unroll F macro and restore print const __FlashStringHelper *

[jacobrosenthal]

Make F and other Flash based functions work. Please test with the below. Note the inclusionion of Teensy's avr/pgmspace.h definitions. I dont know if you want to include them yourself or maintain that as an external include.

#include "application.h"


//Teensy's /avr/pgmspace
#include <inttypes.h>

#define PROGMEM
#define PGM_P  const char *
#define PSTR(str) (str)

typedef void prog_void;
typedef char prog_char;
typedef unsigned char prog_uchar;
typedef int8_t prog_int8_t;
typedef uint8_t prog_uint8_t;
typedef int16_t prog_int16_t;
typedef uint16_t prog_uint16_t;
typedef int32_t prog_int32_t;
typedef uint32_t prog_uint32_t;

#define strcpy_P(dest, src) strcpy((dest), (src))
#define strcat_P(dest, src) strcat((dest), (src))
#define strcmp_P(a, b) strcmp((a), (b))

#define pgm_read_byte(addr) (*(const unsigned char *)(addr))
#define pgm_read_word(addr) (*(const unsigned short *)(addr))
#define pgm_read_dword(addr) (*(const unsigned long *)(addr))
#define pgm_read_float(addr) (*(const float *)(addr))

#define pgm_read_byte_near(addr) pgm_read_byte(addr)
#define pgm_read_word_near(addr) pgm_read_word(addr)
#define pgm_read_dword_near(addr) pgm_read_dword(addr)
#define pgm_read_float_near(addr) pgm_read_float(addr)
#define pgm_read_byte_far(addr) pgm_read_byte(addr)
#define pgm_read_word_far(addr) pgm_read_word(addr)
#define pgm_read_dword_far(addr) pgm_read_dword(addr)
#define pgm_read_float_far(addr) pgm_read_float(addr)


const char TEST1[] PROGMEM = { "hello world" } ;

//wifi client->print has a buffer that so far we've been unable to locate
//under 154 (our identify size) for sure.. so sending char by char for now
void printlnF(PGM_P data) 
{
  char buffer[20];
  strcpy_P(buffer, data);
  Serial.println(buffer);
}

/* This function is called once at start up ----------------------------------*/
void setup()
{
  Serial.begin(9600);
  delay(5000);
  Serial.println((F("Hello World")));
  printlnF(TEST1);
}

/* This function loops forever --------------------------------------------*/
void loop()
{
    //This will run in a loop
}

[pkourany]

I could not compile this example without errors.

[jacobrosenthal]

Boy, Id like to see those errors :) Works for me still.

[pkourany]

Compiled with spark CLI. Here are the errors:

attempting to compile firmware
pushing file: application.cpp
Errors
In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from application.cpp:1:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning: #warning "Defaulting to Release Build" [-Wcpp]
application.cpp: In function 'void setup()':
application.cpp:56:36: error: call of overloaded 'println(const _FlashStringHelper)' is ambiguous
application.cpp:56:36: note: candidates are:
In file included from ../inc/spark_wiring_stream.h:38:0,
from ../inc/spark_wiring.h:35,
from ../inc/application.h:31,
from application.cpp:1:
../inc/spark_wiring_print.h:79:12: note: size_t Print::println(char)
../inc/spark_wiring_print.h:79:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'char'
../inc/spark_wiring_print.h:80:12: note: size_t Print::println(unsigned char, int)
../inc/spark_wiring_print.h:80:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'unsigned char'
../inc/spark_wiring_print.h:81:12: note: size_t Print::println(int, int)
../inc/spark_wiring_print.h:81:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'int'
../inc/spark_wiring_print.h:82:12: note: size_t Print::println(unsigned int, int)
../inc/spark_wiring_print.h:82:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'unsigned int'
../inc/spark_wiring_print.h:83:12: note: size_t Print::println(long int, int)
../inc/spark_wiring_print.h:83:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'long int'
../inc/spark_wiring_print.h:84:12: note: size_t Print::println(long unsigned int, int)
../inc/spark_wiring_print.h:84:12: note: no known conversion for argument 1 from 'const _FlashStringHelper' to 'long unsigned int'
make: *_* [application.o] Error 1

[jacobrosenthal]

Of course! The cli code is weeks old and what this pull request is
attempting to fix. :)

To test you would need to follow the directions here
https://github.com/spark/core-firmware

to get a local copy to compile from, Then merge my pull request
feature/pgm-fixes which explicitly fixes the errors you've found :)

On Wed, Apr 30, 2014 at 8:56 PM, Paul Kourany notifications@github.comwrote:

Compiled with spark CLI. Here are the errors:

attempting to compile firmware
pushing file: application.cpp
Errors
In file included from ../inc/spark_wiring.h:30:0,
from ../inc/application.h:31,
from application.cpp:1:
../../core-common-lib/SPARK_Firmware_Driver/inc/config.h:12:2: warning:
#warning "Defaulting to Release Build" [-Wcpp]
application.cpp: In function 'void setup()':
application.cpp:56:36: error: call of overloaded 'println(const
_FlashStringHelper)' is ambiguous
application.cpp:56:36: note: candidates are:
In file included from ../inc/spark_wiring_stream.h:38:0,
from ../inc/spark_wiring.h:35,
from ../inc/application.h:31,
from application.cpp:1:
../inc/spark_wiring_print.h:79:12: note: size_t Print::println(char)
../inc/spark_wiring_print.h:79:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'char'
../inc/spark_wiring_print.h:80:12: note: size_t Print::println(unsigned
char, int)
../inc/spark_wiring_print.h:80:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'unsigned char'
../inc/spark_wiring_print.h:81:12: note: size_t Print::println(int, int)
../inc/spark_wiring_print.h:81:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'int'
../inc/spark_wiring_print.h:82:12: note: size_t Print::println(unsigned
int, int)
../inc/spark_wiring_print.h:82:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'unsigned int'
../inc/spark_wiring_print.h:83:12: note: size_t Print::println(long int,
int)
../inc/spark_wiring_print.h:83:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'long int'
../inc/spark_wiring_print.h:84:12: note: size_t Print::println(long
unsigned int, int)
../inc/spark_wiring_print.h:84:12: note: no known conversion for argument
1 from 'const _FlashStringHelper' to 'long unsigned int'
make: *_* [application.o] Error 1

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[pkourany]

DOH, if I had only read the actual pull changes then I would have understood! I gotta stop doing stuff at one in the morning! :)

[jacobrosenthal]

Eagerly awaiting this. Let me know if theres something else I need to do

[towynlin]

Thanks for the ping Jacob. We're planning the sprint today. I hope to review this tomorrow. Oh! Hey, you haven't signed our CLA; I can't merge until you do that: https://docs.google.com/a/spark.io/forms/d/1_2P-vRKGUFg5bmpcKLHO_qNZWGi5HKYnfrrkd-sbZoA/viewform