47 #define DATAX1		0x33	/* R   X-Axis Data 1 */
49 #define DATAY1		0x35	/* R   Y-Axis Data 1 */
51 #define DATAZ1		0x37	/* R   Z-Axis Data 1 */
64 #define DATA_READY	(1 << 7)
65 #define SINGLE_TAP	(1 << 6)
66 #define DOUBLE_TAP	(1 << 5)
67 #define ACTIVITY	(1 << 4)
68 #define INACTIVITY	(1 << 3)
69 #define FREE_FALL	(1 << 2)
70 #define WATERMARK	(1 << 1)
71 #define OVERRUN		(1 << 0)
74 #define ACT_ACDC	(1 << 7)
75 #define ACT_X_EN	(1 << 6)
76 #define ACT_Y_EN	(1 << 5)
77 #define ACT_Z_EN	(1 << 4)
78 #define INACT_ACDC	(1 << 3)
79 #define INACT_X_EN	(1 << 2)
80 #define INACT_Y_EN	(1 << 1)
81 #define INACT_Z_EN	(1 << 0)
84 #define SUPPRESS	(1 << 3)
85 #define TAP_X_EN	(1 << 2)
86 #define TAP_Y_EN	(1 << 1)
87 #define TAP_Z_EN	(1 << 0)
90 #define ACT_X_SRC	(1 << 6)
91 #define ACT_Y_SRC	(1 << 5)
92 #define ACT_Z_SRC	(1 << 4)
93 #define ASLEEP		(1 << 3)
94 #define TAP_X_SRC	(1 << 2)
95 #define TAP_Y_SRC	(1 << 1)
96 #define TAP_Z_SRC	(1 << 0)
99 #define LOW_POWER	(1 << 4)
103 #define PCTL_LINK	(1 << 5)
104 #define PCTL_AUTO_SLEEP (1 << 4)
105 #define PCTL_MEASURE	(1 << 3)
106 #define PCTL_SLEEP	(1 << 2)
110 #define SELF_TEST	(1 << 7)
111 #define SPI		(1 << 6)
112 #define INT_INVERT	(1 << 5)
113 #define FULL_RES	(1 << 3)
114 #define JUSTIFY		(1 << 2)
117 #define RANGE_PM_4g	1
136 #define FIFO_FIFO	1
139 #define TRIGGER		(1 << 5)
143 #define FIFO_TRIG	(1 << 7)
147 #define XSIGN		(1 << 6)
148 #define YSIGN		(1 << 5)
149 #define ZSIGN		(1 << 4)
150 #define XTAP		(1 << 3)
151 #define YTAP		(1 << 2)
152 #define ZTAP		(1 << 1)
159 #define ADXL346_2D_VALID		(1 << 6)
161 #define ADXL346_3D_VALID		(1 << 3)
164 #define ADXL346_2D_PORTRAIT_NEG		1	/* -X */
172 #define ADXL346_3D_TOP			1	/* +Z */
178 #define ADXL_Y_AXIS			1
181 #define AC_READ(ac, reg)	((ac)->bops->read((ac)->dev, reg))  argument
182 #define AC_WRITE(ac, reg, val)	((ac)->bops->write((ac)->dev, reg, val))  argument
238 static void adxl34x_get_triple(struct adxl34x *ac, struct axis_triple *axis)  in adxl34x_get_triple()  argument
242 	ac->bops->read_block(ac->dev, DATAX0, DATAZ1 - DATAX0 + 1, buf);  in adxl34x_get_triple()
244 	guard(mutex)(&ac->mutex);  in adxl34x_get_triple()
246 	ac->saved.x = (s16) le16_to_cpu(buf[0]);  in adxl34x_get_triple()
247 	axis->x = ac->saved.x;  in adxl34x_get_triple()
249 	ac->saved.y = (s16) le16_to_cpu(buf[1]);  in adxl34x_get_triple()
250 	axis->y = ac->saved.y;  in adxl34x_get_triple()
252 	ac->saved.z = (s16) le16_to_cpu(buf[2]);  in adxl34x_get_triple()
253 	axis->z = ac->saved.z;  in adxl34x_get_triple()
256 static void adxl34x_service_ev_fifo(struct adxl34x *ac)  in adxl34x_service_ev_fifo()  argument
258 	struct adxl34x_platform_data *pdata = &ac->pdata;  in adxl34x_service_ev_fifo()
261 	adxl34x_get_triple(ac, &axis);  in adxl34x_service_ev_fifo()
