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;
182 static inline void mx1ts_reg_set_mask(struct mx1ts *mts , unsigned int reg, u32 mask)
185 val = __raw_readl(mts->mx1ts_mem+reg);
187 __raw_writel(val, mts->mx1ts_mem+reg );
190 static inline void mx1ts_reg_clear_mask(struct mx1ts *mts , unsigned int reg, u32 mask)
193 val = __raw_readl(mts->mx1ts_mem+reg);
195 __raw_writel(val, mts->mx1ts_mem+reg );
198 static inline void mx1ts_reg_write(struct mx1ts *mts, unsigned int reg, unsigned int val)
200 __raw_writel(val, mts->mx1ts_mem+reg);
201 printk(KERN_ERR "mx1_touchscreen: zapisuji do : %p hodnotu %x\n",mts->mx1ts_mem+reg, val);
205 static inline unsigned int mx1ts_reg_read(struct mx1ts *mts, unsigned int reg)
209 out = __raw_readl( mts->mx1ts_mem + reg );
210 /*printk(KERN_ERR "mx1_touchscreen: ctu z %p : %d \n",mts->mx1ts_mem + reg, out);*/
215 static inline void mx1ts_flush_fifo(struct mx1ts *mts)
218 for (i = 0; i < 12; i++)
219 if (mx1ts_reg_read(mts, ASP_ISTATR) & (ASP_PFF | ASP_PDR))
220 mx1ts_reg_read(mts, ASP_PADFIFO);
223 static void mx1ts_enable_auto_sample(struct mx1ts *mts)
227 mx1ts_flush_fifo(mts);
229 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
231 /* Set the mode to X then Y */
232 value &= ~ASP_MODE_MASK;
233 value |= ASP_MODE_ONLY_Y;
235 /* Enable auto zero. */
238 /* Enable auto sample. */
241 /* Enable pen A/D. */
243 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
245 /* Enable pen data ready and full interrupt. */
246 value = mx1ts_reg_read(mts, ASP_ICNTLR);
247 value |= ASP_PFFE | ASP_PDRE;
248 mx1ts_reg_write(mts, ASP_ICNTLR, value);
252 static void mx1ts_disable_auto_sample(struct mx1ts *mts)
256 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
258 /* Set the mode to none */
259 value &= ~ASP_MODE_MASK;
261 /* Disable auto zero. */
264 /* Disable auto sample. */
267 /* Disable pen A/D. */
269 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
271 /* Disable pen data ready and full interrupt. */
272 value = mx1ts_reg_read(mts, ASP_ICNTLR);
273 value &= ~(ASP_PFFE | ASP_PDRE);
274 mx1ts_reg_write(mts, ASP_ICNTLR, value);
277 static void mx1ts_enable_pen_touch_interrupt(struct mx1ts *mts)
281 /* Enable pen touch interrupt. */
282 value = mx1ts_reg_read(mts, ASP_ICNTLR);
283 value |= /*ASP_POL detekuje zvednuti |*/ ASP_EDGE | ASP_PIRQE;
284 mx1ts_reg_write(mts, ASP_ICNTLR, value);
285 printk(KERN_ERR "mx1_touchscreen: aktivuji pen down interrupt \n");
288 static void mx1ts_disable_pen_touch_interrupt(struct mx1ts *mts)
292 /* Enable pen touch interrupt. */
293 value = mx1ts_reg_read(mts, ASP_ICNTLR);
295 mx1ts_reg_write(mts, ASP_ICNTLR, value);
296 printk(KERN_ERR "mx1_touchscreen: deaktivuji pen down interrupt \n");
299 static void mx1ts_enable_pen_up_interrupt(struct mx1ts *mts)
303 value = mx1ts_reg_read(mts, ASP_ICNTLR);
305 mx1ts_reg_write(mts, ASP_ICNTLR, value);
306 printk(KERN_ERR "mx1_touchscreen: aktivuji pen up interrupt \n");
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);
317 printk(KERN_ERR "mx1_touchscreen: deaktivuji penup interrupt \n");
322 static void mx1ts_start_auto_calibration(struct mx1ts *mts)
326 mts->auto_calibration = 1;
328 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
330 /* Set the mode to X then Y */
331 value &= ~ASP_MODE_MASK;
332 value |= ASP_MODE_ONLY_X;
334 /* Enable auto zero. */
337 /* Enable auto calibrate. XXX: Undocumented bitfield. */
340 /* Enable auto sample. */
343 /* Enable pen A/D. */
345 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
347 /* Enable pen data ready and full interrupt. */
348 value = mx1ts_reg_read(mts, ASP_ICNTLR);
349 value |= ASP_PFFE | ASP_PDRE | ASP_PUIE;
