Am 20.08.2016 um 22:49 schrieb Henrik Östman:
> I compiled Owfs with this patch and tried owread two times again, and
> with the same result. I included the logfiles, I hope there is some new
> clues inside that reveals the problem.
> Can I verify somehow that the patch has been applied correctly?
>
It has. The patch tool complains if it doesn't.
I found some short-circuit in my thoughts when orginally implementing
that feature. Please remove the previous patch (just re-run patch with
the -R option and the old diff file), then apply the attached new patch.
It should work as expected then.
Kind regards
Jan
diff --git a/module/owlib/src/c/ow_1820.c b/module/owlib/src/c/ow_1820.c
index 452f4f8..045c047 100644
--- a/module/owlib/src/c/ow_1820.c
+++ b/module/owlib/src/c/ow_1820.c
@@ -79,11 +79,11 @@ static enum e_visibility VISIBLE_DS1825( const struct parsedname * pn ) ;
static enum e_visibility VISIBLE_MAX31826( const struct parsedname * pn ) ;
static enum e_visibility VISIBLE_MAX31850( const struct parsedname * pn ) ;
-enum threeB {
- Unknown_3B,
- DS1825_3B,
- MAX31826_3B,
- MAX31850_3B,
+enum threeB {
+ Unknown_3B,
+ DS1825_3B,
+ MAX31826_3B,
+ MAX31850_3B,
} ;
#define SCRATCHPAD_LENGTH 9
@@ -327,7 +327,7 @@ static GOOD_OR_BAD OW_w_page( BYTE * data, size_t size, off_t offset, struct par
static enum threeB VISIBLE_3B( const struct parsedname * pn )
{
enum threeB e3B = Unknown_3B ;
-
+
LEVEL_DEBUG("Checking visibility of %s",SAFESTRING(pn->path)) ;
if ( BAD( GetVisibilityCache( (int *) &e3B, pn ) ) ) {
struct one_wire_query * owq = OWQ_create_from_path(pn->path) ; // for read
@@ -352,7 +352,7 @@ static enum threeB VISIBLE_3B( const struct parsedname * pn )
#define VISIBLE_FN( id ) static enum e_visibility VISIBLE_##id(const struct parsedname * pn ) {\
return ( VISIBLE_3B(pn)==id##_3B ) ? visible_now : visible_not_now ; }
-
+
VISIBLE_FN( DS1825 ) ;
VISIBLE_FN( MAX31826 ) ;
VISIBLE_FN( MAX31850 ) ;
@@ -360,7 +360,7 @@ VISIBLE_FN( MAX31850 ) ;
static ZERO_OR_ERROR FS_10temp(struct one_wire_query *owq)
{
struct parsedname * pn = PN(owq) ;
-
+
// triple try temperatures
// first pass include simultaneous
if ( GOOD( OW_10temp(&OWQ_F(owq), deny_85C, OWQ_SIMUL_TEST(owq), pn)) ) {
@@ -490,7 +490,7 @@ static ZERO_OR_ERROR FS_r_ad(struct one_wire_query *owq)
{
size_t scr_leng = SCRATCHPAD_LENGTH ;
BYTE data[scr_leng];
-
+
RETURN_ERROR_IF_BAD(FS_r_sibling_binary( data, &scr_leng, "scratchpad", owq )) ;
OWQ_U(owq) = data[4] & 0x0F;
return 0;
@@ -501,7 +501,7 @@ static ZERO_OR_ERROR FS_r_flagfield(struct one_wire_query *owq)
{
size_t scr_leng = SCRATCHPAD_LENGTH ;
BYTE data[scr_leng];
-
+
RETURN_ERROR_IF_BAD(FS_r_sibling_binary( data, &scr_leng, "scratchpad", owq )) ;
OWQ_U(owq) = UT_uint32( data ) ;
return 0;
@@ -554,7 +554,7 @@ static ZERO_OR_ERROR FS_r_die(struct one_wire_query *owq)
static ZERO_OR_ERROR FS_r_scratchpad(struct one_wire_query *owq)
{
BYTE s[SCRATCHPAD_LENGTH] ;
-
+
if ( BAD(OW_r_scratchpad( s, PN(owq) ) ) ) {
return -EINVAL ;
}
@@ -674,7 +674,7 @@ static GOOD_OR_BAD OW_power(BYTE * data, const struct parsedname *pn)
TRXN_READ1(data),
TRXN_END,
};
-
+
RETURN_BAD_IF_BAD(BUS_transaction(tpower, pn)) ;
//LEVEL_DEBUG("TEST cannot read power");
Cache_Add_SlaveSpecific(data, sizeof(BYTE), SlaveSpecificTag(POW), pn);
@@ -784,7 +784,7 @@ static GOOD_OR_BAD OW_test_resolution( int * resolution_changed, struct tempreso
Cache_Add_SlaveSpecific(&(Resolution->bits), sizeof(stored_resolution), SlaveSpecificTag(RES), pn);
}
- return gbGOOD;
