RE: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik,
Really thanks a lot for all your advice.
> > @@ -751,7 +739,7 @@ static int synaptics_rmi4_i2c_query_device(struct
> synaptics_rmi4_data *pdata)
> > pdata->fn01_data_base_addr =
> > rmi_fd.data_base_addr;
> > break;
> > - case SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM:
> > + case SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM:
> > if (rmi_fd.intr_src_count) {
> > rfi = kmalloc(sizeof(*rfi),
> > GFP_KERNEL);
> > @@ -761,7 +749,8 @@ static int synaptics_rmi4_i2c_query_device(struct
> synaptics_rmi4_data *pdata)
> > __func__);
> > return -ENOMEM;
> > }
> > - retval = synpatics_rmi4_touchpad_detect
> > + retval =
> > + synpatics_rmi4_touchscreen_detect
> > (pdata, rfi,
> > _fd,
> > intr_count);
>
> Odd line break is a clear sign that something could be broken out into its own
> function.
>
> > @@ -854,8 +843,9 @@ static int synaptics_rmi4_i2c_query_device(struct
> synaptics_rmi4_data *pdata)
> > list_for_each_entry(rfi, >support_fn_list, link) {
> > if (rfi->num_of_data_sources) {
> > if (rfi->fn_number ==
> > - SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM) {
> > - retval = synaptics_rmi4_touchpad_config
> > + SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM) {
> > + retval =
> > + synaptics_rmi4_touchscreen_config
> > (pdata, rfi);
> > if (retval < 0)
> > return retval;
>
> Same here.
>
As you mentioned, there are odd lines in patch v3.
These odd lines are because that lines are over 80 characters after "touchpad"
is
replaced by "touchscreen".
In patch v4, I did the splitting of the functions to fix line over 80
characters issue
(and other irrelevant work).
Somehow I realized that code itself can be optimized, and there is no need
to break out function to fix line over 80 characters issues. Therefore I
rollback
patch to v3, and reorganized code flow to fix line over 80 characters issues in
patch v5. Patch v5 only includes odd lines issue fixed, although it looks a
little
too large.
And these changes have been verified with Pandaboard.
Greatly appreciate your suggestions, and please let me know if you have any
concerns about v5 (https://lkml.org/lkml/2012/11/8/31).
Yours very truly,
Alexandra
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik,
Really thanks a lot for all your advice.
@@ -751,7 +739,7 @@ static int synaptics_rmi4_i2c_query_device(struct
synaptics_rmi4_data *pdata)
pdata-fn01_data_base_addr =
rmi_fd.data_base_addr;
break;
- case SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM:
+ case SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM:
if (rmi_fd.intr_src_count) {
rfi = kmalloc(sizeof(*rfi),
GFP_KERNEL);
@@ -761,7 +749,8 @@ static int synaptics_rmi4_i2c_query_device(struct
synaptics_rmi4_data *pdata)
__func__);
return -ENOMEM;
}
- retval = synpatics_rmi4_touchpad_detect
+ retval =
+ synpatics_rmi4_touchscreen_detect
(pdata, rfi,
rmi_fd,
intr_count);
Odd line break is a clear sign that something could be broken out into its own
function.
@@ -854,8 +843,9 @@ static int synaptics_rmi4_i2c_query_device(struct
synaptics_rmi4_data *pdata)
list_for_each_entry(rfi, rmi-support_fn_list, link) {
if (rfi-num_of_data_sources) {
if (rfi-fn_number ==
- SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM) {
- retval = synaptics_rmi4_touchpad_config
+ SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM) {
+ retval =
+ synaptics_rmi4_touchscreen_config
(pdata, rfi);
if (retval 0)
return retval;
Same here.
As you mentioned, there are odd lines in patch v3.
These odd lines are because that lines are over 80 characters after touchpad
is
replaced by touchscreen.
In patch v4, I did the splitting of the functions to fix line over 80
characters issue
(and other irrelevant work).
Somehow I realized that code itself can be optimized, and there is no need
to break out function to fix line over 80 characters issues. Therefore I
rollback
patch to v3, and reorganized code flow to fix line over 80 characters issues in
patch v5. Patch v5 only includes odd lines issue fixed, although it looks a
little
too large.
And these changes have been verified with Pandaboard.
Greatly appreciate your suggestions, and please let me know if you have any
concerns about v5 (https://lkml.org/lkml/2012/11/8/31).
