88 typedef struct ADC {  struct
91 } ADC;  argument
93 ADC adc_defs = {
98 static uint32_t adc_read_con(QTestState *qts, const ADC *adc)  in adc_read_con()  argument
100     return qtest_readl(qts, adc->base_addr + CON_OFFSET);  in adc_read_con()
103 static void adc_write_con(QTestState *qts, const ADC *adc, uint32_t value)  in adc_write_con()  argument
105     qtest_writel(qts, adc->base_addr + CON_OFFSET, value);  in adc_write_con()
108 static uint32_t adc_read_data(QTestState *qts, const ADC *adc)  in adc_read_data()  argument
110     return qtest_readl(qts, adc->base_addr + DATA_OFFSET);  in adc_read_data()
119 static void adc_qom_set(QTestState *qts, const ADC *adc,  in adc_qom_set()  argument
123     const char *path = "/machine/soc/adc";  in adc_qom_set()
135 static void adc_write_input(QTestState *qts, const ADC *adc,  in adc_write_input()  argument
141     adc_qom_set(qts, adc, name, value);  in adc_write_input()
144 static void adc_write_vref(QTestState *qts, const ADC *adc, uint32_t value)  in adc_write_vref()  argument
146     adc_qom_set(qts, adc, "vref", value);  in adc_write_vref()
162 static uint32_t adc_prescaler(QTestState *qts, const ADC *adc)  in adc_prescaler()  argument
164     uint32_t div = extract32(adc_read_con(qts, adc), 1, 8);  in adc_prescaler()
175 static void adc_wait_conv_finished(QTestState *qts, const ADC *adc,  in adc_wait_conv_finished()  argument
178     uint32_t prescaler = adc_prescaler(qts, adc);  in adc_wait_conv_finished()
181      * ADC should takes roughly 20 cycles to convert one sample. So we assert it  in adc_wait_conv_finished()
186     /* ADC is still converting. */  in adc_wait_conv_finished()
187     g_assert_true(adc_read_con(qts, adc) & CON_CONV);  in adc_wait_conv_finished()
189     /* ADC has finished conversion. */  in adc_wait_conv_finished()
190     g_assert_false(adc_read_con(qts, adc) & CON_CONV);  in adc_wait_conv_finished()
193 /* Check ADC can be reset to default value. */
196     const ADC *adc = adc_p;  in test_init()  local
199     adc_write_con(qts, adc, CON_REFSEL | CON_INT);  in test_init()
200     g_assert_cmphex(adc_read_con(qts, adc), ==, CON_REFSEL);  in test_init()
204 /* Check ADC can convert from an internal reference. */
207     const ADC *adc = adc_p;  in test_convert_internal()  local
217             adc_write_input(qts, adc, index, input);  in test_convert_internal()
218             adc_write_con(qts, adc, CON_MUX(index) | CON_REFSEL | CON_INT |  in test_convert_internal()
220             adc_wait_conv_finished(qts, adc, DEFAULT_CLKDIV);  in test_convert_internal()
221             g_assert_cmphex(adc_read_con(qts, adc), ==, CON_MUX(index) |  in test_convert_internal()
223             g_assert_false(qtest_get_irq(qts, adc->irq));  in test_convert_internal()
224             output = adc_read_data(qts, adc);  in test_convert_internal()
232 /* Check ADC can convert from an external reference. */
235     const ADC *adc = adc_p;  in test_convert_external()  local
247                 adc_write_input(qts, adc, index, input);  in test_convert_external()
248                 adc_write_vref(qts, adc, vref);  in test_convert_external()
249                 adc_write_con(qts, adc, CON_MUX(index) | CON_INT | CON_EN |  in test_convert_external()
251                 adc_wait_conv_finished(qts, adc, DEFAULT_CLKDIV);  in test_convert_external()
252                 g_assert_cmphex(adc_read_con(qts, adc), ==,  in test_convert_external()
254                 g_assert_false(qtest_get_irq(qts, adc->irq));  in test_convert_external()
255                 output = adc_read_data(qts, adc);  in test_convert_external()
264 /* Check ADC interrupt files if and only if CON_INT_EN is set. */
267     const ADC *adc = adc_p;  in test_interrupt()  local
276     adc_write_input(qts, adc, index, input);  in test_interrupt()
277     g_assert_false(qtest_get_irq(qts, adc->irq));  in test_interrupt()
278     adc_write_con(qts, adc, CON_MUX(index) | CON_INT_EN | CON_REFSEL | CON_INT  in test_interrupt()
280     adc_wait_conv_finished(qts, adc, DEFAULT_CLKDIV);  in test_interrupt()
281     g_assert_cmphex(adc_read_con(qts, adc), ==, CON_MUX(index) | CON_INT_EN  in test_interrupt()
283     g_assert_true(qtest_get_irq(qts, adc->irq));  in test_interrupt()
284     output = adc_read_data(qts, adc);  in test_interrupt()
290 /* Check ADC is reset after setting ADC_RST for 10 ADC cycles. */
293     const ADC *adc = adc_p;  in test_reset()  local
299         adc_write_con(qts, adc, CON_INT | CON_EN | CON_RST | CON_DIV(div));  in test_reset()
301                     adc_prescaler(qts, adc), DEFAULT_CLKDIV));  in test_reset()
302         g_assert_false(adc_read_con(qts, adc) & CON_EN);  in test_reset()
307 /* Check ADC Calibration works as desired. */
311     const ADC *adc = adc_p;  in test_calibrate()  local
322         sprintf(buf, "-machine quanta-gsj -global npcm7xx-adc.iref=%u", iref);  in test_calibrate()
340             adc_write_input(qts, adc, index, input);  in test_calibrate()
341             adc_write_con(qts, adc, CON_MUX(index) | CON_REFSEL | CON_INT |  in test_calibrate()
343             adc_wait_conv_finished(qts, adc, DEFAULT_CLKDIV);  in test_calibrate()
344             g_assert_cmphex(adc_read_con(qts, adc), ==,  in test_calibrate()
346             output = adc_read_data(qts, adc);  in test_calibrate()
358 static void adc_add_test(const char *name, const ADC* wd,  in adc_add_test()