Lines Matching full:st
138 #define AT91_ADC_CHAN(st, ch) \ argument
139 (st->registers->channel_base + (ch * 4))
140 #define at91_adc_readl(st, reg) \ argument
141 (readl_relaxed(st->reg_base + reg))
142 #define at91_adc_writel(st, reg, val) \ argument
143 (writel_relaxed(val, st->reg_base + reg))
249 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_handler() local
257 st->buffer[j] = at91_adc_readl(st, AT91_ADC_CHAN(st, chan->channel)); in at91_adc_trigger_handler()
261 iio_push_to_buffers_with_timestamp(idev, st->buffer, pf->timestamp); in at91_adc_trigger_handler()
266 at91_adc_readl(st, AT91_ADC_LCDR); in at91_adc_trigger_handler()
268 enable_irq(st->irq); in at91_adc_trigger_handler()
276 struct at91_adc_state *st = iio_priv(idev); in handle_adc_eoc_trigger() local
282 st->last_value = at91_adc_readl(st, AT91_ADC_CHAN(st, st->chnb)); in handle_adc_eoc_trigger()
284 at91_adc_readl(st, AT91_ADC_LCDR); in handle_adc_eoc_trigger()
285 st->done = true; in handle_adc_eoc_trigger()
286 wake_up_interruptible(&st->wq_data_avail); in handle_adc_eoc_trigger()
292 struct at91_adc_state *st = iio_priv(idev); in at91_ts_sample() local
298 unsigned int xyz_mask_bits = st->res; in at91_ts_sample()
303 reg = at91_adc_readl(st, AT91_ADC_TSXPOSR); in at91_ts_sample()
314 reg = at91_adc_readl(st, AT91_ADC_TSYPOSR); in at91_ts_sample()
325 reg = at91_adc_readl(st, AT91_ADC_TSPRESSR); in at91_ts_sample()
333 pres = st->ts_pressure_threshold; /* no pen contacted */ in at91_ts_sample()
338 if (pres < st->ts_pressure_threshold) { in at91_ts_sample()
341 input_report_abs(st->ts_input, ABS_X, x); in at91_ts_sample()
342 input_report_abs(st->ts_input, ABS_Y, y); in at91_ts_sample()
343 input_report_abs(st->ts_input, ABS_PRESSURE, pres); in at91_ts_sample()
344 input_report_key(st->ts_input, BTN_TOUCH, 1); in at91_ts_sample()
345 input_sync(st->ts_input); in at91_ts_sample()
356 struct at91_adc_state *st = iio_priv(idev); in at91_adc_rl_interrupt() local
357 u32 status = at91_adc_readl(st, st->registers->status_register); in at91_adc_rl_interrupt()
360 status &= at91_adc_readl(st, AT91_ADC_IMR); in at91_adc_rl_interrupt()
361 if (status & GENMASK(st->num_channels - 1, 0)) in at91_adc_rl_interrupt()
366 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_adc_rl_interrupt()
368 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_rl_interrupt()
370 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN); in at91_adc_rl_interrupt()
371 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_NOPEN in at91_adc_rl_interrupt()
374 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_rl_interrupt()
376 AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val)); in at91_adc_rl_interrupt()
378 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_adc_rl_interrupt()
379 reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC; in at91_adc_rl_interrupt()
380 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_rl_interrupt()
381 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_rl_interrupt()
384 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_NOPEN in at91_adc_rl_interrupt()
386 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN); in at91_adc_rl_interrupt()
387 st->ts_bufferedmeasure = false; in at91_adc_rl_interrupt()
388 input_report_key(st->ts_input, BTN_TOUCH, 0); in at91_adc_rl_interrupt()
389 input_sync(st->ts_input); in at91_adc_rl_interrupt()
390 } else if (status & AT91_ADC_EOC(3) && st->ts_input) { in at91_adc_rl_interrupt()
392 if (st->ts_bufferedmeasure) { in at91_adc_rl_interrupt()
