| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | /* exynos_drm.h
 | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (c) 2011 Samsung Electronics Co., Ltd. | 
					
						
							|  |  |  |  * Authors: | 
					
						
							|  |  |  |  *	Inki Dae <inki.dae@samsung.com> | 
					
						
							|  |  |  |  *	Joonyoung Shim <jy0922.shim@samsung.com> | 
					
						
							|  |  |  |  *	Seung-Woo Kim <sw0312.kim@samsung.com> | 
					
						
							|  |  |  |  * | 
					
						
							| 
									
										
										
										
											2012-12-18 02:30:17 +09:00
										 |  |  |  * This program is free software; you can redistribute  it and/or modify it | 
					
						
							|  |  |  |  * under  the terms of  the GNU General  Public License as published by the | 
					
						
							|  |  |  |  * Free Software Foundation;  either version 2 of the  License, or (at your | 
					
						
							|  |  |  |  * option) any later version. | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  |  */ | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #ifndef _UAPI_EXYNOS_DRM_H_
 | 
					
						
							|  |  |  | #define _UAPI_EXYNOS_DRM_H_
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #include <drm/drm.h>
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * User-desired buffer creation information structure. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @size: user-desired memory allocation size. | 
					
						
							|  |  |  |  *	- this size value would be page-aligned internally. | 
					
						
							|  |  |  |  * @flags: user request for setting memory type or cache attributes. | 
					
						
							|  |  |  |  * @handle: returned a handle to created gem object. | 
					
						
							|  |  |  |  *	- this handle will be set by gem module of kernel side. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_gem_create { | 
					
						
							|  |  |  | 	uint64_t size; | 
					
						
							|  |  |  | 	unsigned int flags; | 
					
						
							|  |  |  | 	unsigned int handle; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure to gem information. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @handle: a handle to gem object created. | 
					
						
							|  |  |  |  * @flags: flag value including memory type and cache attribute and | 
					
						
							|  |  |  |  *	this value would be set by driver. | 
					
						
							|  |  |  |  * @size: size to memory region allocated by gem and this size would | 
					
						
							|  |  |  |  *	be set by driver. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_gem_info { | 
					
						
							|  |  |  | 	unsigned int handle; | 
					
						
							|  |  |  | 	unsigned int flags; | 
					
						
							|  |  |  | 	uint64_t size; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for user connection request of virtual display. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @connection: indicate whether doing connetion or not by user. | 
					
						
							|  |  |  |  * @extensions: if this value is 1 then the vidi driver would need additional | 
					
						
							|  |  |  |  *	128bytes edid data. | 
					
						
							|  |  |  |  * @edid: the edid data pointer from user side. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_vidi_connection { | 
					
						
							|  |  |  | 	unsigned int connection; | 
					
						
							|  |  |  | 	unsigned int extensions; | 
					
						
							|  |  |  | 	uint64_t edid; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* memory type definitions. */ | 
					
						
							|  |  |  | enum e_drm_exynos_gem_mem_type { | 
					
						
							|  |  |  | 	/* Physically Continuous memory and used as default. */ | 
					
						
							|  |  |  | 	EXYNOS_BO_CONTIG	= 0 << 0, | 
					
						
							|  |  |  | 	/* Physically Non-Continuous memory. */ | 
					
						
							|  |  |  | 	EXYNOS_BO_NONCONTIG	= 1 << 0, | 
					
						
							|  |  |  | 	/* non-cachable mapping and used as default. */ | 
					
						
							|  |  |  | 	EXYNOS_BO_NONCACHABLE	= 0 << 1, | 
					
						
							|  |  |  | 	/* cachable mapping. */ | 
					
						
							|  |  |  | 	EXYNOS_BO_CACHABLE	= 1 << 1, | 
					
						
							|  |  |  | 	/* write-combine mapping. */ | 
					
						
							|  |  |  | 	EXYNOS_BO_WC		= 1 << 2, | 
					
						
							|  |  |  | 	EXYNOS_BO_MASK		= EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE | | 
					
						
							|  |  |  | 					EXYNOS_BO_WC | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_g2d_get_ver { | 
					
						
							|  |  |  | 	__u32	major; | 
					
						
							|  |  |  | 	__u32	minor; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_g2d_cmd { | 
					
						
							|  |  |  | 	__u32	offset; | 
					
						
							|  |  |  | 	__u32	data; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add userptr feature for g2d module
This patch adds userptr feautre for G2D module.
The userptr means user space address allocated by malloc().
And the purpose of this feature is to make G2D's dma able
to access the user space region.
To user this feature, user should flag G2D_BUF_USRPTR to
offset variable of struct drm_exynos_g2d_cmd and fill
struct drm_exynos_g2d_userptr with user space address
and size for it and then should set a pointer to
drm_exynos_g2d_userptr object to data variable of struct
drm_exynos_g2d_cmd. The last bit of offset variable is used
to check if the cmdlist's buffer type is userptr or not.
If userptr, the g2d driver gets user space address and size
and then gets pages through get_user_pages().
(another case is counted as gem handle)
Below is sample codes:
static void set_cmd(struct drm_exynos_g2d_cmd *cmd,
		unsigned long offset, unsigned long data)
{
	cmd->offset = offset;
	cmd->data = data;
}
static int solid_fill_test(int x, int y, unsigned long userptr)
{
	struct drm_exynos_g2d_cmd cmd_gem[5];
	struct drm_exynos_g2d_userptr g2d_userptr;
	unsigned int gem_nr = 0;
	...
	g2d_userptr.userptr = userptr;
	g2d_userptr.size = x * y * 4;
	set_cmd(&cmd_gem[gem_nr++], DST_BASE_ADDR_REG |
					G2D_BUF_USERPTR,
			(unsigned long)&g2d_userptr);
	...
}
int main(int argc, char **argv)
{
	unsigned long addr;
	...
	addr = malloc(x * y * 4);
	...
	solid_fill_test(x, y, addr);
	...
}
And next, the pages are mapped with iommu table and the device
address is set to cmdlist so that G2D's dma can access it.
As you may know, the pages from get_user_pages() are pinned.
In other words, they CAN NOT be migrated and also swapped out.
So the dma access would be safe.
But the use of userptr feature has performance overhead so
this patch also has memory pool to the userptr feature.
Please, assume that user sends cmdlist filled with userptr
and size every time to g2d driver, and the get_user_pages
funcion will be called every time.
The memory pool has maximum 64MB size and the userptr that
user had ever sent, is holded in the memory pool.
This meaning is that if the userptr from user is same as one
in the memory pool, device address to the userptr in the memory
pool is set to cmdlist.
And last, the pages from get_user_pages() will be freed once
user calls free() and the dma access is completed. Actually,
get_user_pages() takes 2 reference counts if the user process
has never accessed user region allocated by malloc(). Then, if
the user calls free(), the page reference count becomes 1 and
becomes 0 with put_page() call. And the reverse holds as well.
This means how the pages backed are used by dma and freed.
This patch is based on "drm/exynos: add iommu support for g2d",
	https://patchwork.kernel.org/patch/1629481/
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-11-04 05:48:52 -08:00
										 |  |  | enum drm_exynos_g2d_buf_type { | 
					
						
							|  |  |  | 	G2D_BUF_USERPTR = 1 << 31, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | enum drm_exynos_g2d_event_type { | 
					
						
							|  |  |  | 	G2D_EVENT_NOT, | 
					
						
							|  |  |  | 	G2D_EVENT_NONSTOP, | 
					
						
							|  |  |  | 	G2D_EVENT_STOP,		/* not yet */ | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add userptr feature for g2d module
This patch adds userptr feautre for G2D module.
The userptr means user space address allocated by malloc().
And the purpose of this feature is to make G2D's dma able
to access the user space region.
To user this feature, user should flag G2D_BUF_USRPTR to
offset variable of struct drm_exynos_g2d_cmd and fill
struct drm_exynos_g2d_userptr with user space address
and size for it and then should set a pointer to
drm_exynos_g2d_userptr object to data variable of struct
drm_exynos_g2d_cmd. The last bit of offset variable is used
to check if the cmdlist's buffer type is userptr or not.
If userptr, the g2d driver gets user space address and size
and then gets pages through get_user_pages().
(another case is counted as gem handle)
Below is sample codes:
static void set_cmd(struct drm_exynos_g2d_cmd *cmd,
		unsigned long offset, unsigned long data)
{
	cmd->offset = offset;
	cmd->data = data;
}
static int solid_fill_test(int x, int y, unsigned long userptr)
{
	struct drm_exynos_g2d_cmd cmd_gem[5];
	struct drm_exynos_g2d_userptr g2d_userptr;
	unsigned int gem_nr = 0;
	...
	g2d_userptr.userptr = userptr;
	g2d_userptr.size = x * y * 4;
	set_cmd(&cmd_gem[gem_nr++], DST_BASE_ADDR_REG |
					G2D_BUF_USERPTR,
			(unsigned long)&g2d_userptr);
	...
}
int main(int argc, char **argv)
{
	unsigned long addr;
	...
	addr = malloc(x * y * 4);
	...
	solid_fill_test(x, y, addr);
	...
}
And next, the pages are mapped with iommu table and the device
address is set to cmdlist so that G2D's dma can access it.
As you may know, the pages from get_user_pages() are pinned.
In other words, they CAN NOT be migrated and also swapped out.
So the dma access would be safe.
But the use of userptr feature has performance overhead so
this patch also has memory pool to the userptr feature.
Please, assume that user sends cmdlist filled with userptr
and size every time to g2d driver, and the get_user_pages
funcion will be called every time.
The memory pool has maximum 64MB size and the userptr that
user had ever sent, is holded in the memory pool.
This meaning is that if the userptr from user is same as one
in the memory pool, device address to the userptr in the memory
pool is set to cmdlist.
And last, the pages from get_user_pages() will be freed once
user calls free() and the dma access is completed. Actually,
get_user_pages() takes 2 reference counts if the user process
has never accessed user region allocated by malloc(). Then, if
the user calls free(), the page reference count becomes 1 and
becomes 0 with put_page() call. And the reverse holds as well.
This means how the pages backed are used by dma and freed.
This patch is based on "drm/exynos: add iommu support for g2d",
	https://patchwork.kernel.org/patch/1629481/
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-11-04 05:48:52 -08:00
										 |  |  | struct drm_exynos_g2d_userptr { | 
					
						
							|  |  |  | 	unsigned long userptr; | 
					
						
							|  |  |  | 	unsigned long size; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | struct drm_exynos_g2d_set_cmdlist { | 
					
						
							|  |  |  | 	__u64					cmd; | 
					
						
							| 
									
										
											  
											
												drm/exynos: add userptr feature for g2d module
This patch adds userptr feautre for G2D module.
The userptr means user space address allocated by malloc().
And the purpose of this feature is to make G2D's dma able
to access the user space region.
To user this feature, user should flag G2D_BUF_USRPTR to
offset variable of struct drm_exynos_g2d_cmd and fill
struct drm_exynos_g2d_userptr with user space address
and size for it and then should set a pointer to
drm_exynos_g2d_userptr object to data variable of struct
drm_exynos_g2d_cmd. The last bit of offset variable is used
to check if the cmdlist's buffer type is userptr or not.
If userptr, the g2d driver gets user space address and size
and then gets pages through get_user_pages().
(another case is counted as gem handle)
Below is sample codes:
static void set_cmd(struct drm_exynos_g2d_cmd *cmd,
		unsigned long offset, unsigned long data)
{
	cmd->offset = offset;
	cmd->data = data;
}
static int solid_fill_test(int x, int y, unsigned long userptr)
{
	struct drm_exynos_g2d_cmd cmd_gem[5];
	struct drm_exynos_g2d_userptr g2d_userptr;
	unsigned int gem_nr = 0;
	...
	g2d_userptr.userptr = userptr;
	g2d_userptr.size = x * y * 4;
	set_cmd(&cmd_gem[gem_nr++], DST_BASE_ADDR_REG |
					G2D_BUF_USERPTR,
			(unsigned long)&g2d_userptr);
	...
}
int main(int argc, char **argv)
{
	unsigned long addr;
	...
	addr = malloc(x * y * 4);
	...
	solid_fill_test(x, y, addr);
	...
}
And next, the pages are mapped with iommu table and the device
address is set to cmdlist so that G2D's dma can access it.
As you may know, the pages from get_user_pages() are pinned.
In other words, they CAN NOT be migrated and also swapped out.
So the dma access would be safe.
But the use of userptr feature has performance overhead so
this patch also has memory pool to the userptr feature.
Please, assume that user sends cmdlist filled with userptr
and size every time to g2d driver, and the get_user_pages
funcion will be called every time.
The memory pool has maximum 64MB size and the userptr that
user had ever sent, is holded in the memory pool.
This meaning is that if the userptr from user is same as one
in the memory pool, device address to the userptr in the memory
pool is set to cmdlist.
And last, the pages from get_user_pages() will be freed once
user calls free() and the dma access is completed. Actually,
get_user_pages() takes 2 reference counts if the user process
has never accessed user region allocated by malloc(). Then, if
the user calls free(), the page reference count becomes 1 and
becomes 0 with put_page() call. And the reverse holds as well.
This means how the pages backed are used by dma and freed.
This patch is based on "drm/exynos: add iommu support for g2d",
	https://patchwork.kernel.org/patch/1629481/
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-11-04 05:48:52 -08:00
										 |  |  | 	__u64					cmd_buf; | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | 	__u32					cmd_nr; | 
					
						
							| 
									
										
											  
											
												drm/exynos: add userptr feature for g2d module
This patch adds userptr feautre for G2D module.
The userptr means user space address allocated by malloc().
And the purpose of this feature is to make G2D's dma able
to access the user space region.
To user this feature, user should flag G2D_BUF_USRPTR to
offset variable of struct drm_exynos_g2d_cmd and fill
struct drm_exynos_g2d_userptr with user space address
and size for it and then should set a pointer to
drm_exynos_g2d_userptr object to data variable of struct
drm_exynos_g2d_cmd. The last bit of offset variable is used
to check if the cmdlist's buffer type is userptr or not.
If userptr, the g2d driver gets user space address and size
and then gets pages through get_user_pages().
(another case is counted as gem handle)
Below is sample codes:
static void set_cmd(struct drm_exynos_g2d_cmd *cmd,
		unsigned long offset, unsigned long data)
{
	cmd->offset = offset;
	cmd->data = data;
}
static int solid_fill_test(int x, int y, unsigned long userptr)
{
	struct drm_exynos_g2d_cmd cmd_gem[5];
	struct drm_exynos_g2d_userptr g2d_userptr;
	unsigned int gem_nr = 0;
	...
	g2d_userptr.userptr = userptr;
	g2d_userptr.size = x * y * 4;
	set_cmd(&cmd_gem[gem_nr++], DST_BASE_ADDR_REG |
					G2D_BUF_USERPTR,
			(unsigned long)&g2d_userptr);
	...
}
int main(int argc, char **argv)
{
	unsigned long addr;
	...
	addr = malloc(x * y * 4);
	...
	solid_fill_test(x, y, addr);
	...
}
And next, the pages are mapped with iommu table and the device
address is set to cmdlist so that G2D's dma can access it.
As you may know, the pages from get_user_pages() are pinned.
In other words, they CAN NOT be migrated and also swapped out.
So the dma access would be safe.
But the use of userptr feature has performance overhead so
this patch also has memory pool to the userptr feature.
Please, assume that user sends cmdlist filled with userptr
and size every time to g2d driver, and the get_user_pages
funcion will be called every time.
The memory pool has maximum 64MB size and the userptr that
user had ever sent, is holded in the memory pool.
This meaning is that if the userptr from user is same as one
in the memory pool, device address to the userptr in the memory
pool is set to cmdlist.
And last, the pages from get_user_pages() will be freed once
user calls free() and the dma access is completed. Actually,
get_user_pages() takes 2 reference counts if the user process
has never accessed user region allocated by malloc(). Then, if
the user calls free(), the page reference count becomes 1 and
becomes 0 with put_page() call. And the reverse holds as well.
This means how the pages backed are used by dma and freed.
This patch is based on "drm/exynos: add iommu support for g2d",
	https://patchwork.kernel.org/patch/1629481/
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-11-04 05:48:52 -08:00
										 |  |  | 	__u32					cmd_buf_nr; | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | 
 | 
					
						
							|  |  |  | 	/* for g2d event */ | 
					
						
							|  |  |  | 	__u64					event_type; | 
					
						
							|  |  |  | 	__u64					user_data; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_g2d_exec { | 
					
						
							|  |  |  | 	__u64					async; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | enum drm_exynos_ops_id { | 
					
						
							|  |  |  | 	EXYNOS_DRM_OPS_SRC, | 
					
						
							|  |  |  | 	EXYNOS_DRM_OPS_DST, | 
					
						
							|  |  |  | 	EXYNOS_DRM_OPS_MAX, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_sz { | 
					
						
							|  |  |  | 	__u32	hsize; | 
					
						
							|  |  |  | 	__u32	vsize; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_pos { | 
					
						
							|  |  |  | 	__u32	x; | 
					
						
							|  |  |  | 	__u32	y; | 
					
						
							|  |  |  | 	__u32	w; | 
					
						
							|  |  |  | 	__u32	h; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_flip { | 
					
						
							|  |  |  | 	EXYNOS_DRM_FLIP_NONE = (0 << 0), | 
					
						
							|  |  |  | 	EXYNOS_DRM_FLIP_VERTICAL = (1 << 0), | 
					
						
							|  |  |  | 	EXYNOS_DRM_FLIP_HORIZONTAL = (1 << 1), | 
					
						
							| 
									
										
										
										
											2012-12-22 17:49:24 +09:00
										 |  |  | 	EXYNOS_DRM_FLIP_BOTH = EXYNOS_DRM_FLIP_VERTICAL | | 
					
						
							|  |  |  | 			EXYNOS_DRM_FLIP_HORIZONTAL, | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_degree { | 
					
						
							|  |  |  | 	EXYNOS_DRM_DEGREE_0, | 
					
						
							|  |  |  | 	EXYNOS_DRM_DEGREE_90, | 
					
						
							|  |  |  | 	EXYNOS_DRM_DEGREE_180, | 
					
						
							|  |  |  | 	EXYNOS_DRM_DEGREE_270, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_planer { | 
					
						
							|  |  |  | 	EXYNOS_DRM_PLANAR_Y, | 
					
						
							|  |  |  | 	EXYNOS_DRM_PLANAR_CB, | 
					
						
							|  |  |  | 	EXYNOS_DRM_PLANAR_CR, | 
					
						
							|  |  |  | 	EXYNOS_DRM_PLANAR_MAX, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for ipp supported property list. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @version: version of this structure. | 
					
						
							|  |  |  |  * @ipp_id: id of ipp driver. | 
					
						
							|  |  |  |  * @count: count of ipp driver. | 
					
						
							|  |  |  |  * @writeback: flag of writeback supporting. | 
					
						
							|  |  |  |  * @flip: flag of flip supporting. | 
					
						
							|  |  |  |  * @degree: flag of degree information. | 
					
						
							|  |  |  |  * @csc: flag of csc supporting. | 
					
						
							|  |  |  |  * @crop: flag of crop supporting. | 
					
						
							|  |  |  |  * @scale: flag of scale supporting. | 
					
						
							|  |  |  |  * @refresh_min: min hz of refresh. | 
					
						
							|  |  |  |  * @refresh_max: max hz of refresh. | 
					
						
							|  |  |  |  * @crop_min: crop min resolution. | 
					
						
							|  |  |  |  * @crop_max: crop max resolution. | 
					
						
							|  |  |  |  * @scale_min: scale min resolution. | 
					
						
							|  |  |  |  * @scale_max: scale max resolution. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_ipp_prop_list { | 
					
						
							|  |  |  | 	__u32	version; | 
					
						
							|  |  |  | 	__u32	ipp_id; | 
					
						
							|  |  |  | 	__u32	count; | 
					
						
							|  |  |  | 	__u32	writeback; | 
					
						
							|  |  |  | 	__u32	flip; | 
					
						
							|  |  |  | 	__u32	degree; | 
					
						
							|  |  |  | 	__u32	csc; | 
					
						
							|  |  |  | 	__u32	crop; | 
					
						
							|  |  |  | 	__u32	scale; | 
					
						
							|  |  |  | 	__u32	refresh_min; | 
					
						
							|  |  |  | 	__u32	refresh_max; | 
					
						
							|  |  |  | 	__u32	reserved; | 
					
						
							|  |  |  | 	struct drm_exynos_sz	crop_min; | 
					
						
							|  |  |  | 	struct drm_exynos_sz	crop_max; | 
					
						
							|  |  |  | 	struct drm_exynos_sz	scale_min; | 
					
						
							|  |  |  | 	struct drm_exynos_sz	scale_max; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for ipp config. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @ops_id: property of operation directions. | 
					
						
							|  |  |  |  * @flip: property of mirror, flip. | 
					
						
							|  |  |  |  * @degree: property of rotation degree. | 
					
						
							|  |  |  |  * @fmt: property of image format. | 
					
						
							|  |  |  |  * @sz: property of image size. | 
					
						
							|  |  |  |  * @pos: property of image position(src-cropped,dst-scaler). | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_ipp_config { | 
					
						
							|  |  |  | 	enum drm_exynos_ops_id ops_id; | 
					
						
							|  |  |  | 	enum drm_exynos_flip	flip; | 
					
						
							|  |  |  | 	enum drm_exynos_degree	degree; | 
					
						
							|  |  |  | 	__u32	fmt; | 
					
						
							|  |  |  | 	struct drm_exynos_sz	sz; | 
					
						
							|  |  |  | 	struct drm_exynos_pos	pos; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_ipp_cmd { | 
					
						
							|  |  |  | 	IPP_CMD_NONE, | 
					
						
							|  |  |  | 	IPP_CMD_M2M, | 
					
						
							|  |  |  | 	IPP_CMD_WB, | 
					
						
							|  |  |  | 	IPP_CMD_OUTPUT, | 
					
						
							|  |  |  | 	IPP_CMD_MAX, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for ipp property. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @config: source, destination config. | 
					
						
							|  |  |  |  * @cmd: definition of command. | 
					
						
							|  |  |  |  * @ipp_id: id of ipp driver. | 
					
						
							|  |  |  |  * @prop_id: id of property. | 
					
						
							|  |  |  |  * @refresh_rate: refresh rate. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_ipp_property { | 
					
						
							|  |  |  | 	struct drm_exynos_ipp_config config[EXYNOS_DRM_OPS_MAX]; | 
					
						
							|  |  |  | 	enum drm_exynos_ipp_cmd	cmd; | 
					
						
							|  |  |  | 	__u32	ipp_id; | 
					
						
							|  |  |  | 	__u32	prop_id; | 
					
						
							|  |  |  | 	__u32	refresh_rate; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_ipp_buf_type { | 
					
						
							|  |  |  | 	IPP_BUF_ENQUEUE, | 
					
						
							|  |  |  | 	IPP_BUF_DEQUEUE, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for ipp buffer operations. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @ops_id: operation directions. | 
					
						
							|  |  |  |  * @buf_type: definition of buffer. | 
					
						
							|  |  |  |  * @prop_id: id of property. | 
					
						
							|  |  |  |  * @buf_id: id of buffer. | 
					
						
							|  |  |  |  * @handle: Y, Cb, Cr each planar handle. | 
					
						
							|  |  |  |  * @user_data: user data. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_ipp_queue_buf { | 
					
						
							|  |  |  | 	enum drm_exynos_ops_id	ops_id; | 
					
						
							|  |  |  | 	enum drm_exynos_ipp_buf_type	buf_type; | 
					
						
							|  |  |  | 	__u32	prop_id; | 
					
						
							|  |  |  | 	__u32	buf_id; | 
					
						
							|  |  |  | 	__u32	handle[EXYNOS_DRM_PLANAR_MAX]; | 
					
						
							|  |  |  | 	__u32	reserved; | 
					
						
							|  |  |  | 	__u64	user_data; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | enum drm_exynos_ipp_ctrl { | 
					
						
							|  |  |  | 	IPP_CTRL_PLAY, | 
					
						
							|  |  |  | 	IPP_CTRL_STOP, | 
					
						
							|  |  |  | 	IPP_CTRL_PAUSE, | 
					
						
							|  |  |  | 	IPP_CTRL_RESUME, | 
					
						
							|  |  |  | 	IPP_CTRL_MAX, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /**
 | 
					
						
							|  |  |  |  * A structure for ipp start/stop operations. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * @prop_id: id of property. | 
					
						
							|  |  |  |  * @ctrl: definition of control. | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | struct drm_exynos_ipp_cmd_ctrl { | 
					
						
							|  |  |  | 	__u32	prop_id; | 
					
						
							|  |  |  | 	enum drm_exynos_ipp_ctrl	ctrl; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | #define DRM_EXYNOS_GEM_CREATE		0x00
 | 
					
						
							|  |  |  | /* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */ | 
					
						
							|  |  |  | #define DRM_EXYNOS_GEM_GET		0x04
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_VIDI_CONNECTION	0x07
 | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | /* G2D */ | 
					
						
							|  |  |  | #define DRM_EXYNOS_G2D_GET_VER		0x20
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_G2D_SET_CMDLIST	0x21
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_G2D_EXEC		0x22
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | /* IPP - Image Post Processing */ | 
					
						
							|  |  |  | #define DRM_EXYNOS_IPP_GET_PROPERTY	0x30
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_IPP_SET_PROPERTY	0x31
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_IPP_QUEUE_BUF	0x32
 | 
					
						
							|  |  |  | #define DRM_EXYNOS_IPP_CMD_CTRL	0x33
 | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | #define DRM_IOCTL_EXYNOS_GEM_CREATE		DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_GEM_GET	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_GEM_GET,	struct drm_exynos_gem_info) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_VIDI_CONNECTION	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection) | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_G2D_GET_VER		DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_G2D_GET_VER, struct drm_exynos_g2d_get_ver) | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_G2D_SET_CMDLIST	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_G2D_SET_CMDLIST, struct drm_exynos_g2d_set_cmdlist) | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_G2D_EXEC		DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_G2D_EXEC, struct drm_exynos_g2d_exec) | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | #define DRM_IOCTL_EXYNOS_IPP_GET_PROPERTY	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_IPP_GET_PROPERTY, struct drm_exynos_ipp_prop_list) | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_IPP_SET_PROPERTY	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_IPP_SET_PROPERTY, struct drm_exynos_ipp_property) | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_IPP_QUEUE_BUF	DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_IPP_QUEUE_BUF, struct drm_exynos_ipp_queue_buf) | 
					
						
							|  |  |  | #define DRM_IOCTL_EXYNOS_IPP_CMD_CTRL		DRM_IOWR(DRM_COMMAND_BASE + \
 | 
					
						
							|  |  |  | 		DRM_EXYNOS_IPP_CMD_CTRL, struct drm_exynos_ipp_cmd_ctrl) | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | /* EXYNOS specific events */ | 
					
						
							|  |  |  | #define DRM_EXYNOS_G2D_EVENT		0x80000000
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | #define DRM_EXYNOS_IPP_EVENT		0x80000001
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | 
 | 
					
						
							|  |  |  | struct drm_exynos_g2d_event { | 
					
						
							|  |  |  | 	struct drm_event	base; | 
					
						
							|  |  |  | 	__u64			user_data; | 
					
						
							|  |  |  | 	__u32			tv_sec; | 
					
						
							|  |  |  | 	__u32			tv_usec; | 
					
						
							|  |  |  | 	__u32			cmdlist_no; | 
					
						
							|  |  |  | 	__u32			reserved; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
											  
											
												drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
  . get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
  . set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
  . enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
  . play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
  . a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Changelog v1 ~ v5:
- added comments, code fixups and cleanups.
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com>
Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
											
										 
											2012-12-14 18:10:31 +09:00
										 |  |  | struct drm_exynos_ipp_event { | 
					
						
							|  |  |  | 	struct drm_event	base; | 
					
						
							|  |  |  | 	__u64			user_data; | 
					
						
							|  |  |  | 	__u32			tv_sec; | 
					
						
							|  |  |  | 	__u32			tv_usec; | 
					
						
							|  |  |  | 	__u32			prop_id; | 
					
						
							|  |  |  | 	__u32			reserved; | 
					
						
							|  |  |  | 	__u32			buf_id[EXYNOS_DRM_OPS_MAX]; | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2012-10-04 18:21:50 +01:00
										 |  |  | #endif /* _UAPI_EXYNOS_DRM_H_ */
 |