From: Dudley Du <dudley.dulixin@gmail.com>
To: dmitry.torokhov@gmail.com, rydberg@euromail.se
Cc: Dudley Du <dudley.dulixin@gmail.com>,
bleung@google.com, linux-input@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v11 13/19] input: cyapa: add gen5 trackpad device force re-calibrate function support
Date: Wed, 19 Nov 2014 16:37:45 +0800 [thread overview]
Message-ID: <1416386271-28167-14-git-send-email-dudley.dulixin@gmail.com> (raw)
In-Reply-To: <1416386271-28167-1-git-send-email-dudley.dulixin@gmail.com>
Add force re-calibrate function supported for gen5 trackpad device,
it can be used through sysfs calibrate interface.
TEST=test on Chromebooks.
Signed-off-by: Dudley Du <dudley.dulixin@gmail.com>
---
drivers/input/mouse/cyapa_gen5.c | 65 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c
index b401b2a..51bdf06 100644
--- a/drivers/input/mouse/cyapa_gen5.c
+++ b/drivers/input/mouse/cyapa_gen5.c
@@ -1580,6 +1580,70 @@ static int cyapa_gen5_suspend_scanning(struct cyapa *cyapa)
return 0;
}
+static int cyapa_gen5_calibrate_pwcs(struct cyapa *cyapa,
+ u8 calibrate_sensing_mode_type)
+{
+ u8 cmd[8];
+ u8 resp_data[6];
+ int resp_len;
+ int error;
+
+ /* Try to dump all bufferred data before doing command. */
+ cyapa_empty_pip_output_data(cyapa, NULL, NULL, NULL);
+
+ cmd[0] = 0x04;
+ cmd[1] = 0x00;
+ cmd[2] = 0x06;
+ cmd[3] = 0x00;
+ cmd[4] = GEN5_APP_CMD_REPORT_ID;
+ cmd[5] = 0x00;
+ cmd[6] = GEN5_CMD_CALIBRATE;
+ cmd[7] = calibrate_sensing_mode_type;
+ resp_len = sizeof(resp_data);
+ error = cyapa_i2c_pip_cmd_irq_sync(cyapa,
+ cmd, sizeof(cmd),
+ resp_data, &resp_len,
+ 5000, cyapa_gen5_sort_tsg_pip_app_resp_data, true);
+ if (error || !VALID_CMD_RESP_HEADER(resp_data, GEN5_CMD_CALIBRATE) ||
+ !GEN5_CMD_COMPLETE_SUCCESS(resp_data[5]))
+ return error < 0 ? error : -EAGAIN;
+
+ return 0;
+}
+
+static ssize_t cyapa_gen5_do_calibrate(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct cyapa *cyapa = dev_get_drvdata(dev);
+ int error, calibrate_error;
+
+ /* 1. Suspend Scanning*/
+ error = cyapa_gen5_suspend_scanning(cyapa);
+ if (error)
+ return error;
+
+ /* 2. Do mutual capacitance fine calibrate. */
+ calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
+ CYAPA_SENSING_MODE_MUTUAL_CAP_FINE);
+ if (calibrate_error)
+ goto resume_scanning;
+
+ /* 3. Do self capacitance calibrate. */
+ calibrate_error = cyapa_gen5_calibrate_pwcs(cyapa,
+ CYAPA_SENSING_MODE_SELF_CAP);
+ if (calibrate_error)
+ goto resume_scanning;
+
+resume_scanning:
+ /* 4. Resume Scanning*/
+ error = cyapa_gen5_resume_scanning(cyapa);
+ if (error || calibrate_error)
+ return error ? error : calibrate_error;
+
+ return count;
+}
+
static s32 two_complement_to_s32(s32 value, int num_bits)
{
if (value >> (num_bits - 1))
@@ -2556,6 +2620,7 @@ const struct cyapa_dev_ops cyapa_gen5_ops = {
.update_fw = cyapa_gen5_do_fw_update,
.show_baseline = cyapa_gen5_show_baseline,
+ .calibrate_store = cyapa_gen5_do_calibrate,
.initialize = cyapa_gen5_initialize,
--
1.9.1
next prev parent reply other threads:[~2014-11-19 8:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-19 8:37 [PATCH v11 00/19] input: cyapa: instruction of cyapa patches Dudley Du
2014-11-19 8:37 ` [PATCH v11 01/19] input: cyapa: modify code to following kernel code style Dudley Du
2014-11-19 8:37 ` [PATCH v11 02/19] input: cyapa: add device resource management infrastructure support Dudley Du
2014-11-19 8:37 ` [PATCH v11 03/19] input: cyapa: re-design driver to support multi-trackpad in one driver Dudley Du
2014-11-19 8:37 ` [PATCH v11 04/19] input: cyapa: add gen5 trackpad device basic functions support Dudley Du
2014-11-19 8:37 ` [PATCH v11 05/19] input: cyapa: add power management interfaces supported for the device Dudley Du
2014-11-19 8:37 ` [PATCH v11 06/19] input: cyapa: add runtime " Dudley Du
2014-11-19 8:37 ` [PATCH v11 07/19] input: cyapa: add sysfs interfaces supported in the cyapa driver Dudley Du
2014-11-19 8:37 ` [PATCH v11 08/19] input: cyapa: add gen3 trackpad device firmware update function support Dudley Du
2014-11-19 8:37 ` [PATCH v11 09/19] input: cyapa: add gen3 trackpad device read baseline " Dudley Du
2014-11-19 8:37 ` [PATCH v11 10/19] input: cyapa: add gen3 trackpad device force re-calibrate " Dudley Du
2014-11-19 8:37 ` [PATCH v11 11/19] input: cyapa: add gen5 trackpad device firmware update " Dudley Du
2014-11-19 8:37 ` [PATCH v11 12/19] input: cyapa: add gen5 trackpad device read baseline " Dudley Du
2014-11-19 8:37 ` Dudley Du [this message]
2014-11-19 8:37 ` [PATCH v11 14/19] input: cyapa: add read firmware image debugfs interface support Dudley Du
2014-11-19 8:37 ` [PATCH v11 15/19] input: cyapa: add gen3 trackpad device read firmware image function support Dudley Du
2014-11-19 8:37 ` [PATCH v11 16/19] input: cyapa: add gen5 " Dudley Du
2014-11-19 8:37 ` [PATCH v11 17/19] input: cyapa: add read sensors raw data debugfs interface support Dudley Du
2014-11-19 8:37 ` [PATCH v11 18/19] input: cyapa: add gen5 trackpad device read raw data function support Dudley Du
2014-11-19 8:37 ` [PATCH v11 19/19] input: cyapa: add acpi device id supported Dudley Du
2014-11-21 8:56 ` [PATCH v11 00/19] input: cyapa: instruction of cyapa patches Jeremiah Mahler
2014-11-24 3:06 ` Dudley Du
2014-11-24 8:50 ` Jeremiah Mahler
2014-11-25 10:07 ` [BUG] [PATCH] next: cyapa: fix inop touchpad after resume on Acer C720 Jeremiah Mahler
2014-11-26 6:01 ` Dudley Du
2014-11-26 19:59 ` Jeremiah Mahler
2014-11-26 6:16 ` Dudley Du
2014-11-26 20:02 ` Jeremiah Mahler
2014-11-27 5:45 ` Dudley Du
2014-11-27 9:05 ` Jeremiah Mahler
2014-11-27 18:16 ` Dmitry Torokhov
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