49 struct w90p910_ts {  struct
59 static void w90p910_report_event(struct w90p910_ts *w90p910_ts, bool down)  in w90p910_report_event()  argument
61 	struct input_dev *dev = w90p910_ts->input;  in w90p910_report_event()
65 				 __raw_readl(w90p910_ts->ts_reg + 0x0c));  in w90p910_report_event()
67 				 __raw_readl(w90p910_ts->ts_reg + 0x10));  in w90p910_report_event()
74 static void w90p910_prepare_x_reading(struct w90p910_ts *w90p910_ts)  in w90p910_prepare_x_reading()  argument
78 	__raw_writel(ADC_TSC_X, w90p910_ts->ts_reg + 0x04);  in w90p910_prepare_x_reading()
79 	ctlreg = __raw_readl(w90p910_ts->ts_reg);  in w90p910_prepare_x_reading()
82 	__raw_writel(ctlreg, w90p910_ts->ts_reg);  in w90p910_prepare_x_reading()
84 	w90p910_ts->state = TS_WAIT_X_COORD;  in w90p910_prepare_x_reading()
87 static void w90p910_prepare_y_reading(struct w90p910_ts *w90p910_ts)  in w90p910_prepare_y_reading()  argument
91 	__raw_writel(ADC_TSC_Y, w90p910_ts->ts_reg + 0x04);  in w90p910_prepare_y_reading()
92 	ctlreg = __raw_readl(w90p910_ts->ts_reg);  in w90p910_prepare_y_reading()
95 	__raw_writel(ctlreg, w90p910_ts->ts_reg);  in w90p910_prepare_y_reading()
97 	w90p910_ts->state = TS_WAIT_Y_COORD;  in w90p910_prepare_y_reading()
100 static void w90p910_prepare_next_packet(struct w90p910_ts *w90p910_ts)  in w90p910_prepare_next_packet()  argument
104 	ctlreg = __raw_readl(w90p910_ts->ts_reg);  in w90p910_prepare_next_packet()
107 	__raw_writel(ctlreg, w90p910_ts->ts_reg);  in w90p910_prepare_next_packet()
109 	w90p910_ts->state = TS_WAIT_NEW_PACKET;  in w90p910_prepare_next_packet()
114 	struct w90p910_ts *w90p910_ts = dev_id;  in w90p910_ts_interrupt()  local
117 	spin_lock_irqsave(&w90p910_ts->lock, flags);  in w90p910_ts_interrupt()
119 	switch (w90p910_ts->state) {  in w90p910_ts_interrupt()
125 		del_timer(&w90p910_ts->timer);  in w90p910_ts_interrupt()
126 		w90p910_prepare_x_reading(w90p910_ts);  in w90p910_ts_interrupt()
131 		w90p910_prepare_y_reading(w90p910_ts);  in w90p910_ts_interrupt()
135 		w90p910_report_event(w90p910_ts, true);  in w90p910_ts_interrupt()
136 		w90p910_prepare_next_packet(w90p910_ts);  in w90p910_ts_interrupt()
137 		mod_timer(&w90p910_ts->timer, jiffies + msecs_to_jiffies(100));  in w90p910_ts_interrupt()
144 	spin_unlock_irqrestore(&w90p910_ts->lock, flags);  in w90p910_ts_interrupt()
151 	struct w90p910_ts *w90p910_ts = (struct w90p910_ts *) data;  in w90p910_check_pen_up()  local
154 	spin_lock_irqsave(&w90p910_ts->lock, flags);  in w90p910_check_pen_up()
156 	if (w90p910_ts->state == TS_WAIT_NEW_PACKET &&  in w90p910_check_pen_up()
157 	    !(__raw_readl(w90p910_ts->ts_reg + 0x04) & ADC_DOWN)) {  in w90p910_check_pen_up()
159 		w90p910_report_event(w90p910_ts, false);  in w90p910_check_pen_up()
162 	spin_unlock_irqrestore(&w90p910_ts->lock, flags);  in w90p910_check_pen_up()
167 	struct w90p910_ts *w90p910_ts = input_get_drvdata(dev);  in w90p910_open()  local
171 	clk_enable(w90p910_ts->clk);  in w90p910_open()
173 	__raw_writel(ADC_RST1, w90p910_ts->ts_reg);  in w90p910_open()
