Files
microchip-application-bmd38…/max14802.c
T
Roy_01 b561b86f3b feat: 1. add a 1ms delay before and after controlling the ADPT GPIO in max14802_write
2. dev mode commands (except those already available to users) start with 3xxxFFFF
2025-03-28 09:45:14 +08:00

191 lines
4.0 KiB
C

#include "max14802.h"
#include "elite_board.h"
#include "nrf_delay.h"
#include "nrf_gpio.h"
#include "string.h"
#pragma GCC optimize("O2")
#if (DEF_MAX14802_ENABLED)
static sw_t m_sw = { .val = UINT64_MAX };
#define EXCLUDE_IO_ENABLE 1
#define EXCLUDE_IO_DISABLE 0
static const uint32_t exclude_io[64] = {
ADPT0_S1_PIN,
ADPT0_S2_PIN,
ADPT0_S3_PIN,
ADPT0_S4_PIN,
ADPT1_S1_PIN,
ADPT1_S2_PIN,
ADPT1_S3_PIN,
ADPT1_S4_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
UNCONNECTED_PIN,
};
static void shift_out(uint8_t *p, uint32_t len)
{
nrf_gpio_pin_clear(ADPT_LE_PIN);
for (int32_t j = len; j > 0; j--)
{
uint32_t val = p[j - 1];
for (uint32_t i = 0x01 << (SW_PER_BYTE - 1); i > 0; i >>= 1)
{
nrf_gpio_pin_clear(ADPT_CLK_PIN);
nrf_gpio_pin_write(ADPT_DIN_PIN, val & i);
nrf_gpio_pin_set(ADPT_CLK_PIN);
nrf_gpio_pin_write(ADPT_DIN_PIN, val & i);
}
}
nrf_gpio_pin_clear(ADPT_CLK_PIN);
nrf_gpio_pin_clear(ADPT_DIN_PIN);
nrf_gpio_pin_set(ADPT_LE_PIN);
nrf_gpio_pin_clear(ADPT_LE_PIN);
}
int max14802_reset(void)
{
m_sw.val = 0;
shift_out((uint8_t *)&m_sw.val, SW_TOTAL_COUNT / SW_PER_BYTE);
return 0;
}
int max14802_write(sw_t sw_mask)
{
if (m_sw.val != sw_mask.val)
{
m_sw = sw_mask;
// Disable A1_AOUT,A2_AOUT,B1_AOUT, .... B3_AOUT, B4_AOUT
for (uint32_t i = 0; i < SW_TOTAL_COUNT; i++)
{
nrf_gpio_pin_write(exclude_io[i], EXCLUDE_IO_DISABLE);
}
nrf_delay_ms(1);
// Set max14082
shift_out((uint8_t *)&m_sw.val, SW_TOTAL_COUNT / SW_PER_BYTE);
// Enable A1_AOUT,A2_AOUT,B1_AOUT, .... B3_AOUT, B4_AOUT are all disable when all max14082 off
if (m_sw.val == 0)
{
nrf_delay_ms(1);
for (uint32_t i = 0; i < SW_TOTAL_COUNT; i++)
{
nrf_gpio_pin_write(exclude_io[i], EXCLUDE_IO_ENABLE);
}
}
}
return 0;
}
int max14802_read(sw_t *p_sw_mask)
{
*p_sw_mask = m_sw;
return 0;
}
int max14802_get_sw_count(uint32_t *p_sw_count)
{
*p_sw_count = SW_TOTAL_COUNT;
return 0;
}
int max14802_init(void)
{
nrf_gpio_pin_set(ADPT_CLR_PIN);
nrf_gpio_pin_clear(ADPT_LE_PIN);
nrf_gpio_pin_clear(ADPT_CLK_PIN);
nrf_gpio_pin_clear(ADPT_DIN_PIN);
nrf_gpio_cfg_output(ADPT_CLR_PIN);
nrf_gpio_cfg_output(ADPT_LE_PIN);
nrf_gpio_cfg_output(ADPT_CLK_PIN);
nrf_gpio_cfg_output(ADPT_DIN_PIN);
for (uint32_t i = 0; i < COUNTOF(exclude_io); i++)
{
nrf_gpio_pin_write(exclude_io[i], EXCLUDE_IO_DISABLE);
}
max14802_write((sw_t) { .val = 0 });
nrf_gpio_pin_clear(ADPT_CLR_PIN);
return 0;
}
const sw_drv_if_t max14802 = {
.init = max14802_init,
.reset = max14802_reset,
.write = max14802_write,
.read = max14802_read,
.get_sw_count = max14802_get_sw_count,
};
#endif