staging: comedi: comedi.h: add clock sources for amplc_dio200 timer

Add clock source constants for the timer subdevice of the PCIe cards
supported by the "amplc_dio200" driver.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
index e0e822d..3cbd2cd 100644 (file)
--- a/drivers/staging/comedi/comedi.h
+++ b/drivers/staging/comedi/comedi.h
@@ -896,6 +896,14 @@ enum amplc_dio_clock_source {
        AMPLC_DIO_CLK_20MHZ     /* 20 MHz internal clock */
 };
 
+/* Values for setting a clock source with INSN_CONFIG_SET_CLOCK_SRC for
+ * timer subdevice on some Amplicon DIO PCIe boards (amplc_dio200 driver). */
+enum amplc_dio_ts_clock_src {
+       AMPLC_DIO_TS_CLK_1GHZ,  /* 1 ns period with 20 ns granularity */
+       AMPLC_DIO_TS_CLK_1MHZ,  /* 1 us period */
+       AMPLC_DIO_TS_CLK_1KHZ   /* 1 ms period */
+};
+
 /* Values for setting a gate source with INSN_CONFIG_SET_GATE_SRC for
  * 8254 counter subdevices on Amplicon DIO boards (amplc_dio200 driver). */
 enum amplc_dio_gate_source {