void hal_nrf_init(void)
{
hal_nrf_sta=HAL_NRF_STA_RX;
hal_nrf_tx_sta = HAL_NRF_TX_STA_IDLE;
hal_nrf_tx_rd_index=0, hal_nrf_tx_cnt=0, hal_nrf_tx_wr_index=0;
hal_nrf_tx_busy = 0;
hal_nrf_rx_sta = HAL_NRF_RX_STA_IDLE;
hal_nrf_rx_rd_index=0, hal_nrf_rx_cnt=0, hal_nrf_rx_wr_index=0;
CSN_OUTPUT();
CE_OUTPUT();
CSN_HIGH();
CE_LOW();
IRQ_INPUT() ;
IRQ_EN();
t2_init();
spi_init();
hal_nrf_tick_num = sys_tick_apply();
sys_tick_set(hal_nrf_tick_num, ON);
hal_nrf_cnt = 0;
}
void hal_nrf_send_pkt(u8 *buf, u8 len)
{
u8 i;
while( (hal_nrf_tx_cnt+len+1) > HAL_NRF_TX_BUF_LEN);
/** enter Mutex region */
IRQ_DIS();
if(hal_nrf_tx_cnt || hal_nrf_tx_busy){
hal_nrf_tx_buf[hal_nrf_tx_wr_index] = len;
hal_nrf_tx_wr_index++;
if(hal_nrf_tx_wr_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_wr_index = 0;
}
hal_nrf_tx_cnt++;
for(i=0; i<len; i++){
hal_nrf_tx_buf[hal_nrf_tx_wr_index] = buf[i];
hal_nrf_tx_wr_index++;
if(hal_nrf_tx_wr_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_wr_index = 0;
}
hal_nrf_tx_cnt++;
}
}
else{
switch(hal_nrf_sta){
case HAL_NRF_STA_TX:
/** TX modoule idle, data to USART data register */
hal_nrf_write_tx_payload(buf, len);
// CE_HIGH();
// T2_START();
t2_start_delay();
hal_nrf_tx_busy = 1;
break;
case HAL_NRF_STA_RX:
/* FRIST TX PAYLOAD */
// hal_nrf_ack_flag = 1;
// read_flash_buf(slave_cmd, slave_cmd_request, CMD_LENGTH);
// hal_nrf_write_ack_payload(0, slave_cmd, CMD_LENGTH);
hal_nrf_tx_buf[hal_nrf_tx_wr_index] = len;
hal_nrf_tx_wr_index++;
if(hal_nrf_tx_wr_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_wr_index = 0;
}
hal_nrf_tx_cnt++;
for(i=0; i<len; i++){
hal_nrf_tx_buf[hal_nrf_tx_wr_index] = buf[i];
hal_nrf_tx_wr_index++;
if(hal_nrf_tx_wr_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_wr_index = 0;
}
hal_nrf_tx_cnt++;
}
break;
}
}
/** exit Mutex region */
IRQ_EN();
}
void hal_nrf_set_sta(hal_nrf_sta_t sta)
{
u8 len, i;
if(hal_nrf_tx_cnt){
hal_nrf_tx_cmd_flag = 0;
HAL_NRF_WAIT_ACK_DONE();
IRQ_DIS();
CE_LOW();
hal_nrf_flush_tx();
hal_nrf_flush_rx();
hal_nrf_sta = HAL_NRF_STA_TX;
hal_nrf_tx_busy = 1;
len = hal_nrf_tx_buf[hal_nrf_tx_rd_index];
hal_nrf_tx_rd_index++;
if(hal_nrf_tx_rd_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_rd_index = 0;
}
hal_nrf_tx_cnt = hal_nrf_tx_cnt-len-1;
// hal_nrf_write_tx_payload(hal_nrf_tx_buf_tmp, len);
CSN_LOW();
