2 * MX1 touchscreen driver
4 * Author: Nicolas Pitre
5 * Created: September 25, 2006
6 * Copyright: MontaVista Software, Inc.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * This code is heavily based on ucb1x00-*.c copyrighted by Russell King
13 * covering the UCB1100, UCB1200 and UCB1300.. Support for the UCB1400 has
14 * been made separate from ucb1x00-core/ucb1x00-ts on Russell's request.
17 #include <linux/module.h>
18 #include <linux/moduleparam.h>
19 #include <linux/init.h>
20 #include <linux/completion.h>
21 #include <linux/delay.h>
22 #include <linux/input.h>
23 #include <linux/device.h>
24 #include <linux/interrupt.h>
25 #include <linux/suspend.h>
26 #include <linux/slab.h>
27 #include <linux/kthread.h>
28 #include <linux/freezer.h>
31 #include <sound/driver.h>
32 #include <sound/core.h>
33 #include <sound/ac97_codec.h>
35 #include <linux/gameport.h> //bonus XXX
37 #include <linux/platform_device.h>
43 * linux/drivers/misc/mx1ts.h
45 * Copyright (C) 2003 Blue Mug, Inc. for Motorola, Inc.
47 * This program is free software; you can redistribute it and/or modify
48 * it under the terms of the GNU General Public License version 2 as
49 * published by the Free Software Foundation.
53 /* Interrupt numbers */
54 #define ASP_COMPARE_IRQ 5
55 #define ASP_PENDATA_IRQ 33
56 #define ASP_TOUCH_IRQ 46
58 /* Analog signal processor (ASP) control registers */
59 #define ASP_BASE_ADDR 0x00215000
61 #define ASP_ACNTLCR (0x10) /* Control register */
62 #define ASP_PSMPLRG (0x14) /* Pen A/D sampe rate control */
63 #define ASP_CMPCNTL (0x30) /* Compare control register */
64 #define ASP_ICNTLR (0x18) /* Interrupt control register */
65 #define ASP_ISTATR (0x1C) /* Interrupt status register */
66 #define ASP_PADFIFO (0x00) /* Pen sample FIFO */
67 #define ASP_CLKDIV (0x2C) /* Clock divide register */
69 /* ASP control register bits */
70 #define ASP_CLKEN (1 << 25) /* Clock enable */
71 #define ASP_SWRST (1 << 23) /* Software reset */
72 #define ASP_U_SEL (1 << 21) /* U-channel resistor select */
73 #define ASP_AZ_SEL (1 << 20) /* Auto-zero position select */
74 #define ASP_LVM (1 << 19) /* Low voltage output */
75 #define ASP_NM (1 << 18) /* Normal voltage output */
76 #define ASP_HPM (1 << 17) /* High voltage output */
77 #define ASP_GLO (1 << 16) /* Low gain enable */
78 #define ASP_AZE (1 << 15) /* Auto-zero enable */
79 #define ASP_AUTO (1 << 14) /* Auto sampling */
80 #define ASP_SW8 (1 << 11) /* Switch control 8 */
81 #define ASP_SW7 (1 << 10)
82 #define ASP_SW6 (1 << 9)
83 #define ASP_SW5 (1 << 8)
84 #define ASP_SW4 (1 << 7)
85 #define ASP_SW3 (1 << 6)
86 #define ASP_SW2 (1 << 5)
87 #define ASP_SW1 (1 << 4) /* Switch control 1 */
88 #define ASP_VDAE (1 << 3) /* Voice D/A enable */
89 #define ASP_VADE (1 << 2) /* Voice A/D enable */
90 #define ASP_PADE (1 << 1) /* Pen A/D enable */
91 #define ASP_BGE (1 << 0) /* Bandgap enable */
93 #define ASP_MODE_MASK 0x00003000
94 #define ASP_MODE_NONE 0x00000000
95 #define ASP_MODE_ONLY_X 0x00001000
96 #define ASP_MODE_ONLY_Y 0x00002000
97 #define ASP_MODE_ONLY_U 0x00003000
99 /* ASP Pen A/D sample rate control register */
100 #define ASP_DMCNT_MASK (0x00007000) /* Decimation ratio count */
