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[PATCH 17/20] staging: comedi: drivers: add PLX PCI 9080 DMATHR register values

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Add macros in "plx9080.h" that define values for the DMATHR register
values.  Use the prefix `PLX_DMATHR_` for the macros.  Make use of the
`BIT(x)` and `GENMASK(h,l)` macros to define the values.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
---
 drivers/staging/comedi/drivers/plx9080.h | 41 ++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h
index 9e76342..50d0b1b 100644
--- a/drivers/staging/comedi/drivers/plx9080.h
+++ b/drivers/staging/comedi/drivers/plx9080.h
@@ -544,6 +544,47 @@ struct plx_dma_desc {
 #define PLX_REG_DMATHR		0x00b0
 
 /*
+ * DMA Threshold constraints:
+ * (C0PLAF + 1) + (C0PLAE + 1) <= 32
+ * (C0LPAF + 1) + (C0LPAE + 1) <= 32
+ * (C1PLAF + 1) + (C1PLAE + 1) <= 16
+ * (C1LPAF + 1) + (C1LPAE + 1) <= 16
+ */
+
+/* DMA Channel 0 PCI-to-Local Almost Full (divided by 2, minus 1) */
+#define PLX_DMATHR_C0PLAF(x)	(BIT(0) * ((x) & 0xf))
+#define PLX_DMATHR_C0PLAF_MASK	GENMASK(3, 0)
+#define PLX_DMATHR_C0PLAF_SHIFT	0
+/* DMA Channel 0 Local-to-PCI Almost Empty (divided by 2, minus 1) */
+#define PLX_DMATHR_C0LPAE(x)	(BIT(4) * ((x) & 0xf))
+#define PLX_DMATHR_C0LPAE_MASK	GENMASK(7, 4)
+#define PLX_DMATHR_C0LPAE_SHIFT	4
+/* DMA Channel 0 Local-to-PCI Almost Full (divided by 2, minus 1) */
+#define PLX_DMATHR_C0LPAF(x)	(BIT(8) * ((x) & 0xf))
+#define PLX_DMATHR_C0LPAF_MASK	GENMASK(11, 8)
+#define PLX_DMATHR_C0LPAF_SHIFT	8
+/* DMA Channel 0 PCI-to-Local Almost Empty (divided by 2, minus 1) */
+#define PLX_DMATHR_C0PLAE(x)	(BIT(12) * ((x) & 0xf))
+#define PLX_DMATHR_C0PLAE_MASK	GENMASK(15, 12)
+#define PLX_DMATHR_C0PLAE_SHIFT	12
+/* DMA Channel 1 PCI-to-Local Almost Full (divided by 2, minus 1) */
+#define PLX_DMATHR_C1PLAF(x)	(BIT(16) * ((x) & 0xf))
+#define PLX_DMATHR_C1PLAF_MASK	GENMASK(19, 16)
+#define PLX_DMATHR_C1PLAF_SHIFT	16
+/* DMA Channel 1 Local-to-PCI Almost Empty (divided by 2, minus 1) */
+#define PLX_DMATHR_C1LPAE(x)	(BIT(20) * ((x) & 0xf))
+#define PLX_DMATHR_C1LPAE_MASK	GENMASK(23, 20)
+#define PLX_DMATHR_C1LPAE_SHIFT	20
+/* DMA Channel 1 Local-to-PCI Almost Full (divided by 2, minus 1) */
+#define PLX_DMATHR_C1LPAF(x)	(BIT(24) * ((x) & 0xf))
+#define PLX_DMATHR_C1LPAF_MASK	GENMASK(27, 24)
+#define PLX_DMATHR_C1LPAF_SHIFT	24
+/* DMA Channel 1 PCI-to-Local Almost Empty (divided by 2, minus 1) */
+#define PLX_DMATHR_C1PLAE(x)	(BIT(28) * ((x) & 0xf))
+#define PLX_DMATHR_C1PLAE_MASK	GENMASK(31, 28)
+#define PLX_DMATHR_C1PLAE_SHIFT	28
+
+/*
  * Messaging Queue Registers OPLFIS, OPLFIM, IQP, OQP, MQCR, QBAR, IFHPR,
  * IFTPR, IPHPR, IPTPR, OFHPR, OFTPR, OPHPR, OPTPR, and QSR have been omitted.
  * They are used by the I2O feature.  (IQP and OQP occupy the usual offsets of
-- 
2.8.1

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[PATCH 00/20] staging: comedi: re-do drivers/plx9080.h Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 15:50 +0200
  [PATCH 20/20] staging: comedi: plx9080.h: include headers for declarations Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 16/20] staging: comedi: drivers: re-do PLX PCI 9080 DMACSRx register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 14/20] staging: comedi: drivers: re-do PLX PCI 9080 DMAMODEx register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 18/20] staging: comedi: plx9080.h: tidy up some comments Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 15/20] staging: comedi: drivers: re-do PLX PCI 9080 DMADPRx register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 13/20] staging: comedi: plx9080.h: add hard-coded PCIHIDR register value Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 01/20] staging: comedi: plx9080.h: correct LRNG_IO_MASK and LMAP_IO_MASK Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 09/20] staging: comedi: drivers: re-do PLX PCI 9080 DMPBAM register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 07/20] staging: comedi: drivers: re-do PLX PCI 9080 BIGEND register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 06/20] staging: comedi: drivers: re-do PLX PCI 9080 MARBR register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 05/20] staging: comedi: drivers: re-do macros for PLX PCI 9080 LASxBA values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 19/20] staging: comedi: plx9080.h: Add kerneldoc comments Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 12/20] staging: comedi: drivers: re-do PLX PCI 9080 CNTRL register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 10/20] staging: comedi: drivers: re-do PLX PCI 9080 DMCFGA register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 11/20] staging: comedi: drivers: re-do PLX PCI 9080 INTCSR register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 17/20] staging: comedi: drivers: add PLX PCI 9080 DMATHR register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 08/20] staging: comedi: drivers: re-do PLX PCI 9080 LBRDx register values Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
  [PATCH 03/20] staging: comedi: drivers: rename PLX PCI 9080 register offsets Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 16:00 +0200
    RE: [PATCH 03/20] staging: comedi: drivers: rename PLX PCI 9080  register offsets Hartley Sweeten <HartleyS@visionengravers.com> - 2016-05-20 18:30 +0200
      Re: [PATCH 03/20] staging: comedi: drivers: rename PLX PCI 9080  register offsets Ian Abbott <abbotti@mev.co.uk> - 2016-05-20 18:40 +0200
        RE: [PATCH 03/20] staging: comedi: drivers: rename PLX PCI 9080  register offsets Hartley Sweeten <HartleyS@visionengravers.com> - 2016-05-20 19:00 +0200

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