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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.c99
1 files changed, 53 insertions, 46 deletions
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index af24313ff5bb..6ee9999a2eaa 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -114,7 +114,7 @@ struct psmouse_protocol {
static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
{
- struct input_dev *dev = &psmouse->dev;
+ struct input_dev *dev = psmouse->dev;
unsigned char *packet = psmouse->packet;
if (psmouse->pktcnt < psmouse->pktsize)
@@ -333,12 +333,11 @@ static int genius_detect(struct psmouse *psmouse, int set_properties)
return -1;
if (set_properties) {
- set_bit(BTN_EXTRA, psmouse->dev.keybit);
- set_bit(BTN_SIDE, psmouse->dev.keybit);
- set_bit(REL_WHEEL, psmouse->dev.relbit);
+ set_bit(BTN_EXTRA, psmouse->dev->keybit);
+ set_bit(BTN_SIDE, psmouse->dev->keybit);
+ set_bit(REL_WHEEL, psmouse->dev->relbit);
psmouse->vendor = "Genius";
- psmouse->name = "Wheel Mouse";
psmouse->pktsize = 4;
}
@@ -365,8 +364,8 @@ static int intellimouse_detect(struct psmouse *psmouse, int set_properties)
return -1;
if (set_properties) {
- set_bit(BTN_MIDDLE, psmouse->dev.keybit);
- set_bit(REL_WHEEL, psmouse->dev.relbit);
+ set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ set_bit(REL_WHEEL, psmouse->dev->relbit);
if (!psmouse->vendor) psmouse->vendor = "Generic";
if (!psmouse->name) psmouse->name = "Wheel Mouse";
@@ -398,10 +397,10 @@ static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
return -1;
if (set_properties) {
- set_bit(BTN_MIDDLE, psmouse->dev.keybit);
- set_bit(REL_WHEEL, psmouse->dev.relbit);
- set_bit(BTN_SIDE, psmouse->dev.keybit);
- set_bit(BTN_EXTRA, psmouse->dev.keybit);
+ set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ set_bit(REL_WHEEL, psmouse->dev->relbit);
+ set_bit(BTN_SIDE, psmouse->dev->keybit);
+ set_bit(BTN_EXTRA, psmouse->dev->keybit);
if (!psmouse->vendor) psmouse->vendor = "Generic";
if (!psmouse->name) psmouse->name = "Explorer Mouse";
@@ -433,7 +432,7 @@ static int thinking_detect(struct psmouse *psmouse, int set_properties)
return -1;
if (set_properties) {
- set_bit(BTN_EXTRA, psmouse->dev.keybit);
+ set_bit(BTN_EXTRA, psmouse->dev->keybit);
psmouse->vendor = "Kensington";
psmouse->name = "ThinkingMouse";
@@ -839,9 +838,9 @@ static void psmouse_disconnect(struct serio *serio)
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
- input_unregister_device(&psmouse->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
+ input_unregister_device(psmouse->dev);
kfree(psmouse);
if (parent)
@@ -852,16 +851,14 @@ static void psmouse_disconnect(struct serio *serio)
static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
{
- memset(&psmouse->dev, 0, sizeof(struct input_dev));
+ struct input_dev *input_dev = psmouse->dev;
- init_input_dev(&psmouse->dev);
+ input_dev->private = psmouse;
+ input_dev->cdev.dev = &psmouse->ps2dev.serio->dev;
- psmouse->dev.private = psmouse;
- psmouse->dev.dev = &psmouse->ps2dev.serio->dev;
-
- psmouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
- psmouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
- psmouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
+ input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+ input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
+ input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
psmouse->set_rate = psmouse_set_rate;
psmouse->set_resolution = psmouse_set_resolution;
@@ -883,12 +880,12 @@ static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_proto
sprintf(psmouse->devname, "%s %s %s",
psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name);
- psmouse->dev.name = psmouse->devname;
- psmouse->dev.phys = psmouse->phys;
- psmouse->dev.id.bustype = BUS_I8042;
- psmouse->dev.id.vendor = 0x0002;
- psmouse->dev.id.product = psmouse->type;
- psmouse->dev.id.version = psmouse->model;
+ input_dev->name = psmouse->devname;
+ input_dev->phys = psmouse->phys;
+ input_dev->id.bustype = BUS_I8042;
+ input_dev->id.vendor = 0x0002;
+ input_dev->id.product = psmouse->type;
+ input_dev->id.version = psmouse->model;
return 0;
}
@@ -900,7 +897,8 @@ static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_proto
static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
{
struct psmouse *psmouse, *parent = NULL;
- int retval;
+ struct input_dev *input_dev;
+ int retval = -ENOMEM;
down(&psmouse_sem);
@@ -913,12 +911,13 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
psmouse_deactivate(parent);
}
- if (!(psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL))) {
- retval = -ENOMEM;
+ psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!psmouse || !input_dev)
goto out;
- }
ps2_init(&psmouse->ps2dev, serio);
+ psmouse->dev = input_dev;
sprintf(psmouse->phys, "%s/input0", serio->phys);
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
@@ -926,16 +925,11 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
serio_set_drvdata(serio, psmouse);
retval = serio_open(serio, drv);
- if (retval) {
- serio_set_drvdata(serio, NULL);
- kfree(psmouse);
+ if (retval)
goto out;
- }
if (psmouse_probe(psmouse) < 0) {
serio_close(serio);
- serio_set_drvdata(serio, NULL);
- kfree(psmouse);
retval = -ENODEV;
goto out;
}
@@ -947,13 +941,11 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
psmouse_switch_protocol(psmouse, NULL);
- input_register_device(&psmouse->dev);
- printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
-
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
-
psmouse_initialize(psmouse);
+ input_register_device(psmouse->dev);
+
if (parent && parent->pt_activate)
parent->pt_activate(parent);
@@ -964,6 +956,12 @@ static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
retval = 0;
out:
+ if (retval) {
+ serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(psmouse);
+ }
+
/* If this is a pass-through port the parent needs to be re-activated */
if (parent)
psmouse_activate(parent);
@@ -1161,6 +1159,7 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
{
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
+ struct input_dev *new_dev;
struct psmouse_protocol *proto;
int retry = 0;
@@ -1170,9 +1169,13 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
if (psmouse->type == proto->type)
return count;
+ if (!(new_dev = input_allocate_device()))
+ return -ENOMEM;
+
while (serio->child) {
if (++retry > 3) {
printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n");
+ input_free_device(new_dev);
return -EIO;
}
@@ -1182,11 +1185,15 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
serio_pin_driver_uninterruptible(serio);
down(&psmouse_sem);
- if (serio->drv != &psmouse_drv)
+ if (serio->drv != &psmouse_drv) {
+ input_free_device(new_dev);
return -ENODEV;
+ }
- if (psmouse->type == proto->type)
+ if (psmouse->type == proto->type) {
+ input_free_device(new_dev);
return count; /* switched by other thread */
+ }
}
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
@@ -1199,8 +1206,9 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
psmouse->disconnect(psmouse);
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
- input_unregister_device(&psmouse->dev);
+ input_unregister_device(psmouse->dev);
+ psmouse->dev = new_dev;
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
if (psmouse_switch_protocol(psmouse, proto) < 0) {
@@ -1212,8 +1220,7 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
psmouse_initialize(psmouse);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
- input_register_device(&psmouse->dev);
- printk(KERN_INFO "input: %s on %s\n", psmouse->devname, serio->phys);
+ input_register_device(psmouse->dev);
if (parent && parent->pt_activate)
parent->pt_activate(parent);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-26 10:22:53 +0000