101 #define ASP_DMCNT_SCALE (12)
102 #define ASP_BIT_SELECT_MASK (0x00000C00) /* Bit select */
103 #define ASP_BIT_SELECT_SCALE (10)
104 #define ASP_IDLECNT_MASK (0x000003F0) /* Idle count */
105 #define ASP_IDLECNT_SCALE (4)
106 #define ASP_DSCNT_MASK (0x0000000F) /* Data setup count */
107 #define ASP_DSCNT_SCALE (0)
109 /* ASP compare control register */
110 #define ASP_INT (1 << 19) /* Interrupt status */
111 #define ASP_CC (1 << 18) /* Trigger on greater than */
112 #define ASP_INSEL_MASK (0x00030000)
113 #define ASP_INSEL_DISABLE (0x00000000)
114 #define ASP_INSEL_X (0x00010000)
115 #define ASP_INSEL_Y (0x00020000)
116 #define ASP_INSEL_U (0x00030000)
117 #define ASP_COMPARE_VAL_MASK (0x0000FFFF)
118 #define ASP_COMPARE_VAL_SCALE (0)
120 /* ASP interrupt control register bits */
121 #define ASP_PUIE (1 << 10) /* Pen up XXX undocumented */
122 #define ASP_VDDMAE (1 << 8) /* VDAC FIFO empty DMA */
123 #define ASP_VADMAE (1 << 7) /* VADC FIFO full DMA */
124 #define ASP_POL (1 << 6) /* Pen interrupt polarity */
125 #define ASP_EDGE (1 << 5) /* Edge trigger enable */
126 #define ASP_PIRQE (1 << 4) /* Pen interrupt enable */
127 #define ASP_VDAFEE (1 << 3) /* VDAC FIFO empty interrupt */
128 #define ASP_VADFFE (1 << 2) /* VADC FIFO full interrupt */
129 #define ASP_PFFE (1 << 1) /* Pen FIFO full interrupt */
130 #define ASP_PDRE (1 << 0) /* Pen data ready interrupt */
132 /* ASP interrupt/error status register bits */
133 #define ASP_PUIS (1 << 10) /* Pen-up Status,event-> clear by 1 */
134 #define ASP_BGR (1 << 9) /* Bandgap ready */
135 #define ASP_VOV (1 << 8) /* Voice sample data overflow */
136 #define ASP_POV (1 << 7) /* Pen sample data overflow */
137 #define ASP_PEN (1 << 6) /* Pen interrupt */
138 #define ASP_VDAFF (1 << 5) /* VDAC FIFO full */
139 #define ASP_VDAFE (1 << 4) /* VDAC FIFO empty */
140 #define ASP_VADFF (1 << 3) /* VADC FIFO full */
141 #define ASP_VADDR (1 << 2) /* VADC data ready */
142 #define ASP_PFF (1 << 1) /* Pen sample FIFO full */
143 #define ASP_PDR (1 << 0) /* Pen data ready */
145 /* ASP Clock divide register */
146 #define ASP_PADC_CLK_MASK (0x0000001F)
147 #define ASP_PADC_CLK_SCALE (0)
148 #define ASP_VADC_CLK_MASK (0x000003E0)
149 #define ASP_VADC_CLK_SCALE (5)
150 #define ASP_VDAC_CLK_MASK (0x00003C00)
151 #define ASP_VDAC_CLK_SCALE (10)
153 #define DEV_IRQ_ID "mx1-ts"
156 struct input_dev *ts_idev;
157 struct resource pamet;
160 wait_queue_head_t ts_wait;
161 struct task_struct *ts_task;
163 unsigned int irq_pending;
164 unsigned int ts_restart:1;
165 unsigned int adcsync:1;
166 void __iomem* mx1ts_mem;
184 static inline void mx1ts_reg_set_mask(struct mx1ts *mts , unsigned int reg, u32 mask)
187 val = __raw_readl(mts->mx1ts_mem+reg);
189 __raw_writel(val, mts->mx1ts_mem+reg );
192 static inline void mx1ts_reg_clear_mask(struct mx1ts *mts , unsigned int reg, u32 mask)
195 val = __raw_readl(mts->mx1ts_mem+reg);
197 __raw_writel(val, mts->mx1ts_mem+reg );
200 static inline void mx1ts_reg_write(struct mx1ts *mts, unsigned int reg, unsigned int val)
202 __raw_writel(val, mts->mx1ts_mem+reg);