Yours very truly,
Alexandra
--
To unsubscribe from this list: send the line unsubscribe linux-kernel in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
RE: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik,
> > This patch converts to MT-B because Synaptics touch devices are
> > capable of tracking identifiable fingers
> >
> > This patch was tested on pandaboard, except input_mt_sync_frame(),
> > which is a quite new function.
>
> I am not sure how to interpret this. Is the patch untested, or tested
> on something different from a pandaboard?
My validation platform is pandaboard. However kernel running on pandaboard
Have not been updated to 3.7, therefore kernel does not contain function
input_mt_sync_frame(). When I tested my patch on pandaboard, I modified
the patch to call function input_mt_report_pointer_emulation(), instead of
calling function input_mt_sync_frame(). I think calling
input_mt_report_pointer_emulation() or input_mt_sync_frame()
should have the same results.
Please let me know if my understanding is incorrect.
> > I changed to use sylpheed as my mail client. Please let me know
> > if there is any problem.
> > Greatly appreciate your time.
>
> As mentioned, the commit message of the patch should not contain mail
> conversation.
Oh, I see! I should move conversation message to the outside of the patch
content. Thanks for your reminder.
> > drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122
> -
> > 1 files changed, 57 insertions(+), 65 deletions(-)
> >
> > diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> > index 277491a..7876f6b 100644
> > --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> > +++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> > @@ -1,7 +1,7 @@
> > /**
> > *
> > - * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
> > - * Copyright (c) 2007-2010, Synaptics Incorporated
> > + * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
> > + * Copyright (c) 2007-2012, Synaptics Incorporated
> > *
> > * Author: Js HA for ST-Ericsson
> > * Author: Naveen Kumar G for
> ST-Ericsson
> > @@ -31,6 +31,7 @@
> > #include
> > #include
> > #include
> > +#include
> > #include "synaptics_i2c_rmi4.h"
> >
> > /* TODO: for multiple device support will need a per-device mutex */
> > @@ -63,12 +64,11 @@
> > #define MASK_4BIT 0x0F
> > #define MASK_3BIT 0x07
> > #define MASK_2BIT 0x03
> > -#define TOUCHPAD_CTRL_INTR 0x8
> > +#define TOUCHSCREEN_CTRL_INTR 0x8
> > #define PDT_START_SCAN_LOCATION (0x00E9)
> > #define PDT_END_SCAN_LOCATION (0x000A)
> > #define PDT_ENTRY_SIZE (0x0006)
> > -#define RMI4_NUMBER_OF_MAX_FINGERS (8)
> > -#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
> > +#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM(0x11)
> > #define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
> >
> > /**
> > @@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
> > * @regulator: pointer to the regulator structure
> > * @wait: wait queue structure variable
> > * @touch_stopped: flag to stop the thread function
> > + * @fingers_supported: maximum supported fingers
> > *
> > * This structure gives the device data information.
> > */
> > @@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
> > struct regulator*regulator;
> > wait_queue_head_t wait;
> > booltouch_stopped;
> > + unsigned char fingers_supported;
> > };
> >
> > /**
> > @@ -291,34 +293,33 @@ exit:
> > }
> >
> > /**
> > - * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
> > + * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
> device
> > * @pdata: pointer to synaptics_rmi4_data structure
> > * @rfi: pointer to synaptics_rmi4_fn structure
> > *
> > - * This function calls to reports for the rmi4 touchpad device
> > + * This function calls to reports for the rmi4 touchscreen device
> > */
> > -static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data
> > *pdata,
> > +static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data
> *pdata,
> > struct synaptics_rmi4_fn *rfi)
> > {
> > /* number of touch points - fingers down in this case */
> > int touch_count = 0;
> > int finger;
> > - int fingers_supported;
> > int finger_registers;
> > int reg;
> > int finger_shift;
> > int finger_status;
> > int retval;
> > + int x, y;
> > + int wx, wy;
> > unsigned short data_base_addr;
> > unsigned short data_offset;
> > unsigned char data_reg_blk_size;
> > unsigned char values[2];
> > unsigned char data[DATA_LEN];
> > - int x[RMI4_NUMBER_OF_MAX_FINGERS];
> > - int y[RMI4_NUMBER_OF_MAX_FINGERS];
> > - int wx[RMI4_NUMBER_OF_MAX_FINGERS];
> > - int wy[RMI4_NUMBER_OF_MAX_FINGERS];
> > + unsigned char fingers_supported = pdata->fingers_supported;
> > struct i2c_client *client = pdata->i2c_client;
> > +
Re: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Alexandra,
Thanks for making changes.