175 	__raw_writel(ADC_RST0, w90p910_ts->ts_reg);  in w90p910_open()
179 	val = __raw_readl(w90p910_ts->ts_reg + 0x04);  in w90p910_open()
180 	__raw_writel(val & TSC_FOURWIRE, w90p910_ts->ts_reg + 0x04);  in w90p910_open()
181 	__raw_writel(ADC_DELAY, w90p910_ts->ts_reg + 0x08);  in w90p910_open()
183 	w90p910_ts->state = TS_WAIT_NEW_PACKET;  in w90p910_open()
187 	val = __raw_readl(w90p910_ts->ts_reg);  in w90p910_open()
189 	__raw_writel(val, w90p910_ts->ts_reg);  in w90p910_open()
196 	struct w90p910_ts *w90p910_ts = input_get_drvdata(dev);  in w90p910_close()  local
201 	spin_lock_irq(&w90p910_ts->lock);  in w90p910_close()
203 	w90p910_ts->state = TS_IDLE;  in w90p910_close()
205 	val = __raw_readl(w90p910_ts->ts_reg);  in w90p910_close()
207 	__raw_writel(val, w90p910_ts->ts_reg);  in w90p910_close()
209 	spin_unlock_irq(&w90p910_ts->lock);  in w90p910_close()
212 	del_timer_sync(&w90p910_ts->timer);  in w90p910_close()
215 	clk_disable(w90p910_ts->clk);  in w90p910_close()
220 	struct w90p910_ts *w90p910_ts;  in w90x900ts_probe()  local
225 	w90p910_ts = kzalloc(sizeof(struct w90p910_ts), GFP_KERNEL);  in w90x900ts_probe()
227 	if (!w90p910_ts || !input_dev) {  in w90x900ts_probe()
232 	w90p910_ts->input = input_dev;  in w90x900ts_probe()
233 	w90p910_ts->state = TS_IDLE;  in w90x900ts_probe()
234 	spin_lock_init(&w90p910_ts->lock);  in w90x900ts_probe()
235 	setup_timer(&w90p910_ts->timer, w90p910_check_pen_up,  in w90x900ts_probe()
236 		    (unsigned long)w90p910_ts);  in w90x900ts_probe()
250 	w90p910_ts->ts_reg = ioremap(res->start, resource_size(res));  in w90x900ts_probe()
251 	if (!w90p910_ts->ts_reg) {  in w90x900ts_probe()
256 	w90p910_ts->clk = clk_get(&pdev->dev, NULL);  in w90x900ts_probe()
257 	if (IS_ERR(w90p910_ts->clk)) {  in w90x900ts_probe()
258 		err = PTR_ERR(w90p910_ts->clk);  in w90x900ts_probe()
278 	input_set_drvdata(input_dev, w90p910_ts);  in w90x900ts_probe()
280 	w90p910_ts->irq_num = platform_get_irq(pdev, 0);  in w90x900ts_probe()
281 	if (request_irq(w90p910_ts->irq_num, w90p910_ts_interrupt,  in w90x900ts_probe()
282 			IRQF_DISABLED, "w90p910ts", w90p910_ts)) {  in w90x900ts_probe()
287 	err = input_register_device(w90p910_ts->input);  in w90x900ts_probe()
291 	platform_set_drvdata(pdev, w90p910_ts);  in w90x900ts_probe()
295 fail5:	free_irq(w90p910_ts->irq_num, w90p910_ts);  in w90x900ts_probe()
296 fail4:	clk_put(w90p910_ts->clk);  in w90x900ts_probe()
297 fail3:	iounmap(w90p910_ts->ts_reg);  in w90x900ts_probe()
300 	kfree(w90p910_ts);  in w90x900ts_probe()
306 	struct w90p910_ts *w90p910_ts = platform_get_drvdata(pdev);  in w90x900ts_remove()  local
309 	free_irq(w90p910_ts->irq_num, w90p910_ts);  in w90x900ts_remove()
310 	del_timer_sync(&w90p910_ts->timer);  in w90x900ts_remove()
311 	iounmap(w90p910_ts->ts_reg);  in w90x900ts_remove()
313 	clk_put(w90p910_ts->clk);  in w90x900ts_remove()
318 	input_unregister_device(w90p910_ts->input);  in w90x900ts_remove()
319 	kfree(w90p910_ts);  in w90x900ts_remove()