203 printk("mx1_touchscreen: zapisuji do : %p hodnotu %x\n",mts->mx1ts_mem+reg, val);
207 static inline unsigned int mx1ts_reg_read(struct mx1ts *mts, unsigned int reg)
211 out = __raw_readl( mts->mx1ts_mem + reg );
212 /*printk("mx1_touchscreen: ctu z %p : %d \n",mts->mx1ts_mem + reg, out);*/
217 static inline void mx1ts_flush_fifo(struct mx1ts *mts)
220 for (i = 0; i < 12; i++)
221 if (mx1ts_reg_read(mts, ASP_ISTATR) & (ASP_PFF | ASP_PDR))
222 mx1ts_reg_read(mts, ASP_PADFIFO);
225 static void mx1ts_enable_auto_sample(struct mx1ts *mts)
229 mx1ts_flush_fifo(mts);
231 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
233 /* Set the mode to X then Y */
234 value &= ~ASP_MODE_MASK;
235 value |= ASP_MODE_ONLY_Y;
237 /* Enable auto zero. */
240 /* Enable auto sample. */
243 /* Enable pen A/D. */
245 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
247 /* Enable pen data ready and full interrupt. */
248 value = mx1ts_reg_read(mts, ASP_ICNTLR);
249 value |= ASP_PFFE | ASP_PDRE;
250 mx1ts_reg_write(mts, ASP_ICNTLR, value);
254 static void mx1ts_disable_auto_sample(struct mx1ts *mts)
258 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
260 /* Set the mode to none */
261 value &= ~ASP_MODE_MASK;
263 /* Disable auto zero. */
266 /* Disable auto sample. */
269 /* Disable pen A/D. */
271 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
273 /* Disable pen data ready and full interrupt. */
274 value = mx1ts_reg_read(mts, ASP_ICNTLR);
275 value &= ~(ASP_PFFE | ASP_PDRE);
276 mx1ts_reg_write(mts, ASP_ICNTLR, value);
279 static void mx1ts_enable_pen_touch_interrupt(struct mx1ts *mts)
283 /* Enable pen touch interrupt. */
284 value = mx1ts_reg_read(mts, ASP_ICNTLR);
285 value |= ASP_EDGE | ASP_PIRQE;
286 mx1ts_reg_write(mts, ASP_ICNTLR, value);
289 static void mx1ts_disable_pen_touch_interrupt(struct mx1ts *mts)
293 /* Enable pen touch interrupt. */
294 value = mx1ts_reg_read(mts, ASP_ICNTLR);
296 mx1ts_reg_write(mts, ASP_ICNTLR, value);
299 static void mx1ts_enable_pen_up_interrupt(struct mx1ts *mts)
303 /* Enable pen up interrupt. XXX: This feature is undocumented. */
304 value = mx1ts_reg_read(mts, ASP_ICNTLR);
306 mx1ts_reg_write(mts, ASP_ICNTLR, value);
309 static void mx1ts_disable_pen_up_interrupt(struct mx1ts *mts)
313 /* Enable pen up interrupt. */
314 value = mx1ts_reg_read(mts, ASP_ICNTLR);
316 mx1ts_reg_write(mts, ASP_ICNTLR, value);
321 static void mx1ts_start_auto_calibration(struct mx1ts *mts)
325 mts->auto_calibration = 1;
327 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
329 /* Set the mode to X then Y */
330 value &= ~ASP_MODE_MASK;
331 value |= ASP_MODE_ONLY_X;
333 /* Enable auto zero. */
336 /* Enable auto calibrate. XXX: Undocumented bitfield. */
339 /* Enable auto sample. */
342 /* Enable pen A/D. */
344 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
346 /* Enable pen data ready and full interrupt. */
347 value = mx1ts_reg_read(mts, ASP_ICNTLR);
348 value |= ASP_PFFE | ASP_PDRE | ASP_PUIE;
349 mx1ts_reg_write(mts, ASP_ICNTLR, value);
352 static void mx1ts_reset_asp(struct mx1ts *mts)
356 mx1ts_flush_fifo(mts);
358 /* Soft reset the ASP module */
359 mx1ts_reg_write(mts, ASP_ACNTLCR, ASP_SWRST);