> This patch converts to MT-B because Synaptics touch devices are
> capable of tracking identifiable fingers
>
> This patch was tested on pandaboard, except input_mt_sync_frame(),
> which is a quite new function.
I am not sure how to interpret this. Is the patch untested, or tested
on something different from a pandaboard?
> I changed to use sylpheed as my mail client. Please let me know
> if there is any problem.
> Greatly appreciate your time.
As mentioned, the commit message of the patch should not contain mail
conversation.
> drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122
> -
> 1 files changed, 57 insertions(+), 65 deletions(-)
>
> diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> index 277491a..7876f6b 100644
> --- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> +++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
> @@ -1,7 +1,7 @@
> /**
> *
> - * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
> - * Copyright (c) 2007-2010, Synaptics Incorporated
> + * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
> + * Copyright (c) 2007-2012, Synaptics Incorporated
> *
> * Author: Js HA for ST-Ericsson
> * Author: Naveen Kumar G for ST-Ericsson
> @@ -31,6 +31,7 @@
> #include
> #include
> #include
> +#include
> #include "synaptics_i2c_rmi4.h"
>
> /* TODO: for multiple device support will need a per-device mutex */
> @@ -63,12 +64,11 @@
> #define MASK_4BIT0x0F
> #define MASK_3BIT0x07
> #define MASK_2BIT0x03
> -#define TOUCHPAD_CTRL_INTR 0x8
> +#define TOUCHSCREEN_CTRL_INTR0x8
> #define PDT_START_SCAN_LOCATION (0x00E9)
> #define PDT_END_SCAN_LOCATION(0x000A)
> #define PDT_ENTRY_SIZE (0x0006)
> -#define RMI4_NUMBER_OF_MAX_FINGERS (8)
> -#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
> +#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM (0x11)
> #define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
>
> /**
> @@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
> * @regulator: pointer to the regulator structure
> * @wait: wait queue structure variable
> * @touch_stopped: flag to stop the thread function
> + * @fingers_supported: maximum supported fingers
> *
> * This structure gives the device data information.
> */
> @@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
> struct regulator*regulator;
> wait_queue_head_t wait;
> booltouch_stopped;
> + unsigned char fingers_supported;
> };
>
> /**
> @@ -291,34 +293,33 @@ exit:
> }
>
> /**
> - * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
> + * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
> device
> * @pdata: pointer to synaptics_rmi4_data structure
> * @rfi: pointer to synaptics_rmi4_fn structure
> *
> - * This function calls to reports for the rmi4 touchpad device
> + * This function calls to reports for the rmi4 touchscreen device
> */
> -static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata,
> +static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data
> *pdata,
> struct synaptics_rmi4_fn *rfi)
> {
> /* number of touch points - fingers down in this case */
> int touch_count = 0;
> int finger;
> - int fingers_supported;
> int finger_registers;
> int reg;
> int finger_shift;
> int finger_status;
> int retval;
> + int x, y;
> + int wx, wy;
> unsigned short data_base_addr;
> unsigned short data_offset;
> unsigned char data_reg_blk_size;
> unsigned char values[2];
> unsigned char data[DATA_LEN];
> - int x[RMI4_NUMBER_OF_MAX_FINGERS];
> - int y[RMI4_NUMBER_OF_MAX_FINGERS];
> - int wx[RMI4_NUMBER_OF_MAX_FINGERS];
> - int wy[RMI4_NUMBER_OF_MAX_FINGERS];
> + unsigned char fingers_supported = pdata->fingers_supported;
> struct i2c_client *client = pdata->i2c_client;
> + struct input_dev *input_dev = pdata->input_dev;
The patch is definitely an improvement over the existing code, but I
would very much recommend a follow-up patch which splits this
function.
>
> /* get 2D sensor finger data */
> /*
> @@ -333,7 +334,6 @@ static int synpatics_rmi4_touchpad_report(struct
> synaptics_rmi4_data *pdata,
>* 10 = finger present but data may not be accurate,
>* 11 = reserved for product use.
>*/
> - fingers_supported = rfi->num_of_data_points;
> finger_registers= (fingers_supported + 3)/4;
> data_base_addr = rfi->fn_desc.data_base_addr;
> retval = synaptics_rmi4_i2c_block_read(pdata,
Re: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Alexandra,
Thanks for making changes.
