#include "synaptics.h"
#include "logips2pp.h"
#include "alps.h"
+#include "lifebook.h"
#define DRIVER_DESC "PS/2 mouse driver"
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static unsigned int psmouse_max_proto = -1U;
+static unsigned int psmouse_max_proto = PSMOUSE_AUTO;
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp);
static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp);
-static char *psmouse_proto_abbrev[] = { NULL, "bare", NULL, NULL, NULL, "imps", "exps", NULL, NULL, NULL };
#define param_check_proto_abbrev(name, p) __param_check(name, p, unsigned int)
#define param_set_proto_abbrev psmouse_set_maxproto
#define param_get_proto_abbrev psmouse_get_maxproto
module_param_named(resetafter, psmouse_resetafter, uint, 0644);
MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
+PSMOUSE_DEFINE_ATTR(protocol);
PSMOUSE_DEFINE_ATTR(rate);
PSMOUSE_DEFINE_ATTR(resolution);
PSMOUSE_DEFINE_ATTR(resetafter);
__obsolete_setup("psmouse_resetafter=");
__obsolete_setup("psmouse_rate=");
-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "ThinkPS/2", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2", "AlpsPS/2" };
+/*
+ * psmouse_sem protects all operations changing state of mouse
+ * (connecting, disconnecting, changing rate or resolution via
+ * sysfs). We could use a per-device semaphore but since there
+ * rarely more than one PS/2 mouse connected and since semaphore
+ * is taken in "slow" paths it is not worth it.
+ */
+static DECLARE_MUTEX(psmouse_sem);
+
+struct psmouse_protocol {
+ enum psmouse_type type;
+ char *name;
+ char *alias;
+ int maxproto;
+ int (*detect)(struct psmouse *, int);
+ int (*init)(struct psmouse *);
+};
/*
* psmouse_process_byte() analyzes the PS/2 data stream and reports
return -1;
if (set_properties) {
+ set_bit(BTN_MIDDLE, psmouse->dev.keybit);
set_bit(REL_WHEEL, psmouse->dev.relbit);
if (!psmouse->vendor) psmouse->vendor = "Generic";
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);
*/
static int ps2bare_detect(struct psmouse *psmouse, int set_properties)
{
- if (!psmouse->vendor) psmouse->vendor = "Generic";
- if (!psmouse->name) psmouse->name = "Mouse";
+ if (set_properties) {
+ if (!psmouse->vendor) psmouse->vendor = "Generic";
+ if (!psmouse->name) psmouse->name = "Mouse";
+ }
return 0;
}
+
/*
* psmouse_extensions() probes for any extensions to the basic PS/2 protocol
* the mouse may have.
{
int synaptics_hardware = 0;
+/*
+ * We always check for lifebook because it does not disturb mouse
+ * (it only checks DMI information).
+ */
+ if (lifebook_detect(psmouse, set_properties) == 0) {
+ if (max_proto > PSMOUSE_IMEX) {
+ if (!set_properties || lifebook_init(psmouse) == 0)
+ return PSMOUSE_LIFEBOOK;
+ }
+ }
+
/*
* Try Kensington ThinkingMouse (we try first, because synaptics probe
* upsets the thinkingmouse).