360 /* Read back the reset value of the control register */
361 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
363 /* Enable the clock and wait for a short while */
365 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
368 /* Set the value of the conrtol register. */
369 value = ASP_CLKEN | ASP_NM | ASP_SW6 | ASP_BGE;
370 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
372 /* Set the clock divide ratio to 2. */
373 mx1ts_reg_write(mts, ASP_CLKDIV, 0x01);
375 /* Set the sample rate control register. These values should yield
376 * about 150 samples per second, which seems to give good smooth
378 value = (0x2 << ASP_DMCNT_SCALE) | /* Decimation ratio is 3 */
379 (0x1 << ASP_IDLECNT_SCALE) | /* Idle count is 1 clock */
380 (0x2 << ASP_DSCNT_SCALE); /* Data setup is 2 clocks */
381 mx1ts_reg_write(mts, ASP_PSMPLRG, value);
383 /* Disable the compare function. */
384 mx1ts_reg_write(mts, ASP_CMPCNTL, 0);
387 static void mx1ts_evt_add(struct input_dev *idev, u8 p , u16 x, u16 y)
389 input_report_key(idev, BTN_TOUCH, p);
390 input_report_abs(idev, ABS_X, x);
391 input_report_abs(idev, ABS_Y, y);
392 /* input_report_abs(idev, ABS_PRESSURE, pressure);*/
393 printk(KERN_ERR "P %i X %i Y %i.\n", p, x, y);
398 * Handle the pen data ready interrupt, generated when pen data is
401 /*static irqreturn_t mx1ts_pendata_irq(int irq, void *dev_id)*/
402 static irqreturn_t mx1ts_pendata_irq(int irq, struct mx1ts *mts)
406 static unsigned int auto_zero, pen_x, pen_y, pen_u;
408 /*struct mx1ts *mts = (struct mx1_ts *) dev_id;*/
413 /* printk("<1> mx1_touchscreen: mx1_pendata_irq interrupt recived from struct %p\n", mts);*/
415 if (mx1ts_reg_read(mts, ASP_ISTATR) & ASP_PUIS) {
416 mx1ts_reg_set_mask(mts, ASP_ISTATR, ASP_PUIS);
418 mx1ts_disable_auto_sample(mts);
419 mx1ts_disable_pen_up_interrupt(mts);
420 mx1ts_enable_pen_touch_interrupt(mts);
422 mx1ts_evt_add(mts, 0, 0, 0);
423 printk(KERN_ERR "Zaplnena fifo.\n");
424 mx1ts_flush_fifo(mts);
429 if (mts->auto_calibration) {
432 mts->cal_auto_zero = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
433 mts->cal_range_x = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
434 mts->cal_range_y = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
436 if ((mts->cal_auto_zero >= mts->cal_range_x) ||
437 (mts->cal_auto_zero >= mts->cal_range_y)) {
439 printk(KERN_ERR "Invalid data.\n");
440 mx1ts_start_auto_calibration(mts);
441 return IRQ_NONE; /* return IRQ_HANDLED; */
445 mts->cal_range_x -= mts->cal_auto_zero;
446 mts->cal_range_y -= mts->cal_auto_zero;
448 printk(KERN_ERR "Kalibrace cal_auto_zero %i.\n",mts->cal_auto_zero);
449 printk(KERN_ERR "Kalibrace cal_range_x %i.\n",mts->cal_range_x);
450 printk(KERN_ERR "Kalibrace cal_range_y %i.\n",mts->cal_range_y);
452 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
453 value &= ~0x04000000; // Undocumented.
454 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
456 mts->auto_calibration = 0;
458 mx1ts_enable_auto_sample(mts);
460 // There could be more than one sample in the FIFO, but we're
461 // only going to read one per call. The interrupt will be
462 // generated as long as there is data in the FIFO.
