//-----------------------------------------------------------------------------
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
//
// This code is licensed to you under the terms of the GNU GPL, version 2 or,
// at your option, any later version. See the LICENSE.txt file for the text of
// the license.
//-----------------------------------------------------------------------------
// Hardware commands
//-----------------------------------------------------------------------------

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include "ui.h"
#include "proxmark3.h"
#include "cmdparser.h"
#include "cmdhw.h"
#include "cmdmain.h"
#include "cmddata.h"
#include "data.h"

/* low-level hardware control */

static int CmdHelp(const char *Cmd);

static void lookupChipID(uint32_t iChipID, uint32_t mem_used)
{
	char asBuff[120];
	memset(asBuff, 0, sizeof(asBuff));
	uint32_t mem_avail = 0;
	
	switch(iChipID) {
		case 0x270B0A40: sprintf(asBuff,"AT91SAM7S512 Rev A"); break;
		case 0x270B0A4F: sprintf(asBuff,"AT91SAM7S512 Rev B"); break;
		case 0x270D0940: sprintf(asBuff,"AT91SAM7S256 Rev A"); break;
		case 0x270B0941: sprintf(asBuff,"AT91SAM7S256 Rev B"); break;
		case 0x270B0942: sprintf(asBuff,"AT91SAM7S256 Rev C"); break;
		case 0x270B0943: sprintf(asBuff,"AT91SAM7S256 Rev D"); break;
		case 0x270C0740: sprintf(asBuff,"AT91SAM7S128 Rev A"); break;
		case 0x270A0741: sprintf(asBuff,"AT91SAM7S128 Rev B"); break;
		case 0x270A0742: sprintf(asBuff,"AT91SAM7S128 Rev C"); break;
		case 0x270A0743: sprintf(asBuff,"AT91SAM7S128 Rev D"); break;
		case 0x27090540: sprintf(asBuff,"AT91SAM7S64 Rev A"); break;
		case 0x27090543: sprintf(asBuff,"AT91SAM7S64 Rev B"); break;
		case 0x27090544: sprintf(asBuff,"AT91SAM7S64 Rev C"); break;
		case 0x27080342: sprintf(asBuff,"AT91SAM7S321 Rev A"); break;
		case 0x27080340: sprintf(asBuff,"AT91SAM7S32 Rev A"); break;
		case 0x27080341: sprintf(asBuff,"AT91SAM7S32 Rev B"); break;
		case 0x27050241: sprintf(asBuff,"AT9SAM7S161 Rev A"); break;
		case 0x27050240: sprintf(asBuff,"AT91SAM7S16 Rev A"); break;
	}
	PrintAndLog("uC: %s",asBuff);
	switch( (iChipID & 0xE0) >> 5) {
		case 1: sprintf(asBuff,"ARM946ES");	break;
		case 2:	sprintf(asBuff,"ARM7TDMI");	break;
		case 4:	sprintf(asBuff,"ARM920T"); break;
		case 5:	sprintf(asBuff,"ARM926EJS"); break;
	}
	PrintAndLog("Embedded Processor: %s",asBuff);
	switch( (iChipID & 0xF00) >> 8) {
		case 0:  mem_avail = 0; break;
		case 1:	 mem_avail = 8; break;
		case 2:  mem_avail = 16; break;
		case 3:  mem_avail = 32; break;
		case 5:	 mem_avail = 64; break;
		case 7:	 mem_avail = 128; break;
		case 9:  mem_avail = 256; break;
		case 10: mem_avail = 512; break;
		case 12: mem_avail = 1024; break;
		case 14: mem_avail = 2048; break;
	}
	
	uint32_t mem_left = 0;
	if ( mem_avail > 0 ) 
		mem_left = (mem_avail * 1024) - mem_used;
	
	PrintAndLog("Nonvolatile Program Memory Size: %uK bytes. Used: %u bytes (%2.0f\%). Free: %u bytes (%2.0f\%).", 
				mem_avail, 
				mem_used, 
				mem_avail == 0 ? 0.0f : (float)mem_used/(mem_avail*1024)*100,
				mem_left,
				mem_avail == 0 ? 0.0f : (float)mem_left/(mem_avail*1024)*100
			);
				