This patch converts to MT-B because Synaptics touch devices are
capable of tracking identifiable fingers
This patch was tested on pandaboard, except input_mt_sync_frame(),
which is a quite new function.
I am not sure how to interpret this. Is the patch untested, or tested
on something different from a pandaboard?
I changed to use sylpheed as my mail client. Please let me know
if there is any problem.
Greatly appreciate your time.
As mentioned, the commit message of the patch should not contain mail
conversation.
drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122
-
1 files changed, 57 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index 277491a..7876f6b 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -1,7 +1,7 @@
/**
*
- * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
- * Copyright (c) 2007-2010, Synaptics Incorporated
+ * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
+ * Copyright (c) 2007-2012, Synaptics Incorporated
*
* Author: Js HA js...@stericsson.com for ST-Ericsson
* Author: Naveen Kumar G naveen.gaddip...@stericsson.com for ST-Ericsson
@@ -31,6 +31,7 @@
#include linux/interrupt.h
#include linux/regulator/consumer.h
#include linux/module.h
+#include linux/input/mt.h
#include synaptics_i2c_rmi4.h
/* TODO: for multiple device support will need a per-device mutex */
@@ -63,12 +64,11 @@
#define MASK_4BIT0x0F
#define MASK_3BIT0x07
#define MASK_2BIT0x03
-#define TOUCHPAD_CTRL_INTR 0x8
+#define TOUCHSCREEN_CTRL_INTR0x8
#define PDT_START_SCAN_LOCATION (0x00E9)
#define PDT_END_SCAN_LOCATION(0x000A)
#define PDT_ENTRY_SIZE (0x0006)
-#define RMI4_NUMBER_OF_MAX_FINGERS (8)
-#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
+#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM (0x11)
#define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
/**
@@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
* @regulator: pointer to the regulator structure
* @wait: wait queue structure variable
* @touch_stopped: flag to stop the thread function
+ * @fingers_supported: maximum supported fingers
*
* This structure gives the device data information.
*/
@@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
struct regulator*regulator;
wait_queue_head_t wait;
booltouch_stopped;
+ unsigned char fingers_supported;
};
/**
@@ -291,34 +293,33 @@ exit:
}
/**
- * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
+ * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
device
* @pdata: pointer to synaptics_rmi4_data structure
* @rfi: pointer to synaptics_rmi4_fn structure
*
- * This function calls to reports for the rmi4 touchpad device
+ * This function calls to reports for the rmi4 touchscreen device
*/
-static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata,
+static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data
*pdata,
struct synaptics_rmi4_fn *rfi)
{
/* number of touch points - fingers down in this case */
int touch_count = 0;
int finger;
- int fingers_supported;
int finger_registers;
int reg;
int finger_shift;
int finger_status;
int retval;
+ int x, y;
+ int wx, wy;
unsigned short data_base_addr;
unsigned short data_offset;
unsigned char data_reg_blk_size;
unsigned char values[2];
unsigned char data[DATA_LEN];
- int x[RMI4_NUMBER_OF_MAX_FINGERS];
- int y[RMI4_NUMBER_OF_MAX_FINGERS];
- int wx[RMI4_NUMBER_OF_MAX_FINGERS];
- int wy[RMI4_NUMBER_OF_MAX_FINGERS];
+ unsigned char fingers_supported = pdata-fingers_supported;
struct i2c_client *client = pdata-i2c_client;
+ struct input_dev *input_dev = pdata-input_dev;
The patch is definitely an improvement over the existing code, but I
would very much recommend a follow-up patch which splits this
function.
/* get 2D sensor finger data */
/*
@@ -333,7 +334,6 @@ static int synpatics_rmi4_touchpad_report(struct
synaptics_rmi4_data *pdata,
* 10 = finger present but data may not be accurate,
* 11 = reserved for product use.
*/
- fingers_supported = rfi-num_of_data_points;
finger_registers= (fingers_supported + 3)/4;
data_base_addr = rfi-fn_desc.data_base_addr;
retval = synaptics_rmi4_i2c_block_read(pdata,
RE: [PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik,
This patch converts to MT-B because Synaptics touch devices are
capable of tracking identifiable fingers
This patch was tested on pandaboard, except input_mt_sync_frame(),
which is a quite new function.