464 if ((mx1ts_reg_read(mts, ASP_ISTATR) & ASP_PDR) != ASP_PDR) {
465 return IRQ_NONE; /* TODO je to tak? */
468 auto_zero = mx1ts_reg_read(mts, ASP_PADFIFO);
469 if (auto_zero > (mts->cal_auto_zero + 0x200)) {
470 return IRQ_HANDLED; /* TODO asi se nic nedeje */
473 pen_x = mx1ts_reg_read(mts, ASP_PADFIFO);
474 pen_y = mx1ts_reg_read(mts, ASP_PADFIFO);
475 pen_u = mx1ts_reg_read(mts, ASP_PADFIFO);
477 pen_x = (u32)(((pen_x - auto_zero) << 16) /
479 pen_y = (u32)(((pen_y - auto_zero) << 16) /
482 mx1ts_evt_add(mts, 1, pen_x, pen_y);
487 /* static void mx1ts_pokus_zapnout(struct mx1ts *mts) {
488 mx1ts_reg_write(mts, ASP_CLKDIV, 0x1F); //clok divide register
489 mx1ts_reg_write(mts, ASP_ICNTLR , ASP_PUIE | ASP_PDRE | ASP_PFFE | ASP_EDGE | ASP_PIRQE); //interupt control register //0X00000833
490 mx1ts_reg_write(mts, ASP_PSMPLRG, 0x0000487F); //pen a/d sample rate control register
491 mx1ts_reg_write(mts,ASP_ACNTLCR, ASP_CLKEN | ASP_AZE | ASP_AUTO | (10<<12) | 3); //control register
495 static void mx1ts_enable_pen_up_irq(struct mx1ts *mts)
498 printk(KERN_ERR "Pen up irq.\n");
500 value = mx1ts_reg_read(mts, ASP_ICNTLR);
502 mx1ts_reg_write(mts, ASP_ICNTLR, value);
506 * Handle the touch interrupt, generated when the pen is pressed/
510 static irqreturn_t mx1ts_touch_irq(int irq, void *dev_id)
512 struct mx1ts *mts = (struct mx1ts *) dev_id;
514 printk(KERN_ERR "Prijat touch irq \n");
516 /* Clear the interrupt. */
517 mx1ts_reg_set_mask(mts, ASP_ISTATR, ASP_PEN);
519 mx1ts_disable_pen_touch_interrupt(mts);
520 mx1ts_start_auto_calibration(mts);
521 mx1ts_enable_pen_up_interrupt(mts);
526 static inline int mx1ts_enable_irqs(struct mx1ts *mts) //zaregistruje preruseni
529 result = request_irq(ASP_PENDATA_IRQ,
535 printk(KERN_ERR "Couldn't request pen data IRQ.\n");
539 result = request_irq(ASP_TOUCH_IRQ,
545 printk(KERN_ERR "Couldn't request pen touch IRQ.\n");
546 free_irq(ASP_PENDATA_IRQ, mts);
554 static int mx1ts_on(struct mx1ts *mts)
558 if(!request_mem_region(ASP_BASE_ADDR, 0x38 , "mx1ts")) {
559 printk(KERN_ERR "mx1ts: request_mem_region \tFAILED\n");
563 printk("<1>mx1ts: request_mem_region \tOK\n");
565 mts->mx1ts_mem = ioremap ( ASP_BASE_ADDR, 0x38);
567 printk("<1>mx1ts: memory remaped on %p \n", mts->mx1ts_mem);
571 printk("<1>mx1ts: enabling irqs\n");
572 if ((ret = mx1ts_enable_irqs(mts)))
574 printk("<1>mx1ts: irqs enabled \tOK\n");
577 mx1ts_reset_asp(mts);
578 printk("<1>mx1ts: reset\tOK\n");
580 mx1ts_enable_pen_touch_interrupt(mts);
581 printk("<1>mx1ts: zapnuti touch interrupt\n");
585 static int mx1ts_close(struct platform_device *dev)
590 static int mx1ts_open(struct platform_device *dev)
595 static int mx1ts_probe(struct platform_device *dev)
598 //struct mx1ts *mts= &mx1_ts;
600 struct input_dev *idev;
601 int error, id, x_res, y_res;
603 // mx1ts_disable_pen_touch_interrupt();
604 // mx1ts_start_auto_calibration();
605 // mx1ts_enable_pen_up_interrupt();
607 mts = kzalloc(sizeof(struct mx1ts), GFP_KERNEL); //alokuje pamet
608 idev = input_allocate_device();
622 //ucb->adcsync = adcsync;
623 //ucb->ac97 = to_ac97_t(dev);
624 init_waitqueue_head(&mts->ts_wait);
626 /* id = mx1ts_reg_read(ucb, UCB_ID);
627 if (id != UCB_ID_1400) {
632 error = mx1ts_detect_irq(ucb);
634 printk(KERN_ERR "UCB1400: IRQ probe failed\n");
638 error = request_irq(ucb->irq, mx1ts_hard_irq, IRQF_TRIGGER_RISING,
