linux-kernel - [PATCH v4 2/8] dmaengine: xilinx: xdma: Add necessary macro definitions

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Date:   Fri,  8 Dec 2023 14:49:23 +0100
From:   Jan Kuliga <jankul@...tek.krakow.pl>
To:     lizhi.hou@....com, brian.xu@....com, raj.kumar.rampelli@....com,
        vkoul@...nel.org, michal.simek@....com, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org, miquel.raynal@...tlin.com
Cc:     jankul@...tek.krakow.pl
Subject: [PATCH v4 2/8] dmaengine: xilinx: xdma: Add necessary macro definitions

Complete lacking bits describing the status/control register values.
Add macros describing the status/control registers.

Signed-off-by: Jan Kuliga <jankul@...tek.krakow.pl>
---
 drivers/dma/xilinx/xdma-regs.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/dma/xilinx/xdma-regs.h b/drivers/dma/xilinx/xdma-regs.h
index 0b17a931f583..b12dd60629f6 100644
--- a/drivers/dma/xilinx/xdma-regs.h
+++ b/drivers/dma/xilinx/xdma-regs.h
@@ -76,6 +76,7 @@ struct xdma_hw_desc {
 #define XDMA_CHAN_CONTROL_W1S		0x8
 #define XDMA_CHAN_CONTROL_W1C		0xc
 #define XDMA_CHAN_STATUS		0x40
+#define XDMA_CHAN_STATUS_RC		0x44
 #define XDMA_CHAN_COMPLETED_DESC	0x48
 #define XDMA_CHAN_ALIGNMENTS		0x4c
 #define XDMA_CHAN_INTR_ENABLE		0x90
@@ -101,6 +102,7 @@ struct xdma_hw_desc {
 #define CHAN_CTRL_IE_MAGIC_STOPPED		BIT(4)
 #define CHAN_CTRL_IE_IDLE_STOPPED		BIT(6)
 #define CHAN_CTRL_IE_READ_ERROR			GENMASK(13, 9)
+#define CHAN_CTRL_IE_WRITE_ERROR		GENMASK(18, 14)
 #define CHAN_CTRL_IE_DESC_ERROR			GENMASK(23, 19)
 #define CHAN_CTRL_NON_INCR_ADDR			BIT(25)
 #define CHAN_CTRL_POLL_MODE_WB			BIT(26)
@@ -111,8 +113,17 @@ struct xdma_hw_desc {
 			 CHAN_CTRL_IE_DESC_ALIGN_MISMATCH |		\
 			 CHAN_CTRL_IE_MAGIC_STOPPED |			\
 			 CHAN_CTRL_IE_READ_ERROR |			\
+			 CHAN_CTRL_IE_WRITE_ERROR |			\
 			 CHAN_CTRL_IE_DESC_ERROR)

+#define XDMA_CHAN_STATUS_MASK CHAN_CTRL_START
+
+#define XDMA_CHAN_ERROR_MASK (CHAN_CTRL_IE_DESC_ALIGN_MISMATCH |	\
+				CHAN_CTRL_IE_MAGIC_STOPPED |		\
+				CHAN_CTRL_IE_READ_ERROR |		\
+				CHAN_CTRL_IE_WRITE_ERROR |		\
+				CHAN_CTRL_IE_DESC_ERROR)
+
 /* bits of the channel interrupt enable mask */
 #define CHAN_IM_DESC_ERROR			BIT(19)
 #define CHAN_IM_READ_ERROR			BIT(9)
--
2.34.1