From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/soundwire/bus.h | 109 ++++++++++++++++++++++++++++++++++++++++++++++++------
1 files changed, 97 insertions(+), 12 deletions(-)
diff --git a/kernel/drivers/soundwire/bus.h b/kernel/drivers/soundwire/bus.h
index 3b15c4e..2e049d3 100644
--- a/kernel/drivers/soundwire/bus.h
+++ b/kernel/drivers/soundwire/bus.h
@@ -1,8 +1,11 @@
-// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
-// Copyright(c) 2015-17 Intel Corporation.
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
+/* Copyright(c) 2015-17 Intel Corporation. */
#ifndef __SDW_BUS_H
#define __SDW_BUS_H
+
+#define DEFAULT_BANK_SWITCH_TIMEOUT 3000
+#define DEFAULT_PROBE_TIMEOUT 2000
#if IS_ENABLED(CONFIG_ACPI)
int sdw_acpi_find_slaves(struct sdw_bus *bus);
@@ -13,8 +16,30 @@
}
#endif
+int sdw_of_find_slaves(struct sdw_bus *bus);
void sdw_extract_slave_id(struct sdw_bus *bus,
- u64 addr, struct sdw_slave_id *id);
+ u64 addr, struct sdw_slave_id *id);
+int sdw_slave_add(struct sdw_bus *bus, struct sdw_slave_id *id,
+ struct fwnode_handle *fwnode);
+int sdw_master_device_add(struct sdw_bus *bus, struct device *parent,
+ struct fwnode_handle *fwnode);
+int sdw_master_device_del(struct sdw_bus *bus);
+
+#ifdef CONFIG_DEBUG_FS
+void sdw_bus_debugfs_init(struct sdw_bus *bus);
+void sdw_bus_debugfs_exit(struct sdw_bus *bus);
+void sdw_slave_debugfs_init(struct sdw_slave *slave);
+void sdw_slave_debugfs_exit(struct sdw_slave *slave);
+void sdw_debugfs_init(void);
+void sdw_debugfs_exit(void);
+#else
+static inline void sdw_bus_debugfs_init(struct sdw_bus *bus) {}
+static inline void sdw_bus_debugfs_exit(struct sdw_bus *bus) {}
+static inline void sdw_slave_debugfs_init(struct sdw_slave *slave) {}
+static inline void sdw_slave_debugfs_exit(struct sdw_slave *slave) {}
+static inline void sdw_debugfs_init(void) {}
+static inline void sdw_debugfs_exit(void) {}
+#endif
enum {
SDW_MSG_FLAG_READ = 0,
@@ -46,9 +71,13 @@
};
#define SDW_DOUBLE_RATE_FACTOR 2
+#define SDW_STRM_RATE_GROUPING 1
-extern int rows[SDW_FRAME_ROWS];
-extern int cols[SDW_FRAME_COLS];
+extern int sdw_rows[SDW_FRAME_ROWS];
+extern int sdw_cols[SDW_FRAME_COLS];
+
+int sdw_find_row_index(int row);
+int sdw_find_col_index(int col);
/**
* sdw_port_runtime: Runtime port parameters for Master or Slave
@@ -99,6 +128,7 @@
* this stream, can be zero.
* @slave_rt_list: Slave runtime list
* @port_list: List of Master Ports configured for this stream, can be zero.
+ * @stream_node: sdw_stream_runtime master_list node
* @bus_node: sdw_bus m_rt_list node
*/
struct sdw_master_runtime {
@@ -108,27 +138,69 @@
unsigned int ch_count;
struct list_head slave_rt_list;
struct list_head port_list;
+ struct list_head stream_node;
struct list_head bus_node;
};
struct sdw_dpn_prop *sdw_get_slave_dpn_prop(struct sdw_slave *slave,
- enum sdw_data_direction direction,
- unsigned int port_num);
+ enum sdw_data_direction direction,
+ unsigned int port_num);
int sdw_configure_dpn_intr(struct sdw_slave *slave, int port,
- bool enable, int mask);
+ bool enable, int mask);
int sdw_transfer(struct sdw_bus *bus, struct sdw_msg *msg);
int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg,
- struct sdw_defer *defer);
+ struct sdw_defer *defer);
#define SDW_READ_INTR_CLEAR_RETRY 10
int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave,
- u32 addr, size_t count, u16 dev_num, u8 flags, u8 *buf);
+ u32 addr, size_t count, u16 dev_num, u8 flags, u8 *buf);
+
+/* Retrieve and return channel count from channel mask */
+static inline int sdw_ch_mask_to_ch(int ch_mask)
+{
+ int c = 0;
+
+ for (c = 0; ch_mask; ch_mask >>= 1)
+ c += ch_mask & 1;
+
+ return c;
+}
+
+/* Fill transport parameter data structure */
+static inline void sdw_fill_xport_params(struct sdw_transport_params *params,
+ int port_num, bool grp_ctrl_valid,
+ int grp_ctrl, int sample_int,
+ int off1, int off2,
+ int hstart, int hstop,
+ int pack_mode, int lane_ctrl)
+{
+ params->port_num = port_num;
+ params->blk_grp_ctrl_valid = grp_ctrl_valid;
+ params->blk_grp_ctrl = grp_ctrl;
+ params->sample_interval = sample_int;
+ params->offset1 = off1;
+ params->offset2 = off2;
+ params->hstart = hstart;
+ params->hstop = hstop;
+ params->blk_pkg_mode = pack_mode;
+ params->lane_ctrl = lane_ctrl;
+}
+
+/* Fill port parameter data structure */
+static inline void sdw_fill_port_params(struct sdw_port_params *params,
+ int port_num, int bps,
+ int flow_mode, int data_mode)
+{
+ params->num = port_num;
+ params->bps = bps;
+ params->flow_mode = flow_mode;
+ params->data_mode = data_mode;
+}
/* Read-Modify-Write Slave register */
-static inline int
-sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
+static inline int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
{
int tmp;
@@ -140,4 +212,17 @@
return sdw_write(slave, addr, tmp);
}
+/* broadcast read/write for tests */
+int sdw_bread_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr);
+int sdw_bwrite_no_pm_unlocked(struct sdw_bus *bus, u16 dev_num, u32 addr, u8 value);
+
+/*
+ * At the moment we only track Master-initiated hw_reset.
+ * Additional fields can be added as needed
+ */
+#define SDW_UNATTACH_REQUEST_MASTER_RESET BIT(0)
+
+void sdw_clear_slave_status(struct sdw_bus *bus, u32 request);
+int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size);
+
#endif /* __SDW_BUS_H */
--
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