avr/spi/spi.h File Reference

#include <avr/io.h>
#include <avr/interrupt.h>
#include <zrtos/vfs_plugin.h>
#include <zrtos/vfs/module/spi/spi.h>

Include dependency graph for avr/spi/spi.h:

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Functions
void	zrtos_vfs_module_avr_spi__on_interrupt ()
	ISR (SPI_STC_vect, ISR_NOBLOCK)
zrtos_error_t	zrtos_vfs_module_avr_spi__on_mount (zrtos_vfs_dentry_t *thiz)
zrtos_error_t	zrtos_vfs_module_avr_spi__on_umount (zrtos_vfs_dentry_t *thiz)
zrtos_error_t	zrtos_vfs_module_avr_spi__on_write (zrtos_vfs_file_t *thiz, char *path, void *buf, size_t len, zrtos_vfs_offset_t offset, size_t *out)
	ZRTOS_VFS_PLUGIN__INIT (avr_spi, ZRTOS_VFS_PLUGIN__0_ON_OPEN(zrtos_vfs_module_spi__on_open) ZRTOS_VFS_PLUGIN__1_ON_CLOSE(zrtos_vfs_module_spi__on_close) ZRTOS_VFS_PLUGIN__2_ON_MOUNT(zrtos_vfs_module_avr_spi__on_mount) ZRTOS_VFS_PLUGIN__3_ON_UMOUNT(zrtos_vfs_module_avr_spi__on_umount) ZRTOS_VFS_PLUGIN__4_ON_READ(zrtos_vfs_module_spi__on_read) ZRTOS_VFS_PLUGIN__5_ON_WRITE(zrtos_vfs_module_avr_spi__on_write) ZRTOS_VFS_PLUGIN__6_ON_CAN_READ(zrtos_vfs_module_spi__on_can_read) ZRTOS_VFS_PLUGIN__7_ON_CAN_WRITE(zrtos_vfs_module_spi__on_can_write) ZRTOS_VFS_PLUGIN__8_ON_SEEK_DEFAULT() ZRTOS_VFS_PLUGIN__9_ON_IOCTL(zrtos_vfs_module_spi__on_ioctl))

Variables
zrtos_vfs_module_spi_inode_t *	zrtos_vfs_module_avr_spi__ctx
bool	zrtos_vfs_module_avr_spi__isr_complete = true

Function Documentation

ISR()

ISR	(	SPI_STC_vect	,
		ISR_NOBLOCK
	)

Definition at line 41 of file avr/spi/spi.h.

                             {
    zrtos_vfs_module_avr_spi__on_interrupt();
}

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zrtos_vfs_module_avr_spi__on_interrupt()

void zrtos_vfs_module_avr_spi__on_interrupt

(

)

Definition at line 22 of file avr/spi/spi.h.

                                             {
    uint8_t data_in = SPDR;
    uint8_t data_out;
    zrtos_error_t err = zrtos_vfs_module_spi__transfer(
         zrtos_vfs_module_avr_spi__ctx
        ,(void*)&data_in
        ,(void*)&data_out
        ,sizeof(uint8_t)
    );

    if((zrtos_vfs_module_avr_spi__isr_complete = zrtos_error__is_error(err))){
        SPCR = 0;
    }else{
        SPCR = zrtos_vfs_module_avr_spi__ctx->last->control;
        SPDR = data_out;
    }

}

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zrtos_vfs_module_avr_spi__on_mount()

zrtos_error_t zrtos_vfs_module_avr_spi__on_mount

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 45 of file avr/spi/spi.h.

                                                                          {
    zrtos_vfs_module_avr_spi__ctx = ZRTOS_CAST(
         zrtos_vfs_module_spi_inode_t*
        ,zrtos_vfs_dentry__get_inode_data(thiz)
    );
    return ZRTOS_ERROR__SUCCESS;
}

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zrtos_vfs_module_avr_spi__on_umount()

zrtos_error_t zrtos_vfs_module_avr_spi__on_umount

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 53 of file avr/spi/spi.h.

                                                                           {
    zrtos_vfs_module_avr_spi__ctx = 0;
    return ZRTOS_ERROR__SUCCESS;
}

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zrtos_vfs_module_avr_spi__on_write()

zrtos_error_t zrtos_vfs_module_avr_spi__on_write	(	zrtos_vfs_file_t *	thiz,
		char *	path,
		void *	buf,
		size_t	len,
		zrtos_vfs_offset_t	offset,
		size_t *	out
	)

Definition at line 58 of file avr/spi/spi.h.

 {
    zrtos_vfs_module_spi_file_t *file_data = ZRTOS_CAST(
         zrtos_vfs_module_spi_file_t*
        ,zrtos_vfs_file__get_data(thiz)
    );
    zrtos_error_t ret = zrtos_vfs_module_spi__on_write(
         thiz
        ,path
        ,buf
        ,len
        ,offset
        ,out
    );

    ZRTOS_ARCH__DISABLE_INTERRUPTS();
    if(zrtos_error__is_success(ret)
    && file_data->control & ZRTOS_VFS_MODULE_SPI_CONTROL__MODE_MASTER
    && zrtos_vfs_module_avr_spi__isr_complete){
        zrtos_vfs_module_avr_spi__isr_complete = false;
        ZRTOS_ARCH__ENABLE_INTERRUPTS();

        zrtos_vfs_module_avr_spi__on_interrupt();
    }else{
        ZRTOS_ARCH__ENABLE_INTERRUPTS();
    }
    
    return ret;
}

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ZRTOS_VFS_PLUGIN__INIT()

ZRTOS_VFS_PLUGIN__INIT	(	avr_spi	,
		ZRTOS_VFS_PLUGIN__0_ON_OPEN(zrtos_vfs_module_spi__on_open) ZRTOS_VFS_PLUGIN__1_ON_CLOSE(zrtos_vfs_module_spi__on_close) ZRTOS_VFS_PLUGIN__2_ON_MOUNT(zrtos_vfs_module_avr_spi__on_mount) ZRTOS_VFS_PLUGIN__3_ON_UMOUNT(zrtos_vfs_module_avr_spi__on_umount) ZRTOS_VFS_PLUGIN__4_ON_READ(zrtos_vfs_module_spi__on_read) ZRTOS_VFS_PLUGIN__5_ON_WRITE(zrtos_vfs_module_avr_spi__on_write) ZRTOS_VFS_PLUGIN__6_ON_CAN_READ(zrtos_vfs_module_spi__on_can_read) ZRTOS_VFS_PLUGIN__7_ON_CAN_WRITE(zrtos_vfs_module_spi__on_can_write) ZRTOS_VFS_PLUGIN__8_ON_SEEK_DEFAULT() ZRTOS_VFS_PLUGIN__9_ON_IOCTL(zrtos_vfs_module_spi__on_ioctl)
	)

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Variable Documentation

zrtos_vfs_module_avr_spi__ctx

zrtos_vfs_module_spi_inode_t* zrtos_vfs_module_avr_spi__ctx

Definition at line 19 of file avr/spi/spi.h.

zrtos_vfs_module_avr_spi__isr_complete

bool zrtos_vfs_module_avr_spi__isr_complete = true

Definition at line 20 of file avr/spi/spi.h.