Added definitions for possible scan_begin_srcs on NI m-series

with upcoming correlated dio command support.

diff --git a/include/linux/comedi.h b/include/linux/comedi.h
index 9bc0cf9342b352e8d11cfe0e765b53fd563ce60d..12ad8060da504a5fe13918a9b94b37bd27a8a4f2 100644 (file)
--- a/include/linux/comedi.h
+++ b/include/linux/comedi.h
@@ -492,6 +492,20 @@ enum i8254_mode
        I8254_BINARY = 0
 };
 
+static inline unsigned NI_USUAL_PFI_SELECT(unsigned pfi_channel)
+{
+       if(pfi_channel < 10)
+               return 0x1 + pfi_channel;
+       else
+               return 0xb + pfi_channel;
+}
+static inline unsigned NI_USUAL_RTSI_SELECT(unsigned rtsi_channel)
+{
+       if(rtsi_channel < 7)
+               return 0xb + rtsi_channel;
+       else
+               return 0x1b;
+}
 /* mode bits for NI general-purpose counters, set with INSN_CONFIG_SET_COUNTER_MODE */
 #define NI_GPCT_COUNTING_MODE_SHIFT 16
 #define NI_GPCT_INDEX_PHASE_BITSHIFT 20
@@ -610,17 +624,11 @@ static inline unsigned NI_GPCT_GATE_PIN_GATE_SELECT(unsigned n)
 }
 static inline unsigned NI_GPCT_RTSI_GATE_SELECT(unsigned n)
 {
-       if(n < 7)
-               return 0xb + n;
-       else
-               return 0x1b;
+       return NI_USUAL_RTSI_SELECT(n);
 }
 static inline unsigned NI_GPCT_PFI_GATE_SELECT(unsigned n)
 {
-       if(n < 10)
-               return 0x1 + n;
-       else
-               return 0xb + n;
+       return NI_USUAL_PFI_SELECT(n);
 }
 static inline unsigned NI_GPCT_UP_DOWN_PIN_GATE_SELECT(unsigned n)
 {
@@ -642,14 +650,7 @@ enum ni_gpct_other_select
 };
 static inline unsigned NI_GPCT_PFI_OTHER_SELECT(unsigned n)
 {
-       if (n < 10) {
-               return 0x1 + n;
-       } else if (n < 16) {
-               return 0xb + n;
-       } else {
-               // Really should report this error somehow
-               return NI_GPCT_DISABLED_OTHER_SELECT;
-       }
+       return NI_USUAL_PFI_SELECT(n);
 }
 
 
@@ -765,13 +766,11 @@ static inline unsigned NI_PFI_OUTPUT_RTSI(unsigned rtsi_channel)
        the bits required to program the board (offset by 1 for historical reasons). */
 static inline unsigned NI_EXT_PFI(unsigned pfi_channel)
 {
-       if(pfi_channel < 10) return pfi_channel;
-       else return pfi_channel + 10;
+       return NI_USUAL_PFI_SELECT(pfi_channel) - 1;
 }
 static inline unsigned NI_EXT_RTSI(unsigned rtsi_channel)
 {
-       if(rtsi_channel < 7) return 10 + rtsi_channel;
-       else return 19 + rtsi_channel;
+       return NI_USUAL_RTSI_SELECT(rtsi_channel) - 1;
 }
 
 /* status bits for INSN_CONFIG_GET_COUNTER_STATUS */
@@ -782,6 +781,30 @@ enum comedi_counter_status_flags
        COMEDI_COUNTER_TERMINAL_COUNT = 0x4,
 };
 
+/* Clock sources for CDIO subdevice on NI m-series boards.
+Used as the scan_begin_arg for a comedi_command. */
+enum ni_m_series_cdio_scan_begin_src
+{
+       NI_CDIO_SCAN_BEGIN_SRC_GROUND = 0,
+       NI_CDIO_SCAN_BEGIN_SRC_AI_START = 18,
+       NI_CDIO_SCAN_BEGIN_SRC_AI_CONVERT = 19,
+       NI_CDIO_SCAN_BEGIN_SRC_PXI_STAR_TRIGGER = 20,
+       NI_CDIO_SCAN_BEGIN_SRC_G0_OUT = 28,
+       NI_CDIO_SCAN_BEGIN_SRC_G1_OUT = 29,
+       NI_CDIO_SCAN_BEGIN_SRC_ANALOG_TRIGGER = 30,
+       NI_CDIO_SCAN_BEGIN_SRC_AO_UPDATE = 31,
+       NI_CDIO_SCAN_BEGIN_SRC_FREQ_OUT = 32,
+       NI_CDIO_SCAN_BEGIN_SRC_DIO_CHANGE_DETECT_IRQ = 33
+};
+static inline unsigned NI_CDIO_SCAN_BEGIN_SRC_PFI(unsigned pfi_channel)
+{
+       return NI_USUAL_PFI_SELECT(pfi_channel);
+}
+static inline unsigned NI_CDIO_SCAN_BEGIN_SRC_RTSI(unsigned rtsi_channel)
+{
+       return NI_USUAL_RTSI_SELECT(rtsi_channel);
+}
+
 #ifdef __cplusplus
 }
 #endif