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Input: elantech - use all 3 bytes when checking version 

Apparently all 3 bytes returned by ETP_FW_VERSION_QUERY are significant
and should be taken into account when matching hardware version/features.

Tested-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Dmitry Torokhov 2010-05-13 00:41:15 -07:00
parent 513d8be988
commit 504e8beed1
2 changed files with 14 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/input/mouse/elantech.c
View File

@ -184,7 +184,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
int fingers;
static int old_fingers;
if (etd->fw_version_maj == 0x01) {
if (etd->fw_version < 0x020000) {
/*
* byte 0: D U p1 p2 1 p3 R L
* byte 1: f 0 th tw x9 x8 y9 y8
@ -226,7 +226,7 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse)
input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
if ((etd->fw_version_maj == 0x01) &&
if (etd->fw_version < 0x020000 &&
(etd->capabilities & ETP_CAP_HAS_ROCKER)) {
/* rocker up */
input_report_key(dev, BTN_FORWARD, packet[0] & 0x40);
@ -320,7 +320,7 @@ static int elantech_check_parity_v1(struct psmouse *psmouse)
unsigned char p1, p2, p3;
/* Parity bits are placed differently */
if (etd->fw_version_maj == 0x01) {
if (etd->fw_version < 0x020000) {
/* byte 0: D U p1 p2 1 p3 R L */
p1 = (packet[0] & 0x20) >> 5;
p2 = (packet[0] & 0x10) >> 4;
@ -456,7 +456,7 @@ static void elantech_set_input_params(struct psmouse *psmouse)
switch (etd->hw_version) {
case 1:
/* Rocker button */
if ((etd->fw_version_maj == 0x01) &&
if (etd->fw_version < 0x020000 &&
(etd->capabilities & ETP_CAP_HAS_ROCKER)) {
__set_bit(BTN_FORWARD, dev->keybit);
__set_bit(BTN_BACK, dev->keybit);
@ -685,15 +685,14 @@ int elantech_init(struct psmouse *psmouse)
pr_err("elantech.c: failed to query firmware version.\n");
goto init_fail;
}
etd->fw_version_maj = param[0];
etd->fw_version_min = param[2];
etd->fw_version = (param[0] << 16) | (param[1] << 8) | param[2];
/*
* Assume every version greater than this is new EeePC style
* hardware with 6 byte packets
*/
if ((etd->fw_version_maj == 0x02 && etd->fw_version_min >= 0x30) ||
etd->fw_version_maj > 0x02) {
if (etd->fw_version >= 0x020030) {
etd->hw_version = 2;
/* For now show extra debug information */
etd->debug = 1;
@ -703,8 +702,9 @@ int elantech_init(struct psmouse *psmouse)
etd->hw_version = 1;
etd->paritycheck = 1;
}
pr_info("elantech.c: assuming hardware version %d, firmware version %d.%d\n",
etd->hw_version, etd->fw_version_maj, etd->fw_version_min);
pr_info("elantech.c: assuming hardware version %d, firmware version %d.%d.%d\n",
etd->hw_version, param[0], param[1], param[2]);
if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY, param)) {
pr_err("elantech.c: failed to query capabilities.\n");
@ -719,8 +719,8 @@ int elantech_init(struct psmouse *psmouse)
* a touch action starts causing the mouse cursor or scrolled page
* to jump. Enable a workaround.
*/
if (etd->fw_version_maj == 0x02 && etd->fw_version_min == 0x22) {
pr_info("elantech.c: firmware version 2.34 detected, "
if (etd->fw_version == 0x020022) {
pr_info("elantech.c: firmware version 2.0.34 detected, "
"enabling jumpy cursor workaround\n");
etd->jumpy_cursor = 1;
}

5
drivers/input/mouse/elantech.h
View File

@ -100,11 +100,10 @@ struct elantech_data {
unsigned char reg_26;
unsigned char debug;
unsigned char capabilities;
unsigned char fw_version_maj;
unsigned char fw_version_min;
unsigned char hw_version;
unsigned char paritycheck;
unsigned char jumpy_cursor;
unsigned char hw_version;
unsigned int fw_version;
unsigned char parity[256];
};