/* PAged access -- pre-screened */
static GOOD_OR_BAD OW_w_mem(BYTE * data, size_t size, off_t offset, struct parsedname *pn)
{
BYTE p[4 + 32] = { _1W_WRITE_SCRATCHPAD, LOW_HIGH_ADDRESS(offset), };
struct transaction_log tcopy[] = {
TRXN_START,
TRXN_WRITE3(p),
TRXN_WRITE(data, size),
TRXN_END,
};
struct transaction_log tread[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_READ(&p[1], 3 + size),
TRXN_COMPARE(data, &p[4], size),
TRXN_END,
};
struct transaction_log tsram[] = {
TRXN_START,
TRXN_WRITE(p, 4),
TRXN_DELAY(32),
TRXN_END,
};
/* Copy to scratchpad */
RETURN_BAD_IF_BAD(BUS_transaction(tcopy, pn)) ;
/* Re-read scratchpad and compare */
p[0] = _1W_READ_SCRATCHPAD;
RETURN_BAD_IF_BAD(BUS_transaction(tread, pn)) ;
/* Copy Scratchpad to SRAM */
p[0] = _1W_COPY_SCRATCHPAD;
return BUS_transaction(tsram, pn) ;
}
static GOOD_OR_BAD OW_temp(_FLOAT * T, const struct parsedname *pn)
{
BYTE d2[] = { _1W_CONVERT_T, };
BYTE b2[] = { _1W_READ_REGISTERS, _ADDRESS_TEMPERATURE, };
BYTE t[2];
struct transaction_log tconvert[] = {
TRXN_START,
TRXN_WRITE1(d2),
TRXN_DELAY(10),
TRXN_END,
};
struct transaction_log tdata[] = {
TRXN_START,
TRXN_WRITE2(b2),
TRXN_READ3(t),
TRXN_END,
};
// initiate conversion
RETURN_BAD_IF_BAD(BUS_transaction(tconvert, pn)) ;
/* Get data */
RETURN_BAD_IF_BAD(BUS_transaction(tdata, pn)) ;
// success
//printf("Temp bytes %0.2X %0.2X\n",t[0],t[1]);
//printf("temp int=%d\n",((int)((int8_t)t[1])));
//T[0] = ((int)((int8_t)t[1])) + .00390625*t[0] ;
T[0] = UT_int16(t) / 256.;
return gbGOOD;
}
/* only called for a single page, and that page is 0,1,2 only*/
static GOOD_OR_BAD OW_w_page(const BYTE * data, size_t size, off_t offset, const struct parsedname *pn)
{
int page = offset / _1W_2436_PAGESIZE; // integer round-down ok
BYTE scratchin[] = { _1W_READ_SCRATCHPAD, offset, };
BYTE scratchout[] = { _1W_WRITE_SCRATCHPAD, offset, };
BYTE p[_1W_2436_PAGESIZE];
static BYTE copyout[] = { _1W_COPY_SP1_TO_NV1, _1W_COPY_SP2_TO_NV2, _1W_COPY_SP3_TO_NV3, };
BYTE *copy = ©out[page];
struct transaction_log twrite[] = {
TRXN_START,
TRXN_WRITE2(scratchout),
TRXN_WRITE(data, size),
TRXN_END,
};
struct transaction_log tread[] = {
TRXN_START,
TRXN_WRITE2(scratchin),
TRXN_READ(p, size),
TRXN_COMPARE(data, p, size),
TRXN_END,
};
struct transaction_log tcopy[] = {
TRXN_START,
TRXN_WRITE1(copy),
TRXN_DELAY(10),
TRXN_END,
};
RETURN_BAD_IF_BAD(BUS_transaction(twrite, pn)) ;
RETURN_BAD_IF_BAD(BUS_transaction(tread, pn)) ;
return BUS_transaction(tcopy, pn) ;
}
static GOOD_OR_BAD OW_volts(_FLOAT * V, const struct parsedname *pn)
{
BYTE b4[] = { _1W_CONVERT_V, };
BYTE b2[] = { _1W_READ_REGISTERS, _ADDRESS_VOLTAGE, };
BYTE v[2];
struct transaction_log tconvert[] = {
TRXN_START,
TRXN_WRITE1(b4),
TRXN_DELAY(10),
TRXN_END,
};
struct transaction_log tdata[] = {
TRXN_START,
TRXN_WRITE2(b2),
TRXN_READ2(v),
TRXN_END,
};
// initiate conversion
RETURN_BAD_IF_BAD(BUS_transaction(tconvert, pn)) ;
/* Get data */
RETURN_BAD_IF_BAD( BUS_transaction(tdata, pn)) ;
// success
//V[0] = .01 * (_FLOAT)( ( ((uint32_t)v[1]) <<8 )|v[0] ) ;
V[0] = .01 * (_FLOAT) (UT_uint16(v));
return gbGOOD;
}
/* write alarm settings */
