--
Uwe Bonnes bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt
--------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------
>From e56d3d7b8f25ceb903c5339c76da62807377724f Mon Sep 17 00:00:00 2001
From: Uwe Bonnes <bon@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 14 Aug 2014 14:34:38 +0200
Subject: FT230X: Readout, decode and encode the RS232 inverson configuration
bits.
---
src/ftdi.c | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/ftdi.h | 1 +
src/ftdi_i.h | 5 +++++
3 files changed, 68 insertions(+)
diff --git a/src/ftdi.c b/src/ftdi.c
index c62428d..978342b 100644
--- a/src/ftdi.c
+++ b/src/ftdi.c
@@ -3065,6 +3065,7 @@ int ftdi_eeprom_build(struct ftdi_context *ftdi)
{
output[0x1a + j] = eeprom->cbus_function[j];
}
+ output[0x0b] = eeprom->rs232_inversion;
break;
}
@@ -3389,6 +3390,8 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int
verbose)
eeprom->group1_drive = (buf[0x0c] >> 4) & 0x03;
eeprom->group1_schmitt = (buf[0x0c] >> 4) & IS_SCHMITT;
eeprom->group1_slew = (buf[0x0c] >> 4) & SLOW_SLEW;
+
+ eeprom->rs232_inversion = buf[0xb];
}
if (verbose)
@@ -3512,6 +3515,57 @@ int ftdi_eeprom_decode(struct ftdi_context *ftdi, int
verbose)
if (eeprom->cbus_function[i]<= CBUSH_AWAKE)
fprintf(stdout,"CBUS%d Function: %s\n", i,
cbush_mux[eeprom->cbus_function[i]]);
}
+ if(eeprom->rs232_inversion ) {
+ int i = 0;
+ fprintf(stdout,"Inversion on ");
+ if (eeprom->rs232_inversion & INVERT_TXD) {
+ fprintf(stdout,"TXD");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_RXD) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"RXD");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_RTS) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"RTS");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_CTS) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"CTS");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_DTR) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"DTR");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_DSR) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"DSR");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_DCD) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"DCD");
+ i = 1;
+ }
+ if (eeprom->rs232_inversion & INVERT_RI) {
+ if (i)
+ fprintf(stdout,", ");
+ fprintf(stdout,"RI");
+ i = 1;
+ }
+ fprintf(stdout," Pin(s)\n");
+ }
}
if (ftdi->type == TYPE_R)
@@ -3734,6 +3788,9 @@ int ftdi_get_eeprom_value(struct ftdi_context *ftdi, enum
ftdi_eeprom_value valu
case CHIP_SIZE:
*value = ftdi->eeprom->size;
break;
+ case RS232_INVERSION:
+ *value = ftdi->eeprom->rs232_inversion;
+ break;
default:
ftdi_error_return(-1, "Request for unknown EEPROM value");
}
@@ -3923,6 +3980,11 @@ int ftdi_set_eeprom_value(struct ftdi_context *ftdi,
enum ftdi_eeprom_value valu
break;
case CHIP_SIZE:
ftdi_error_return(-2, "EEPROM Value can't be changed");
+ break;
+ case RS232_INVERSION:
+ ftdi->eeprom->rs232_inversion = value;
+ break;
+
default :
ftdi_error_return(-1, "Request to unknown EEPROM value");
}
diff --git a/src/ftdi.h b/src/ftdi.h
index 07fcd71..e192a66 100644
--- a/src/ftdi.h
+++ b/src/ftdi.h
@@ -332,6 +332,7 @@ enum ftdi_eeprom_value
CHANNEL_C_RS485 = 53,
CHANNEL_D_RS485 = 54,
RELEASE_NUMBER = 55,
+ RS232_INVERSION = 56,
};
/**
diff --git a/src/ftdi_i.h b/src/ftdi_i.h
index 19d8dd5..066790b 100644
--- a/src/ftdi_i.h
+++ b/src/ftdi_i.h
@@ -123,6 +123,11 @@ struct ftdi_eeprom
int data_order;
int flow_control;
+ /* FT-X Device and Peripheral control
+ * Fixme: Decode byte[0xa]
+ */
+ int rs232_inversion;
+
/** eeprom size in bytes. This doesn't get stored in the eeprom
but is the only way to pass it to ftdi_eeprom_build. */
int size;
--
1.8.4.5
--
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