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#include <stdlib.h>
#include <stdint.h>
#include "encoding.h"
#include "platform.h"
#include "eos.h"
#include "spi.h"
#include "net.h"
#include "spi_def.h"
#include "spi_dev.h"
#define SPI_DIV_DISP 16
#define SPI_DIV_CARD 16
#define SPI_DIV_CAM 16
#define SPI_CSID_DISP 2
#define SPI_CSID_CARD 0
#define SPI_CSPIN_CAM 23
static uint16_t spi_dev_div[EOS_DEV_MAX_DEV];
int eos_spi_dev_select(unsigned char dev) {
uint8_t spi_dev = eos_spi_dev();
int rv = EOS_ERR;
if (spi_dev) {
int rv;
rv = eos_spi_stop();
if (rv) return rv;
} else {
eos_net_stop();
}
switch (dev) {
case EOS_DEV_DISP:
rv = eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_DISP, 0);
break;
case EOS_DEV_CARD:
rv = eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_CARD, 0);
break;
case EOS_DEV_CAM:
rv = eos_spi_start(dev, spi_dev_div[dev-1], SPI_CSID_NONE, SPI_CSPIN_CAM);
break;
}
return rv;
}
int eos_spi_dev_deselect(void) {
int rv;
rv = eos_spi_stop();
if (rv) return rv;
eos_net_start();
return EOS_OK;
}
void eos_spi_dev_init(void) {
spi_dev_div[EOS_DEV_DISP - 1] = SPI_DIV_DISP;
spi_dev_div[EOS_DEV_CARD - 1] = SPI_DIV_CARD;
spi_dev_div[EOS_DEV_CAM - 1] = SPI_DIV_CAM;
GPIO_REG(GPIO_INPUT_EN) &= ~(1 << SPI_CSPIN_CAM);
GPIO_REG(GPIO_OUTPUT_EN) |= (1 << SPI_CSPIN_CAM);
GPIO_REG(GPIO_PULLUP_EN) &= ~(1 << SPI_CSPIN_CAM);
GPIO_REG(GPIO_OUTPUT_XOR) &= ~(1 << SPI_CSPIN_CAM);
GPIO_REG(GPIO_OUTPUT_VAL) |= (1 << SPI_CSPIN_CAM);
}
void eos_spi_dev_set_div(unsigned char dev, uint16_t div) {
spi_dev_div[dev-1] = div;
}
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