398 input_report_abs(st->ts_input, ABS_X, st->ts_prev_absx); in at91_adc_rl_interrupt()
399 input_report_abs(st->ts_input, ABS_Y, st->ts_prev_absy); in at91_adc_rl_interrupt()
400 input_report_key(st->ts_input, BTN_TOUCH, 1); in at91_adc_rl_interrupt()
401 input_sync(st->ts_input); in at91_adc_rl_interrupt()
403 st->ts_bufferedmeasure = true; in at91_adc_rl_interrupt()
406 st->ts_prev_absx = at91_adc_readl(st, AT91_ADC_CHAN(st, 3)) in at91_adc_rl_interrupt()
408 st->ts_prev_absx /= at91_adc_readl(st, AT91_ADC_CHAN(st, 2)); in at91_adc_rl_interrupt()
410 st->ts_prev_absy = at91_adc_readl(st, AT91_ADC_CHAN(st, 1)) in at91_adc_rl_interrupt()
412 st->ts_prev_absy /= at91_adc_readl(st, AT91_ADC_CHAN(st, 0)); in at91_adc_rl_interrupt()
421 struct at91_adc_state *st = iio_priv(idev); in at91_adc_9x5_interrupt() local
422 u32 status = at91_adc_readl(st, st->registers->status_register); in at91_adc_9x5_interrupt()
428 if (status & GENMASK(st->num_channels - 1, 0)) in at91_adc_9x5_interrupt()
432 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN); in at91_adc_9x5_interrupt()
433 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_NOPEN | in at91_adc_9x5_interrupt()
436 at91_adc_writel(st, st->registers->trigger_register, in at91_adc_9x5_interrupt()
438 AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val)); in at91_adc_9x5_interrupt()
440 at91_adc_writel(st, st->registers->trigger_register, 0); in at91_adc_9x5_interrupt()
441 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_NOPEN | in at91_adc_9x5_interrupt()
443 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN); in at91_adc_9x5_interrupt()
445 input_report_key(st->ts_input, BTN_TOUCH, 0); in at91_adc_9x5_interrupt()
446 input_sync(st->ts_input); in at91_adc_9x5_interrupt()
457 at91_adc_readl(st, AT91_ADC_TSXPOSR); in at91_adc_9x5_interrupt()
458 at91_adc_readl(st, AT91_ADC_TSYPOSR); in at91_adc_9x5_interrupt()
459 at91_adc_readl(st, AT91_ADC_TSPRESSR); in at91_adc_9x5_interrupt()
468 struct at91_adc_state *st = iio_priv(idev); in at91_adc_channel_init() local
474 if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE) in at91_adc_channel_init()
476 else if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_5WIRE) in at91_adc_channel_init()
480 st->channels_mask &= ~rsvd_mask; in at91_adc_channel_init()
482 idev->num_channels = bitmap_weight(&st->channels_mask, in at91_adc_channel_init()
483 st->num_channels) + 1; in at91_adc_channel_init()
493 for_each_set_bit(bit, &st->channels_mask, st->num_channels) { in at91_adc_channel_init()
501 chan->scan_type.realbits = st->res; in at91_adc_channel_init()
524 struct at91_adc_state *st = iio_priv(idev); in at91_adc_get_trigger_value_by_name() local
527 for (i = 0; i < st->trigger_number; i++) { in at91_adc_get_trigger_value_by_name()
552 struct at91_adc_state *st = iio_priv(idev); in at91_adc_configure_trigger() local
553 struct at91_adc_reg_desc *reg = st->registers; in at91_adc_configure_trigger()
554 u32 status = at91_adc_readl(st, reg->trigger_register); in at91_adc_configure_trigger()
559 st->trigger_list, in at91_adc_configure_trigger()
565 st->buffer = kmalloc(idev->scan_bytes, GFP_KERNEL); in at91_adc_configure_trigger()
566 if (st->buffer == NULL) in at91_adc_configure_trigger()
569 at91_adc_writel(st, reg->trigger_register, in at91_adc_configure_trigger()
573 st->num_channels) { in at91_adc_configure_trigger()
575 at91_adc_writel(st, AT91_ADC_CHER, in at91_adc_configure_trigger()
