drivers/staging/media/atomisp/pci/css_2401_system/host/isys_dma_private.h
Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/css_2401_system/host/isys_dma_private.h
File Facts
- System
- Linux kernel
- Corpus path
drivers/staging/media/atomisp/pci/css_2401_system/host/isys_dma_private.h- Extension
.h- Size
- 1237 bytes
- Lines
- 50
- 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.
- 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
isys_dma_public.hdevice_access.hassert_support.hdma.hdma_v2_defs.hprint_support.h
Detected Declarations
function Copyrightfunction isys2401_dma_reg_load
Annotated Snippet
#ifndef __ISYS_DMA_PRIVATE_H_INCLUDED__
#define __ISYS_DMA_PRIVATE_H_INCLUDED__
#include "isys_dma_public.h"
#include "device_access.h"
#include "assert_support.h"
#include "dma.h"
#include "dma_v2_defs.h"
#include "print_support.h"
void isys2401_dma_reg_store(const isys2401_dma_ID_t dma_id,
const unsigned int reg,
const hrt_data value)
{
unsigned int reg_loc;
assert(dma_id < N_ISYS2401_DMA_ID);
assert(ISYS2401_DMA_BASE[dma_id] != (hrt_address) - 1);
reg_loc = ISYS2401_DMA_BASE[dma_id] + (reg * sizeof(hrt_data));
ia_css_device_store_uint32(reg_loc, value);
}
hrt_data isys2401_dma_reg_load(const isys2401_dma_ID_t dma_id,
const unsigned int reg)
{
unsigned int reg_loc;
hrt_data value;
assert(dma_id < N_ISYS2401_DMA_ID);
assert(ISYS2401_DMA_BASE[dma_id] != (hrt_address) - 1);
reg_loc = ISYS2401_DMA_BASE[dma_id] + (reg * sizeof(hrt_data));
value = ia_css_device_load_uint32(reg_loc);
ia_css_print("isys dma load from addr(0x%x) val(%u)\n", reg_loc,
(unsigned int)value);
return value;
}
#endif /* __ISYS_DMA_PRIVATE_H_INCLUDED__ */
Annotation
- Immediate include surface: `isys_dma_public.h`, `device_access.h`, `assert_support.h`, `dma.h`, `dma_v2_defs.h`, `print_support.h`.
- Detected declarations: `function Copyright`, `function isys2401_dma_reg_load`.
- Atlas domain: Driver Families / drivers/staging.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.