350 mx1ts_reg_write(mts, ASP_ICNTLR, value);
353 static void mx1ts_reset_asp(struct mx1ts *mts)
357 mx1ts_flush_fifo(mts);
359 /* Soft reset the ASP module */
360 mx1ts_reg_write(mts, ASP_ACNTLCR, ASP_SWRST);
361 /* Read back the reset value of the control register */
362 value = mx1ts_reg_read(mts, ASP_ACNTLCR);
364 /* Enable the clock and wait for a short while */
366 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
369 /* Set the value of the conrtol register. */
370 value = ASP_CLKEN | ASP_NM | ASP_SW6 | ASP_BGE;
371 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
373 /* Set the clock divide ratio to 2. */
374 mx1ts_reg_write(mts, ASP_CLKDIV, 0x01);
376 /* Set the sample rate control register. These values should yield
377 * about 150 samples per second, which seems to give good smooth
379 value = (0x2 << ASP_DMCNT_SCALE) | /* Decimation ratio is 3 */
380 (0x1 << ASP_IDLECNT_SCALE) | /* Idle count is 1 clock */
381 (0x2 << ASP_DSCNT_SCALE); /* Data setup is 2 clocks */
382 mx1ts_reg_write(mts, ASP_PSMPLRG, value);
384 /* Disable the compare function. */
385 mx1ts_reg_write(mts, ASP_CMPCNTL, 0);
388 static void mx1ts_evt_add(struct input_dev *idev, u8 p , u16 x, u16 y)
390 input_report_key(idev, BTN_TOUCH, p);
391 input_report_abs(idev, ABS_X, x);
392 input_report_abs(idev, ABS_Y, y);
393 /* input_report_abs(idev, ABS_PRESSURE, pressure);*/
394 /*printk(KERN_ERR "P %i X %i Y %i.\n", p, x, y);*/ /*devprint dev_dbg(zarizeni, co se vypisuje)*/
399 * Handle the pen data ready interrupt, generated when pen data is
402 /*static irqreturn_t mx1ts_pendata_irq(int irq, void *dev_id)*/
403 static irqreturn_t mx1ts_pendata_irq(int irq, void *dev_id)
405 struct mx1ts *mts = (struct mx1ts *)dev_id;
408 static unsigned int auto_zero, pen_x, pen_y, pen_u;
410 /*struct mx1ts *mts = (struct mx1_ts *) dev_id;*/
415 /* printk(KERN_ERR "mx1_touchscreen: mx1_pendata_irq interrupt recived from struct %p\n", mts);*/
417 if (mx1ts_reg_read(mts, ASP_ISTATR) & ASP_PUIS) { /*pen up interupt pending*/
418 mx1ts_reg_set_mask(mts, ASP_ISTATR, ASP_PUIS); /*clearing pen up interupt*/
420 mx1ts_disable_auto_sample(mts);
421 mx1ts_disable_pen_up_interrupt(mts);
422 mx1ts_enable_pen_touch_interrupt(mts);
424 if(mts->is_open) /*report last known touch*/
425 mx1ts_evt_add(mts->ts_idev, 0, 0, 0);
426 printk(KERN_ERR "Pen up interrupt.\n");
427 mx1ts_flush_fifo(mts);
432 if (mts->auto_calibration) {
435 mts->cal_auto_zero = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
436 mts->cal_range_x = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
437 mts->cal_range_y = mx1ts_reg_read(mts, ASP_PADFIFO) & 0xFFFF;
439 printk(KERN_ERR "Kalibrace cal_auto_zero %i.\n",mts->cal_auto_zero);
440 printk(KERN_ERR "Kalibrace cal_range_x %i.\n",mts->cal_range_x);
441 printk(KERN_ERR "Kalibrace cal_range_y %i.\n",mts->cal_range_y);
443 if ((mts->cal_auto_zero >= mts->cal_range_x) ||
444 (mts->cal_auto_zero >= mts->cal_range_y)) {
446 printk(KERN_ERR "Invalid data.\n");
447 mx1ts_flush_fifo(mts); /*if there are some older data*/
448 mx1ts_start_auto_calibration(mts);
449 return IRQ_NONE; /* return IRQ_HANDLED; */
453 mts->cal_range_x -= mts->cal_auto_zero;
454 mts->cal_range_y -= mts->cal_auto_zero;
458 value = mx1ts_reg_read(mts, ASP_ACNTLCR); /*switching S0..S7 by internal logic*/
459 value &= ~0x04000000;
460 mx1ts_reg_write(mts, ASP_ACNTLCR, value);
462 mts->auto_calibration = 0;
464 mx1ts_enable_auto_sample(mts);
466 // There could be more than one sample in the FIFO, but we're
467 // only going to read one per call. The interrupt will be
468 // generated as long as there is data in the FIFO.