263 	input_event(ac->input, pdata->ev_type, pdata->ev_code_x,  in adxl34x_service_ev_fifo()
264 		    axis.x - ac->swcal.x);  in adxl34x_service_ev_fifo()
265 	input_event(ac->input, pdata->ev_type, pdata->ev_code_y,  in adxl34x_service_ev_fifo()
266 		    axis.y - ac->swcal.y);  in adxl34x_service_ev_fifo()
267 	input_event(ac->input, pdata->ev_type, pdata->ev_code_z,  in adxl34x_service_ev_fifo()
268 		    axis.z - ac->swcal.z);  in adxl34x_service_ev_fifo()
278 static void adxl34x_send_key_events(struct adxl34x *ac,  in adxl34x_send_key_events()  argument
284 		if (status & (1 << (ADXL_Z_AXIS - i)))  in adxl34x_send_key_events()
285 			input_report_key(ac->input,  in adxl34x_send_key_events()
290 static void adxl34x_do_tap(struct adxl34x *ac,  in adxl34x_do_tap()  argument
293 	adxl34x_send_key_events(ac, pdata, status, true);  in adxl34x_do_tap()
294 	input_sync(ac->input);  in adxl34x_do_tap()
295 	adxl34x_send_key_events(ac, pdata, status, false);  in adxl34x_do_tap()
300 	struct adxl34x *ac = handle;  in adxl34x_irq()  local
301 	struct adxl34x_platform_data *pdata = &ac->pdata;  in adxl34x_irq()
310 		tap_stat = AC_READ(ac, ACT_TAP_STATUS);  in adxl34x_irq()
314 	int_stat = AC_READ(ac, INT_SOURCE);  in adxl34x_irq()
317 		adxl34x_report_key_single(ac->input, pdata->ev_code_ff);  in adxl34x_irq()
320 		dev_dbg(ac->dev, "OVERRUN\n");  in adxl34x_irq()
323 		adxl34x_do_tap(ac, pdata, tap_stat);  in adxl34x_irq()
326 			adxl34x_do_tap(ac, pdata, tap_stat);  in adxl34x_irq()
331 			input_report_key(ac->input,  in adxl34x_irq()
332 					 pdata->ev_code_act_inactivity, 1);  in adxl34x_irq()
334 			input_report_key(ac->input,  in adxl34x_irq()
342 		orient = AC_READ(ac, ORIENT);  in adxl34x_irq()
348 			if (ac->orient2d_saved != orient_code) {  in adxl34x_irq()
349 				ac->orient2d_saved = orient_code;  in adxl34x_irq()
350 				adxl34x_report_key_single(ac->input,  in adxl34x_irq()
358 			orient_code = ADXL346_3D_ORIENT(orient) - 1;  in adxl34x_irq()
360 			if (ac->orient3d_saved != orient_code) {  in adxl34x_irq()
361 				ac->orient3d_saved = orient_code;  in adxl34x_irq()
362 				adxl34x_report_key_single(ac->input,  in adxl34x_irq()
371 			samples = ENTRIES(AC_READ(ac, FIFO_STATUS)) + 1;  in adxl34x_irq()
373 			samples = 1;  in adxl34x_irq()
376 			adxl34x_service_ev_fifo(ac);  in adxl34x_irq()
391 			if (ac->fifo_delay && (samples > 1))  in adxl34x_irq()
396 	input_sync(ac->input);  in adxl34x_irq()
401 static void __adxl34x_disable(struct adxl34x *ac)  in __adxl34x_disable()  argument
407 	AC_WRITE(ac, POWER_CTL, 0);  in __adxl34x_disable()
410 static void __adxl34x_enable(struct adxl34x *ac)  in __adxl34x_enable()  argument
412 	AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);  in __adxl34x_enable()
417 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_suspend()  local
