linux-kernel - [PATCH v2 03/15] soundwire: add port-related definitions

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Date:   Wed, 22 May 2019 14:47:19 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, tiwai@...e.de, broonie@...nel.org,
        vkoul@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Sanyog Kale <sanyog.r.kale@...el.com>
Subject: [PATCH v2 03/15] soundwire: add port-related definitions

Somehow previous header files did not include definition for
sink/source, flow and grouping.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
---
 include/linux/soundwire/sdw.h | 53 +++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 35662d9c2c62..69ae680a5a21 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -41,6 +41,31 @@ struct sdw_slave;
 #define SDW_DAI_ID_RANGE_START		100
 #define SDW_DAI_ID_RANGE_END		200
 
+enum {
+	SDW_PORT_DIRN_SINK = 0,
+	SDW_PORT_DIRN_SOURCE,
+	SDW_PORT_DIRN_MAX,
+};
+
+/*
+ * constants for flow control, ports and transport
+ *
+ * these are bit masks as devices can have multiple capabilities
+ */
+
+/*
+ * flow modes for SDW port. These can be isochronous, tx controlled,
+ * rx controlled or async
+ */
+#define SDW_PORT_FLOW_MODE_ISOCH	0
+#define SDW_PORT_FLOW_MODE_TX_CNTRL	BIT(0)
+#define SDW_PORT_FLOW_MODE_RX_CNTRL	BIT(1)
+#define SDW_PORT_FLOW_MODE_ASYNC	GENMASK(1, 0)
+
+/* sample packaging for block. It can be per port or per channel */
+#define SDW_BLOCK_PACKG_PER_PORT	BIT(0)
+#define SDW_BLOCK_PACKG_PER_CH		BIT(1)
+
 /**
  * enum sdw_slave_status - Slave status
  * @SDW_SLAVE_UNATTACHED: Slave is not attached with the bus.
@@ -76,6 +101,14 @@ enum sdw_command_response {
 	SDW_CMD_FAIL_OTHER = 4,
 };
 
+/* block group count enum */
+enum sdw_dpn_grouping {
+	SDW_BLK_GRP_CNT_1 = 0,
+	SDW_BLK_GRP_CNT_2 = 1,
+	SDW_BLK_GRP_CNT_3 = 2,
+	SDW_BLK_GRP_CNT_4 = 3,
+};
+
 /**
  * enum sdw_stream_type: data stream type
  *
@@ -100,6 +133,26 @@ enum sdw_data_direction {
 	SDW_DATA_DIR_TX = 1,
 };
 
+/**
+ * enum sdw_port_data_mode: Data Port mode
+ *
+ * @SDW_PORT_DATA_MODE_NORMAL: Normal data mode where audio data is received
+ * and transmitted.
+ * @SDW_PORT_DATA_MODE_STATIC_1: Simple test mode which uses static value of
+ * logic 1. The encoding will result in signal transitions at every bitslot
+ * owned by this Port
+ * @SDW_PORT_DATA_MODE_STATIC_0: Simple test mode which uses static value of
+ * logic 0. The encoding will result in no signal transitions
+ * @SDW_PORT_DATA_MODE_PRBS: Test mode which uses a PRBS generator to produce
+ * a pseudo random data pattern that is transferred
+ */
+enum sdw_port_data_mode {
+	SDW_PORT_DATA_MODE_NORMAL = 0,
+	SDW_PORT_DATA_MODE_STATIC_1 = 1,
+	SDW_PORT_DATA_MODE_STATIC_0 = 2,
+	SDW_PORT_DATA_MODE_PRBS = 3,
+};
+
 /*
  * SDW properties, defined in MIPI DisCo spec v1.0
  */
-- 
2.20.1