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Subject[PATCH v2 5/5] Input: sentelic - improving packet debugging information
Date
From: Oskari Saarenmaa <os@ohmu.fi>

Incorporating detail message submitted by Oskari Saarenmaa <os@ohmu.fi>.
Whilst here, also converting a few common absolute coordinate extraction
code into macros.

Signed-off-by: Oskari Saarenmaa <os@ohmu.fi>
Signed-off-by: Tai-hwa Liang <avatar@sentelic.com>
---
drivers/input/mouse/sentelic.c | 43 +++++++++++++++++++++++++++++++--------
1 files changed, 34 insertions(+), 9 deletions(-)
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index 4fe9474..6838829 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -37,6 +37,9 @@
#define FSP_CMD_TIMEOUT 200
#define FSP_CMD_TIMEOUT2 30

+#define GET_ABS_X(packet) ((packet[1] << 2) | ((packet[3] >> 2) & 0x03))
+#define GET_ABS_Y(packet) ((packet[2] << 2) | (packet[3] & 0x03))
+
/** Driver version. */
static const char fsp_drv_ver[] = "1.0.0-K";

@@ -620,18 +623,40 @@ static struct attribute_group fsp_attribute_group = {
.attrs = fsp_attributes,
};

-#ifdef FSP_DEBUG
-static void fsp_packet_debug(unsigned char packet[])
+#ifdef FSP_DEBUG
+static void fsp_packet_debug(struct psmouse *psmouse, unsigned char packet[])
{
static unsigned int ps2_packet_cnt;
static unsigned int ps2_last_second;
unsigned int jiffies_msec;
+ const char *packet_type = "UNKNOWN";
+ unsigned short abs_x = 0, abs_y = 0;
+
+ /* Interpret & dump the packet data. */
+ switch (packet[0] >> FSP_PKT_TYPE_SHIFT) {
+ case FSP_PKT_TYPE_ABS:
+ packet_type = "Absolute";
+ abs_x = GET_ABS_X(packet);
+ abs_y = GET_ABS_Y(packet);
+ break;
+ case FSP_PKT_TYPE_NORMAL:
+ packet_type = "Normal";
+ break;
+ case FSP_PKT_TYPE_NOTIFY:
+ packet_type = "Notify";
+ break;
+ case FSP_PKT_TYPE_NORMAL_OPC:
+ packet_type = "Normal-OPC";
+ break;
+ }

ps2_packet_cnt++;
jiffies_msec = jiffies_to_msecs(jiffies);
psmouse_dbg(psmouse,
- "%08dms PS/2 packets: %02x, %02x, %02x, %02x\n",
- jiffies_msec, packet[0], packet[1], packet[2], packet[3]);
+ "%08dms %s packets: %02x, %02x, %02x, %02x; "
+ "abs_x: %d, abs_y: %d\n",
+ jiffies_msec, packet_type,
+ packet[0], packet[1], packet[2], packet[3], abs_x, abs_y);

if (jiffies_msec - ps2_last_second > 1000) {
psmouse_dbg(psmouse, "PS/2 packets/sec = %d\n", ps2_packet_cnt);
@@ -640,7 +665,7 @@ static void fsp_packet_debug(unsigned char packet[])
}
}
#else
-static void fsp_packet_debug(unsigned char packet[])
+static void fsp_packet_debug(struct psmouse *psmouse, unsigned char packet[])
{
}
#endif
@@ -673,6 +698,8 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
* Full packet accumulated, process it
*/

+ fsp_packet_debug(psmouse, packet);
+
switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) {
case FSP_PKT_TYPE_NOTIFY:
if (packet[1] != FSP_NOTIFY_MSG_GID)
@@ -702,8 +729,8 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
break;

case FSP_PKT_TYPE_ABS:
- abs_x = (packet[1] << 2) | ((packet[3] >> 2) & 0x03);
- abs_y = (packet[2] << 2) | (packet[3] & 0x03);
+ abs_x = GET_ABS_X(packet);
+ abs_y = GET_ABS_Y(packet);

if (packet[0] & FSP_PB0_MFMC) {
/*
@@ -814,8 +841,6 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)

input_sync(dev);

- fsp_packet_debug(packet);
-
return PSMOUSE_FULL_PACKET;
}

--
1.7.9.1


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