419 	guard(mutex)(&ac->mutex);  in adxl34x_suspend()
421 	if (!ac->suspended && !ac->disabled && ac->opened)  in adxl34x_suspend()
422 		__adxl34x_disable(ac);  in adxl34x_suspend()
424 	ac->suspended = true;  in adxl34x_suspend()
431 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_resume()  local
433 	guard(mutex)(&ac->mutex);  in adxl34x_resume()
435 	if (ac->suspended && !ac->disabled && ac->opened)  in adxl34x_resume()
436 		__adxl34x_enable(ac);  in adxl34x_resume()
438 	ac->suspended = false;  in adxl34x_resume()
446 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_disable_show()  local
448 	return sprintf(buf, "%u\n", ac->disabled);  in adxl34x_disable_show()
455 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_disable_store()  local
463 	guard(mutex)(&ac->mutex);  in adxl34x_disable_store()
465 	if (!ac->suspended && ac->opened) {  in adxl34x_disable_store()
467 			if (!ac->disabled)  in adxl34x_disable_store()
468 				__adxl34x_disable(ac);  in adxl34x_disable_store()
470 			if (ac->disabled)  in adxl34x_disable_store()
471 				__adxl34x_enable(ac);  in adxl34x_disable_store()
475 	ac->disabled = !!val;  in adxl34x_disable_store()
485 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_calibrate_show()  local
487 	guard(mutex)(&ac->mutex);  in adxl34x_calibrate_show()
490 		       ac->hwcal.x * 4 + ac->swcal.x,  in adxl34x_calibrate_show()
491 		       ac->hwcal.y * 4 + ac->swcal.y,  in adxl34x_calibrate_show()
492 		       ac->hwcal.z * 4 + ac->swcal.z);  in adxl34x_calibrate_show()
499 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_calibrate_store()  local
506 	guard(mutex)(&ac->mutex);  in adxl34x_calibrate_store()
508 	ac->hwcal.x -= (ac->saved.x / 4);  in adxl34x_calibrate_store()
509 	ac->swcal.x = ac->saved.x % 4;  in adxl34x_calibrate_store()
511 	ac->hwcal.y -= (ac->saved.y / 4);  in adxl34x_calibrate_store()
512 	ac->swcal.y = ac->saved.y % 4;  in adxl34x_calibrate_store()
514 	ac->hwcal.z -= (ac->saved.z / 4);  in adxl34x_calibrate_store()
515 	ac->swcal.z = ac->saved.z % 4;  in adxl34x_calibrate_store()
517 	AC_WRITE(ac, OFSX, (s8) ac->hwcal.x);  in adxl34x_calibrate_store()
518 	AC_WRITE(ac, OFSY, (s8) ac->hwcal.y);  in adxl34x_calibrate_store()
519 	AC_WRITE(ac, OFSZ, (s8) ac->hwcal.z);  in adxl34x_calibrate_store()
530 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_rate_show()  local
532 	return sprintf(buf, "%u\n", RATE(ac->pdata.data_rate));  in adxl34x_rate_show()
539 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_rate_store()  local
547 	guard(mutex)(&ac->mutex);  in adxl34x_rate_store()
549 	ac->pdata.data_rate = RATE(val);  in adxl34x_rate_store()
550 	AC_WRITE(ac, BW_RATE,  in adxl34x_rate_store()
551 		 ac->pdata.data_rate |  in adxl34x_rate_store()
552 			(ac->pdata.low_power_mode ? LOW_POWER : 0));  in adxl34x_rate_store()
