arch/mips/include/asm/mach-generic/floppy.h

Source file repositories/reference/linux-study-clean/arch/mips/include/asm/mach-generic/floppy.h

File Facts

System
Linux kernel
Corpus path
arch/mips/include/asm/mach-generic/floppy.h
Extension
.h
Size
2503 bytes
Lines
134
Domain
Architecture Layer
Bucket
arch/mips
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __ASM_MACH_GENERIC_FLOPPY_H
#define __ASM_MACH_GENERIC_FLOPPY_H

#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/sched.h>
#include <linux/linkage.h>
#include <linux/types.h>
#include <linux/mm.h>

#include <asm/bootinfo.h>
#include <asm/cachectl.h>
#include <asm/dma.h>
#include <asm/floppy.h>
#include <asm/io.h>
#include <asm/irq.h>

/*
 * How to access the FDC's registers.
 */
static inline unsigned char fd_inb(unsigned int base, unsigned int reg)
{
	return inb_p(base + reg);
}

static inline void fd_outb(unsigned char value, unsigned int base, unsigned int reg)
{
	outb_p(value, base + reg);
}

/*
 * How to access the floppy DMA functions.
 */
static inline void fd_enable_dma(void)
{
	enable_dma(FLOPPY_DMA);
}

static inline void fd_disable_dma(void)
{
	disable_dma(FLOPPY_DMA);
}

static inline int fd_request_dma(void)
{
	return request_dma(FLOPPY_DMA, "floppy");
}

static inline void fd_free_dma(void)
{
	free_dma(FLOPPY_DMA);
}

static inline void fd_clear_dma_ff(void)
{
	clear_dma_ff(FLOPPY_DMA);
}

static inline void fd_set_dma_mode(char mode)
{
	set_dma_mode(FLOPPY_DMA, mode);
}

static inline void fd_set_dma_addr(char *addr)
{
	set_dma_addr(FLOPPY_DMA, (unsigned long) addr);
}

static inline void fd_set_dma_count(unsigned int count)
{
	set_dma_count(FLOPPY_DMA, count);
}

static inline int fd_get_dma_residue(void)
{
	return get_dma_residue(FLOPPY_DMA);
}

static inline void fd_enable_irq(void)
{
	enable_irq(FLOPPY_IRQ);
}

static inline void fd_disable_irq(void)
{
	disable_irq(FLOPPY_IRQ);
}

static inline int fd_request_irq(void)
{

Annotation

Implementation Notes