HAL_NRF_HW_SPI_WRITE(W_TX_PAYLOAD);
while(HAL_NRF_HW_SPI_BUSY) {}
HAL_NRF_HW_SPI_READ();
for(i=0; i<len; i++){
HAL_NRF_HW_SPI_WRITE(hal_nrf_tx_buf[hal_nrf_tx_rd_index]);
hal_nrf_tx_rd_index++;
if(hal_nrf_tx_rd_index == HAL_NRF_TX_BUF_LEN){
hal_nrf_tx_rd_index = 0;
}
while(HAL_NRF_HW_SPI_BUSY) {} /* wait for byte transfer finished */
HAL_NRF_HW_SPI_READ();
}
CSN_HIGH();
hal_nrf_set_operation_mode(HAL_NRF_PTX);
// CE_HIGH();
// T2_START();
t2_start_delay();
IRQ_EN();
}else{
read_flash_buf(slave_cmd, slave_cmd_end, CMD_LENGTH);
hal_nrf_send_cmd(slave_cmd, HAL_NRF_STA_RX);
hal_nrf_tx_cmd_flag = 2;
}
}
void hal_nrf_send_cmd(u8 *buf, u8 sta)
{
/** auto ack delay */
HAL_NRF_WAIT_ACK_DONE();
IRQ_DIS();
CE_LOW();
hal_nrf_flush_tx();
hal_nrf_flush_rx();
hal_nrf_sta = HAL_NRF_STA_TX_CMD;
// hal_nrf_sta_next = sta;
hal_nrf_write_tx_payload(buf, CMD_LENGTH);
// hal_nrf_write_tx_payload_noack(buf, CMD_LENGTH);
hal_nrf_set_operation_mode(HAL_NRF_PTX);
// CE_HIGH();
// T2_START();
t2_start_delay();
IRQ_EN();
}
u8 hal_nrf_receive_pkt(u8 *buf)
{
u8 i,len=0;
//ENTER_MUTEX();
IRQ_DIS();
len = hal_nrf_rx_buf[hal_nrf_rx_rd_index];
hal_nrf_rx_rd_index++;
if(hal_nrf_rx_rd_index == HAL_NRF_RX_BUF_LEN){
hal_nrf_rx_rd_index = 0;
}
for(i=0; i<len; i++){
buf[i] = hal_nrf_rx_buf[hal_nrf_rx_rd_index];
hal_nrf_rx_rd_index++;
if(hal_nrf_rx_rd_index == HAL_NRF_RX_BUF_LEN){
hal_nrf_rx_rd_index = 0;
}
}
hal_nrf_rx_cnt = hal_nrf_rx_cnt - len -1;
IRQ_EN();
//EXIT_MUTEX();
return len;
}
void imx233_timrot_setup(unsigned timer_nr, bool reload, unsigned count,
unsigned src, unsigned prescale, bool polarity, imx233_timer_fn_t fn)
{
int oldstatus = disable_interrupt_save(IRQ_FIQ_STATUS);
/* only enable interrupt if function is set */
bool irq = fn != NULL;
timer_fns[timer_nr] = fn;
/* make sure we start from stop state */
HW_TIMROT_TIMCTRLn(timer_nr) = BF_OR2(TIMROT_TIMCTRLn,
SELECT(BV_TIMROT_TIMCTRLn_SELECT__NEVER_TICK), UPDATE(1));
/* write count and take effect immediately with UPDATE
* manual says count-1 for reload timers */
HW_TIMROT_TIMCOUNTn(timer_nr) = reload ? count - 1 : count;
/* start timer */
HW_TIMROT_TIMCTRLn(timer_nr) = BF_OR6(TIMROT_TIMCTRLn, SELECT(src),
PRESCALE(prescale), POLARITY(polarity), RELOAD(reload), IRQ(irq),
IRQ_EN(irq));
imx233_icoll_enable_interrupt(INT_SRC_TIMER(timer_nr), irq);
restore_interrupt(oldstatus);
}