static GOOD_OR_BAD OW_w_s_alarm(const BYTE * data, const struct parsedname *pn)
{
BYTE old_register[6];
BYTE new_register[6];
BYTE control_value[1];
BYTE alarm_access[] = { _1W_WRITE_CONDITIONAL_SEARCH_REGISTER,
LOW_HIGH_ADDRESS(_ADDRESS_ALARM_REGISTERS),
};
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE3(alarm_access),
TRXN_WRITE2(data),
TRXN_WRITE1(control_value),
TRXN_END,
};
// get the existing register contents
RETURN_BAD_IF_BAD( OW_r_reg(old_register, pn) ) ;
control_value[0] = (data[2] & 0x03) | (old_register[5] & 0x0C);
RETURN_BAD_IF_BAD(BUS_transaction(t, pn)) ;
/* Re-Read registers */
RETURN_BAD_IF_BAD(OW_r_reg(new_register, pn)) ;
return (data[0] != new_register[3]) || (data[1] != new_register[4])
|| (control_value[0] != (new_register[5] & 0x0F)) ? gbBAD : gbGOOD;
}
static GOOD_OR_BAD OW_simple_command(BYTE lcd_command_code, const struct parsedname *pn)
{
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(&lcd_command_code),
TRXN_END,
};
return BUS_transaction(t, pn);
}
static GOOD_OR_BAD OW_reset( const struct parsedname *pn)
{
BYTE p[] = { _1W_RESET_CYCLE_COUNTER, } ;
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_END,
};
return BUS_transaction( t, pn ) ;
}
static GOOD_OR_BAD LCD_byte(BYTE b, int delay, const struct parsedname *pn)
{
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(&b),
TRXN_DELAY(delay),
TRXN_END,
};
return BUS_transaction(t, pn);
}
static GOOD_OR_BAD OW_increment( const struct parsedname *pn)
{
BYTE p[] = { _1W_INCREMENT_CYCLE, } ;
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_DELAY(10),
TRXN_END,
};
return BUS_transaction( t, pn ) ;
}
static GOOD_OR_BAD OW_nv1_unlock( const struct parsedname *pn)
{
BYTE p[] = { _1W_UNLOCK_NV1, } ;
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_DELAY(5),
TRXN_END,
};
return BUS_transaction( t, pn ) ;
}
static GOOD_OR_BAD OW_r_scratch(BYTE * data, int length, const struct parsedname *pn)
{
BYTE read_command[1] = { _LCD_COMMAND_SCRATCHPAD_READ, };
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(read_command),
TRXN_READ(data, length),
TRXN_END,
};
return BUS_transaction(t, pn);
}
/* paged, and pre-screened */
static GOOD_OR_BAD OW_w_23page(BYTE * data, size_t size, off_t offset, struct parsedname *pn)
{
BYTE p[1 + 2 + 32 + 2] = { _1W_WRITE_SCRATCHPAD, LOW_HIGH_ADDRESS(offset), };
struct transaction_log tcopy[] = {
TRXN_START,
TRXN_WR_CRC16(p, 3 + size, 0),
TRXN_END,
};
struct transaction_log treread[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_READ(&p[1], 3 + size),
TRXN_COMPARE(&p[4], data, size),
TRXN_END,
};
struct transaction_log twrite33[] = {
TRXN_START,
TRXN_WRITE(p, 4),
TRXN_DELAY(5),
TRXN_END,
};
struct transaction_log twriteEC20[] = {
TRXN_START,
TRXN_WRITE(p, 4),
TRXN_DELAY(10),
TRXN_END,
};
/* Copy to scratchpad */
memcpy(&p[3], data, size);
if (((offset + size) & 0x1F)) { // doesn't end on page boundary, no crc16
tcopy[2].type = tcopy[3].type = trxn_nop;
}
RETURN_BAD_IF_BAD(BUS_transaction(tcopy, pn)) ;
/* Re-read scratchpad and compare */
/* Note that we tacitly shift the data one byte down for the E/S byte */
p[0] = _1W_READ_SCRATCHPAD;
RETURN_BAD_IF_BAD(BUS_transaction(treread, pn)) ;
/* Copy Scratchpad to SRAM */
