Hi Eric,
Few mins back I enabled touch screen on Imx31 from freescale, plz apply this
patch to u r source code , it will work !, there is a small problem in this
patch as co-ordinates r wrongly mapped ,I mean to say it is in reverse , so
it need to be rectified!!! kindly update u r status after applying this
patch.
====================================================================
,diff -ur linux-2.6.22/drivers/input/touchscreen/mxc_ts.c
linux-2.6.22/drivers/input/touchscreen/mxc_ts.c
--- linux-2.6.22/drivers/input/touchscreen/mxc_ts.c 2008-06-02
20:40:12.000000000 +0900
+++ linux-2.6.22.android/drivers/input/touchscreen/mxc_ts.c 2008-06-17
18:49:28.000000000 +0900
@@ -38,6 +38,15 @@
#define MXC_TS_NAME "mxc_ts"
+#define X_AXIS_MAX 1000
+#define X_AXIS_MIN 80
+#define Y_AXIS_MAX 1000
+#define Y_AXIS_MIN 80
+#define PRESSURE_MAX 1
+#define PRESSURE_MIN 0
static struct input_dev *mxc_inputdev = NULL;
static u32 input_ts_installed;
@@ -50,15 +59,39 @@
try_to_freeze();
memset(&ts_sample, 0, sizeof(t_touch_screen));
pmic_adc_get_touch_sample(&ts_sample, !wait);
-
+#if 1
+ if((ts_sample.x_position >= X_AXIS_MIN) &&
+ (ts_sample.x_position <= X_AXIS_MAX) &&
+ (ts_sample.y_position >= Y_AXIS_MIN) &&
+ (ts_sample.y_position <= Y_AXIS_MAX)) {
+
+ input_report_abs(mxc_inputdev, ABS_X,
ts_sample.x_position);
+ input_report_abs(mxc_inputdev, ABS_Y,
ts_sample.y_position);
+ input_report_abs(mxc_inputdev, ABS_PRESSURE,
+ ts_sample.contact_resistance);
+
+ input_report_key(mxc_inputdev,BTN_TOUCH,1);
+ }
+ else {
+ input_report_key(mxc_inputdev,BTN_TOUCH,0);
+ }
+ input_sync(mxc_inputdev);
+
+ wait = ts_sample.contact_resistance;
+ msleep(20);
+#else
input_report_abs(mxc_inputdev, ABS_X, ts_sample.x_position);
input_report_abs(mxc_inputdev, ABS_Y, ts_sample.y_position);
input_report_abs(mxc_inputdev, ABS_PRESSURE,
ts_sample.contact_resistance);
+
input_sync(mxc_inputdev);
wait = ts_sample.contact_resistance;
msleep(20);
+#endif
}
return 0;
@@ -77,6 +110,12 @@
mxc_inputdev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
mxc_inputdev->keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH);
mxc_inputdev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
+ input_set_abs_params(mxc_inputdev,ABS_X,X_AXIS_MIN,X_AXIS_MAX,0,0);
+ input_set_abs_params(mxc_inputdev,ABS_Y,Y_AXIS_MIN,Y_AXIS_MAX,0,0);
+
input_set_abs_params(mxc_inputdev,ABS_PRESSURE,PRESSURE_MIN,PRESSURE_MAX,0,0);
input_register_device(mxc_inputdev);
input_ts_installed = 1;
=======================================================================
BTW I found ipu had some problem.following image is fix image.
diff -ur linux-2.6.22/drivers/mxc/ipu/ipu_common.c
linux-2.6.22/drivers/mxc/ipu/ipu_common.c
--- linux-2.6.22/drivers/mxc/ipu/ipu_common.c 2008-06-02
20:40:13.000000000 +0900
+++ linux-2.6.22.android/drivers/mxc/ipu/ipu_common.c 2008-06-17
18:49:40.000000000 +0900
@@ -588,23 +587,28 @@
if (dma_chan == IDMA_CHAN_INVALID)
return -EINVAL;
-
spin_lock_irqsave(&ipu_lock, lock_flags);
if (bufNum == 0) {
reg = __raw_readl(IPU_CHA_BUF0_RDY);
+#if 0
if (reg & (1UL << dma_chan)) {
spin_unlock_irqrestore(&ipu_lock, lock_flags);
return -EACCES;
}
+#endif
__raw_writel(DMAParamAddr(dma_chan) + 0x0008UL, IPU_IMA_ADDR);
__raw_writel(phyaddr, IPU_IMA_DATA);
} else {
reg = __raw_readl(IPU_CHA_BUF1_RDY);
+#if 0
if (reg & (1UL << dma_chan)) {
spin_unlock_irqrestore(&ipu_lock, lock_flags);
return -EACCES;
}
+#endif
__raw_writel(DMAParamAddr(dma_chan) + 0x0009UL, IPU_IMA_ADDR);
__raw_writel(phyaddr, IPU_IMA_DATA);
}
@@ -1139,7 +1143,15 @@
if (wait_for_stop && channel != MEM_SDC_FG && channel != MEM_SDC_BG) {
timeout = 40;
while ((__raw_readl(IDMAC_CHA_BUSY) & chan_mask) ||
+#if 0
(_ipu_channel_status(channel) == TASK_STAT_ACTIVE)) {
+#else
+ (_ipu_channel_status(channel) == TASK_STAT_ACTIVE) ||
+ __raw_readl(IPU_CHA_BUF0_RDY) & (1UL << out_dma) ||
+ __raw_readl(IPU_CHA_BUF0_RDY) & (1UL << out_dma))
+ {
+#endif
timeout--;
msleep(10);
Best Regards,
Rajesh N
if (timeout == 0) {
On Thu, Feb 5, 2009 at 3:30 PM, Eric Michael <[email protected]> wrote:
>
> Hi all,
>
> I previously ported android on IMX31 with Android SDK release
> mcr20 and everything was working fine including keypad and
> touchscreen. Later when I updated with Android patch from SDK 1.0
> release with IMX kernel from freescale linx-2.6.24 with android patch.
> Keypad and touchscreen is not working. I also tried with enabling and
> disabling power management options in the menuconfig and result are
> same. I m getting the Android Desktop like screen with Screen lock
> message and Only if keypad works I can test further for the Video and
> Audio applications in the Android.Any help regarding this will be
> highly appreciated and of great help for me and others in this group.
>
> Thanks and Regards
> Eric
> >
>
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