* pin should provide pulses even when the LCD is blanked, otherwise
* a pen touch needed to unblank the LCD will never be read.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/smp.h>
-#include <linux/smp_lock.h>
#include <linux/sched.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/string.h>
#include <linux/input.h>
#include <linux/device.h>
-#include <linux/suspend.h>
+#include <linux/freezer.h>
#include <linux/slab.h>
#include <linux/kthread.h>
-#include <asm/dma.h>
-#include <asm/semaphore.h>
+#include <mach/dma.h>
+#include <mach/collie.h>
+#include <asm/mach-types.h>
#include "ucb1x00.h"
static inline void ucb1x00_ts_evt_add(struct ucb1x00_ts *ts, u16 pressure, u16 x, u16 y)
{
- input_report_abs(ts->idev, ABS_X, x);
- input_report_abs(ts->idev, ABS_Y, y);
- input_report_abs(ts->idev, ABS_PRESSURE, pressure);
- input_sync(ts->idev);
+ struct input_dev *idev = ts->idev;
+
+ input_report_abs(idev, ABS_X, x);
+ input_report_abs(idev, ABS_Y, y);
+ input_report_abs(idev, ABS_PRESSURE, pressure);
+ input_sync(idev);
}
static inline void ucb1x00_ts_event_release(struct ucb1x00_ts *ts)
{
- input_report_abs(ts->idev, ABS_PRESSURE, 0);
- input_sync(ts->idev);
+ struct input_dev *idev = ts->idev;
+
+ input_report_abs(idev, ABS_PRESSURE, 0);
+ input_sync(idev);
}
/*
*/
static inline unsigned int ucb1x00_ts_read_pressure(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie()) {
+ ucb1x00_io_write(ts->ucb, COLLIE_TC35143_GPIO_TBL_CHK, 0);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSPX_POW | UCB_TS_CR_TSMX_POW |
+ UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
- return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+ udelay(55);
+
+ return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_AD2, ts->adcsync);
+ } else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+
+ return ucb1x00_adc_read(ts->ucb, UCB_ADC_INP_TSPY, ts->adcsync);
+ }
}
/*
*/
static inline unsigned int ucb1x00_ts_read_xpos(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie())
+ ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+ else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ }
ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
*/
static inline unsigned int ucb1x00_ts_read_ypos(struct ucb1x00_ts *ts)
{
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
- ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
- UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
- UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ if (machine_is_collie())
+ ucb1x00_io_write(ts->ucb, 0, COLLIE_TC35143_GPIO_TBL_CHK);
+ else {
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
+ UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
+ UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+ }
+
ucb1x00_reg_write(ts->ucb, UCB_TS_CR,
UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
UCB_TS_CR_MODE_POS | UCB_TS_CR_BIAS_ENA);
return ucb1x00_adc_read(ts->ucb, 0, ts->adcsync);
}
+static inline int ucb1x00_ts_pen_down(struct ucb1x00_ts *ts)
+{
+ unsigned int val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
+
+ if (machine_is_collie())
+ return (!(val & (UCB_TS_CR_TSPX_LOW)));
+ else
+ return (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW));
+}
+
/*
* This is a RT kernel thread that handles the ADC accesses
* (mainly so we can use semaphores in the UCB1200 core code
static int ucb1x00_thread(void *_ts)
{
struct ucb1x00_ts *ts = _ts;
- struct task_struct *tsk = current;
- DECLARE_WAITQUEUE(wait, tsk);
- int valid;
-
- /*
- * We could run as a real-time thread. However, thus far
- * this doesn't seem to be necessary.
- */
-// tsk->policy = SCHED_FIFO;
-// tsk->rt_priority = 1;
-
- valid = 0;
+ DECLARE_WAITQUEUE(wait, current);
+ int valid = 0;
+ set_freezable();
add_wait_queue(&ts->irq_wait, &wait);
while (!kthread_should_stop()) {
- unsigned int x, y, p, val;
+ unsigned int x, y, p;
signed long timeout;
ts->restart = 0;
msleep(10);
ucb1x00_enable(ts->ucb);
- val = ucb1x00_reg_read(ts->ucb, UCB_TS_CR);
- if (val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW)) {
- set_task_state(tsk, TASK_INTERRUPTIBLE);
- ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING);
+ if (ucb1x00_ts_pen_down(ts)) {
+ set_current_state(TASK_INTERRUPTIBLE);
+
+ ucb1x00_enable_irq(ts->ucb, UCB_IRQ_TSPX, machine_is_collie() ? UCB_RISING : UCB_FALLING);
ucb1x00_disable(ts->ucb);
/*
valid = 1;
}
- set_task_state(tsk, TASK_INTERRUPTIBLE);
+ set_current_state(TASK_INTERRUPTIBLE);
timeout = HZ / 100;
}
static void ucb1x00_ts_irq(int idx, void *id)
{
struct ucb1x00_ts *ts = id;
+
ucb1x00_disable_irq(ts->ucb, UCB_IRQ_TSPX, UCB_FALLING);
wake_up(&ts->irq_wait);
}
static int ucb1x00_ts_open(struct input_dev *idev)
{
- struct ucb1x00_ts *ts = (struct ucb1x00_ts *)idev;
+ struct ucb1x00_ts *ts = input_get_drvdata(idev);
int ret = 0;
BUG_ON(ts->rtask);
*/
static void ucb1x00_ts_close(struct input_dev *idev)
{
- struct ucb1x00_ts *ts = (struct ucb1x00_ts *)idev;
+ struct ucb1x00_ts *ts = input_get_drvdata(idev);
if (ts->rtask)
kthread_stop(ts->rtask);
static int ucb1x00_ts_add(struct ucb1x00_dev *dev)
{
struct ucb1x00_ts *ts;
+ struct input_dev *idev;
+ int err;
ts = kzalloc(sizeof(struct ucb1x00_ts), GFP_KERNEL);
- if (!ts)
- return -ENOMEM;
-
- ts->idev = input_allocate_device();
- if (!ts->idev) {
- kfree(ts);
- return -ENOMEM;
+ idev = input_allocate_device();
+ if (!ts || !idev) {
+ err = -ENOMEM;
+ goto fail;
}
ts->ucb = dev->ucb;
+ ts->idev = idev;
ts->adcsync = adcsync ? UCB_SYNC : UCB_NOSYNC;
- ts->idev->name = "Touchscreen panel";
- ts->idev->id.product = ts->ucb->id;
- ts->idev->open = ucb1x00_ts_open;
- ts->idev->close = ucb1x00_ts_close;
+ idev->name = "Touchscreen panel";
+ idev->id.product = ts->ucb->id;
+ idev->open = ucb1x00_ts_open;
+ idev->close = ucb1x00_ts_close;
+
+ __set_bit(EV_ABS, idev->evbit);
+ __set_bit(ABS_X, idev->absbit);
+ __set_bit(ABS_Y, idev->absbit);
+ __set_bit(ABS_PRESSURE, idev->absbit);
- __set_bit(EV_ABS, ts->idev->evbit);
- __set_bit(ABS_X, ts->idev->absbit);
- __set_bit(ABS_Y, ts->idev->absbit);
- __set_bit(ABS_PRESSURE, ts->idev->absbit);
+ input_set_drvdata(idev, ts);
- input_register_device(ts->idev);
+ err = input_register_device(idev);
+ if (err)
+ goto fail;
dev->priv = ts;
return 0;
+
+ fail:
+ input_free_device(idev);
+ kfree(ts);
+ return err;
}
static void ucb1x00_ts_remove(struct ucb1x00_dev *dev)
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff