BCU/library/drv_peripheral/drv_bf8915.c

#include "drv_gpio.h"
#include "kit_debug.h"
#include "drv_bf8915.h"
#include "drv_spi.h"
#include "bsp_bf8915a.h"

#include "kit_data.h"

const uint16_t pec15_table[256] =
{ 
    0x0000, 0xc599, 0xceab, 0x0b32, 0xd8cf, 0x1d56, 0x1664, 0xd3fd, 0xf407, 0x319e, 0x3aac, 0xff35, 0x2cc8, 0xe951, 0xe263, 0x27fa, 0xad97, 0x680e, 0x633c,
    0xa6a5, 0x7558, 0xb0c1, 0xbbf3, 0x7e6a, 0x5990, 0x9c09, 0x973b, 0x52a2, 0x815f, 0x44c6, 0x4ff4, 0x8a6d, 0x5b2e, 0x9eb7, 0x9585, 0x501c, 0x83e1, 0x4678,
    0x4d4a, 0x88d3, 0xaf29, 0x6ab0, 0x6182, 0xa41b, 0x77e6, 0xb27f, 0xb94d, 0x7cd4, 0xf6b9, 0x3320, 0x3812, 0xfd8b, 0x2e76, 0xebef, 0xe0dd, 0x2544, 0x02be,
    0xc727, 0xcc15, 0x098c, 0xda71, 0x1fe8, 0x14da, 0xd143, 0xf3c5, 0x365c, 0x3d6e, 0xf8f7, 0x2b0a, 0xee93, 0xe5a1, 0x2038, 0x07c2, 0xc25b, 0xc969, 0x0cf0,
    0xdf0d, 0x1a94, 0x11a6, 0xd43f, 0x5e52, 0x9bcb, 0x90f9, 0x5560, 0x869d, 0x4304, 0x4836, 0x8daf, 0xaa55, 0x6fcc, 0x64fe, 0xa167, 0x729a, 0xb703, 0xbc31,
    0x79a8, 0xa8eb, 0x6d72, 0x6640, 0xa3d9, 0x7024, 0xb5bd, 0xbe8f, 0x7b16, 0x5cec, 0x9975, 0x9247, 0x57de, 0x8423, 0x41ba, 0x4a88, 0x8f11, 0x057c, 0xc0e5,
    0xcbd7, 0x0e4e, 0xddb3, 0x182a, 0x1318, 0xd681, 0xf17b, 0x34e2, 0x3fd0, 0xfa49, 0x29b4, 0xec2d, 0xe71f, 0x2286, 0xa213, 0x678a, 0x6cb8, 0xa921, 0x7adc,
    0xbf45, 0xb477, 0x71ee, 0x5614, 0x938d, 0x98bf, 0x5d26, 0x8edb, 0x4b42, 0x4070, 0x85e9, 0x0f84, 0xca1d, 0xc12f, 0x04b6, 0xd74b, 0x12d2, 0x19e0, 0xdc79,
    0xfb83, 0x3e1a, 0x3528, 0xf0b1, 0x234c, 0xe6d5, 0xede7, 0x287e, 0xf93d, 0x3ca4, 0x3796, 0xf20f, 0x21f2, 0xe46b, 0xef59, 0x2ac0, 0x0d3a, 0xc8a3, 0xc391,
    0x0608, 0xd5f5, 0x106c, 0x1b5e, 0xdec7, 0x54aa, 0x9133, 0x9a01, 0x5f98, 0x8c65, 0x49fc, 0x42ce, 0x8757, 0xa0ad, 0x6534, 0x6e06, 0xab9f, 0x7862, 0xbdfb,
    0xb6c9, 0x7350, 0x51d6, 0x944f, 0x9f7d, 0x5ae4, 0x8919, 0x4c80, 0x47b2, 0x822b, 0xa5d1, 0x6048, 0x6b7a, 0xaee3, 0x7d1e, 0xb887, 0xb3b5, 0x762c, 0xfc41,
    0x39d8, 0x32ea, 0xf773, 0x248e, 0xe117, 0xea25, 0x2fbc, 0x0846, 0xcddf, 0xc6ed, 0x0374, 0xd089, 0x1510, 0x1e22, 0xdbbb, 0x0af8, 0xcf61, 0xc453, 0x01ca,
    0xd237, 0x17ae, 0x1c9c, 0xd905, 0xfeff, 0x3b66, 0x3054, 0xf5cd, 0x2630, 0xe3a9, 0xe89b, 0x2d02, 0xa76f, 0x62f6, 0x69c4, 0xac5d, 0x7fa0, 0xba39, 0xb10b,
    0x7492, 0x5368, 0x96f1, 0x9dc3, 0x585a, 0x8ba7, 0x4e3e, 0x450c, 0x8095 
};

uint16_t drv_bf8915_pec15_calc(const uint8_t *buf, uint8_t len)
{
	uint16_t remainder = 0, addr = 0;
	uint32_t i;

	remainder = 16;
	for (i = 0; i < len; i++)
	{
		addr = ((remainder >> 7) ^ buf[i]) & 0xff;
		remainder = (remainder << 8) ^ pec15_table[addr];
	}
	return (remainder * 2);
    
}

void delay_us(uint32_t nus)
{
    kit_time_dly_us(nus);
}

uint8_t SPI1_ReadWriteByte(uint8_t TxData)
{
    return drv_spi_sync_send_rev(kSpiDev_1, TxData) ;
}

uint8_t SPI2_ReadWriteByte(uint8_t TxData)
{
    return drv_spi_sync_send_rev(kSpiDev_2, TxData) ;
}


//每个寄存器组6个字节,返回值外加2字节PEC
kit_ret_e drv_bf8915_read_register(Bf8915Item *item, uint16_t reg, uint8_t *buf)
{
    
    uint8_t snd_buf[4];
    uint8_t rcv_buf[8];
    uint16_t tmp;
    uint32_t addr = 0;
    kit_ret_e res = kKit_Ret_CheckErr;
    
    drv_gpio_set_pin_status(item->cs, kGpioStatus_Low);
    
    WRITE_BT_INT16U(snd_buf, addr, reg);
    tmp = drv_bf8915_pec15_calc(snd_buf, 2);
    WRITE_BT_INT16U(snd_buf, addr, tmp);
    
    drv_spi_series_sync_send_receive(item->spi, snd_buf, 4, rcv_buf, 8);
    
    tmp = ((uint16_t)rcv_buf[6] << 8) + rcv_buf[7];
    if(drv_bf8915_pec15_calc(rcv_buf, 6) == tmp)
    {
        kit_copy_buf(buf, rcv_buf, 6);
        res = kKit_Ret_Ok;
    }
    drv_gpio_set_pin_status(item->cs, kGpioStatus_High);
    
    return res;
}


kit_ret_e drv_bf8915_write_register(Bf8915Item *item, uint16_t reg, uint8_t *buf)
{
    uint8_t snd_buf[4 + 8];
    uint16_t tmp;
    uint32_t addr = 0;
    kit_ret_e res = kKit_Ret_Error;
    
    drv_gpio_set_pin_status(item->cs, kGpioStatus_Low);
    
    WRITE_BT_INT16U(snd_buf, addr, reg);
    tmp = drv_bf8915_pec15_calc(snd_buf, 2);
    WRITE_BT_INT16U(snd_buf, addr, tmp);
    
    if(reg < 5)
    {
        kit_copy_buf(&snd_buf[4], buf, 6);
        tmp = drv_bf8915_pec15_calc(&snd_buf[4], 6);
        addr += 6;
        WRITE_BT_INT16U(snd_buf, addr, tmp);
    }
    
    res = drv_spi_series_sync_send_receive(item->spi, snd_buf, addr, NULL, 0);
    kit_time_dly_us(3);
    drv_gpio_set_pin_status(item->cs, kGpioStatus_High);
    
    return res;
}


void drv_bf8915_wakeup(Bf8915Item *item)
{
    drv_gpio_set_pin_status(item->cs, kGpioStatus_Low);
    kit_time_dly_us(10);
    drv_gpio_set_pin_status(item->cs, kGpioStatus_High);
}

kit_ret_e drv_bf8915_init(Bf8915Item *item)
{
    uint32_t  i;
    uint8_t   buf[6];
    kit_ret_e res = kKit_Ret_Ok;
    
    KIT_ASSERT_PARAM(item != NULL);
    
	if(item != NULL)
	{
		for(i = 0; i < item->arr_len; i++)
		{
			drv_bf8915_write_register(item, item->arr[i].addr, (uint8_t *)item->arr[i].value);
            drv_bf8915_read_register(item, item->arr[i].addr + 4, buf);
            if(kit_is_buf_same(item->arr[i].value, buf, 6) == false)
            {
                res = kKit_Ret_CheckErr;
                break;
            }
		}
    }
    else
    {
        res = kKit_Ret_ParamErr;
    }
       
    KIT_ASSERT_RES((uint32_t)item, res);
    return res;
}