uart2.h File Reference

#include <zrtos/vfs/module/uart/uart.h>
#include <zrtos/vfs/module/avr/uart/uart.h>

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Functions
	ISR (UART2_RECEIVE_INTERRUPT)
	ISR (UART2_TRANSMIT_INTERRUPT, ISR_NOBLOCK)
zrtos_error_t	zrtos_vfs_module_avr_uart2__on_mount (zrtos_vfs_dentry_t *thiz)
zrtos_error_t	zrtos_vfs_module_avr_uart2__on_umount (zrtos_vfs_dentry_t *thiz)
zrtos_error_t	zrtos_vfs_module_avr_uart2__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_uart2, ZRTOS_VFS_PLUGIN__0_ON_OPEN_DEFAULT() ZRTOS_VFS_PLUGIN__1_ON_CLOSE_DEFAULT() ZRTOS_VFS_PLUGIN__2_ON_MOUNT(zrtos_vfs_module_avr_uart2__on_mount) ZRTOS_VFS_PLUGIN__3_ON_UMOUNT(zrtos_vfs_module_avr_uart2__on_umount) ZRTOS_VFS_PLUGIN__4_ON_READ(zrtos_vfs_module_uart__on_read) ZRTOS_VFS_PLUGIN__5_ON_WRITE(zrtos_vfs_module_avr_uart2__on_write) ZRTOS_VFS_PLUGIN__6_ON_CAN_READ(zrtos_vfs_module_uart__on_can_read) ZRTOS_VFS_PLUGIN__7_ON_CAN_WRITE(zrtos_vfs_module_uart__on_can_write) ZRTOS_VFS_PLUGIN__8_ON_SEEK_DEFAULT() ZRTOS_VFS_PLUGIN__9_ON_IOCTL(zrtos_vfs_module_uart__on_ioctl))

Variables
zrtos_vfs_module_uart_inode_t *	zrtos_vfs_module_avr_uart2

Function Documentation

ISR() [1/2]

ISR

(

UART2_RECEIVE_INTERRUPT

)

Definition at line 18 of file uart2.h.

                            {
    zrtos_vfs_module_avr_uart__on_receive_interrupt(
         zrtos_vfs_module_avr_uart2
        ,UART2_DATA
        ,(
              (UART2_STATUS & (_BV(FE2)|_BV(DOR2)|_BV(UPE2))) == 0
            ? ZRTOS_ERROR__SUCCESS
            : ZRTOS_ERROR__IO
        )
    );
}

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ISR() [2/2]

ISR	(	UART2_TRANSMIT_INTERRUPT	,
		ISR_NOBLOCK
	)

Definition at line 30 of file uart2.h.

                                         {
    uint8_t tmp;
    if(zrtos_vfs_module_avr_uart__on_transmit_interrupt(
         zrtos_vfs_module_avr_uart2
        ,&tmp
    )){
        UART2_DATA = tmp;
    }else{
        UART2_CONTROL &= ~_BV(UART2_UDRIE);
    }
}

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zrtos_vfs_module_avr_uart2__on_mount()

zrtos_error_t zrtos_vfs_module_avr_uart2__on_mount

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 42 of file uart2.h.

                                                                            {
    uint16_t baudrate;
    zrtos_vfs_module_avr_uart2 = ZRTOS_CAST(
         zrtos_vfs_module_uart_inode_t*
        ,zrtos_vfs_dentry__get_inode_data(
            thiz
        )
    );

    baudrate = zrtos_vfs_module_avr_uart__baud_select(
         zrtos_vfs_module_avr_uart2->baudrate
    );

    //Set baud rate
    if(ZRTOS_VFS_MODULE_AVR_UART__IS_DOUBLE_SPEED(baudrate)){
        UART2_STATUS = _BV(U2X2);  //Enable 2x speed
        baudrate &= ~0x8000;
    }else{
        UART2_STATUS = 0;
        //UART2_STATUS &= ~_BV(U2X2);
    }
    UBRR2H = (uint8_t) (baudrate>>8);
    UBRR2L = (uint8_t) baudrate;

    /* Enable USART receiver and transmitter and receive complete interrupt */
    UART2_CONTROL = _BV(RXCIE2)|_BV(RXEN2)|_BV(TXEN2);
    //UART2_CONTROL = _BV(RXCIE2)|_BV(TXEN2);

    /* Set frame format: asynchronous, 8data, no parity, 1stop bit */
#ifdef URSEL2
    UCSR2C = _BV(URSEL2)|_BV(UCSZ21)|_BV(UCSZ20);
#else
    UCSR2C = _BV(UCSZ21)|_BV(UCSZ20);
#endif

    return ZRTOS_ERROR__SUCCESS;
}

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zrtos_vfs_module_avr_uart2__on_umount()

zrtos_error_t zrtos_vfs_module_avr_uart2__on_umount

(

zrtos_vfs_dentry_t *

thiz

)

Definition at line 80 of file uart2.h.

                                                                             {
    UART2_CONTROL &= ~_BV(UART2_UDRIE);
    return ZRTOS_ERROR__SUCCESS;
}

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zrtos_vfs_module_avr_uart2__on_write()

zrtos_error_t zrtos_vfs_module_avr_uart2__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 85 of file uart2.h.

 {
    zrtos_error_t ret = zrtos_vfs_module_uart__on_write(
         thiz
        ,path
        ,buf
        ,len
        ,offset
        ,out
    );
    if(zrtos_error__is_success(ret)){
        UART2_CONTROL |= _BV(UART2_UDRIE);
    }
    return ret;
}

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ZRTOS_VFS_PLUGIN__INIT()

ZRTOS_VFS_PLUGIN__INIT	(	avr_uart2	,
		ZRTOS_VFS_PLUGIN__0_ON_OPEN_DEFAULT() ZRTOS_VFS_PLUGIN__1_ON_CLOSE_DEFAULT() ZRTOS_VFS_PLUGIN__2_ON_MOUNT(zrtos_vfs_module_avr_uart2__on_mount) ZRTOS_VFS_PLUGIN__3_ON_UMOUNT(zrtos_vfs_module_avr_uart2__on_umount) ZRTOS_VFS_PLUGIN__4_ON_READ(zrtos_vfs_module_uart__on_read) ZRTOS_VFS_PLUGIN__5_ON_WRITE(zrtos_vfs_module_avr_uart2__on_write) ZRTOS_VFS_PLUGIN__6_ON_CAN_READ(zrtos_vfs_module_uart__on_can_read) ZRTOS_VFS_PLUGIN__7_ON_CAN_WRITE(zrtos_vfs_module_uart__on_can_write) ZRTOS_VFS_PLUGIN__8_ON_SEEK_DEFAULT() ZRTOS_VFS_PLUGIN__9_ON_IOCTL(zrtos_vfs_module_uart__on_ioctl)
	)

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Variable Documentation

zrtos_vfs_module_avr_uart2

zrtos_vfs_module_uart_inode_t* zrtos_vfs_module_avr_uart2

Definition at line 16 of file uart2.h.