I am not sure how to interpret this. Is the patch untested, or tested
on something different from a pandaboard?
My validation platform is pandaboard. However kernel running on pandaboard
Have not been updated to 3.7, therefore kernel does not contain function
input_mt_sync_frame(). When I tested my patch on pandaboard, I modified
the patch to call function input_mt_report_pointer_emulation(), instead of
calling function input_mt_sync_frame(). I think calling
input_mt_report_pointer_emulation() or input_mt_sync_frame()
should have the same results.
Please let me know if my understanding is incorrect.
I changed to use sylpheed as my mail client. Please let me know
if there is any problem.
Greatly appreciate your time.
As mentioned, the commit message of the patch should not contain mail
conversation.
Oh, I see! I should move conversation message to the outside of the patch
content. Thanks for your reminder.
drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122
-
1 files changed, 57 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index 277491a..7876f6b 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -1,7 +1,7 @@
/**
*
- * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
- * Copyright (c) 2007-2010, Synaptics Incorporated
+ * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
+ * Copyright (c) 2007-2012, Synaptics Incorporated
*
* Author: Js HA js...@stericsson.com for ST-Ericsson
* Author: Naveen Kumar G naveen.gaddip...@stericsson.com for
ST-Ericsson
@@ -31,6 +31,7 @@
#include linux/interrupt.h
#include linux/regulator/consumer.h
#include linux/module.h
+#include linux/input/mt.h
#include synaptics_i2c_rmi4.h
/* TODO: for multiple device support will need a per-device mutex */
@@ -63,12 +64,11 @@
#define MASK_4BIT 0x0F
#define MASK_3BIT 0x07
#define MASK_2BIT 0x03
-#define TOUCHPAD_CTRL_INTR 0x8
+#define TOUCHSCREEN_CTRL_INTR 0x8
#define PDT_START_SCAN_LOCATION (0x00E9)
#define PDT_END_SCAN_LOCATION (0x000A)
#define PDT_ENTRY_SIZE (0x0006)
-#define RMI4_NUMBER_OF_MAX_FINGERS (8)
-#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
+#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM(0x11)
#define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
/**
@@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
* @regulator: pointer to the regulator structure
* @wait: wait queue structure variable
* @touch_stopped: flag to stop the thread function
+ * @fingers_supported: maximum supported fingers
*
* This structure gives the device data information.
*/
@@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
struct regulator*regulator;
wait_queue_head_t wait;
booltouch_stopped;
+ unsigned char fingers_supported;
};
/**
@@ -291,34 +293,33 @@ exit:
}
/**
- * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
+ * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
device
* @pdata: pointer to synaptics_rmi4_data structure
* @rfi: pointer to synaptics_rmi4_fn structure
*
- * This function calls to reports for the rmi4 touchpad device
+ * This function calls to reports for the rmi4 touchscreen device
*/
-static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data
*pdata,
+static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data
*pdata,
struct synaptics_rmi4_fn *rfi)
{
/* number of touch points - fingers down in this case */
int touch_count = 0;
int finger;
- int fingers_supported;
int finger_registers;
int reg;
int finger_shift;
int finger_status;
int retval;
+ int x, y;
+ int wx, wy;
unsigned short data_base_addr;
unsigned short data_offset;
unsigned char data_reg_blk_size;
unsigned char values[2];
unsigned char data[DATA_LEN];
- int x[RMI4_NUMBER_OF_MAX_FINGERS];
- int y[RMI4_NUMBER_OF_MAX_FINGERS];
- int wx[RMI4_NUMBER_OF_MAX_FINGERS];
- int wy[RMI4_NUMBER_OF_MAX_FINGERS];
+ unsigned char fingers_supported = pdata-fingers_supported;
struct i2c_client *client = pdata-i2c_client;
+ struct input_dev *input_dev = pdata-input_dev;
The patch is definitely an improvement over
[PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik and all,
This patch converts to MT-B because Synaptics touch devices are
capable of tracking identifiable fingers
This patch was tested on pandaboard, except input_mt_sync_frame(),
which is a quite new function.
I changed to use sylpheed as my mail client. Please let me know
if there is any problem.
Greatly appreciate your time.