579 at91_adc_writel(st, AT91_ADC_IER, reg->drdy_mask); in at91_adc_configure_trigger()
582 at91_adc_writel(st, AT91_ADC_IDR, reg->drdy_mask); in at91_adc_configure_trigger()
584 at91_adc_writel(st, reg->trigger_register, in at91_adc_configure_trigger()
588 st->num_channels) { in at91_adc_configure_trigger()
590 at91_adc_writel(st, AT91_ADC_CHDR, in at91_adc_configure_trigger()
593 kfree(st->buffer); in at91_adc_configure_trigger()
627 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_init() local
630 st->trig = devm_kcalloc(&idev->dev, in at91_adc_trigger_init()
631 st->trigger_number, sizeof(*st->trig), in at91_adc_trigger_init()
634 if (st->trig == NULL) { in at91_adc_trigger_init()
639 for (i = 0; i < st->trigger_number; i++) { in at91_adc_trigger_init()
640 if (st->trigger_list[i].is_external && !(st->use_external)) in at91_adc_trigger_init()
643 st->trig[i] = at91_adc_allocate_trigger(idev, in at91_adc_trigger_init()
644 st->trigger_list + i); in at91_adc_trigger_init()
645 if (st->trig[i] == NULL) { in at91_adc_trigger_init()
657 iio_trigger_unregister(st->trig[i]); in at91_adc_trigger_init()
658 iio_trigger_free(st->trig[i]); in at91_adc_trigger_init()
666 struct at91_adc_state *st = iio_priv(idev); in at91_adc_trigger_remove() local
669 for (i = 0; i < st->trigger_number; i++) { in at91_adc_trigger_remove()
670 iio_trigger_unregister(st->trig[i]); in at91_adc_trigger_remove()
671 iio_trigger_free(st->trig[i]); in at91_adc_trigger_remove()
690 struct at91_adc_state *st = iio_priv(idev); in at91_adc_read_raw() local
695 mutex_lock(&st->lock); in at91_adc_read_raw()
697 st->chnb = chan->channel; in at91_adc_read_raw()
698 at91_adc_writel(st, AT91_ADC_CHER, in at91_adc_read_raw()
700 at91_adc_writel(st, AT91_ADC_IER, BIT(chan->channel)); in at91_adc_read_raw()
701 at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_START); in at91_adc_read_raw()
703 ret = wait_event_interruptible_timeout(st->wq_data_avail, in at91_adc_read_raw()
704 st->done, in at91_adc_read_raw()
710 at91_adc_writel(st, AT91_ADC_CHDR, in at91_adc_read_raw()
712 at91_adc_writel(st, AT91_ADC_IDR, BIT(chan->channel)); in at91_adc_read_raw()
716 *val = st->last_value; in at91_adc_read_raw()
717 st->last_value = 0; in at91_adc_read_raw()
718 st->done = false; in at91_adc_read_raw()
727 mutex_unlock(&st->lock); in at91_adc_read_raw()
731 *val = st->vref_mv; in at91_adc_read_raw()
743 struct at91_adc_state *st = iio_priv(idev); in at91_adc_of_get_resolution() local
776 st->res = resolutions[i]; in at91_adc_of_get_resolution()
778 st->low_res = true; in at91_adc_of_get_resolution()
780 st->low_res = false; in at91_adc_of_get_resolution()
782 dev_info(&idev->dev, "Resolution used: %u bits\n", st->res); in at91_adc_of_get_resolution()
835 struct at91_adc_state *st, struct device *dev) in at91_adc_probe_dt_ts() argument
849 st->touchscreen_type = prop; in at91_adc_probe_dt_ts()
856 if (!st->caps->has_tsmr) in at91_adc_probe_dt_ts()
860 st->ts_pressure_threshold = prop; in at91_adc_probe_dt_ts()
861 if (st->ts_pressure_threshold) { in at91_adc_probe_dt_ts()
872 struct at91_adc_state *st = iio_priv(idev); in at91_adc_probe_dt() local
881 st->caps = (struct at91_adc_caps *) in at91_adc_probe_dt()
884 st->use_external = of_property_read_bool(node, "atmel,adc-use-external-triggers"); in at91_adc_probe_dt()
891 st->channels_mask = prop; in at91_adc_probe_dt()
893 st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode"); in at91_adc_probe_dt()
900 st->startup_time = prop; in at91_adc_probe_dt()
904 st->sample_hold_time = prop; in at91_adc_probe_dt()
