Hi Dmitry,
On 12/18/2013 07:48 PM, Dmitry Torokhov wrote:
> On Wed, Dec 18, 2013 at 02:51:18PM +0530, Roger Quadros wrote:
>> Some pixcir controllers e.g. tangoC family report finger IDs with
>> the co-ordinates and are more suitable for Type-B MT protocol.
>>
>> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
>> Acked-by: Mugunthan V N <mugunthanvnm@xxxxxx>
>> ---
>> drivers/input/touchscreen/pixcir_i2c_ts.c | 202 +++++++++++++++++++++++-------
>> 1 file changed, 155 insertions(+), 47 deletions(-)
>>
>> diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
>> index ff68246..9e14415 100644
>> --- a/drivers/input/touchscreen/pixcir_i2c_ts.c
>> +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
>> @@ -23,84 +23,173 @@
>> #include <linux/slab.h>
>> #include <linux/i2c.h>
>> #include <linux/input.h>
>> +#include <linux/input/mt.h>
>> #include <linux/input/pixcir_ts.h>
>> #include <linux/gpio.h>
>> #include <linux/of.h>
>> #include <linux/of_gpio.h>
>> #include <linux/of_device.h>
>>
>> +#define MAX_FINGERS 5 /* Maximum supported by the driver */
>> +
>> struct pixcir_i2c_ts_data {
>> struct i2c_client *client;
>> struct input_dev *input;
>> const struct pixcir_ts_platform_data *pdata;
>> bool exiting;
>> + u8 max_fingers; /* Maximum supported by the chip */
>> };
>>
>> -static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
>> +static void pixcir_ts_typea_report(struct pixcir_i2c_ts_data *tsdata)
>
> Hmm, I do not think we should keep Type A reports if we can do Type B.
> The protocols are not new and userspace should be able to handle MT-B by
> now.
>
It seems the controller the original driver was written for does not report
touch ID and just reports 2 touch co-ordinates. I'm not sure how this fits into
Type B reporting model.
cheers,
-roger
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