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path: root/drivers/input/mouse/psmouse-base.c
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Diffstat (limited to 'drivers/input/mouse/psmouse-base.c')
-rw-r--r--drivers/input/mouse/psmouse-base.c229
1 files changed, 147 insertions, 82 deletions
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 9f352fbd7b4f..de7e8bc17b1f 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -127,7 +127,7 @@ struct psmouse_protocol {
* relevant events to the input module once full packet has arrived.
*/
-static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
+psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
unsigned char *packet = psmouse->packet;
@@ -418,6 +418,49 @@ int psmouse_reset(struct psmouse *psmouse)
return 0;
}
+/*
+ * Here we set the mouse resolution.
+ */
+
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+ static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+ unsigned char p;
+
+ if (resolution == 0 || resolution > 200)
+ resolution = 200;
+
+ p = params[resolution / 50];
+ ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 25 << p;
+}
+
+/*
+ * Here we set the mouse report rate.
+ */
+
+static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
+{
+ static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+ unsigned char r;
+ int i = 0;
+
+ while (rates[i] > rate) i++;
+ r = rates[i];
+ ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
+ psmouse->rate = r;
+}
+
+/*
+ * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
+ */
+
+static int psmouse_poll(struct psmouse *psmouse)
+{
+ return ps2_command(&psmouse->ps2dev, psmouse->packet,
+ PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
+}
+
/*
* Genius NetMouse magic init.
@@ -603,6 +646,56 @@ static int cortron_detect(struct psmouse *psmouse, bool set_properties)
}
/*
+ * Apply default settings to the psmouse structure. Most of them will
+ * be overridden by individual protocol initialization routines.
+ */
+
+static void psmouse_apply_defaults(struct psmouse *psmouse)
+{
+ struct input_dev *input_dev = psmouse->dev;
+
+ memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
+ memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
+ memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
+ memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
+ memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
+
+ __set_bit(EV_KEY, input_dev->evbit);
+ __set_bit(EV_REL, input_dev->evbit);
+
+ __set_bit(BTN_LEFT, input_dev->keybit);
+ __set_bit(BTN_RIGHT, input_dev->keybit);
+
+ __set_bit(REL_X, input_dev->relbit);
+ __set_bit(REL_Y, input_dev->relbit);
+
+ psmouse->set_rate = psmouse_set_rate;
+ psmouse->set_resolution = psmouse_set_resolution;
+ psmouse->poll = psmouse_poll;
+ psmouse->protocol_handler = psmouse_process_byte;
+ psmouse->pktsize = 3;
+ psmouse->reconnect = NULL;
+ psmouse->disconnect = NULL;
+ psmouse->cleanup = NULL;
+ psmouse->pt_activate = NULL;
+ psmouse->pt_deactivate = NULL;
+}
+
+/*
+ * Apply default settings to the psmouse structure and call specified
+ * protocol detection or initialization routine.
+ */
+static int psmouse_do_detect(int (*detect)(struct psmouse *psmouse,
+ bool set_properties),
+ struct psmouse *psmouse, bool set_properties)
+{
+ if (set_properties)
+ psmouse_apply_defaults(psmouse);
+
+ return detect(psmouse, set_properties);
+}
+
+/*
* psmouse_extensions() probes for any extensions to the basic PS/2 protocol
* the mouse may have.
*/
@@ -616,7 +709,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
* We always check for lifebook because it does not disturb mouse
* (it only checks DMI information).
*/
- if (lifebook_detect(psmouse, set_properties) == 0) {
+ if (psmouse_do_detect(lifebook_detect, psmouse, set_properties) == 0) {
if (max_proto > PSMOUSE_IMEX) {
if (!set_properties || lifebook_init(psmouse) == 0)
return PSMOUSE_LIFEBOOK;
@@ -628,15 +721,18 @@ static int psmouse_extensions(struct psmouse *psmouse,
* upsets the thinkingmouse).
*/
- if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_do_detect(thinking_detect, psmouse, set_properties) == 0) {
return PSMOUSE_THINKPS;
+ }
/*
* Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
* support is disabled in config - we need to know if it is synaptics so we
* can reset it properly after probing for intellimouse.
*/
- if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
+ if (max_proto > PSMOUSE_PS2 &&
+ psmouse_do_detect(synaptics_detect, psmouse, set_properties) == 0) {
synaptics_hardware = true;
if (max_proto > PSMOUSE_IMEX) {
@@ -667,7 +763,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
*/
if (max_proto > PSMOUSE_IMEX) {
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
- if (alps_detect(psmouse, set_properties) == 0) {
+ if (psmouse_do_detect(alps_detect,
+ psmouse, set_properties) == 0) {
if (!set_properties || alps_init(psmouse) == 0)
return PSMOUSE_ALPS;
/*
@@ -681,7 +778,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
* Try OLPC HGPK touchpad.
*/
if (max_proto > PSMOUSE_IMEX &&
- hgpk_detect(psmouse, set_properties) == 0) {
+ psmouse_do_detect(hgpk_detect, psmouse, set_properties) == 0) {
if (!set_properties || hgpk_init(psmouse) == 0)
return PSMOUSE_HGPK;
/*
@@ -694,7 +791,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
* Try Elantech touchpad.
