Hi Jun'ichi, Touch screen after applying ur patch, but everything is working in reverse manner , I think X and Y co-ordinates have swapped, when I touch extreem right icon , It selects extreem left icon!!! (wired!)
I have attched my mxc_ts.c file with mail, kindly give me some suggestion on how to resolve this problem... Best Regards, Rajesh N On Wed, Feb 4, 2009 at 9:35 PM, Jun'ichi Hirayama <[email protected]>wrote: > Hi Rajesh > > Lastyear I was porting Android on IMX31 platform , > (kernel ver 2.6.22 ) > > I adapted mxc_ts.c > > ==================================================================== > ,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); > if (timeout == 0) { > > BR > Jun'ichi > > > > On Wed, Feb 4, 2009 at 2:47 PM, Rocky <[email protected]> wrote: > >> >> Hi, >> >> I been working on Android for past few weeks , I have progressed >> significantly on porting Android on IMX31 platform , now I am facing >> problems with touch screen, it is not working ! >> >> I have checked "cat /dev/input/event1" I get some junk info whenever >> I touch screen which proves something is working around the driver, >> off late I have seen mail listing on android and issues with >> touchscreen, which mentions using of "TSLIB" for android file system. >> >> Can u provide me some inputs on following issues; >> >> (a) How to "statically" compile and integrate "TSLIB" to android >> filesystem, this would be a great help as far I have seen on mailing >> list most of them have failed to compile it statically! >> >> (b) I would like to know if any patch or modification needs to be done >> to "mxc_ts.c" file in "../drivers/input/touchscreen/" >> I am attaching my "mxc_ts.c" file with mail , Kindly have a look >> at it. >> >> I will highly appreciate u r help/ suggestions on touch screen issues >> & awaiting for u r responce. >> >> Best Regards, >> Rajesh >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
/* * Copyright 2007-2008 Freescale Semiconductor, Inc. All Rights Reserved. */ /* * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License * Version 2 or later at the following locations: * * http://www.opensource.org/licenses/gpl-license.html * http://www.gnu.org/copyleft/gpl.html */ /*! * @file mxc_ts.c * * @brief Driver for the Freescale Semiconductor MXC touchscreen. * * The touchscreen driver is designed as a standard input driver which is a * wrapper over low level PMIC driver. Most of the hardware configuration and * touchscreen functionality is implemented in the low level PMIC driver. During * initialization, this driver creates a kernel thread. This thread then calls * PMIC driver to obtain touchscreen values continously. These values are then * passed to the input susbsystem. * * @ingroup touchscreen */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/sched.h> #include <linux/input.h> #include <linux/init.h> #include <linux/delay.h> #include <linux/freezer.h> #include <asm/arch/pmic_external.h> #include <asm/arch/pmic_adc.h> #define MXC_TS_NAME "mxc_ts" #define X_AXIS_MAX 1000 #define X_AXIS_MIN 50 #define Y_AXIS_MAX 1000 #define Y_AXIS_MIN 50 #define PRESSURE_MAX 1 #define PRESSURE_MIN 0 static struct input_dev *mxc_inputdev = NULL; static u32 input_ts_installed; static int ts_thread(void *arg) { t_touch_screen ts_sample; s32 wait = 0; daemonize("mxc_ts"); while (input_ts_installed) { try_to_freeze(); memset(&ts_sample, 0, sizeof(t_touch_screen)); if (0 != pmic_adc_get_touch_sample(&ts_sample, !wait)) continue; #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; } static int __init mxc_ts_init(void) { int retval; mxc_inputdev = input_allocate_device(); if (!mxc_inputdev) { printk(KERN_ERR "mxc_ts_init: not enough memory for input device\n"); return -ENOMEM; } mxc_inputdev->name = MXC_TS_NAME; mxc_inputdev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); mxc_inputdev->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH); mxc_inputdev->absbit[0] =BIT_MASK(ABS_X) | BIT_MASK(ABS_Y) | BIT_MASK(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); retval = input_register_device(mxc_inputdev); if (retval < 0) { input_free_device(mxc_inputdev); return retval; } input_ts_installed = 1; kernel_thread(ts_thread, NULL, CLONE_VM | CLONE_FS); printk("mxc input touchscreen loaded\n"); return 0; } static void __exit mxc_ts_exit(void) { input_ts_installed = 0; input_unregister_device(mxc_inputdev); if (mxc_inputdev) { input_free_device(mxc_inputdev); mxc_inputdev = NULL; } } late_initcall(mxc_ts_init); module_exit(mxc_ts_exit); MODULE_DESCRIPTION("MXC input touchscreen driver"); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_LICENSE("GPL");
