/*
 * Порт УМП для TMS320F28335. Аппаратное представление данных C28x связывается с общим
 * регистровым протоколом; восьмибитные октеты линии нельзя приравнивать к размеру char
 * целевого компилятора.
 */

#include "ump_tms28335.h"
extern unsigned int ump_log_read(unsigned int address);
extern int ump_log_write(unsigned int address, unsigned int value);
static uint16_t read_word(void *context, uint16_t address)
{ (void)context; return (uint16_t)ump_log_read(address); }
static int write_word(void *context, uint16_t address, uint16_t value)
{ (void)context; return ump_log_write(address,value); }
unsigned ump_tms28335_prepare(unsigned fn, uint16_t a, uint16_t n,
    uint16_t *reply, unsigned *error)
{
    const ump_backend backend = {0,read_word,write_word};
    return ump_prepare(&backend,fn,a,n,1,reply,error);
}
size_t ump_tms28335_rtu(unsigned device, unsigned fn, uint16_t a,
    uint16_t n, ump_octet *reply, size_t capacity)
{
    const ump_backend backend = {0,read_word,write_word};
    return ump_rtu_response(&backend,device,fn,a,n,reply,capacity);
}
unsigned ump_tms28335_capture(unsigned fn, uint16_t a, uint16_t n,
    uint16_t *words, unsigned *error)
{
    const ump_backend backend = {0,read_word,write_word};
    return ump_prepare(&backend,fn,a,n,0,words,error);
}
unsigned ump_tms28335_fragment(const uint16_t *words, unsigned count, unsigned index,
    unsigned token, unsigned error, uint32_t *mdl, uint32_t *mdh)
{
    ump_octet frame[8];
    if (!mdl || !mdh || !ump_can_fragment(words,count,index,token,error,frame)) return 0;
    *mdl=((uint32_t)frame[0]<<24)|((uint32_t)frame[1]<<16)|(frame[2]<<8)|frame[3];
    *mdh=((uint32_t)frame[4]<<24)|((uint32_t)frame[5]<<16)|(frame[6]<<8)|frame[7];
    return 8;
}