Alexandra Chin
Signed-off-by: Alexandra Chin
---
Changes from v3:
- Incorporated Henrik's review comments
*remove 'else' after an error path return
*add input_mt_sync_frame() for pointer emulation effects
*correct names of touchscreen
- Replace printk with dev_err
Changes from v2:
- Incorporated Henrik's review comments
*directly report finger state with Type-B
- Against 3.7-rcX
*call input_mt_init_slots with INPUT_MT_DIRECT flag
drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122 -
1 files changed, 57 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index 277491a..7876f6b 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -1,7 +1,7 @@
/**
*
- * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
- * Copyright (c) 2007-2010, Synaptics Incorporated
+ * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
+ * Copyright (c) 2007-2012, Synaptics Incorporated
*
* Author: Js HA for ST-Ericsson
* Author: Naveen Kumar G for ST-Ericsson
@@ -31,6 +31,7 @@
#include
#include
#include
+#include
#include "synaptics_i2c_rmi4.h"
/* TODO: for multiple device support will need a per-device mutex */
@@ -63,12 +64,11 @@
#define MASK_4BIT 0x0F
#define MASK_3BIT 0x07
#define MASK_2BIT 0x03
-#define TOUCHPAD_CTRL_INTR 0x8
+#define TOUCHSCREEN_CTRL_INTR 0x8
#define PDT_START_SCAN_LOCATION (0x00E9)
#define PDT_END_SCAN_LOCATION (0x000A)
#define PDT_ENTRY_SIZE (0x0006)
-#define RMI4_NUMBER_OF_MAX_FINGERS (8)
-#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
+#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM(0x11)
#define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
/**
@@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
* @regulator: pointer to the regulator structure
* @wait: wait queue structure variable
* @touch_stopped: flag to stop the thread function
+ * @fingers_supported: maximum supported fingers
*
* This structure gives the device data information.
*/
@@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
struct regulator*regulator;
wait_queue_head_t wait;
booltouch_stopped;
+ unsigned char fingers_supported;
};
/**
@@ -291,34 +293,33 @@ exit:
}
/**
- * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
+ * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
device
* @pdata: pointer to synaptics_rmi4_data structure
* @rfi: pointer to synaptics_rmi4_fn structure
*
- * This function calls to reports for the rmi4 touchpad device
+ * This function calls to reports for the rmi4 touchscreen device
*/
-static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata,
+static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data *pdata,
struct synaptics_rmi4_fn *rfi)
{
/* number of touch points - fingers down in this case */
int touch_count = 0;
int finger;
- int fingers_supported;
int finger_registers;
int reg;
int finger_shift;
int finger_status;
int retval;
+ int x, y;
+ int wx, wy;
unsigned short data_base_addr;
unsigned short data_offset;
unsigned char data_reg_blk_size;
unsigned char values[2];
unsigned char data[DATA_LEN];
- int x[RMI4_NUMBER_OF_MAX_FINGERS];
- int y[RMI4_NUMBER_OF_MAX_FINGERS];
- int wx[RMI4_NUMBER_OF_MAX_FINGERS];
- int wy[RMI4_NUMBER_OF_MAX_FINGERS];
+ unsigned char fingers_supported = pdata->fingers_supported;
struct i2c_client *client = pdata->i2c_client;
+ struct input_dev *input_dev = pdata->input_dev;
/* get 2D sensor finger data */
/*
@@ -333,7 +334,6 @@ static int synpatics_rmi4_touchpad_report(struct
synaptics_rmi4_data *pdata,
* 10 = finger present but data may not be accurate,
* 11 = reserved for product use.
*/
- fingers_supported = rfi->num_of_data_points;
finger_registers= (fingers_supported + 3)/4;
data_base_addr = rfi->fn_desc.data_base_addr;
retval = synaptics_rmi4_i2c_block_read(pdata, data_base_addr, values,
@@
[PATCH v3] staging: ste_rmi4: Convert to Type-B support
Hi Henrik and all,
This patch converts to MT-B because Synaptics touch devices are
capable of tracking identifiable fingers
This patch was tested on pandaboard, except input_mt_sync_frame(),
which is a quite new function.
I changed to use sylpheed as my mail client. Please let me know
if there is any problem.
Greatly appreciate your time.
Alexandra Chin
Signed-off-by: Alexandra Chin alexandra.c...@tw.synaptics.com
---
Changes from v3:
- Incorporated Henrik's review comments
*remove 'else' after an error path return
*add input_mt_sync_frame() for pointer emulation effects
*correct names of touchscreen
- Replace printk with dev_err
Changes from v2:
- Incorporated Henrik's review comments
*directly report finger state with Type-B
- Against 3.7-rcX
*call input_mt_init_slots with INPUT_MT_DIRECT flag
drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 122 -
1 files changed, 57 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index 277491a..7876f6b 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -1,7 +1,7 @@
/**
*
- * Synaptics Register Mapped Interface (RMI4) I2C Physical Layer Driver.