*/
if (max_proto > PSMOUSE_IMEX &&
- elantech_detect(psmouse, set_properties) == 0) {
+ psmouse_do_detect(elantech_detect, psmouse, set_properties) == 0) {
if (!set_properties || elantech_init(psmouse) == 0)
return PSMOUSE_ELANTECH;
/*
@@ -703,18 +800,21 @@ static int psmouse_extensions(struct psmouse *psmouse,
max_proto = PSMOUSE_IMEX;
}
-
if (max_proto > PSMOUSE_IMEX) {
- if (genius_detect(psmouse, set_properties) == 0)
+ if (psmouse_do_detect(genius_detect,
+ psmouse, set_properties) == 0)
return PSMOUSE_GENPS;
- if (ps2pp_init(psmouse, set_properties) == 0)
+ if (psmouse_do_detect(ps2pp_init,
+ psmouse, set_properties) == 0)
return PSMOUSE_PS2PP;
- if (trackpoint_detect(psmouse, set_properties) == 0)
+ if (psmouse_do_detect(trackpoint_detect,
+ psmouse, set_properties) == 0)
return PSMOUSE_TRACKPOINT;
- if (touchkit_ps2_detect(psmouse, set_properties) == 0)
+ if (psmouse_do_detect(touchkit_ps2_detect,
+ psmouse, set_properties) == 0)
return PSMOUSE_TOUCHKIT_PS2;
}
@@ -723,7 +823,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
* Trackpoint devices (causing TP_READ_ID command to time out).
*/
if (max_proto > PSMOUSE_IMEX) {
- if (fsp_detect(psmouse, set_properties) == 0) {
+ if (psmouse_do_detect(fsp_detect,
+ psmouse, set_properties) == 0) {
if (!set_properties || fsp_init(psmouse) == 0)
return PSMOUSE_FSP;
/*
@@ -741,17 +842,23 @@ static int psmouse_extensions(struct psmouse *psmouse,
ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
psmouse_reset(psmouse);
- if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
+ if (max_proto >= PSMOUSE_IMEX &&
+ psmouse_do_detect(im_explorer_detect,
+ psmouse, set_properties) == 0) {
return PSMOUSE_IMEX;
+ }
- if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
+ if (max_proto >= PSMOUSE_IMPS &&
+ psmouse_do_detect(intellimouse_detect,
+ psmouse, set_properties) == 0) {
return PSMOUSE_IMPS;
+ }
/*
* Okay, all failed, we have a standard mouse here. The number of the buttons
* is still a question, though. We assume 3.
*/
- ps2bare_detect(psmouse, set_properties);
+ psmouse_do_detect(ps2bare_detect, psmouse, set_properties);
if (synaptics_hardware) {
/*
@@ -819,6 +926,13 @@ static const struct psmouse_protocol psmouse_protocols[] = {
.detect = synaptics_detect,
.init = synaptics_init,
},
+ {
+ .type = PSMOUSE_SYNAPTICS_RELATIVE,
+ .name = "SynRelPS/2",
+ .alias = "synaptics-relative",
+ .detect = synaptics_detect,
+ .init = synaptics_init_relative,
+ },
#endif
#ifdef CONFIG_MOUSE_PS2_ALPS
{
@@ -958,39 +1072,6 @@ static int psmouse_probe(struct psmouse *psmouse)
}
/*
- * Here we set the mouse resolution.
- */
-
-void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
-{
- static const unsigned char params[] = { 0, 1, 2, 2, 3 };
- unsigned char p;
-
- if (resolution == 0 || resolution > 200)
- resolution = 200;
-
- p = params[resolution / 50];
- ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
- psmouse->resolution = 25 << p;
-}
-
-/*
- * Here we set the mouse report rate.
- */
-
-static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
-{
- static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
- unsigned char r;
- int i = 0;
-
- while (rates[i] > rate) i++;
- r = rates[i];
- ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
- psmouse->rate = r;
-}
-
-/*
* psmouse_initialize() initializes the mouse to a sane state.
*/
@@ -1035,16 +1116,6 @@ static void psmouse_deactivate(struct psmouse *psmouse)
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
}
-/*
- * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
- */
-
-static int psmouse_poll(struct psmouse *psmouse)
-{
- return ps2_command(&psmouse->ps2dev, psmouse->packet,
- PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
-}
-
/*
* psmouse_resync() attempts to re-validate current protocol.
@@ -1245,18 +1316,9 @@ static int psmouse_switch_protocol(struct psmouse *psmouse,
input_dev->dev.parent = &psmouse->ps2dev.serio->dev;
- input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
- input_dev->keybit[BIT_WORD(BTN_MOUSE)] =
- BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
- input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
-
- psmouse->set_rate = psmouse_set_rate;
- psmouse->set_resolution = psmouse_set_resolution;
- psmouse->poll = psmouse_poll;
- psmouse->protocol_handler = psmouse_process_byte;
- psmouse->pktsize = 3;
-
if (proto && (proto->detect || proto->init)) {
+ psmouse_apply_defaults(psmouse);
+
if (proto->detect && proto->detect(psmouse, true) < 0)
return -1;
@@ -1558,13 +1620,12 @@ static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char
static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count)
{
unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
- unsigned long value;
-
- if (strict_strtoul(buf, 10, &value))
- return -EINVAL;
+ unsigned int value;
+ int err;
- if ((unsigned int)value != value)
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
*field = value;
@@ -1671,10 +1732,12 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
- unsigned long value;
+ unsigned int value;
+ int err;
- if (strict_strtoul(buf, 10, &value))
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
psmouse->set_rate(psmouse, value);
return count;
@@ -1682,10 +1745,12 @@ static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
- unsigned long value;
+ unsigned int value;
+ int err;
- if (strict_strtoul(buf, 10, &value))
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
psmouse->set_resolution(psmouse, value);
return count;