641 printk(KERN_ERR "mx1ts: unable to grab irq%d: %d\n",
645 printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);*/
647 // input_set_drvdata(idev, mx1_ts);
649 idev->dev.parent = &dev->dev;
650 idev->name = "MX1 touchscreen interface";
651 idev->id.vendor = (unsigned int) 345;//mx1ts_reg_read(mx1_ts, AC97_VENDOR_ID1);
652 idev->id.product = id;
653 idev->open = mx1ts_open;
654 idev->close = mx1ts_close;
655 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
656 idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
658 //idev->bustype = BUS_HOST;
660 printk("<1> mx1ts: setting idev struct \tOK\t");
662 /* mx1ts_adc_enable(ucb);
663 x_res = mx1ts_read_xres(ucb);
664 y_res = mx1ts_read_yres(ucb);
665 mx1ts_adc_disable(ucb);
666 printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);*/
668 input_set_abs_params(idev, ABS_X, 0, x_res, 0, 0);
669 input_set_abs_params(idev, ABS_Y, 0, y_res, 0, 0);
670 input_set_abs_params(idev, ABS_PRESSURE, 0, 0, 0, 0);
672 // error = input_register_device(idev);
674 // goto err_free_irq;
676 // dev_set_drvdata(dev, ucb);
680 // free_irq(ucb->irq, ucb);
682 printk("<1> mx1ts: chyba pri nastavovani irq \n");
683 input_free_device(idev);
692 static int mx1ts_remove(struct platform_device *dev)
694 struct mx1_ts *mts = &mx1_ts;
696 release_mem_region(ASP_BASE_ADDR, 0x40);
697 iounmap(mx1_ts.mx1ts_mem);
698 free_irq(ASP_PENDATA_IRQ, mts);
699 free_irq(ASP_TOUCH_IRQ, mts);
701 //input_free_device(mts->ts_idev);
704 printk("<1> Removing driver \tOK\n");
710 static int mx1ts_resume(struct platform_device *dev)
715 /* inicializace ovladace a driveru (insmod, rmmmod ) */
717 static struct platform_driver mx1ts_driver = {
718 .probe = mx1ts_probe,
719 .remove = mx1ts_remove,
720 .resume = mx1ts_resume,
723 .owner = THIS_MODULE,
727 static struct resource mx1ts_resources[] = {
729 .start = ASP_BASE_ADDR + 0,
730 .end = ASP_BASE_ADDR + 0x37,
731 .flags = IORESOURCE_MEM,
734 .start = ASP_PENDATA_IRQ,
735 .end = ASP_PENDATA_IRQ,
736 .flags = IORESOURCE_IRQ,
739 .start = ASP_TOUCH_IRQ,
740 .end = ASP_TOUCH_IRQ,
741 .flags = IORESOURCE_IRQ,
745 static struct platform_device mx1ts_device = {
748 .num_resources = ARRAY_SIZE(mx1ts_resources),
749 .resource = mx1ts_resources,
755 static int __init mx1ts_init(void)
759 error = platform_device_register(&mx1ts_device);
761 printk(KERN_ERR "PiMX1_touchsceen: device registration failed\n");
766 error = platform_driver_register(&mx1ts_driver);
768 printk(KERN_ERR "mx1_touchscreen: failed to register touchscreen driver, error: %d\n", error);
769 platform_device_unregister(&mx1ts_device);
778 static void __exit mx1ts_exit(void)
780 platform_driver_unregister(&mx1ts_driver);
781 platform_device_unregister(&mx1ts_device);
786 //module_param(adcsync, bool, 0444);
787 //MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
789 //module_param(ts_delay, int, 0444);
790 //MODULE_PARM_DESC(ts_delay, "Delay between panel setup and position read. Default = 55us.");
792 //module_param(ts_delay_pressure, int, 0444);
793 //MODULE_PARM_DESC(ts_delay_pressure,
794 // "delay between panel setup and pressure read. Default = 0us.");
796 module_init(mx1ts_init);
797 module_exit(mx1ts_exit);
800 MODULE_DESCRIPTION("MX1 touchscreen driver");
801 MODULE_AUTHOR("Radek Pupák (pupakr1@fel.cvut.cz)");
802 MODULE_LICENSE("GPL");