return PSMOUSE_PS2;
}
+static struct psmouse_protocol psmouse_protocols[] = {
+ {
+ .type = PSMOUSE_PS2,
+ .name = "PS/2",
+ .alias = "bare",
+ .maxproto = 1,
+ .detect = ps2bare_detect,
+ },
+ {
+ .type = PSMOUSE_PS2PP,
+ .name = "PS2++",
+ .alias = "logitech",
+ .detect = ps2pp_init,
+ },
+ {
+ .type = PSMOUSE_THINKPS,
+ .name = "ThinkPS/2",
+ .alias = "thinkps",
+ .detect = thinking_detect,
+ },
+ {
+ .type = PSMOUSE_GENPS,
+ .name = "GenPS/2",
+ .alias = "genius",
+ .detect = genius_detect,
+ },
+ {
+ .type = PSMOUSE_IMPS,
+ .name = "ImPS/2",
+ .alias = "imps",
+ .maxproto = 1,
+ .detect = intellimouse_detect,
+ },
+ {
+ .type = PSMOUSE_IMEX,
+ .name = "ImExPS/2",
+ .alias = "exps",
+ .maxproto = 1,
+ .detect = im_explorer_detect,
+ },
+ {
+ .type = PSMOUSE_SYNAPTICS,
+ .name = "SynPS/2",
+ .alias = "synaptics",
+ .detect = synaptics_detect,
+ .init = synaptics_init,
+ },
+ {
+ .type = PSMOUSE_ALPS,
+ .name = "AlpsPS/2",
+ .alias = "alps",
+ .detect = alps_detect,
+ .init = alps_init,
+ },
+ {
+ .type = PSMOUSE_LIFEBOOK,
+ .name = "LBPS/2",
+ .alias = "lifebook",
+ .init = lifebook_init,
+ },
+ {
+ .type = PSMOUSE_AUTO,
+ .name = "auto",
+ .alias = "any",
+ .maxproto = 1,
+ },
+};
+
+static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++)
+ if (psmouse_protocols[i].type == type)
+ return &psmouse_protocols[i];
+
+ WARN_ON(1);
+ return &psmouse_protocols[0];
+}
+
+static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
+{
+ struct psmouse_protocol *p;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
+ p = &psmouse_protocols[i];
+
+ if ((strlen(p->name) == len && !strncmp(p->name, name, len)) ||
+ (strlen(p->alias) == len && !strncmp(p->alias, name, len)))
+ return &psmouse_protocols[i];
+ }
+
+ return NULL;
+}
+
+
/*
* psmouse_probe() probes for a PS/2 mouse.
*/
static void psmouse_disconnect(struct serio *serio)
{
- struct psmouse *psmouse, *parent;
+ struct psmouse *psmouse, *parent = NULL;
+ psmouse = serio_get_drvdata(serio);
+
+ device_remove_file(&serio->dev, &psmouse_attr_protocol);
device_remove_file(&serio->dev, &psmouse_attr_rate);
device_remove_file(&serio->dev, &psmouse_attr_resolution);
device_remove_file(&serio->dev, &psmouse_attr_resetafter);
- psmouse = serio_get_drvdata(serio);
+ down(&psmouse_sem);
+
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
- if (parent->pt_deactivate)
- parent->pt_deactivate(parent);
+ psmouse_deactivate(parent);
}
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
+ if (parent && parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
input_unregister_device(&psmouse->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
kfree(psmouse);
+
+ if (parent)
+ psmouse_activate(parent);
+
+ up(&psmouse_sem);
+}
+
+static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
+{
+ memset(&psmouse->dev, 0, sizeof(struct input_dev));
+
+ init_input_dev(&psmouse->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);
+
+ psmouse->set_rate = psmouse_set_rate;
+ psmouse->set_resolution = psmouse_set_resolution;
+ psmouse->protocol_handler = psmouse_process_byte;
+ psmouse->pktsize = 3;
+
+ if (proto && (proto->detect || proto->init)) {
+ if (proto->detect && proto->detect(psmouse, 1) < 0)
+ return -1;
+
+ if (proto->init && proto->init(psmouse) < 0)
+ return -1;
+
+ psmouse->type = proto->type;
+ }
+ else
+ psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
+
+ 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;
+
+ return 0;
}
/*
struct psmouse *psmouse, *parent = NULL;
int retval;
+ down(&psmouse_sem);
+
/*
* If this is a pass-through port deactivate parent so the device
* connected to this port can be successfully identified
psmouse_deactivate(parent);
}
- if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL))) {
+ if (!(psmouse = kcalloc(1, sizeof(struct psmouse), GFP_KERNEL))) {
retval = -ENOMEM;
goto out;
}
- memset(psmouse, 0, sizeof(struct psmouse));
-
ps2_init(&psmouse->ps2dev, serio);
sprintf(psmouse->phys, "%s/input0", serio->phys);
- 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);
- psmouse->dev.private = psmouse;
- psmouse->dev.dev = &serio->dev;
+
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
serio_set_drvdata(serio, psmouse);
psmouse->resolution = psmouse_resolution;
psmouse->resetafter = psmouse_resetafter;
psmouse->smartscroll = psmouse_smartscroll;
- psmouse->set_rate = psmouse_set_rate;