911 st->vref_mv = prop; in at91_adc_probe_dt()
917 st->registers = &st->caps->registers; in at91_adc_probe_dt()
918 st->num_channels = st->caps->num_channels; in at91_adc_probe_dt()
919 st->trigger_number = of_get_child_count(node); in at91_adc_probe_dt()
920 st->trigger_list = devm_kcalloc(&idev->dev, in at91_adc_probe_dt()
921 st->trigger_number, in at91_adc_probe_dt()
924 if (!st->trigger_list) { in at91_adc_probe_dt()
931 struct at91_adc_trigger *trig = st->trigger_list + i; in at91_adc_probe_dt()
952 if (st->caps->has_ts) in at91_adc_probe_dt()
953 return at91_adc_probe_dt_ts(node, st, &idev->dev); in at91_adc_probe_dt()
963 static int at91_adc_probe_pdata(struct at91_adc_state *st, in at91_adc_probe_pdata() argument
971 st->caps = (struct at91_adc_caps *) in at91_adc_probe_pdata()
974 st->use_external = pdata->use_external_triggers; in at91_adc_probe_pdata()
975 st->vref_mv = pdata->vref; in at91_adc_probe_pdata()
976 st->channels_mask = pdata->channels_used; in at91_adc_probe_pdata()
977 st->num_channels = st->caps->num_channels; in at91_adc_probe_pdata()
978 st->startup_time = pdata->startup_time; in at91_adc_probe_pdata()
979 st->trigger_number = pdata->trigger_number; in at91_adc_probe_pdata()
980 st->trigger_list = pdata->trigger_list; in at91_adc_probe_pdata()
981 st->registers = &st->caps->registers; in at91_adc_probe_pdata()
982 st->touchscreen_type = pdata->touchscreen_type; in at91_adc_probe_pdata()
994 struct at91_adc_state *st = input_get_drvdata(dev); in atmel_ts_open() local
996 if (st->caps->has_tsmr) in atmel_ts_open()
997 at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN); in atmel_ts_open()
999 at91_adc_writel(st, AT91_ADC_IER, AT91RL_ADC_IER_PEN); in atmel_ts_open()
1005 struct at91_adc_state *st = input_get_drvdata(dev); in atmel_ts_close() local
1007 if (st->caps->has_tsmr) in atmel_ts_close()
1008 at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN); in atmel_ts_close()
1010 at91_adc_writel(st, AT91_ADC_IDR, AT91RL_ADC_IER_PEN); in atmel_ts_close()
1015 struct at91_adc_state *st = iio_priv(idev); in at91_ts_hw_init() local
1024 st->ts_pendbc = round_up(TOUCH_PEN_DETECT_DEBOUNCE_US * adc_clk_khz / in at91_ts_hw_init()
1027 while (st->ts_pendbc >> ++i) in at91_ts_hw_init()
1029 if (abs(st->ts_pendbc - (1 << i)) < abs(st->ts_pendbc - (1 << (i - 1)))) in at91_ts_hw_init()
1030 st->ts_pendbc = i; in at91_ts_hw_init()
1032 st->ts_pendbc = i - 1; in at91_ts_hw_init()
1034 if (!st->caps->has_tsmr) { in at91_ts_hw_init()
1035 reg = at91_adc_readl(st, AT91_ADC_MR); in at91_ts_hw_init()
1038 reg |= AT91_ADC_PENDBC_(st->ts_pendbc) & AT91_ADC_PENDBC; in at91_ts_hw_init()
1039 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_ts_hw_init()
1042 at91_adc_writel(st, AT91_ADC_TSR, reg); in at91_ts_hw_init()
1044 st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US_RL * in at91_ts_hw_init()
1058 if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE) in at91_ts_hw_init()
1064 reg |= AT91_ADC_TSMR_TSAV_(st->caps->ts_filter_average) in at91_ts_hw_init()
1066 reg |= AT91_ADC_TSMR_PENDBC_(st->ts_pendbc) & AT91_ADC_TSMR_PENDBC; in at91_ts_hw_init()
1071 at91_adc_writel(st, AT91_ADC_TSMR, reg); in at91_ts_hw_init()
1078 at91_adc_writel(st, AT91_ADC_ACR, st->caps->ts_pen_detect_sensitivity in at91_ts_hw_init()
1082 st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US * in at91_ts_hw_init()
1091 struct at91_adc_state *st = iio_priv(idev); in at91_ts_register() local
1110 if (st->caps->has_tsmr) { in at91_ts_register()