470 if ((mx1ts_reg_read(mts, ASP_ISTATR) & ASP_PDR) != ASP_PDR) {
471 return IRQ_NONE; /* TODO je to tak? */
474 auto_zero = mx1ts_reg_read(mts, ASP_PADFIFO);
475 if (auto_zero > (mts->cal_auto_zero + 0x200)) {
476 return IRQ_HANDLED; /* TODO asi se nic nedeje */
479 pen_x = mx1ts_reg_read(mts, ASP_PADFIFO);
480 pen_y = mx1ts_reg_read(mts, ASP_PADFIFO);
481 pen_u = mx1ts_reg_read(mts, ASP_PADFIFO);
483 pen_x = (u32)(((pen_x - auto_zero) << 16) /
485 pen_y = (u32)(((pen_y - auto_zero) << 16) /
489 mx1ts_evt_add(mts->ts_idev, 1, pen_x, pen_y);
495 * Handle the touch interrupt, generated when the pen is pressed/
499 static irqreturn_t mx1ts_touch_irq(int irq, void *dev_id)
501 struct mx1ts *mts = (struct mx1ts *) dev_id;
503 printk(KERN_ERR "Prijat touch down irq \n");
505 /* Clear the interrupt. */
506 mx1ts_reg_set_mask(mts, ASP_ISTATR, ASP_PEN);
508 mx1ts_disable_pen_touch_interrupt(mts);
509 mx1ts_start_auto_calibration(mts);
510 mx1ts_enable_pen_up_interrupt(mts);
515 static inline int mx1ts_enable_irqs(struct mx1ts *mts) //zaregistruje preruseni
518 result = request_irq(ASP_PENDATA_IRQ,
524 printk(KERN_ERR "Couldn't request pen data IRQ.\n");
528 result = request_irq(ASP_TOUCH_IRQ,
534 printk(KERN_ERR "Couldn't request pen touch IRQ.\n");
535 free_irq(ASP_PENDATA_IRQ, mts);
543 static int mx1ts_on(struct mx1ts *mts)
547 if(!request_mem_region(ASP_BASE_ADDR, 0x38 , "mx1ts")) {
548 printk(KERN_ERR "mx1ts: request_mem_region \tFAILED\n");
552 printk(KERN_ERR "mx1ts: request_mem_region \tOK\n");
554 mts->mx1ts_mem = ioremap ( ASP_BASE_ADDR, 0x38);
556 printk(KERN_ERR "mx1ts: memory remaped on %p \n", mts->mx1ts_mem);
560 printk(KERN_ERR "mx1ts: enabling irqs\n");
561 if ((ret = mx1ts_enable_irqs(mts)))
563 printk(KERN_ERR "mx1ts: irqs enabled \tOK\n");
566 mx1ts_reset_asp(mts);
567 printk(KERN_ERR "mx1ts: reset\tOK\n");
572 static void mx1ts_close(struct input_dev *idev)
574 struct mx1ts *mts = dev_get_drvdata(idev->dev.parent);
576 mx1ts_reset_asp(mts);
577 printk(KERN_ERR "mx1ts: reset\tOK\n");
578 mx1ts_disable_pen_touch_interrupt(mts);
579 mx1ts_disable_pen_up_interrupt(mts);
583 static int mx1ts_open(struct input_dev *idev)
585 struct mx1ts *mts = dev_get_drvdata(idev->dev.parent);
588 mx1ts_enable_pen_touch_interrupt(mts);
589 printk(KERN_ERR "mx1ts: zapnuti touch interrupt\n");
593 static int mx1ts_probe(struct platform_device *dev)
596 struct input_dev *idev;
597 int error, x_res, y_res;
599 /* TODO jak poznat ze zarizeni je pritomne ? */
601 mts = kzalloc(sizeof(struct mx1ts), GFP_KERNEL); /* alokuje pamet */
602 idev = input_allocate_device();
605 printk(KERN_ERR "mx1ts: failed allocate memory for struct mx1ts or idev\n");
610 mx1ts_on(mts); /* remaping registers, reseting device */
613 //ucb->adcsync = adcsync;
614 //ucb->ac97 = to_ac97_t(dev);
615 init_waitqueue_head(&mts->ts_wait);
617 /* id = mx1ts_reg_read(ucb, UCB_ID);
618 if (id != UCB_ID_1400) {
623 error = mx1ts_detect_irq(ucb);
625 printk(KERN_ERR "UCB1400: IRQ probe failed\n");
629 error = request_irq(ucb->irq, mx1ts_hard_irq, IRQF_TRIGGER_RISING,
632 printk(KERN_ERR "mx1ts: unable to grab irq%d: %d\n",
636 printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);*/
638 //input_set_drvdata(idev, mts); /*moznost ulozit ukazatel na trukturu do input_driver*/
639 platform_set_drvdata(dev, mts);
641 idev->dev.parent = &dev->dev;
642 idev->name = "MX1 touchscreen interface";
643 idev->id.vendor = (unsigned int) 345; /*mx1ts_reg_read(mx1_ts, AC97_VENDOR_ID1);*/
644 idev->id.product = (unsigned int) 354; /*id;*/
645 idev->open = mx1ts_open;
646 idev->close = mx1ts_close;
647 idev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
648 idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
650 printk(KERN_ERR "mx1ts: setting idev struct \tOK\n");
654 printk(KERN_DEBUG "mx1ts: x/y = %d/%d\n", x_res, y_res);
656 input_set_abs_params(idev, ABS_X, 0, x_res, 0, 0);
657 input_set_abs_params(idev, ABS_Y, 0, y_res, 0, 0);
658 input_set_abs_params(idev, ABS_PRESSURE, 0, 0, 0, 0);
660 error = input_register_device(idev);
662 printk(KERN_ERR "mx1ts: error while register input device\n");
665 printk(KERN_ERR "mx1ts: input device registered \tOK\n");
670 printk(KERN_ERR "mx1ts: error in device probe \n");
671 /*input_free_device(idev);*/
679 static int mx1ts_remove(struct platform_device *dev)
681 struct mx1ts *mts = platform_get_drvdata(dev);
685 free_irq(ASP_PENDATA_IRQ, mts);
686 free_irq(ASP_TOUCH_IRQ, mts);
688 input_free_device(mts->ts_idev);
690 iounmap(mts->mx1ts_mem);
691 release_mem_region(ASP_BASE_ADDR, 0x38);
695 printk(KERN_ERR "Removing driver \tOK\n");
701 static int mx1ts_resume(struct platform_device *dev)
706 /* inicializace ovladace a driveru (insmod, rmmmod ) */
708 static struct platform_driver mx1ts_driver = {
709 .probe = mx1ts_probe,
710 .remove = mx1ts_remove,
711 .resume = mx1ts_resume,
714 .owner = THIS_MODULE,
718 static struct resource mx1ts_resources[] = {
720 .start = ASP_BASE_ADDR + 0,
721 .end = ASP_BASE_ADDR + 0x37,
722 .flags = IORESOURCE_MEM,
725 .start = ASP_PENDATA_IRQ,
726 .end = ASP_PENDATA_IRQ,
727 .flags = IORESOURCE_IRQ,
730 .start = ASP_TOUCH_IRQ,
731 .end = ASP_TOUCH_IRQ,
732 .flags = IORESOURCE_IRQ,
736 static struct platform_device mx1ts_device = {
739 .num_resources = ARRAY_SIZE(mx1ts_resources),
740 .resource = mx1ts_resources,
746 static int __init mx1ts_init(void)
750 error = platform_device_register(&mx1ts_device);
752 printk(KERN_ERR "PiMX1_touchsceen: device registration failed\n");
757 error = platform_driver_register(&mx1ts_driver);
759 printk(KERN_ERR "mx1_touchscreen: failed to register touchscreen driver, error: %d\n", error);
760 platform_device_unregister(&mx1ts_device);
769 static void __exit mx1ts_exit(void)
771 platform_driver_unregister(&mx1ts_driver);
772 platform_device_unregister(&mx1ts_device);
777 //module_param(adcsync, bool, 0444);
778 //MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
780 //module_param(ts_delay, int, 0444);
781 //MODULE_PARM_DESC(ts_delay, "Delay between panel setup and position read. Default = 55us.");
783 //module_param(ts_delay_pressure, int, 0444);
784 //MODULE_PARM_DESC(ts_delay_pressure,
785 // "delay between panel setup and pressure read. Default = 0us.");
787 module_init(mx1ts_init);
788 module_exit(mx1ts_exit);
791 MODULE_DESCRIPTION("MX1 touchscreen driver");
792 MODULE_AUTHOR("Radek Pupák (pupakr1@fel.cvut.cz)");
793 MODULE_LICENSE("GPL");