device.c File Reference

Linux libmetal device operations. More...

#include <metal/device.h>
#include <metal/sys.h>
#include <metal/utilities.h>
#include <metal/irq.h>
#include <stdint.h>
#include <stdbool.h>
#include <dirent.h>
#include "irq.h"

Data Structures
struct	linux_driver
struct	linux_bus
struct	linux_device
struct	metal_uio_map_info

Macros
#define	MAX_DRIVERS   64
#define	METAL_UIO_CLASS_PATH   "/sys/class/uio"
#define	for_each_linux_bus(lbus)
#define	for_each_linux_driver(lbus, ldrv)

Functions
static struct linux_bus *	to_linux_bus (struct metal_bus *bus)
static struct linux_device *	to_linux_device (struct metal_device *device)
static bool	metal_linux_is_uio_bus (const struct linux_bus *lbus)
static int	metal_linux_read_first_line (const char *path, char *output, size_t output_len)
static int	metal_uio_read_map_attr (struct linux_device *ldev, unsigned int index, const char *name, unsigned long *value)
static int	metal_uio_read_str_attr (const char *path, char *value, size_t len)
static int	metal_linux_uio_validate_offset (const char *dev_name, unsigned long offset)
static int	metal_linux_uio_map_info (struct metal_uio_map_info *info)
static int	metal_uio_find_device_by_name (const char *uio_name, struct linux_device *ldev)
static int	metal_uio_dev_bind (struct linux_device *ldev, struct linux_driver *ldrv)
static int	metal_uio_populate (struct linux_bus *lbus, struct linux_device *ldev)
static void	metal_uio_dev_close (struct linux_bus *lbus, struct linux_device *ldev)
static int	metal_uio_dev_open (struct linux_bus *lbus, struct linux_device *ldev)
static int	metal_uio_class_dev_open (struct linux_bus *lbus, struct linux_device *ldev)
static void	metal_uio_dev_irq_ack (struct linux_bus *lbus, struct linux_device *ldev, int irq)
static int	metal_uio_dev_dma_map (struct linux_bus *lbus, struct linux_device *ldev, uint32_t dir, struct metal_sg *sg_in, int nents_in, struct metal_sg *sg_out)
static void	metal_uio_dev_dma_unmap (struct linux_bus *lbus, struct linux_device *ldev, uint32_t dir, struct metal_sg *sg, int nents)
static int	metal_linux_dev_open (struct metal_bus *bus, const char *dev_name, struct metal_device **device)
static void	metal_linux_dev_close (struct metal_bus *bus, struct metal_device *device)
static void	metal_linux_bus_close (struct metal_bus *bus)
static void	metal_linux_dev_irq_ack (struct metal_bus *bus, struct metal_device *device, int irq)
static int	metal_linux_dev_dma_map (struct metal_bus *bus, struct metal_device *device, uint32_t dir, struct metal_sg *sg_in, int nents_in, struct metal_sg *sg_out)
static void	metal_linux_dev_dma_unmap (struct metal_bus *bus, struct metal_device *device, uint32_t dir, struct metal_sg *sg, int nents)
static int	metal_linux_register_bus (struct linux_bus *lbus)
static int	metal_linux_probe_driver (struct linux_bus *lbus, struct linux_driver *ldrv)
static int	metal_linux_probe_bus (struct linux_bus *lbus)
int	metal_linux_bus_init (void)
void	metal_linux_bus_finish (void)
int	metal_generic_dev_sys_open (struct metal_device *dev)
int	metal_linux_get_device_property (struct metal_device *device, const char *property_name, void *output, int len)

Variables
static struct linux_bus	linux_bus []
static const struct metal_bus_ops	metal_linux_bus_ops

Detailed Description

Linux libmetal device operations.

Macro Definition Documentation

for_each_linux_bus

#define for_each_linux_bus

(

lbus

)

Value:

        for ((lbus) = linux_bus; (lbus)->bus_name; (lbus)++)

for_each_linux_driver

#define for_each_linux_driver	(		lbus,
			ldrv )

Value:

        for ((ldrv) = lbus->drivers; (ldrv)->drv_name; (ldrv)++)

MAX_DRIVERS

#define MAX_DRIVERS   64

METAL_UIO_CLASS_PATH

#define METAL_UIO_CLASS_PATH   "/sys/class/uio"

