drivers/staging/media/atomisp/pci/hive_isp_css_common/host/isp_private.h

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/hive_isp_css_common/host/isp_private.h

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/hive_isp_css_common/host/isp_private.h
Extension
.h
Size
3588 bytes
Lines
153
Domain
Driver Families
Bucket
drivers/staging
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __ISP_PRIVATE_H_INCLUDED__
#define __ISP_PRIVATE_H_INCLUDED__

#ifdef HRT_MEMORY_ACCESS
#include <hrt/api.h>
#endif

#include "isp_public.h"

#include "device_access.h"

#include "assert_support.h"
#include "type_support.h"

STORAGE_CLASS_ISP_C void isp_ctrl_store(
    const isp_ID_t		ID,
    const unsigned int	reg,
    const hrt_data		value)
{
	assert(ID < N_ISP_ID);
	assert(ISP_CTRL_BASE[ID] != (hrt_address) - 1);
#if !defined(HRT_MEMORY_ACCESS)
	ia_css_device_store_uint32(ISP_CTRL_BASE[ID] + reg * sizeof(hrt_data), value);
#else
	hrt_master_port_store_32(ISP_CTRL_BASE[ID] + reg * sizeof(hrt_data), value);
#endif
	return;
}

STORAGE_CLASS_ISP_C hrt_data isp_ctrl_load(
    const isp_ID_t		ID,
    const unsigned int	reg)
{
	assert(ID < N_ISP_ID);
	assert(ISP_CTRL_BASE[ID] != (hrt_address) - 1);
#if !defined(HRT_MEMORY_ACCESS)
	return ia_css_device_load_uint32(ISP_CTRL_BASE[ID] + reg * sizeof(hrt_data));
#else
	return hrt_master_port_uload_32(ISP_CTRL_BASE[ID] + reg * sizeof(hrt_data));
#endif
}

STORAGE_CLASS_ISP_C bool isp_ctrl_getbit(
    const isp_ID_t		ID,
    const unsigned int	reg,
    const unsigned int	bit)
{
	hrt_data val = isp_ctrl_load(ID, reg);

	return (val & (1UL << bit)) != 0;
}

STORAGE_CLASS_ISP_C void isp_ctrl_setbit(
    const isp_ID_t		ID,
    const unsigned int	reg,
    const unsigned int	bit)
{
	hrt_data	data = isp_ctrl_load(ID, reg);

	isp_ctrl_store(ID, reg, (data | (1UL << bit)));
	return;
}

STORAGE_CLASS_ISP_C void isp_ctrl_clearbit(
    const isp_ID_t		ID,
    const unsigned int	reg,
    const unsigned int	bit)
{
	hrt_data	data = isp_ctrl_load(ID, reg);

	isp_ctrl_store(ID, reg, (data & ~(1UL << bit)));
	return;
}

STORAGE_CLASS_ISP_C void isp_dmem_store(
    const isp_ID_t		ID,
    unsigned int		addr,
    const void		*data,
    const size_t		size)
{
	assert(ID < N_ISP_ID);
	assert(ISP_DMEM_BASE[ID] != (hrt_address) - 1);
#if !defined(HRT_MEMORY_ACCESS)
	ia_css_device_store(ISP_DMEM_BASE[ID] + addr, data, size);
#else
	hrt_master_port_store(ISP_DMEM_BASE[ID] + addr, data, size);
#endif
	return;
}

Annotation

Implementation Notes