- * Copyright (c) 2007-2010, Synaptics Incorporated
+ * Synaptics Register Mapped Interface (RMI4) I2C Touchscreen Driver.
+ * Copyright (c) 2007-2012, Synaptics Incorporated
*
* Author: Js HA js...@stericsson.com for ST-Ericsson
* Author: Naveen Kumar G naveen.gaddip...@stericsson.com for ST-Ericsson
@@ -31,6 +31,7 @@
#include linux/interrupt.h
#include linux/regulator/consumer.h
#include linux/module.h
+#include linux/input/mt.h
#include synaptics_i2c_rmi4.h
/* TODO: for multiple device support will need a per-device mutex */
@@ -63,12 +64,11 @@
#define MASK_4BIT 0x0F
#define MASK_3BIT 0x07
#define MASK_2BIT 0x03
-#define TOUCHPAD_CTRL_INTR 0x8
+#define TOUCHSCREEN_CTRL_INTR 0x8
#define PDT_START_SCAN_LOCATION (0x00E9)
#define PDT_END_SCAN_LOCATION (0x000A)
#define PDT_ENTRY_SIZE (0x0006)
-#define RMI4_NUMBER_OF_MAX_FINGERS (8)
-#define SYNAPTICS_RMI4_TOUCHPAD_FUNC_NUM (0x11)
+#define SYNAPTICS_RMI4_TOUCHSCREEN_FUNC_NUM(0x11)
#define SYNAPTICS_RMI4_DEVICE_CONTROL_FUNC_NUM (0x01)
/**
@@ -164,6 +164,7 @@ struct synaptics_rmi4_device_info {
* @regulator: pointer to the regulator structure
* @wait: wait queue structure variable
* @touch_stopped: flag to stop the thread function
+ * @fingers_supported: maximum supported fingers
*
* This structure gives the device data information.
*/
@@ -184,6 +185,7 @@ struct synaptics_rmi4_data {
struct regulator*regulator;
wait_queue_head_t wait;
booltouch_stopped;
+ unsigned char fingers_supported;
};
/**
@@ -291,34 +293,33 @@ exit:
}
/**
- * synpatics_rmi4_touchpad_report() - reports for the rmi4 touchpad device
+ * synpatics_rmi4_touchscreen_report() - reports for the rmi4 touchscreen
device
* @pdata: pointer to synaptics_rmi4_data structure
* @rfi: pointer to synaptics_rmi4_fn structure
*
- * This function calls to reports for the rmi4 touchpad device
+ * This function calls to reports for the rmi4 touchscreen device
*/
-static int synpatics_rmi4_touchpad_report(struct synaptics_rmi4_data *pdata,
+static int synpatics_rmi4_touchscreen_report(struct synaptics_rmi4_data *pdata,
struct synaptics_rmi4_fn *rfi)
{
/* number of touch points - fingers down in this case */
int touch_count = 0;
int finger;
- int fingers_supported;
int finger_registers;
int reg;
int finger_shift;
int finger_status;
int retval;
+ int x, y;
+ int wx, wy;
unsigned short data_base_addr;
unsigned short data_offset;
unsigned char data_reg_blk_size;
unsigned char values[2];
unsigned char data[DATA_LEN];
- int x[RMI4_NUMBER_OF_MAX_FINGERS];
- int y[RMI4_NUMBER_OF_MAX_FINGERS];
- int wx[RMI4_NUMBER_OF_MAX_FINGERS];
- int wy[RMI4_NUMBER_OF_MAX_FINGERS];
+ unsigned char fingers_supported = pdata-fingers_supported;
struct i2c_client *client = pdata-i2c_client;
+ struct input_dev *input_dev = pdata-input_dev;
/* get 2D sensor finger data */
/*
@@ -333,7 +334,6 @@ static int synpatics_rmi4_touchpad_report(struct
synaptics_rmi4_data *pdata,
* 10 = finger present but data may not be accurate,
* 11 = reserved for product use.
*/
- fingers_supported = rfi-num_of_data_points;
finger_registers= (fingers_supported +