	switch( (iChipID & 0xF000) >> 12 ) {
		case 0:	 sprintf(asBuff,"None"); break;
		case 1:	 sprintf(asBuff,"8K bytes"); break;
		case 2:	 sprintf(asBuff,"16K bytes"); break;
		case 3:	 sprintf(asBuff,"32K bytes"); break;
		case 5:  sprintf(asBuff,"64K bytes"); break;
		case 7:  sprintf(asBuff,"128K bytes"); break;
		case 9:  sprintf(asBuff,"256K bytes"); break;
		case 10: sprintf(asBuff,"512K bytes"); break;
		case 12: sprintf(asBuff,"1024K bytes");	break;
		case 14: sprintf(asBuff,"2048K bytes"); break;
	}
	PrintAndLog("Second Nonvolatile Program Memory Size: %s",asBuff);
	switch( (iChipID & 0xF0000) >> 16) {
		case 1:  sprintf(asBuff,"1K bytes"); break;
		case 2:  sprintf(asBuff,"2K bytes"); break;
		case 3:	 sprintf(asBuff,"6K bytes"); break;
		case 4:	 sprintf(asBuff,"112K bytes"); break;
		case 5:	 sprintf(asBuff,"4K bytes"); break;
		case 6:	 sprintf(asBuff,"80K bytes"); break;
		case 7:  sprintf(asBuff,"160K bytes"); break;
		case 8:	 sprintf(asBuff,"8K bytes"); break;
		case 9:  sprintf(asBuff,"16K bytes"); break;
		case 10: sprintf(asBuff,"32K bytes"); break;
		case 11: sprintf(asBuff,"64K bytes"); break;
		case 12: sprintf(asBuff,"128K bytes"); break;
		case 13: sprintf(asBuff,"256K bytes"); break;
		case 14: sprintf(asBuff,"96K bytes"); break;
		case 15: sprintf(asBuff,"512K bytes");break;
	}
	PrintAndLog("Internal SRAM Size: %s",asBuff);
	switch( (iChipID & 0xFF00000) >> 20) {
		case 0x19: sprintf(asBuff,"AT91SAM9xx Series"); break;
		case 0x29: sprintf(asBuff,"AT91SAM9XExx Series"); break;
		case 0x34: sprintf(asBuff,"AT91x34 Series"); break;
		case 0x37: sprintf(asBuff,"CAP7 Series"); break;
		case 0x39: sprintf(asBuff,"CAP9 Series"); break;
		case 0x3B: sprintf(asBuff,"CAP11 Series"); break;
		case 0x40: sprintf(asBuff,"AT91x40 Series"); break;
		case 0x42: sprintf(asBuff,"AT91x42 Series"); break;
		case 0x55: sprintf(asBuff,"AT91x55 Series"); break;
		case 0x60: sprintf(asBuff,"AT91SAM7Axx Series"); break;
		case 0x61: sprintf(asBuff,"AT91SAM7AQxx Series"); break;
		case 0x63: sprintf(asBuff,"AT91x63 Series"); break;
		case 0x70: sprintf(asBuff,"AT91SAM7Sxx Series"); break;
		case 0x71: sprintf(asBuff,"AT91SAM7XCxx Series"); break;
		case 0x72: sprintf(asBuff,"AT91SAM7SExx Series"); break;
		case 0x73: sprintf(asBuff,"AT91SAM7Lxx Series"); break;
		case 0x75: sprintf(asBuff,"AT91SAM7Xxx Series"); break;
		case 0x92: sprintf(asBuff,"AT91x92 Series"); break;
		case 0xF0: sprintf(asBuff,"AT75Cxx Series"); break;
	}
	PrintAndLog("Architecture Identifier: %s",asBuff);
	switch( (iChipID & 0x70000000) >> 28 ) {
		case 0: sprintf(asBuff,"ROM"); break;
		case 1: sprintf(asBuff,"ROMless or on-chip Flash");	break;
		case 2:	sprintf(asBuff,"Embedded Flash Memory"); break;
		case 3:	sprintf(asBuff,"ROM and Embedded Flash Memory\nNVPSIZ is ROM size\nNVPSIZ2 is Flash size");	break;
		case 4:	sprintf(asBuff,"SRAM emulating ROM"); break;		
	}
	PrintAndLog("Nonvolatile Program Memory Type: %s",asBuff);
}

int CmdDetectReader(const char *Cmd)
{
	UsbCommand c = {CMD_LISTEN_READER_FIELD};
	// 'l' means LF - 125/134 kHz
	if(*Cmd == 'l') {
		c.arg[0] = 1;
	} else if (*Cmd == 'h') {
		c.arg[0] = 2;
	} else if (*Cmd != '\0') {
		PrintAndLog("use 'detectreader' or 'detectreader l' or 'detectreader h'");
		return 0;
	}
	clearCommandBuffer();	
	SendCommand(&c);
	return 0;
}

// ## FPGA Control
int CmdFPGAOff(const char *Cmd)
{
	UsbCommand c = {CMD_FPGA_MAJOR_MODE_OFF};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdLCD(const char *Cmd)
{
	int i, j;

	UsbCommand c = {CMD_LCD};
	sscanf(Cmd, "%x %d", &i, &j);
	while (j--) {
		c.arg[0] = i & 0x1ff;
		clearCommandBuffer();
		SendCommand(&c);
	}
	return 0;
}

int CmdLCDReset(const char *Cmd)
{
	UsbCommand c = {CMD_LCD_RESET, {strtol(Cmd, NULL, 0), 0, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdReadmem(const char *Cmd)
{
	UsbCommand c = {CMD_READ_MEM, {strtol(Cmd, NULL, 0), 0, 0}};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdReset(const char *Cmd)
{
	UsbCommand c = {CMD_HARDWARE_RESET};
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