p[0] = _1W_COPY_SCRATCHPAD;
switch (pn->sn[0]) {
case 0x23: // DS2433
return BUS_transaction(twrite33,pn);
case 0x43:
default: // DS28EC20
return BUS_transaction(twriteEC20,pn);
}
}
/* Send several bytes to the channel */
static GOOD_OR_BAD OW_w_pios(const BYTE * data, const size_t size, const struct parsedname *pn)
{
BYTE cmd[] = { _1W_CHANNEL_ACCESS_WRITE, };
size_t formatted_size = 4 * size;
BYTE formatted_data[formatted_size];
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(cmd),
TRXN_MODIFY(formatted_data, formatted_data, formatted_size),
TRXN_END,
};
size_t i;
// setup the array
// each byte takes 4 bytes after formatting
for (i = 0; i < size; ++i) {
int formatted_data_index = 4 * i;
formatted_data[formatted_data_index + 0] = data[i];
formatted_data[formatted_data_index + 1] = (BYTE) ~ data[i];
formatted_data[formatted_data_index + 2] = 0xFF;
formatted_data[formatted_data_index + 3] = 0xFF;
}
if ( BAD(BUS_transaction(t, pn)) ) {
// may be in test mode, which causes Channel Access Write to fail
// fix now, but need another attempt to see if will work
OW_out_of_test_mode(pn) ;
return gbBAD ;
}
for (i = 0; i < size; ++i) {
int formatted_data_index = 4 * i;
BYTE rdata = ((BYTE)~data[i]); // get rid of warning: comparison of promoted ~unsigned with unsigned
if (formatted_data[formatted_data_index + 0] != data[i]) {
return gbBAD;
}
if (formatted_data[formatted_data_index + 1] != rdata) {
return gbBAD;
}
if (formatted_data[formatted_data_index + 2] != 0xAA) {
return gbBAD;
}
if (formatted_data[formatted_data_index + 3] != data[i]) {
return gbBAD;
}
}
return gbGOOD;
}
/* write Wiper */
static GOOD_OR_BAD OW_w_wiper(const UINT val, const struct parsedname *pn)
{
BYTE resp[1];
BYTE cmd[] = { _1W_WRITE_POSITION, (BYTE) val, };
BYTE ns[] = { _1W_RELEASE_WIPER, };
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE2(cmd),
TRXN_READ1(resp),
TRXN_WRITE1(ns),
TRXN_COMPARE(resp, &cmd[1], 1),
TRXN_END
};
return BUS_transaction(t, pn);
}
/* read Wiper */
static GOOD_OR_BAD OW_r_wiper(UINT * val, const struct parsedname *pn)
{
BYTE fo[] = { _1W_READ_POSITION, };
BYTE resp[2];
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(fo),
TRXN_READ2(resp),
TRXN_END
};
RETURN_BAD_IF_BAD(BUS_transaction(t, pn)) ;
*val = resp[1];
return gbGOOD;
}
/* write Charge Pump */
static GOOD_OR_BAD OW_w_cp(const int val, const struct parsedname *pn)
{
BYTE resp[1];
BYTE cmd[] = { _1W_WRITE_CONTROL_REGISTER, (val) ? 0x4C : 0x0C };
BYTE ns[] = { _1W_RELEASE_WIPER, };
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE2(cmd),
TRXN_READ1(resp),
TRXN_WRITE1(ns),
TRXN_COMPARE(resp, &cmd[1], 1),
TRXN_END
};
return BUS_transaction(t, pn);
}
/* read Charge Pump */
static GOOD_OR_BAD OW_r_cp(int *val, const struct parsedname *pn)
{
BYTE aa[] = { _1W_READ_CONTROL_REGISTER, };
BYTE resp[2];
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(aa),
TRXN_READ2(resp),
TRXN_END
};
RETURN_BAD_IF_BAD(BUS_transaction(t, pn)) ;
*val = ((resp[1] & 0x40) != 0);
return gbGOOD;
}
// uses CRC8
static GOOD_OR_BAD OW_reading(BYTE * data, struct parsedname *pn)
{
BYTE p[1] = { _1W_READ_SCRATCHPAD, };
BYTE q[3];
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_WRITE2(q),
TRXN_READ1(&q[2]),
TRXN_CRC8(q,3),
TRXN_END,
};
RETURN_BAD_IF_BAD(BUS_transaction(t, pn)) ;
memcpy(data, q, 2);
return gbGOOD;
}
/* Reset activity latch */
static GOOD_OR_BAD OW_c_latch(const struct parsedname *pn)
{
BYTE reset_string[] = { _1W_RESET_ACTIVITY_LATCHES, };
BYTE read_back[1];
struct transaction_log t[] = {
TRXN_START,
TRXN_WRITE1(reset_string),
TRXN_READ1(read_back),
TRXN_END,
};
RETURN_BAD_IF_BAD(BUS_transaction(t, pn)) ;
if (read_back[0] != 0xAA) {
return gbBAD;
}
return gbGOOD;
}
/* paged, and pre-screened */
static GOOD_OR_BAD OW_w_mem(BYTE * data, size_t size, off_t offset, struct parsedname *pn)
{
BYTE p[1 + 2 + 32 + 2] = { _1W_WRITE_SCRATCHPAD, LOW_HIGH_ADDRESS(offset), };
struct transaction_log tcopy[] = {
TRXN_START,
TRXN_WRITE(p, 3 + size),
TRXN_END,
};
struct transaction_log tcopy_crc16[] = {
TRXN_START,
TRXN_WR_CRC16(p, 3 + size, 0),
TRXN_END,
};
struct transaction_log tread[] = {
TRXN_START,
TRXN_WRITE1(p),
TRXN_READ(&p[1], 3 + size),
TRXN_COMPARE(data, &p[4], size),
TRXN_END,
};
struct transaction_log tsram[] = {
TRXN_START,
TRXN_WRITE(p, 4),
TRXN_END,
};
/* Copy to scratchpad */
memcpy(&p[3], data, size);
RETURN_BAD_IF_BAD(BUS_transaction(((offset + size) & 0x1F) != 0 ? tcopy : tcopy_crc16, pn)) ;
/* Re-read scratchpad and compare */
/* Note that we tacitly shift the data one byte down for the E/S byte */
p[0] = _1W_READ_SCRATCHPAD;
RETURN_BAD_IF_BAD(BUS_transaction(tread, pn)) ;
/* Copy Scratchpad to SRAM */
p[0] = _1W_COPY_SCRATCHPAD;
return BUS_transaction(tsram, pn) ;
}
/* only called for a single page, and that page is 0,1,2 only*/
static GOOD_OR_BAD OW_r_page(BYTE * data, size_t size, off_t offset, const struct parsedname *pn)
{
int page = offset / _1W_2436_PAGESIZE; // integer round-down ok
BYTE scratchin[] = { _1W_READ_SCRATCHPAD, offset, };
static BYTE copyin[] = { _1W_COPY_NV1_TO_SP1, _1W_COPY_NV2_TO_SP2, _1W_COPY_NV3_TO_SP3, };
BYTE *copy = ©in[page];
struct transaction_log tcopy[] = {
TRXN_START,
TRXN_WRITE1(copy),
TRXN_DELAY(10),
TRXN_END,
};
struct transaction_log tscratch[] = {
TRXN_START,
TRXN_WRITE2(scratchin),
TRXN_READ(data, size),
TRXN_END,
};
RETURN_BAD_IF_BAD(BUS_transaction(tcopy, pn)) ;
return BUS_transaction(tscratch, pn) ;
}
/* write to 2450 */
static GOOD_OR_BAD OW_w_mem(BYTE * p, size_t size, off_t offset, struct parsedname *pn)
{
// command, address(2) , data , crc(2), databack
BYTE buf[6] = { _1W_WRITE_MEMORY, LOW_HIGH_ADDRESS(offset), p[0], };
BYTE echo[1];
size_t i;
struct transaction_log tfirst[] = {
TRXN_START,
TRXN_WR_CRC16(buf, 4, 0),
TRXN_READ1(echo),
TRXN_COMPARE(echo, p, 1),
TRXN_END,
};
struct transaction_log trest[] = { // note no TRXN_START
TRXN_WRITE1(buf),
TRXN_READ2(&buf[1]),
TRXN_READ1(echo),
TRXN_END,
};
//printf("2450 W mem size=%d location=%d\n",size,location) ;
if (size == 0) {
return gbGOOD;
}
/* Send the first byte (handled differently) */
RETURN_BAD_IF_BAD(BUS_transaction(tfirst, pn)) ;
/* rest of the bytes */
for (i = 1; i < size; ++i) {
buf[0] = p[i];
RETURN_BAD_IF_BAD( BUS_transaction(trest, pn) ) ;
if ( CRC16seeded(buf, 3, offset + i) || (echo[0] != p[i]) ) {
return gbBAD;
}
}
return gbGOOD;
}