+ return gbGOOD;
}
/* returns when temperature is ready for reading
@@ -828,7 +828,7 @@ static GOOD_OR_BAD OW_temperature_ready( enum temperature_problem_flag accept_85
// must be desperate
LEVEL_DEBUG("Unpowered temperature conversion -- %d msec", longdelay);
// If not powered, no Simultaneous for this chip
- RETURN_BAD_IF_BAD(BUS_transaction(tunpowered_long, pn)) ;
+ RETURN_BAD_IF_BAD(BUS_transaction(tunpowered_long, pn)) ;
} else if (!pow) { // unpowered, deliver power, no communication allowed
LEVEL_DEBUG("Unpowered temperature conversion -- %d msec", delay);
// If not powered, no Simultaneous for this chip
@@ -895,11 +895,24 @@ static GOOD_OR_BAD OW_22latesttemp(_FLOAT * temp, enum temperature_problem_flag
{
BYTE data[SCRATCHPAD_LENGTH];
struct tempresolution *Resolution ;
-
- RETURN_BAD_IF_BAD( OW_set_resolution( &Resolution, pn ) ) ;
RETURN_BAD_IF_BAD( OW_r_scratchpad(data, pn) ) ;
+ switch ((data[4]>>5) & 0x03) {
+ case 0:
+ Resolution[0] = &Resolution9 ;
+ break ;
+ case 1:
+ Resolution[0] = &Resolution10 ;
+ break ;
+ case 2:
+ Resolution[0] = &Resolution11 ;
+ break ;
+ case 3:
+ Resolution[0] = &Resolution12 ;
+ break ;
+ }
+
temp[0] = OW_masked_temperature( data, Resolution ) ;
if ( accept_85C==allow_85C || data[0] != 0x50 || data[1] != 0x05 ) {
@@ -911,8 +924,8 @@ static GOOD_OR_BAD OW_22latesttemp(_FLOAT * temp, enum temperature_problem_flag
static GOOD_OR_BAD OW_22temp(_FLOAT * temp, enum temperature_problem_flag accept_85C, int simul_good, const struct parsedname *pn)
{
struct tempresolution *Resolution ;
-
- RETURN_BAD_IF_BAD( OW_set_resolution( &Resolution, pn ) ) ;
+
+ RETURN_BAD_IF_BAD( OW_set_resolution( &Resolution, pn ) ) ;
RETURN_BAD_IF_BAD( OW_temperature_ready( accept_85C, simul_good, Resolution, pn ) ) ;
@@ -1046,7 +1059,7 @@ static GOOD_OR_BAD OW_r_trim(BYTE * trim, const struct parsedname *pn)
TRXN_READ1(&trim[1]),
TRXN_END,
};
-
+
RETURN_BAD_IF_BAD(BUS_transaction(t0, pn)) ;
return BUS_transaction(t1, pn);
}
@@ -1186,7 +1199,7 @@ static GOOD_OR_BAD OW_r_mem(BYTE * data, size_t size, off_t offset, struct parse
TRXN_READ(data,size),
TRXN_END,
};
-
+
return BUS_transaction(t, pn) ;
}
@@ -1199,11 +1212,11 @@ static GOOD_OR_BAD OW_w_mem( BYTE * data, size_t size, off_t offset, struct pars
size_t left_to_write = size ;
off_t current_off = offset ;
off_t page_boundary_next = offset + pagesize - (offset % pagesize ) ;
-
+
// loop through pages
while ( left_to_write > 0 ) {
off_t this_write = left_to_write ;
-
+
// trim length of write to fit in page
if ( current_off + this_write > page_boundary_next ) {
this_write = page_boundary_next - current_off ;
@@ -1211,14 +1224,14 @@ static GOOD_OR_BAD OW_w_mem( BYTE * data, size_t size, off_t offset, struct pars
// write this page
RETURN_BAD_IF_BAD( OW_w_page( dataloc, this_write, current_off, pn ) ) ;
-
+
// update pointers and counters
dataloc += this_write ;
left_to_write -= this_write ;
current_off += this_write ;
page_boundary_next += pagesize ;
}
-
+
return gbGOOD ;
}
@@ -1276,9 +1289,9 @@ static GOOD_OR_BAD OW_w_page( BYTE * data, size_t size, off_t offset, struct par
p_read[0] = _1W_READ_SCRATCHPAD2 ;
p_read[1] = page_offset ;
RETURN_BAD_IF_BAD( BUS_transaction( t_read, pn ) ) ;
-
+
// copy scratchpad 2 to eeprom
p_copy[0] = _1W_COPY_SCRATCHPAD2 ;
p_copy[1] = _1W_COPY_SCRATCHPAD2_DO ;
return BUS_transaction( t_copy, pn ) ;
-}
+}
------------------------------------------------------------------------------
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