/*
 * Sets the divisor for LF frequency clock: lets the user choose any LF frequency below
 * 600kHz.
 */
int CmdSetDivisor(const char *Cmd)
{
	UsbCommand c = {CMD_SET_LF_DIVISOR, {strtol(Cmd, NULL, 0), 0, 0}};
	
	if (c.arg[0] < 19 || c.arg[0] > 255) {
		PrintAndLog("divisor must be between 19 and 255");
		return 1;
	} 
	// 12 000 000 (12Mhz)
	// 
	clearCommandBuffer();
	SendCommand(&c);
	PrintAndLog("Divisor set, expected %.1f KHz", ((double)12000 / (c.arg[0]+1)) );
	return 0;
}

int CmdSetMux(const char *Cmd)
{
	UsbCommand c = {CMD_SET_ADC_MUX};
	if (strcmp(Cmd, "lopkd") == 0) 		c.arg[0] = 0;
	else if (strcmp(Cmd, "loraw") == 0)	c.arg[0] = 1;
	else if (strcmp(Cmd, "hipkd") == 0)	c.arg[0] = 2;
	else if (strcmp(Cmd, "hiraw") == 0)	c.arg[0] = 3;
	clearCommandBuffer();
	SendCommand(&c);
	return 0;
}

int CmdTune(const char *Cmd)
{
    return CmdTuneSamples(Cmd);
}

int CmdVersion(const char *Cmd)
{
	clearCommandBuffer();
	UsbCommand c = {CMD_VERSION};
	static UsbCommand resp = {0, {0, 0, 0}};

	if (resp.arg[0] == 0 && resp.arg[1] == 0) { // no cached information available
		SendCommand(&c);
		if (WaitForResponseTimeout(CMD_ACK, &resp, 1000)) {
			PrintAndLog("Proxmark3 RFID instrument");
			PrintAndLog((char*)resp.d.asBytes);
			lookupChipID(resp.arg[0], resp.arg[1]);
		}
	} else {
		PrintAndLog("[[[ Cached information ]]]\n");
		PrintAndLog("Proxmark3 RFID instrument");
		PrintAndLog((char*)resp.d.asBytes);
		lookupChipID(resp.arg[0], resp.arg[1]);
		PrintAndLog("");
	}
	return 0;
}

int CmdStatus(const char *Cmd)
{
	uint8_t speed_test_buffer[USB_CMD_DATA_SIZE];
	sample_buf = speed_test_buffer;
	clearCommandBuffer();
	UsbCommand c = {CMD_STATUS};
	SendCommand(&c);
	if (!WaitForResponseTimeout(CMD_ACK, &c, 1900))
		PrintAndLog("Status command failed. USB Speed Test timed out");
	return 0;
}

int CmdPing(const char *Cmd)
{
	clearCommandBuffer();
	UsbCommand resp;
	UsbCommand c = {CMD_PING};
	SendCommand(&c);
	if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
		PrintAndLog("Ping successfull");
	else
		PrintAndLog("Ping failed");	
	return 0;
}

static command_t CommandTable[] = 
{
	{"help",          CmdHelp,        1, "This help"},
	{"detectreader",  CmdDetectReader,0, "['l'|'h'] -- Detect external reader field (option 'l' or 'h' to limit to LF or HF)"},
	{"fpgaoff",       CmdFPGAOff,     0, "Set FPGA off"},
	{"lcd",           CmdLCD,         0, "<HEX command> <count> -- Send command/data to LCD"},
	{"lcdreset",      CmdLCDReset,    0, "Hardware reset LCD"},
	{"readmem",       CmdReadmem,     0, "[address] -- Read memory at decimal address from flash"},
	{"reset",         CmdReset,       0, "Reset the Proxmark3"},
	{"setlfdivisor",  CmdSetDivisor,  0, "<19 - 255> -- Drive LF antenna at 12Mhz/(divisor+1)"},
	{"setmux",        CmdSetMux,      0, "<loraw|hiraw|lopkd|hipkd> -- Set the ADC mux to a specific value"},
	{"tune",          CmdTune,        0, "Measure antenna tuning"},
	{"version",       CmdVersion,     0, "Show version information about the connected Proxmark"},
	{"status",        CmdStatus,      0, "Show runtime status information about the connected Proxmark"},
	{"ping",          CmdPing,        0, "Test if the pm3 is responsive"},
	{NULL, NULL, 0, NULL}
};

int CmdHW(const char *Cmd) {
	clearCommandBuffer();
	CmdsParse(CommandTable, Cmd);
	return 0;
}

int CmdHelp(const char *Cmd)
{
	CmdsHelp(CommandTable);
	return 0;
}