37 				   unsigned long axis,  in touchscreen_set_params()  argument
42 	if (!test_bit(axis, dev->absbit)) {  in touchscreen_set_params()
43 		dev_warn(&dev->dev,  in touchscreen_set_params()
44 			 "DT specifies parameters but the axis %lu is not set up\n",  in touchscreen_set_params()
45 			 axis);  in touchscreen_set_params()
49 	absinfo = &dev->absinfo[axis];  in touchscreen_set_params()
50 	absinfo->maximum = max;  in touchscreen_set_params()
51 	absinfo->fuzz = fuzz;  in touchscreen_set_params()
55  * touchscreen_parse_properties - parse common touchscreen DT properties
58  *	single-touch or multi-touch axes
60  *	axis swap and invert info for use with touchscreen_report_x_y();
70 	struct device *dev = input->dev.parent;  in touchscreen_parse_properties()
71 	unsigned int axis;  in touchscreen_parse_properties()  local
76 	if (!input->absinfo)  in touchscreen_parse_properties()
79 	axis = multitouch ? ABS_MT_POSITION_X : ABS_X;  in touchscreen_parse_properties()
80 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-x",  in touchscreen_parse_properties()
82 								  axis) + 1,  in touchscreen_parse_properties()
84 		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-x",  in touchscreen_parse_properties()
85 						input_abs_get_fuzz(input, axis),  in touchscreen_parse_properties()
88 		touchscreen_set_params(input, axis, maximum - 1, fuzz);  in touchscreen_parse_properties()
90 	axis = multitouch ? ABS_MT_POSITION_Y : ABS_Y;  in touchscreen_parse_properties()
91 	data_present = touchscreen_get_prop_u32(dev, "touchscreen-size-y",  in touchscreen_parse_properties()
93 								  axis) + 1,  in touchscreen_parse_properties()
95 		       touchscreen_get_prop_u32(dev, "touchscreen-fuzz-y",  in touchscreen_parse_properties()
96 						input_abs_get_fuzz(input, axis),  in touchscreen_parse_properties()
99 		touchscreen_set_params(input, axis, maximum - 1, fuzz);  in touchscreen_parse_properties()
101 	axis = multitouch ? ABS_MT_PRESSURE : ABS_PRESSURE;  in touchscreen_parse_properties()
103 						"touchscreen-max-pressure",  in touchscreen_parse_properties()
104 						input_abs_get_max(input, axis),  in touchscreen_parse_properties()
107 						"touchscreen-fuzz-pressure",  in touchscreen_parse_properties()
108 						input_abs_get_fuzz(input, axis),  in touchscreen_parse_properties()
111 		touchscreen_set_params(input, axis, maximum, fuzz);  in touchscreen_parse_properties()
116 	axis = multitouch ? ABS_MT_POSITION_X : ABS_X;  in touchscreen_parse_properties()
118 	prop->max_x = input_abs_get_max(input, axis);  in touchscreen_parse_properties()
119 	prop->max_y = input_abs_get_max(input, axis + 1);  in touchscreen_parse_properties()
120 	prop->invert_x =  in touchscreen_parse_properties()
121 		device_property_read_bool(dev, "touchscreen-inverted-x");  in touchscreen_parse_properties()
122 	prop->invert_y =  in touchscreen_parse_properties()
123 		device_property_read_bool(dev, "touchscreen-inverted-y");  in touchscreen_parse_properties()
124 	prop->swap_x_y =  in touchscreen_parse_properties()
125 		device_property_read_bool(dev, "touchscreen-swapped-x-y");  in touchscreen_parse_properties()
127 	if (prop->swap_x_y)  in touchscreen_parse_properties()
128 		swap(input->absinfo[axis], input->absinfo[axis + 1]);  in touchscreen_parse_properties()
134 			      unsigned int *x, unsigned int *y)  in touchscreen_apply_prop_to_x_y()  argument
136 	if (prop->invert_x)  in touchscreen_apply_prop_to_x_y()
137 		*x = prop->max_x - *x;  in touchscreen_apply_prop_to_x_y()
139 	if (prop->invert_y)  in touchscreen_apply_prop_to_x_y()
140 		*y = prop->max_y - *y;  in touchscreen_apply_prop_to_x_y()
142 	if (prop->swap_x_y)  in touchscreen_apply_prop_to_x_y()
143 		swap(*x, *y);  in touchscreen_apply_prop_to_x_y()
147  * touchscreen_set_mt_pos - Set input_mt_pos coordinates
150  * @x: X coordinate to store in pos
153  * Adjust the passed in x and y values applying any axis inversion and
159 			    unsigned int x, unsigned int y)  in touchscreen_set_mt_pos()  argument
161 	touchscreen_apply_prop_to_x_y(prop, &x, &y);  in touchscreen_set_mt_pos()
162 	pos->x = x;  in touchscreen_set_mt_pos()
163 	pos->y = y;  in touchscreen_set_mt_pos()
168  * touchscreen_report_pos - Report touchscreen coordinates
171  * @x: X coordinate to report
173  * @multitouch: Report coordinates on single-touch or multi-touch axes
175  * Adjust the passed in x and y values applying any axis inversion and
177  * report the resulting coordinates on the input_dev's x and y axis.
181 			    unsigned int x, unsigned int y,  in touchscreen_report_pos()  argument
184 	touchscreen_apply_prop_to_x_y(prop, &x, &y);  in touchscreen_report_pos()
185 	input_report_abs(input, multitouch ? ABS_MT_POSITION_X : ABS_X, x);  in touchscreen_report_pos()
191 MODULE_DESCRIPTION("Device-tree helpers functions for touchscreen devices");