562 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_autosleep_show()  local
565 		ac->pdata.power_mode & (PCTL_AUTO_SLEEP | PCTL_LINK) ? 1 : 0);  in adxl34x_autosleep_show()
572 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_autosleep_store()  local
580 	guard(mutex)(&ac->mutex);  in adxl34x_autosleep_store()
583 		ac->pdata.power_mode |= (PCTL_AUTO_SLEEP | PCTL_LINK);  in adxl34x_autosleep_store()
585 		ac->pdata.power_mode &= ~(PCTL_AUTO_SLEEP | PCTL_LINK);  in adxl34x_autosleep_store()
587 	if (!ac->disabled && !ac->suspended && ac->opened)  in adxl34x_autosleep_store()
588 		AC_WRITE(ac, POWER_CTL, ac->pdata.power_mode | PCTL_MEASURE);  in adxl34x_autosleep_store()
599 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_position_show()  local
601 	guard(mutex)(&ac->mutex);  in adxl34x_position_show()
604 		       ac->saved.x, ac->saved.y, ac->saved.z);  in adxl34x_position_show()
614 	struct adxl34x *ac = dev_get_drvdata(dev);  in adxl34x_write_store()  local
625 	guard(mutex)(&ac->mutex);  in adxl34x_write_store()
626 	AC_WRITE(ac, val >> 8, val & 0xFF);  in adxl34x_write_store()
658 	struct adxl34x *ac = input_get_drvdata(input);  in adxl34x_input_open()  local
660 	guard(mutex)(&ac->mutex);  in adxl34x_input_open()
662 	if (!ac->suspended && !ac->disabled)  in adxl34x_input_open()
663 		__adxl34x_enable(ac);  in adxl34x_input_open()
665 	ac->opened = true;  in adxl34x_input_open()
672 	struct adxl34x *ac = input_get_drvdata(input);  in adxl34x_input_close()  local
674 	guard(mutex)(&ac->mutex);  in adxl34x_input_close()
676 	if (!ac->suspended && !ac->disabled)  in adxl34x_input_close()
677 		__adxl34x_disable(ac);  in adxl34x_input_close()
679 	ac->opened = false;  in adxl34x_input_close()
686 	struct adxl34x *ac;  in adxl34x_probe()  local
697 	ac = devm_kzalloc(dev, sizeof(*ac), GFP_KERNEL);  in adxl34x_probe()
698 	if (!ac)  in adxl34x_probe()
705 	ac->fifo_delay = fifo_delay_default;  in adxl34x_probe()
714 	ac->pdata = *pdata;  in adxl34x_probe()
715 	pdata = &ac->pdata;  in adxl34x_probe()
717 	ac->input = input_dev;  in adxl34x_probe()
718 	ac->dev = dev;  in adxl34x_probe()
719 	ac->irq = irq;  in adxl34x_probe()
720 	ac->bops = bops;  in adxl34x_probe()
722 	mutex_init(&ac->mutex);  in adxl34x_probe()
725 	revid = AC_READ(ac, DEVID);  in adxl34x_probe()
729 		ac->model = 345;  in adxl34x_probe()
732 		ac->model = 346;  in adxl34x_probe()
739 	snprintf(ac->phys, sizeof(ac->phys), "%s/input0", dev_name(dev));  in adxl34x_probe()
741 	input_dev->phys = ac->phys;  in adxl34x_probe()
742 	input_dev->id.product = ac->model;  in adxl34x_probe()
747 	input_set_drvdata(input_dev, ac);  in adxl34x_probe()
749 	if (ac->pdata.ev_type == EV_REL) {  in adxl34x_probe()
770 		ac->int_mask = FREE_FALL;  in adxl34x_probe()
