
	{ 
		return (- 1); 
	} 
	if (read (pib->file, & tmp, sizeof (tmp)) != sizeof (tmp)) 
	{ 
		return (- 1); 
	} 
	if (lseek (pib->file, offset, SEEK_SET) != offset) 
	{ 
		return (- 1); 
	} 
	value &= 0x03FF; 
	tmp = LE16TOH (tmp); 
	tmp &= ~ (0x03FF << bit_offset); 
	tmp |= value << bit_offset; 
	tmp = HTOLE16 (tmp); 
	if (write (pib->file, & tmp, sizeof (tmp)) != sizeof (tmp)) 
	{ 
		return (- 1); 
	} 
	return (0); 
} 

/*====================================================================*
 *
 *   signed psin (struct _file_ * pib);
 *
 *--------------------------------------------------------------------*/

static signed psin (struct _file_ * pib) 

{ 
	unsigned index = 0; 
	unsigned count = 0; 
	unsigned limit = pibscalers (pib); 
	uint32_t value = 0; 
	signed c; 
	if ((limit != INT_CARRIERS) && (limit != AMP_CARRIERS)) 
	{ 
		error (1, 0, "Don't understand this PIB's prescaler format"); 
	} 
	if (limit == INT_CARRIERS) 
	{ 
		if (lseek (pib->file, INT_PRESCALER_OFFSET, SEEK_SET) != INT_PRESCALER_OFFSET) 
		{ 
			error (1, errno, FILE_CANTSEEK, pib->name); 
		} 
	} 
	while ((c = getc (stdin)) != EOF) 
	{ 
		if (isspace (c)) 
		{ 
			continue; 
		} 
		if ((c == '#') || (c == ';')) 
		{ 
			do 
			{ 
				c = getc (stdin); 
			} 
			while (nobreak (c)); 
			continue; 
		} 
		index = 0; 
		while (isdigit (c)) 
		{ 
			index *= 10; 
			index += c - '0'; 
			c = getc (stdin); 
		} 
		if (index != count) 
		{ 
			error (1, ECANCELED, "Carrier %d out of order", index); 
		} 
		if (index >= limit) 
		{ 
			error (1, EOVERFLOW, "Too many prescalers"); 
		} 
		while (isblank (c)) 
		{ 
			c = getc (stdin); 
		} 
		value = 0; 
		while (isxdigit (c)) 
		{ 
			value *= 16; 
			value += todigit (c); 
			c = getc (stdin); 
		} 
		if (limit == INT_CARRIERS) 
		{ 
			value = HTOLE32 (value); 
			if (write (pib->file, & value, sizeof (value)) != sizeof (value)) 
			{ 
				error (1, errno, "Can't save %s", pib->name); 
			} 
		} 
		else if (limit == AMP_CARRIERS) 
		{ 
			if (value & ~ 0x03FF) 
			{ 
				error (1, errno, "Position %d has invalid prescaler value", index); 
			} 
			if (ar7x00_psin (pib, value, index)) 
			{ 
				error (1, errno, "Can't update %s", pib->name); 
			} 
		} 
		while (nobreak (c)) 
		{ 
			c = getc (stdin); 
		}; 
		count++; 
	} 
	return (0); 
} 

/*====================================================================*
 *   
 *   int main (int argc, char const * argv []) 
 *   
 *
 *--------------------------------------------------------------------*/

int main (int argc, char const * argv []) 

{ 
	static char const * optv [] = 
	{ 
		"", 
		"pibfile [< scalers]", 
		"load prescalers into int6000 parameter file", 
		(char const *) (0)
	}; 
	struct _file_ pib; 
	signed c; 
	optind = 1; 
	while (~ (c = getoptv (argc, argv, optv))) 
	{ 
		switch ((char) (c)) 
		{ 
		default: 
			break; 
		} 
	} 
	argc -= optind; 
	argv += optind; 
	if (argc > 1) 
	{ 
		error (1, ECANCELED, "Only one target file allowed"); 
	} 
	if ((argc) && (* argv)) 
	{ 
		pib.name = * argv; 
		if ((pib.file = open (pib.name, O_BINARY | O_RDWR)) == - 1) 
		{ 
			error (1, errno, "Can't open %s", pib.name); 
		} 
		else if (lightning_pib_file (& pib)) 
		{ 
			error (1, errno, "Bad PIB file: %s", pib.name); 
		} 
		else if (psin (& pib)) 
		{ 
			error (1, ECANCELED, "%s", pib.name); 
		} 
		else if (lightning_pib_lock (& pib)) 
		{ 
			error (1, ECANCELED, "%s", pib.name); 
		} 
		close (pib.file); 
	} 
	return (0); 
}