Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 199 insertions, 0 deletions

diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
new file mode 100644
index 000000000..eb902b19c
--- /dev/null
+++ b/drivers/soundwire/cadence_master.h
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+// Copyright(c) 2015-17 Intel Corporation.
+#include <sound/soc.h>
+
+#ifndef __SDW_CADENCE_H
+#define __SDW_CADENCE_H
+
+/**
+ * struct sdw_cdns_pdi: PDI (Physical Data Interface) instance
+ *
+ * @assigned: pdi assigned
+ * @num: pdi number
+ * @intel_alh_id: link identifier
+ * @l_ch_num: low channel for PDI
+ * @h_ch_num: high channel for PDI
+ * @ch_count: total channel count for PDI
+ * @dir: data direction
+ * @type: stream type, PDM or PCM
+ */
+struct sdw_cdns_pdi {
+	bool assigned;
+	int num;
+	int intel_alh_id;
+	int l_ch_num;
+	int h_ch_num;
+	int ch_count;
+	enum sdw_data_direction dir;
+	enum sdw_stream_type type;
+};
+
+/**
+ * struct sdw_cdns_port: Cadence port structure
+ *
+ * @num: port number
+ * @assigned: port assigned
+ * @ch: channel count
+ * @direction: data port direction
+ * @pdi: pdi for this port
+ */
+struct sdw_cdns_port {
+	unsigned int num;
+	bool assigned;
+	unsigned int ch;
+	enum sdw_data_direction direction;
+	struct sdw_cdns_pdi *pdi;
+};
+
+/**
+ * struct sdw_cdns_streams: Cadence stream data structure
+ *
+ * @num_bd: number of bidirectional streams
+ * @num_in: number of input streams
+ * @num_out: number of output streams
+ * @num_ch_bd: number of bidirectional stream channels
+ * @num_ch_bd: number of input stream channels
+ * @num_ch_bd: number of output stream channels
+ * @num_pdi: total number of PDIs
+ * @bd: bidirectional streams
+ * @in: input streams
+ * @out: output streams
+ */
+struct sdw_cdns_streams {
+	unsigned int num_bd;
+	unsigned int num_in;
+	unsigned int num_out;
+	unsigned int num_ch_bd;
+	unsigned int num_ch_in;
+	unsigned int num_ch_out;
+	unsigned int num_pdi;
+	struct sdw_cdns_pdi *bd;
+	struct sdw_cdns_pdi *in;
+	struct sdw_cdns_pdi *out;
+};
+
+/**
+ * struct sdw_cdns_stream_config: stream configuration
+ *
+ * @pcm_bd: number of bidirectional PCM streams supported
+ * @pcm_in: number of input PCM streams supported
+ * @pcm_out: number of output PCM streams supported
+ * @pdm_bd: number of bidirectional PDM streams supported
+ * @pdm_in: number of input PDM streams supported
+ * @pdm_out: number of output PDM streams supported
+ */
+struct sdw_cdns_stream_config {
+	unsigned int pcm_bd;
+	unsigned int pcm_in;
+	unsigned int pcm_out;
+	unsigned int pdm_bd;
+	unsigned int pdm_in;
+	unsigned int pdm_out;
+};
+
+/**
+ * struct sdw_cdns_dma_data: Cadence DMA data
+ *
+ * @name: SoundWire stream name
+ * @nr_ports: Number of ports
+ * @port: Ports
+ * @bus: Bus handle
+ * @stream_type: Stream type
+ * @link_id: Master link id
+ */
+struct sdw_cdns_dma_data {
+	char *name;
+	struct sdw_stream_runtime *stream;
+	int nr_ports;
+	struct sdw_cdns_port **port;
+	struct sdw_bus *bus;
+	enum sdw_stream_type stream_type;
+	int link_id;
+};
+
+/**
+ * struct sdw_cdns - Cadence driver context
+ * @dev: Linux device
+ * @bus: Bus handle
+ * @instance: instance number
+ * @response_buf: SoundWire response buffer
+ * @tx_complete: Tx completion
+ * @defer: Defer pointer
+ * @ports: Data ports
+ * @num_ports: Total number of data ports
+ * @pcm: PCM streams
+ * @pdm: PDM streams
+ * @registers: Cadence registers
+ * @link_up: Link status
+ * @msg_count: Messages sent on bus
+ */
+struct sdw_cdns {
+	struct device *dev;
+	struct sdw_bus bus;
+	unsigned int instance;
+
+	u32 response_buf[0x80];
+	struct completion tx_complete;
+	struct sdw_defer *defer;
+
+	struct sdw_cdns_port *ports;
+	int num_ports;
+
+	struct sdw_cdns_streams pcm;
+	struct sdw_cdns_streams pdm;
+
+	void __iomem *registers;
+
+	bool link_up;
+	unsigned int msg_count;
+};
+
+#define bus_to_cdns(_bus) container_of(_bus, struct sdw_cdns, bus)
+
+/* Exported symbols */
+
+int sdw_cdns_probe(struct sdw_cdns *cdns);
+extern struct sdw_master_ops sdw_cdns_master_ops;
+
+irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
+irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
+
+int sdw_cdns_init(struct sdw_cdns *cdns);
+int sdw_cdns_pdi_init(struct sdw_cdns *cdns,
+			struct sdw_cdns_stream_config config);
+int sdw_cdns_enable_interrupt(struct sdw_cdns *cdns);
+
+int sdw_cdns_get_stream(struct sdw_cdns *cdns,
+			struct sdw_cdns_streams *stream,
+			u32 ch, u32 dir);
+int sdw_cdns_alloc_stream(struct sdw_cdns *cdns,
+			struct sdw_cdns_streams *stream,
+			struct sdw_cdns_port *port, u32 ch, u32 dir);
+void sdw_cdns_config_stream(struct sdw_cdns *cdns, struct sdw_cdns_port *port,
+			u32 ch, u32 dir, struct sdw_cdns_pdi *pdi);
+
+void sdw_cdns_shutdown(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai);
+int sdw_cdns_pcm_set_stream(struct snd_soc_dai *dai,
+				void *stream, int direction);
+int sdw_cdns_pdm_set_stream(struct snd_soc_dai *dai,
+				void *stream, int direction);
+
+enum sdw_command_response
+cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
+
+enum sdw_command_response
+cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg);
+
+enum sdw_command_response
+cdns_xfer_msg_defer(struct sdw_bus *bus,
+		struct sdw_msg *msg, struct sdw_defer *defer);
+
+enum sdw_command_response
+cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
+
+int cdns_bus_conf(struct sdw_bus *bus, struct sdw_bus_params *params);
+
+int cdns_set_sdw_stream(struct snd_soc_dai *dai,
+		void *stream, bool pcm, int direction);
+#endif /* __SDW_CADENCE_H */