1117 if (st->touchscreen_type != ATMEL_ADC_TOUCHSCREEN_4WIRE) { in at91_ts_register()
1130 st->ts_input = input; in at91_ts_register()
1131 input_set_drvdata(input, st); in at91_ts_register()
1140 input_free_device(st->ts_input); in at91_ts_register()
1144 static void at91_ts_unregister(struct at91_adc_state *st) in at91_ts_unregister() argument
1146 input_unregister_device(st->ts_input); in at91_ts_unregister()
1154 struct at91_adc_state *st; in at91_adc_probe() local
1161 st = iio_priv(idev); in at91_adc_probe()
1166 ret = at91_adc_probe_pdata(st, pdev); in at91_adc_probe()
1179 st->irq = platform_get_irq(pdev, 0); in at91_adc_probe()
1180 if (st->irq < 0) in at91_adc_probe()
1183 st->reg_base = devm_platform_ioremap_resource(pdev, 0); in at91_adc_probe()
1184 if (IS_ERR(st->reg_base)) in at91_adc_probe()
1185 return PTR_ERR(st->reg_base); in at91_adc_probe()
1191 at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_SWRST); in at91_adc_probe()
1192 at91_adc_writel(st, AT91_ADC_IDR, 0xFFFFFFFF); in at91_adc_probe()
1194 if (st->caps->has_tsmr) in at91_adc_probe()
1195 ret = request_irq(st->irq, at91_adc_9x5_interrupt, 0, in at91_adc_probe()
1198 ret = request_irq(st->irq, at91_adc_rl_interrupt, 0, in at91_adc_probe()
1205 st->clk = devm_clk_get(&pdev->dev, "adc_clk"); in at91_adc_probe()
1206 if (IS_ERR(st->clk)) { in at91_adc_probe()
1208 ret = PTR_ERR(st->clk); in at91_adc_probe()
1212 ret = clk_prepare_enable(st->clk); in at91_adc_probe()
1219 st->adc_clk = devm_clk_get(&pdev->dev, "adc_op_clk"); in at91_adc_probe()
1220 if (IS_ERR(st->adc_clk)) { in at91_adc_probe()
1222 ret = PTR_ERR(st->adc_clk); in at91_adc_probe()
1226 ret = clk_prepare_enable(st->adc_clk); in at91_adc_probe()
1238 mstrclk = clk_get_rate(st->clk); in at91_adc_probe()
1239 adc_clk = clk_get_rate(st->adc_clk); in at91_adc_probe()
1247 if (!st->startup_time) { in at91_adc_probe()
1252 ticks = (*st->caps->calc_startup_ticks)(st->startup_time, adc_clk_khz); in at91_adc_probe()
1259 if (st->sample_hold_time > 0) in at91_adc_probe()
1260 shtim = round_up((st->sample_hold_time * adc_clk_khz / 1000) in at91_adc_probe()
1265 reg = AT91_ADC_PRESCAL_(prsc) & st->registers->mr_prescal_mask; in at91_adc_probe()
1266 reg |= AT91_ADC_STARTUP_(ticks) & st->registers->mr_startup_mask; in at91_adc_probe()
1267 if (st->low_res) in at91_adc_probe()
1269 if (st->sleep_mode) in at91_adc_probe()
1272 at91_adc_writel(st, AT91_ADC_MR, reg); in at91_adc_probe()
1281 init_waitqueue_head(&st->wq_data_avail); in at91_adc_probe()
1282 mutex_init(&st->lock); in at91_adc_probe()
1289 if (!st->touchscreen_type) { in at91_adc_probe()
1319 if (!st->touchscreen_type) { in at91_adc_probe()
1323 at91_ts_unregister(st); in at91_adc_probe()
1326 clk_disable_unprepare(st->adc_clk); in at91_adc_probe()
1328 clk_disable_unprepare(st->clk); in at91_adc_probe()
1330 free_irq(st->irq, idev); in at91_adc_probe()
1337 struct at91_adc_state *st = iio_priv(idev); in at91_adc_remove() local
1340 if (!st->touchscreen_type) { in at91_adc_remove()
1344 at91_ts_unregister(st); in at91_adc_remove()
1346 clk_disable_unprepare(st->adc_clk); in at91_adc_remove()
1347 clk_disable_unprepare(st->clk); in at91_adc_remove()
1348 free_irq(st->irq, idev); in at91_adc_remove()
1357 struct at91_adc_state *st = iio_priv(idev); in at91_adc_suspend() local
1360 clk_disable_unprepare(st->clk); in at91_adc_suspend()
1368 struct at91_adc_state *st = iio_priv(idev); in at91_adc_resume() local
1370 clk_prepare_enable(st->clk); in at91_adc_resume()