12  * @brief Atmel SAM MCU family ADC (AFEC) driver.
15  * Front-End Controller (AFEC) peripheral.
65 	Afec *regs;
75 	Afec *const afec = cfg->regs;  in adc_sam_channel_setup()  local
80 	afec->AFEC_CGR &= ~(3 << channel_id * 2U);  in adc_sam_channel_setup()
87 		afec->AFEC_CGR |= (1 << (channel_id * 2U));  in adc_sam_channel_setup()
90 		afec->AFEC_CGR |= (2 << (channel_id * 2U));  in adc_sam_channel_setup()
116 	afec->AFEC_EMR &= ~(AFEC_EMR_SIGNMODE(  in adc_sam_channel_setup()
127 	Afec *const afec = cfg->regs;  in adc_sam_start_conversion()  local
134 	afec->AFEC_CHDR = 0xfff;  in adc_sam_start_conversion()
135 	afec->AFEC_IDR = 0xfff;  in adc_sam_start_conversion()
138 	 * an input to the AFEC (50.5.1 SAM E70 datasheet).  in adc_sam_start_conversion()
140 	afec->AFEC_CHER = (1 << data->channel_id);  in adc_sam_start_conversion()
143 	afec->AFEC_IER = (1 << data->channel_id);  in adc_sam_start_conversion()
146 	afec->AFEC_CR = AFEC_CR_START;  in adc_sam_start_conversion()
270 	Afec *const afec = cfg->regs;  in adc_sam_init()  local
273 	/* Reset the AFEC. */  in adc_sam_init()
274 	afec->AFEC_CR = AFEC_CR_SWRST;  in adc_sam_init()
276 	afec->AFEC_MR = AFEC_MR_TRGEN_DIS  in adc_sam_init()
287 		afec->AFEC_CSELR = i;  in adc_sam_init()
288 		afec->AFEC_COCR = 512;  in adc_sam_init()
292 	afec->AFEC_ACR = AFEC_ACR_IBCTL(1)  in adc_sam_init()
299 	/* Enable AFEC clock in PMC */  in adc_sam_init()
346 	Afec *const afec = cfg->regs;  in adc_sam_isr()  local
349 	afec->AFEC_CHDR |= BIT(data->channel_id);  in adc_sam_isr()
350 	afec->AFEC_IDR |= BIT(data->channel_id);  in adc_sam_isr()
352 	afec->AFEC_CSELR = AFEC_CSELR_CSEL(data->channel_id);  in adc_sam_isr()
353 	result = (uint16_t)(afec->AFEC_CDR);  in adc_sam_isr()
371 		.regs = (Afec *)DT_INST_REG_ADDR(n),			\