| 207 | } |
| 208 | |
| 209 | static void |
| 210 | ti_adc_input_setup(struct ti_adc_softc *sc, int32_t ain) |
| 211 | { |
| 212 | struct ti_adc_input *input; |
| 213 | uint32_t reg, val; |
| 214 | |
| 215 | TI_ADC_LOCK_ASSERT(sc); |
| 216 | |
| 217 | input = &ti_adc_inputs[ain]; |
| 218 | reg = input->stepconfig; |
| 219 | val = ADC_READ4(sc, reg); |
| 220 | |
| 221 | /* Set single ended operation. */ |
| 222 | val &= ~ADC_STEP_DIFF_CNTRL; |
| 223 | |
| 224 | /* Set the negative voltage reference. */ |
| 225 | val &= ~ADC_STEP_RFM_MSK; |
| 226 | |
| 227 | /* Set the positive voltage reference. */ |
| 228 | val &= ~ADC_STEP_RFP_MSK; |
| 229 | |
| 230 | /* Set the samples average. */ |
| 231 | val &= ~ADC_STEP_AVG_MSK; |
| 232 | val |= input->samples << ADC_STEP_AVG_SHIFT; |
| 233 | |
| 234 | /* Select the desired input. */ |
| 235 | val &= ~ADC_STEP_INP_MSK; |
| 236 | val |= ain << ADC_STEP_INP_SHIFT; |
| 237 | |
| 238 | /* Set the ADC to one-shot mode. */ |
| 239 | val &= ~ADC_STEP_MODE_MSK; |
| 240 | |
| 241 | ADC_WRITE4(sc, reg, val); |
| 242 | } |
| 243 | |
| 244 | static void |
| 245 | ti_adc_reset(struct ti_adc_softc *sc) |
no outgoing calls
no test coverage detected