Function Documentation

metal_generic_dev_sys_open()

int metal_generic_dev_sys_open

(

struct metal_device *

dev

)

metal_linux_bus_close()

void metal_linux_bus_close ( struct metal_bus * bus )

static

metal_linux_bus_finish()

void metal_linux_bus_finish

(

void

)

metal_linux_bus_init()

int metal_linux_bus_init

(

void

)

metal_linux_dev_close()

void metal_linux_dev_close ( struct metal_bus * bus, struct metal_device * device )

static

metal_linux_dev_dma_map()

int metal_linux_dev_dma_map ( struct metal_bus * bus, struct metal_device * device, uint32_t dir, struct metal_sg * sg_in, int nents_in, struct metal_sg * sg_out )

static

metal_linux_dev_dma_unmap()

void metal_linux_dev_dma_unmap ( struct metal_bus * bus, struct metal_device * device, uint32_t dir, struct metal_sg * sg, int nents )

static

metal_linux_dev_irq_ack()

void metal_linux_dev_irq_ack ( struct metal_bus * bus, struct metal_device * device, int irq )

static

metal_linux_dev_open()

int metal_linux_dev_open ( struct metal_bus * bus, const char * dev_name, struct metal_device ** device )

static

metal_linux_get_device_property()

int metal_linux_get_device_property	(	struct metal_device *	device,
		const char *	property_name,
		void *	output,
		int	len )

metal_linux_is_uio_bus()

bool metal_linux_is_uio_bus ( const struct linux_bus * lbus )

static

metal_linux_probe_bus()

int metal_linux_probe_bus ( struct linux_bus * lbus )

static

metal_linux_probe_driver()

int metal_linux_probe_driver ( struct linux_bus * lbus, struct linux_driver * ldrv )

static

metal_linux_read_first_line()

int metal_linux_read_first_line ( const char * path, char * output, size_t output_len )

static

metal_linux_register_bus()

int metal_linux_register_bus ( struct linux_bus * lbus )

static

metal_linux_uio_map_info()

int metal_linux_uio_map_info ( struct metal_uio_map_info * info )

static

metal_linux_uio_validate_offset()

int metal_linux_uio_validate_offset ( const char * dev_name, unsigned long offset )

static

metal_uio_class_dev_open()

int metal_uio_class_dev_open ( struct linux_bus * lbus, struct linux_device * ldev )

static

metal_uio_dev_bind()

int metal_uio_dev_bind ( struct linux_device * ldev, struct linux_driver * ldrv )

static

metal_uio_dev_close()

void metal_uio_dev_close ( struct linux_bus * lbus, struct linux_device * ldev )

static

metal_uio_dev_dma_map()

int metal_uio_dev_dma_map ( struct linux_bus * lbus, struct linux_device * ldev, uint32_t dir, struct metal_sg * sg_in, int nents_in, struct metal_sg * sg_out )

static

metal_uio_dev_dma_unmap()

void metal_uio_dev_dma_unmap ( struct linux_bus * lbus, struct linux_device * ldev, uint32_t dir, struct metal_sg * sg, int nents )

static

metal_uio_dev_irq_ack()

void metal_uio_dev_irq_ack ( struct linux_bus * lbus, struct linux_device * ldev, int irq )

static

metal_uio_dev_open()

int metal_uio_dev_open ( struct linux_bus * lbus, struct linux_device * ldev )

static

metal_uio_find_device_by_name()

int metal_uio_find_device_by_name ( const char * uio_name, struct linux_device * ldev )

static

metal_uio_populate()

int metal_uio_populate ( struct linux_bus * lbus, struct linux_device * ldev )

static

metal_uio_read_map_attr()

int metal_uio_read_map_attr ( struct linux_device * ldev, unsigned int index, const char * name, unsigned long * value )

static

metal_uio_read_str_attr()

int metal_uio_read_str_attr ( const char * path, char * value, size_t len )

static

to_linux_bus()

struct linux_bus * to_linux_bus ( struct metal_bus * bus )

static

to_linux_device()

struct linux_device * to_linux_device ( struct metal_device * device )

static

Variable Documentation

linux_bus

struct linux_bus linux_bus[]

static

metal_linux_bus_ops

const struct metal_bus_ops metal_linux_bus_ops

static

Initial value:

= {
        .bus_close      = metal_linux_bus_close,
        .dev_open       = metal_linux_dev_open,
        .dev_close      = metal_linux_dev_close,
        .dev_irq_ack    = metal_linux_dev_irq_ack,
        .dev_dma_map    = metal_linux_dev_dma_map,
        .dev_dma_unmap  = metal_linux_dev_dma_unmap,
}