void DAC_DCR(DAC_DRIVER_INFO* drv_info, unsigned int reason, HANDLE hnd)
{
DAC_DRIVER_DATA *drv_data = drv_info->drv_data;
DAC_DRIVER_MODE *dac_mode = (DAC_DRIVER_MODE *)(hnd->mode.as_voidptr);
switch(reason)
{
case DCR_RESET:
RCCPeripheralReset(drv_info->info.peripheral_indx);
RCCPeripheralDisable(drv_info->info.peripheral_indx); // ??? turn off
#if USE_DAC_DMA_DRIVER
drv_data->dac_dma_hnd[0].client.drv_index = drv_info->info.drv_index;
drv_data->dac_dma_hnd[1].client.drv_index = drv_info->info.drv_index;
#endif
break;
case DCR_OPEN:
{
if(dac_mode && dac_mode->dac_ch <2 && drv_data->dac_mode[dac_mode->dac_ch] == NULL)
{
if(!drv_data->dac_mode[0] && !drv_data->dac_mode[1])
{
if(!ConfigureDac(drv_info))
break;
}
ConfigureDacChannel(drv_info->hw_base, dac_mode);
drv_data->dac_mode[dac_mode->dac_ch] = dac_mode;
hnd->res = RES_OK;
}
break;
}
case DCR_CLOSE:
#if USE_DAC_DMA_DRIVER
drv_data->dac_dma_hnd[dac_mode->dac_ch].close();
#endif
drv_data->dac_mode[dac_mode->dac_ch] = NULL;
if(!drv_data->dac_mode[0] && !drv_data->dac_mode[1])
{
//Disable ?
NVIC_DisableIRQ(drv_info->info.drv_index);
RCCPeripheralDisable(drv_info->info.peripheral_indx);
PIO_Free_List(drv_info->dac_pins);
}
break;
case DCR_CANCEL:
// can only cancel dma transfers
#if USE_DAC_DMA_DRIVER
if(drv_data->dac_dma_hnd[dac_mode->dac_ch].res & FLG_BUSY)
drv_data->dac_dma_hnd[dac_mode->dac_ch].hcontrol(DCR_CANCEL);
#endif
break;
case DCR_SIGNAL:
#if USE_DAC_DMA_DRIVER
TRACELN1("DAC sig");
if(hnd == &drv_data->dac_dma_hnd[0])
{
hnd = drv_data->pending[0];
if(hnd)
{
if(hnd->len > drv_data->dac_dma_hnd[0].len)
{
hnd->src.as_byteptr += hnd->len - drv_data->dac_dma_hnd[0].len;
hnd->len = drv_data->dac_dma_hnd[0].len;
}
drv_data->pending[0] = NULL;
if (__get_CONTROL() & 2)
usr_HND_SET_STATUS(hnd, RES_SIG_OK);
else
svc_HND_SET_STATUS(hnd, RES_SIG_OK);
}
} else
{
if(hnd == &drv_data->dac_dma_hnd[1])
{
hnd = drv_data->pending[1];
if(hnd)
{
if(hnd->len > drv_data->dac_dma_hnd[1].len)
{
hnd->src.as_byteptr += hnd->len - drv_data->dac_dma_hnd[1].len;
hnd->len = drv_data->dac_dma_hnd[1].len;
}
drv_data->pending[1] = NULL;
usr_HND_SET_STATUS(hnd, RES_SIG_OK);
}
}
}
#endif
break;
}
}
void dcr_SerialDriver(UART_DRIVER_INFO* drv_info, unsigned int reason, HANDLE hnd)
{
UART_Type * Uart = drv_info->hw_base;
UART_DRIVER_DATA *drv_data = drv_info->drv_data;
switch(reason)
{
case DCR_ISR:
TX_CTS(drv_data, Uart, (unsigned int)hnd);
return;
case DCR_RESET:
SysCtlPeripheralReset(drv_info->info.peripheral_indx);
SysCtlPeripheralDisable(drv_info->info.peripheral_indx); // ??? turn off
return;
case DCR_OPEN:
{
UART_DRIVER_MODE *uart_mode = (UART_DRIVER_MODE *)(hnd->mode.as_voidptr);
if(uart_mode)
{
//unsigned long mode, baudrate;
if(drv_data->cnt)
{
if( uart_mode->mode != drv_data->mode.mode ||
uart_mode->baudrate != drv_data->mode.baudrate ||
uart_mode->hw_flow != drv_data->mode.hw_flow )
{
return;
}
}
else
{
// Enable AND Reset the UART peripheral
SysCtlPeripheralReset(drv_info->info.peripheral_indx);
if(drv_data->mode.hw_flow)
{
PIO_Cfg_List((PIN_DESC *)&drv_info->uart_pins[UART_LIST_ALL_PINS]);
ConfigureUart(drv_info, drv_data, uart_mode);
#ifdef HW_VER_10
if(drv_info->info.drv_index != UART1_IRQn)
TX_CTS(drv_data, Uart, PIO_Read(drv_info->uart_pins[CTS_PIN]));
#endif
}
else
{
PIO_Cfg_List((PIN_DESC *)&drv_info->uart_pins[UART_LIST_RX_TX_PINS]);
ConfigureUart(drv_info, drv_data, uart_mode);
}
START_RX_BUF(Uart, drv_info, drv_data);
}
drv_data->cnt++;
hnd->res = RES_OK;
}
return;
}
case DCR_CLOSE:
if(drv_data->cnt)
drv_data->cnt--;
case DCR_CANCEL:
{
if( !(hnd->res & FLG_BUSY))
return;
if (hnd->cmd & FLAG_READ)
{
if(hnd == drv_data->hnd_rcv)
{
STOP_RX(Uart);
if(hnd->len > drv_data->rx_remaining || hnd->mode0 )
{
hnd->len = drv_data->rx_remaining;
hnd->res = RES_SIG_OK;
}
else
hnd->res = RES_SIG_IDLE;
drv_data->hnd_rcv = hnd->next;
svc_HND_SET_STATUS(hnd, hnd->res);
if( (hnd=drv_data->hnd_rcv) )
START_RX_HND(Uart, drv_info, hnd);
else
START_RX_BUF(Uart, drv_info, drv_data);
}
else
{
// try cnacel
hnd->svc_list_cancel(drv_data->hnd_rcv);
}
}
else
{
if(hnd == drv_data->hnd_snd)
{
STOP_TX(Uart);
drv_data->hnd_snd = hnd->next;
svc_HND_SET_STATUS(hnd, RES_SIG_IDLE);
if( (hnd=drv_data->hnd_snd) )
START_TX_HND(Uart, hnd);
}
else
{
hnd->svc_list_cancel(drv_data->hnd_snd);
}
}
if(!drv_data->cnt)
{
NVIC->NVIC_DisableIRQ(drv_info->info.drv_index);
Uart->UARTDisable();
STOP_RX(Uart);
STOP_TX(Uart);
SysCtlPeripheralDisable(drv_info->info.peripheral_indx);
SYSCTL->SysCtlPeripheralDeepSleepDisable(drv_info->info.peripheral_indx);
SYSCTL->SysCtlPeripheralSleepDisable(drv_info->info.peripheral_indx);
if(drv_data->mode.hw_flow)
PIO_Free_List((PIN_DESC *)&drv_info->uart_pins[UART_LIST_ALL_PINS]);
else
PIO_Free_List((PIN_DESC *)&drv_info->uart_pins[UART_LIST_RX_TX_PINS]);
}
return;
}
case DCR_CLOCK:
return;
}
}
