Hi Dmitry,
> +static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
> +{
> + struct pixcir_i2c_ts_data *tsdata = data;
> +
> + u8 touching;
> + u16 posx1, posy1, posx2, posy2;
> + u8 rdbuf[10], wrbuf[1] = { 0 };
> + int ret;
> +
> + ret = i2c_master_send(tsdata->client, wrbuf, sizeof(wrbuf));
> + if (ret != sizeof(wrbuf)) {
> + dev_err(&tsdata->client->dev,
> + "%s: i2c_master_send failed(), ret=%d\n",
> + __func__, ret);
> + return;
> + }
> +
> + ret = i2c_master_recv(tsdata->client, rdbuf, sizeof(rdbuf));
> + if (ret != sizeof(rdbuf)) {
> + dev_err(&tsdata->client->dev,
> + "%s: i2c_master_recv failed(), ret=%d\n",
> + __func__, ret);
> + return;
> + }
> +
> + touching = rdbuf[0];
> + posx1 = (rdbuf[3] << 8) | rdbuf[2];
> + posy1 = (rdbuf[5] << 8) | rdbuf[4];
> + posx2 = (rdbuf[7] << 8) | rdbuf[6];
> + posy2 = (rdbuf[9] << 8) | rdbuf[8];
> +
> + input_report_key(tsdata->input, BTN_TOUCH, touching);
> + input_report_abs(tsdata->input, ABS_X, posx1);
> + input_report_abs(tsdata->input, ABS_Y, posy1);
> +
> + input_report_abs(tsdata->input, ABS_MT_POSITION_X, posx1);
> + input_report_abs(tsdata->input, ABS_MT_POSITION_Y, posy1);
> + input_mt_sync(tsdata->input);
> +
> + if (touching == 2) {
> + input_report_abs(tsdata->input, ABS_MT_POSITION_X, posx2);
> + input_report_abs(tsdata->input, ABS_MT_POSITION_Y, posy2);
> + input_mt_sync(tsdata->input);
> + }
> +
> + input_sync(tsdata->input);
> +}
If the above function handles zero fingers as well, the MT finger
count comes out wrong in that case.
Cheers,
Henrik
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