- psmouse->set_resolution = psmouse_set_resolution;
- psmouse->protocol_handler = psmouse_process_byte;
- psmouse->pktsize = 3;
- psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
-
- sprintf(psmouse->devname, "%s %s %s",
- psmouse_protocols[psmouse->type], 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;
+ 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);
if (parent && parent->pt_activate)
parent->pt_activate(parent);
+ device_create_file(&serio->dev, &psmouse_attr_protocol);
device_create_file(&serio->dev, &psmouse_attr_rate);
device_create_file(&serio->dev, &psmouse_attr_resolution);
device_create_file(&serio->dev, &psmouse_attr_resetafter);
retval = 0;
out:
- /* If this is a pass-through port the parent awaits to be activated */
+ /* If this is a pass-through port the parent needs to be re-activated */
if (parent)
psmouse_activate(parent);
+ up(&psmouse_sem);
return retval;
}
return -1;
}
+ down(&psmouse_sem);
+
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
psmouse_deactivate(parent);
if (parent)
psmouse_activate(parent);
+ up(&psmouse_sem);
return rc;
}
if (serio->drv != &psmouse_drv) {
retval = -ENODEV;
- goto out;
+ goto out_unpin;
+ }
+
+ retval = down_interruptible(&psmouse_sem);
+ if (retval)
+ goto out_unpin;
+
+ if (psmouse->state == PSMOUSE_IGNORE) {
+ retval = -ENODEV;
+ goto out_up;
}
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
psmouse_deactivate(parent);
}
+
psmouse_deactivate(psmouse);
retval = handler(psmouse, buf, count);
- psmouse_activate(psmouse);
+ if (retval != -ENODEV)
+ psmouse_activate(psmouse);
+
if (parent)
psmouse_activate(parent);
-out:
+ out_up:
+ up(&psmouse_sem);
+ out_unpin:
serio_unpin_driver(serio);
return retval;
}
+static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, char *buf)
+{
+ return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name);
+}
+
+static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, const char *buf, size_t count)
+{
+ struct serio *serio = psmouse->ps2dev.serio;
+ struct psmouse *parent = NULL;
+ struct psmouse_protocol *proto;
+ int retry = 0;
+
+ if (!(proto = psmouse_protocol_by_name(buf, count)))
+ return -EINVAL;
+
+ if (psmouse->type == proto->type)
+ return count;
+
+ while (serio->child) {
+ if (++retry > 3) {
+ printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n");
+ return -EIO;
+ }
+
+ up(&psmouse_sem);
+ serio_unpin_driver(serio);
+ serio_unregister_child_port(serio);
+ serio_pin_driver_uninterruptible(serio);
+ down(&psmouse_sem);
+
+ if (serio->drv != &psmouse_drv)
+ return -ENODEV;
+
+ if (psmouse->type == proto->type)
+ return count; /* switched by other thread */
+ }
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ if (parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+ }
+
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ input_unregister_device(&psmouse->dev);
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ if (psmouse_switch_protocol(psmouse, proto) < 0) {
+ psmouse_reset(psmouse);
+ /* default to PSMOUSE_PS2 */
+ psmouse_switch_protocol(psmouse, &psmouse_protocols[0]);
+ }
+
+ 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);
+
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
+
+ return count;
+}
+
static ssize_t psmouse_attr_show_rate(struct psmouse *psmouse, char *buf)
{
return sprintf(buf, "%d\n", psmouse->rate);
static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
{
- int i;
+ struct psmouse_protocol *proto;
if (!val)
return -EINVAL;
- if (!strncmp(val, "any", 3)) {
- *((unsigned int *)kp->arg) = -1U;
- return 0;
- }
+ proto = psmouse_protocol_by_name(val, strlen(val));
- for (i = 0; i < ARRAY_SIZE(psmouse_proto_abbrev); i++) {
- if (!psmouse_proto_abbrev[i])
- continue;
+ if (!proto || !proto->maxproto)
+ return -EINVAL;
- if (!strncmp(val, psmouse_proto_abbrev[i], strlen(psmouse_proto_abbrev[i]))) {
- *((unsigned int *)kp->arg) = i;
- return 0;
- }
- }
+ *((unsigned int *)kp->arg) = proto->type;
- return -EINVAL; \
+ return 0; \
}
static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
{
- return sprintf(buffer, "%s\n",
- psmouse_max_proto < ARRAY_SIZE(psmouse_proto_abbrev) ?
- psmouse_proto_abbrev[psmouse_max_proto] : "any");
+ int type = *((unsigned int *)kp->arg);
+
+ return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
}
static int __init psmouse_init(void)
projects / powerpc.git / blobdiff