228     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_init()  local
230     if (p_cb->state != NRFX_DRV_STATE_UNINITIALIZED)  in nrfx_i2s_init()
284     p_cb->handler = handler;  in nrfx_i2s_init()
285     p_cb->skip_gpio_cfg = p_config->skip_gpio_cfg;  in nrfx_i2s_init()
286     p_cb->skip_psel_cfg = p_config->skip_psel_cfg;  in nrfx_i2s_init()
295     p_cb->state = NRFX_DRV_STATE_INITIALIZED;  in nrfx_i2s_init()
303     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_uninit()  local
305     NRFX_ASSERT(p_cb->state != NRFX_DRV_STATE_UNINITIALIZED);  in nrfx_i2s_uninit()
312     if (!p_cb->skip_gpio_cfg)  in nrfx_i2s_uninit()
318     if (!p_cb->skip_psel_cfg)  in nrfx_i2s_uninit()
333     p_cb->state = NRFX_DRV_STATE_UNINITIALIZED;  in nrfx_i2s_uninit()
339     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_init_check()  local
341     return (p_cb->state != NRFX_DRV_STATE_UNINITIALIZED);  in nrfx_i2s_init_check()
368     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_start()  local
370     if (p_cb->state != NRFX_DRV_STATE_INITIALIZED)  in nrfx_i2s_start()
392     p_cb->use_rx         = (p_initial_buffers->p_rx_buffer != NULL);  in nrfx_i2s_start()
393     p_cb->use_tx         = (p_initial_buffers->p_tx_buffer != NULL);  in nrfx_i2s_start()
394     p_cb->rx_ready       = false;  in nrfx_i2s_start()
395     p_cb->tx_ready       = false;  in nrfx_i2s_start()
396     p_cb->buffers_needed = false;  in nrfx_i2s_start()
398     p_cb->buffer_size    = buffer_size;  in nrfx_i2s_start()
404     p_cb->next_buffers = *p_initial_buffers;  in nrfx_i2s_start()
405     p_cb->current_buffers.p_rx_buffer = NULL;  in nrfx_i2s_start()
406     p_cb->current_buffers.p_tx_buffer = NULL;  in nrfx_i2s_start()
411     p_cb->state = NRFX_DRV_STATE_POWERED_ON;  in nrfx_i2s_start()
418                         (p_cb->use_rx ? NRF_I2S_INT_RXPTRUPD_MASK : 0UL) |  in nrfx_i2s_start()
419                         (p_cb->use_tx ? NRF_I2S_INT_TXPTRUPD_MASK : 0UL) |  in nrfx_i2s_start()
423     nrfy_i2s_buffers_set(p_instance->p_reg, &p_cb->next_buffers);  in nrfx_i2s_start()
426         .p_rx_buffer = p_cb->next_buffers.p_rx_buffer,  in nrfx_i2s_start()
427         .p_tx_buffer = p_cb->next_buffers.p_tx_buffer,  in nrfx_i2s_start()
428         .buffer_size = p_cb->buffer_size,  in nrfx_i2s_start()
443     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_next_buffers_set()  local
445     NRFX_ASSERT(p_cb->state == NRFX_DRV_STATE_POWERED_ON);  in nrfx_i2s_next_buffers_set()
457     if (!p_cb->buffers_needed)  in nrfx_i2s_next_buffers_set()
479     if (p_cb->use_tx)  in nrfx_i2s_next_buffers_set()
483     if (p_cb->use_rx)  in nrfx_i2s_next_buffers_set()
494         .buffer_size = p_cb->buffer_size,  in nrfx_i2s_next_buffers_set()
500     p_cb->next_buffers   = *p_buffers;  in nrfx_i2s_next_buffers_set()
501     p_cb->buffers_needed = false;  in nrfx_i2s_next_buffers_set()
508     nrfx_i2s_cb_t * p_cb = &m_cb[p_instance->drv_inst_idx];  in nrfx_i2s_stop()  local
510     NRFX_ASSERT(p_cb->state != NRFX_DRV_STATE_UNINITIALIZED);  in nrfx_i2s_stop()
512     p_cb->buffers_needed = false;  in nrfx_i2s_stop()
527 static void irq_handler(NRF_I2S_Type * p_reg, nrfx_i2s_cb_t * p_cb)  in irq_handler()  argument
533     p_xfer = &p_cb->current_buffers;  in irq_handler()
536         .p_rx_buffer = p_cb->current_buffers.p_rx_buffer,  in irq_handler()
537         .p_tx_buffer = p_cb->current_buffers.p_tx_buffer,  in irq_handler()
538         .buffer_size = p_cb->buffer_size,  in irq_handler()
551         p_cb->tx_ready = true;  in irq_handler()
552         if (p_cb->use_tx && p_cb->buffers_needed)  in irq_handler()
554             p_cb->buffers_reused = true;  in irq_handler()
559         p_cb->rx_ready = true;  in irq_handler()
560         if (p_cb->use_rx && p_cb->buffers_needed)  in irq_handler()
562             p_cb->buffers_reused = true;  in irq_handler()
575         p_cb->handler(&p_cb->current_buffers, 0);  in irq_handler()
580         p_cb->state = NRFX_DRV_STATE_INITIALIZED;  in irq_handler()
583         p_cb->handler(&p_cb->next_buffers, NRFX_I2S_STATUS_TRANSFER_STOPPED);  in irq_handler()
589         if ((p_cb->use_tx && p_cb->use_rx &&  in irq_handler()
590              p_cb->tx_ready && p_cb->rx_ready) ||  in irq_handler()
592             (!p_cb->use_rx && p_cb->tx_ready) ||  in irq_handler()
594             (!p_cb->use_tx && p_cb->rx_ready))  in irq_handler()
596             p_cb->tx_ready = false;  in irq_handler()
597             p_cb->rx_ready = false;  in irq_handler()
604             if (p_cb->buffers_reused)  in irq_handler()
606                 p_cb->buffers_reused = false;  in irq_handler()
612                 p_cb->buffers_needed = true;  in irq_handler()
613                 p_cb->handler(NULL, NRFX_I2S_STATUS_NEXT_BUFFERS_NEEDED);  in irq_handler()
621                 nrfx_i2s_buffers_t released_buffers = p_cb->current_buffers;  in irq_handler()
622                 p_cb->current_buffers = p_cb->next_buffers;  in irq_handler()
623                 p_cb->next_buffers.p_rx_buffer = NULL;  in irq_handler()
624                 p_cb->next_buffers.p_tx_buffer = NULL;  in irq_handler()
625                 p_cb->buffers_needed = true;  in irq_handler()
626                 p_cb->handler(&released_buffers, NRFX_I2S_STATUS_NEXT_BUFFERS_NEEDED);  in irq_handler()