//*----------------------------------------------------------------------------
//* DCR function
//*----------------------------------------------------------------------------
void CAN_DCR(CAN_INFO drv_info, unsigned int reason, HANDLE param)
{
CAN_DRIVER_DATA* drv_data;
drv_data = drv_info->drv_data;
switch(reason)
{
case DCR_RESET:
//Initialize the driver here
Task* task;
task = usr_task_create_dynamic("CANT", (TASK_FUNCTION) can_thread, 90,
CAN_TASK_STACK_SIZE);
if (task)
{
svc_task_schedule(task);
task->sp->r0.as_cvoidptr = drv_info;
}
break;
case DCR_OPEN:
param->res = RES_OK;
break;
case DCR_CANCEL:
if(param->mode.as_int)
{
param->svc_list_cancel(drv_data->waiting);
} else
{
param->svc_list_cancel(drv_data->helper);
}
break;
}
}
/** DACC Driver DCR routine
*
* @param drv_info
* @param reason
* @param param
*/
void DACC_DCR(DACC_INFO drv_info, unsigned int reason, HANDLE param)
{
DACC_DRIVER_DATA drv_data = drv_info->drv_data;
Dacc* pDacc = drv_info->hw_base;
switch(reason)
{
case DCR_RESET:
DACC_off(drv_info);
break;
case DCR_OPEN:
{
DRV_DACC_MODE pMode = (DRV_DACC_MODE)(param->mode.as_voidptr);
if(drv_data->cnt)
{
if(pMode->DACC_MR != pDacc->DACC_MR)
return;
} else
{
DACC_on(drv_info, pMode);
}
pDacc->DACC_CHER = pMode->DACC_CHER;
drv_data->cnt++;
param->res = RES_OK;
break;
}
case DCR_CLOSE:
if(!--drv_data->cnt)
DACC_off(drv_info);
break;
case DCR_CANCEL:
if (drv_data->pending == param)
{
pDacc->DACC_PTCR = DACC_PTCR_TXTDIS;
drv_data->pending = param->next;
if(drv_data->pending)
START_TX_HND(pDacc, drv_data->pending);
svc_HND_SET_STATUS(param, RES_SIG_IDLE);
} else
param->svc_list_cancel(drv_data->pending);
break;
}
}
//*----------------------------------------------------------------------------
//* DCR function
//*----------------------------------------------------------------------------
void KEY2_DCR(KEY2_DRIVER_INFO* drv_info, unsigned int reason, HANDLE param)
{
KEY2_DRIVER_DATA* drv_data;
drv_data = drv_info->drv_data;
switch(reason)
{
case DCR_RESET:
drv_data->key_in = 0;
drv_data->key_out = 0;
usr_task_init_static(&keyboard_task_desc, true);
keyboard_task.sp->r0.as_cvoidptr = drv_info;
break;
case DCR_OPEN:
param->res = RES_OK;
break;
case DCR_CANCEL:
param->svc_list_cancel(drv_data->waiting);
break;
case DCR_PARAMS:
//keycode sent from thread
{
HANDLE hnd = drv_data->waiting;
if( hnd )
{
// send the code to the waiting
*hnd->dst.as_byteptr++ = (unsigned int)param;
drv_data->waiting = hnd->next;
svc_HND_SET_STATUS(hnd, RES_SIG_OK);
} else
{
// store the code in the key_buf
drv_data->key_buf[drv_data->key_in] = (unsigned int)param;
drv_data->key_in = (drv_data->key_in+1) & DRV_KEYBUF_SIZE;
}
}
break;
}
}
/** USART DCR
*
* @param drv_info
* @param reason
* @param param
*/
void USART_DCR(USART_INFO drv_info, unsigned int reason, HANDLE param)
{
UART_DRIVER_DATA drv_data = drv_info->drv_data;
unsigned int temp;
switch(reason)
{
case DCR_RESET:
drv_data->buf_size = drv_info->buf_size;
USART_OFF(drv_info);
break;
case DCR_OPEN:
{
DRV_UART_MODE pMode = (DRV_UART_MODE)(param->mode.as_voidptr);
if(pMode)
{
if(drv_data->cnt)
{
if( (pMode->mode != drv_data->mode) ||
(pMode->baudrate != drv_data->baudrate))
return;
} else
{
drv_data->mode = pMode->mode;
drv_data->baudrate =pMode->baudrate;
USART_CFG(drv_info, pMode);
START_RX_BUF(drv_info->hw_base, drv_data);
}
drv_data->cnt++;
param->res = RES_OK;
}
break;
}
case DCR_CLOSE:
if(drv_data->cnt)
if(!--drv_data->cnt)
USART_OFF(drv_info);
break;
case DCR_CANCEL:
{
if (param->cmd & FLAG_READ)
{
if(param == drv_data->hnd_rcv)
{
STOP_RX(drv_info->hw_base);
temp = drv_info->hw_base->US_RCR;
if(param->len > temp)
{
param->len = temp;
param->dst.as_int = drv_info->hw_base->US_RPR;
temp = RES_OK;
} else
temp = RES_SIG_IDLE;
drv_data->hnd_rcv = param->next;
if( drv_data->hnd_rcv )
START_RX_HND(drv_info->hw_base, drv_data, drv_data->hnd_rcv);
else
START_RX_BUF(drv_info->hw_base, drv_data);
svc_HND_SET_STATUS(param, temp);
} else
param->svc_list_cancel(drv_data->hnd_rcv);
} else
{
if(param == drv_data->hnd_snd)
{
STOP_TX(drv_info->hw_base);
temp = drv_info->hw_base->US_TCR;
if(param->len > temp)
{
param->len = temp;
param->src.as_int = drv_info->hw_base->US_TPR;
temp = RES_OK;
} else
temp = RES_SIG_IDLE;
drv_data->hnd_snd = param->next;
if( drv_data->hnd_snd )
START_TX_HND(drv_info->hw_base, drv_data->hnd_snd);
svc_HND_SET_STATUS(param, temp);
} else
param->svc_list_cancel(drv_data->hnd_snd);
}
break;
}
case DCR_CLOCK:
if(drv_data->cnt)
drv_info->hw_base->US_BRGR = AT91_GetDiv(drv_data->baudrate);
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;
}
}