778 	ac->int_mask |= ACTIVITY | INACTIVITY;  in adxl34x_probe()
781 		ac->int_mask |= WATERMARK;  in adxl34x_probe()
783 			ac->pdata.fifo_mode |= FIFO_STREAM;  in adxl34x_probe()
785 		ac->int_mask |= DATA_READY;  in adxl34x_probe()
789 		ac->int_mask |= SINGLE_TAP | DOUBLE_TAP;  in adxl34x_probe()
792 		ac->fifo_delay = false;  in adxl34x_probe()
794 	AC_WRITE(ac, POWER_CTL, 0);  in adxl34x_probe()
796 	error = devm_request_threaded_irq(dev, ac->irq, NULL, adxl34x_irq,  in adxl34x_probe()
797 					  IRQF_ONESHOT, dev_name(dev), ac);  in adxl34x_probe()
799 		dev_err(dev, "irq %d busy?\n", ac->irq);  in adxl34x_probe()
807 	AC_WRITE(ac, OFSX, pdata->x_axis_offset);  in adxl34x_probe()
808 	ac->hwcal.x = pdata->x_axis_offset;  in adxl34x_probe()
809 	AC_WRITE(ac, OFSY, pdata->y_axis_offset);  in adxl34x_probe()
810 	ac->hwcal.y = pdata->y_axis_offset;  in adxl34x_probe()
811 	AC_WRITE(ac, OFSZ, pdata->z_axis_offset);  in adxl34x_probe()
812 	ac->hwcal.z = pdata->z_axis_offset;  in adxl34x_probe()
813 	AC_WRITE(ac, THRESH_TAP, pdata->tap_threshold);  in adxl34x_probe()
814 	AC_WRITE(ac, DUR, pdata->tap_duration);  in adxl34x_probe()
815 	AC_WRITE(ac, LATENT, pdata->tap_latency);  in adxl34x_probe()
816 	AC_WRITE(ac, WINDOW, pdata->tap_window);  in adxl34x_probe()
817 	AC_WRITE(ac, THRESH_ACT, pdata->activity_threshold);  in adxl34x_probe()
818 	AC_WRITE(ac, THRESH_INACT, pdata->inactivity_threshold);  in adxl34x_probe()
819 	AC_WRITE(ac, TIME_INACT, pdata->inactivity_time);  in adxl34x_probe()
820 	AC_WRITE(ac, THRESH_FF, pdata->free_fall_threshold);  in adxl34x_probe()
821 	AC_WRITE(ac, TIME_FF, pdata->free_fall_time);  in adxl34x_probe()
822 	AC_WRITE(ac, TAP_AXES, pdata->tap_axis_control);  in adxl34x_probe()
823 	AC_WRITE(ac, ACT_INACT_CTL, pdata->act_axis_control);  in adxl34x_probe()
824 	AC_WRITE(ac, BW_RATE, RATE(ac->pdata.data_rate) |  in adxl34x_probe()
826 	AC_WRITE(ac, DATA_FORMAT, pdata->data_range);  in adxl34x_probe()
827 	AC_WRITE(ac, FIFO_CTL, FIFO_MODE(pdata->fifo_mode) |  in adxl34x_probe()
832 		AC_WRITE(ac, INT_MAP, ac->int_mask | OVERRUN);  in adxl34x_probe()
835 		AC_WRITE(ac, INT_MAP, 0);  in adxl34x_probe()
838 	if (ac->model == 346 && ac->pdata.orientation_enable) {  in adxl34x_probe()
839 		AC_WRITE(ac, ORIENT_CONF,  in adxl34x_probe()
840 			ORIENT_DEADZONE(ac->pdata.deadzone_angle) |  in adxl34x_probe()
841 			ORIENT_DIVISOR(ac->pdata.divisor_length));  in adxl34x_probe()
843 		ac->orient2d_saved = 1234;  in adxl34x_probe()
844 		ac->orient3d_saved = 1234;  in adxl34x_probe()
856 		ac->pdata.orientation_enable = 0;  in adxl34x_probe()
859 	AC_WRITE(ac, INT_ENABLE, ac->int_mask | OVERRUN);  in adxl34x_probe()
861 	ac->pdata.power_mode &= (PCTL_AUTO_SLEEP | PCTL_LINK);  in adxl34x_probe()
863 	return ac;  in adxl34x_probe()