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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/media/platform/renesas/vsp1/vsp1_dl.h
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/media/platform/renesas/vsp1/vsp1_dl.h')
-rw-r--r--drivers/media/platform/renesas/vsp1/vsp1_dl.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/media/platform/renesas/vsp1/vsp1_dl.h b/drivers/media/platform/renesas/vsp1/vsp1_dl.h
new file mode 100644
index 000000000..bebe16483
--- /dev/null
+++ b/drivers/media/platform/renesas/vsp1/vsp1_dl.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * vsp1_dl.h -- R-Car VSP1 Display List
+ *
+ * Copyright (C) 2015 Renesas Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+#ifndef __VSP1_DL_H__
+#define __VSP1_DL_H__
+
+#include <linux/types.h>
+
+struct vsp1_device;
+struct vsp1_dl_body;
+struct vsp1_dl_body_pool;
+struct vsp1_dl_list;
+struct vsp1_dl_manager;
+
+/* Keep these flags in sync with VSP1_DU_STATUS_* in include/media/vsp1.h. */
+#define VSP1_DL_FRAME_END_COMPLETED BIT(0)
+#define VSP1_DL_FRAME_END_WRITEBACK BIT(1)
+#define VSP1_DL_FRAME_END_INTERNAL BIT(2)
+
+/**
+ * struct vsp1_dl_ext_cmd - Extended Display command
+ * @pool: pool to which this command belongs
+ * @free: entry in the pool of free commands list
+ * @opcode: command type opcode
+ * @flags: flags used by the command
+ * @cmds: array of command bodies for this extended cmd
+ * @num_cmds: quantity of commands in @cmds array
+ * @cmd_dma: DMA address of the command body
+ * @data: memory allocation for command-specific data
+ * @data_dma: DMA address for command-specific data
+ */
+struct vsp1_dl_ext_cmd {
+ struct vsp1_dl_cmd_pool *pool;
+ struct list_head free;
+
+ u8 opcode;
+ u32 flags;
+
+ struct vsp1_pre_ext_dl_body *cmds;
+ unsigned int num_cmds;
+ dma_addr_t cmd_dma;
+
+ void *data;
+ dma_addr_t data_dma;
+};
+
+void vsp1_dlm_setup(struct vsp1_device *vsp1);
+
+struct vsp1_dl_manager *vsp1_dlm_create(struct vsp1_device *vsp1,
+ unsigned int index,
+ unsigned int prealloc);
+void vsp1_dlm_destroy(struct vsp1_dl_manager *dlm);
+void vsp1_dlm_reset(struct vsp1_dl_manager *dlm);
+unsigned int vsp1_dlm_irq_frame_end(struct vsp1_dl_manager *dlm);
+struct vsp1_dl_body *vsp1_dlm_dl_body_get(struct vsp1_dl_manager *dlm);
+
+struct vsp1_dl_list *vsp1_dl_list_get(struct vsp1_dl_manager *dlm);
+void vsp1_dl_list_put(struct vsp1_dl_list *dl);
+struct vsp1_dl_body *vsp1_dl_list_get_body0(struct vsp1_dl_list *dl);
+struct vsp1_dl_ext_cmd *vsp1_dl_get_pre_cmd(struct vsp1_dl_list *dl);
+void vsp1_dl_list_commit(struct vsp1_dl_list *dl, unsigned int dl_flags);
+
+struct vsp1_dl_body_pool *
+vsp1_dl_body_pool_create(struct vsp1_device *vsp1, unsigned int num_bodies,
+ unsigned int num_entries, size_t extra_size);
+void vsp1_dl_body_pool_destroy(struct vsp1_dl_body_pool *pool);
+struct vsp1_dl_body *vsp1_dl_body_get(struct vsp1_dl_body_pool *pool);
+void vsp1_dl_body_put(struct vsp1_dl_body *dlb);
+
+void vsp1_dl_body_write(struct vsp1_dl_body *dlb, u32 reg, u32 data);
+int vsp1_dl_list_add_body(struct vsp1_dl_list *dl, struct vsp1_dl_body *dlb);
+int vsp1_dl_list_add_chain(struct vsp1_dl_list *head, struct vsp1_dl_list *dl);
+
+#endif /* __VSP1_DL_H__ */