* the Free Software Foundation.
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#define psmouse_fmt(fmt) fmt
+
#include <linux/delay.h>
#include <linux/module.h>
-#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/init.h>
#include <linux/libps2.h>
+#include <linux/mutex.h>
+
#include "psmouse.h"
#include "synaptics.h"
#include "logips2pp.h"
#include "alps.h"
+#include "hgpk.h"
#include "lifebook.h"
#include "trackpoint.h"
+#include "touchkit_ps2.h"
+#include "elantech.h"
+#include "sentelic.h"
#define DRIVER_DESC "PS/2 mouse driver"
MODULE_LICENSE("GPL");
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 int psmouse_set_maxproto(const char *val, const struct kernel_param *);
+static int psmouse_get_maxproto(char *buffer, const struct kernel_param *kp);
+static struct kernel_param_ops param_ops_proto_abbrev = {
+ .set = psmouse_set_maxproto,
+ .get = psmouse_get_maxproto,
+};
#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(proto, psmouse_max_proto, proto_abbrev, 0644);
MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps, any). Useful for KVM switches.");
module_param_named(rate, psmouse_rate, uint, 0644);
MODULE_PARM_DESC(rate, "Report rate, in reports per second.");
-static unsigned int psmouse_smartscroll = 1;
+static bool psmouse_smartscroll = 1;
module_param_named(smartscroll, psmouse_smartscroll, bool, 0644);
MODULE_PARM_DESC(smartscroll, "Logitech Smartscroll autorepeat, 1 = enabled (default), 0 = disabled.");
-static unsigned int psmouse_resetafter;
+static unsigned int psmouse_resetafter = 5;
module_param_named(resetafter, psmouse_resetafter, uint, 0644);
MODULE_PARM_DESC(resetafter, "Reset device after so many bad packets (0 = never).");
+static unsigned int psmouse_resync_time;
+module_param_named(resync_time, psmouse_resync_time, uint, 0644);
+MODULE_PARM_DESC(resync_time, "How long can mouse stay idle before forcing resync (in seconds, 0 = never).");
+
PSMOUSE_DEFINE_ATTR(protocol, S_IWUSR | S_IRUGO,
NULL,
psmouse_attr_show_protocol, psmouse_attr_set_protocol);
PSMOUSE_DEFINE_ATTR(resetafter, S_IWUSR | S_IRUGO,
(void *) offsetof(struct psmouse, resetafter),
psmouse_show_int_attr, psmouse_set_int_attr);
+PSMOUSE_DEFINE_ATTR(resync_time, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, resync_time),
+ psmouse_show_int_attr, psmouse_set_int_attr);
static struct attribute *psmouse_attributes[] = {
&psmouse_attr_protocol.dattr.attr,
&psmouse_attr_rate.dattr.attr,
&psmouse_attr_resolution.dattr.attr,
&psmouse_attr_resetafter.dattr.attr,
+ &psmouse_attr_resync_time.dattr.attr,
NULL
};
.attrs = psmouse_attributes,
};
-__obsolete_setup("psmouse_noext");
-__obsolete_setup("psmouse_resolution=");
-__obsolete_setup("psmouse_smartscroll=");
-__obsolete_setup("psmouse_resetafter=");
-__obsolete_setup("psmouse_rate=");
-
/*
- * psmouse_sem protects all operations changing state of mouse
+ * psmouse_mutex 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);
+static DEFINE_MUTEX(psmouse_mutex);
+
+static struct workqueue_struct *kpsmoused_wq;
struct psmouse_protocol {
enum psmouse_type type;
- char *name;
- char *alias;
- int maxproto;
- int (*detect)(struct psmouse *, int);
+ bool maxproto;
+ bool ignore_parity; /* Protocol should ignore parity errors from KBC */
+ const char *name;
+ const char *alias;
+ int (*detect)(struct psmouse *, bool);
int (*init)(struct psmouse *);
};
* relevant events to the input module once full packet has arrived.
*/
-static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse, struct pt_regs *regs)
+psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
{
struct input_dev *dev = psmouse->dev;
unsigned char *packet = psmouse->packet;
* Full packet accumulated, process it
*/
- input_regs(dev, regs);
-
/*
* Scroll wheel on IntelliMice, scroll buttons on NetMice
*/
*/
if (psmouse->type == PSMOUSE_IMEX) {
- input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7));
- input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1);
- input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
+ switch (packet[3] & 0xC0) {
+ case 0x80: /* vertical scroll on IntelliMouse Explorer 4.0 */
+ input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
+ break;
+ case 0x40: /* horizontal scroll on IntelliMouse Explorer 4.0 */
+ input_report_rel(dev, REL_HWHEEL, (int) (packet[3] & 32) - (int) (packet[3] & 31));
+ break;
+ case 0x00:
+ case 0xC0:
+ input_report_rel(dev, REL_WHEEL, (int) (packet[3] & 8) - (int) (packet[3] & 7));
+ input_report_key(dev, BTN_SIDE, (packet[3] >> 4) & 1);
+ input_report_key(dev, BTN_EXTRA, (packet[3] >> 5) & 1);
+ break;
+ }
}
/*
}
/*
+ * Cortron PS2 Trackball reports SIDE button on the 4th bit of the first
+ * byte.
+ */
+ if (psmouse->type == PSMOUSE_CORTRON) {
+ input_report_key(dev, BTN_SIDE, (packet[0] >> 3) & 1);
+ packet[0] |= 0x08;
+ }
+
+/*
* Generic PS/2 Mouse
*/
return PSMOUSE_FULL_PACKET;
}
+void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
+ unsigned long delay)
+{
+ queue_delayed_work(kpsmoused_wq, work, delay);
+}
+
+/*
+ * __psmouse_set_state() sets new psmouse state and resets all flags.
+ */
+
+static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+ psmouse->state = new_state;
+ psmouse->pktcnt = psmouse->out_of_sync_cnt = 0;
+ psmouse->ps2dev.flags = 0;
+ psmouse->last = jiffies;
+}
+
+
+/*
+ * psmouse_set_state() sets new psmouse state and resets all flags and
+ * counters while holding serio lock so fighting with interrupt handler
+ * is not a concern.
+ */
+
+void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
+{
+ serio_pause_rx(psmouse->ps2dev.serio);
+ __psmouse_set_state(psmouse, new_state);
+ serio_continue_rx(psmouse->ps2dev.serio);
+}
+
+/*
+ * psmouse_handle_byte() processes one byte of the input data stream
+ * by calling corresponding protocol handler.
+ */
+
+static int psmouse_handle_byte(struct psmouse *psmouse)
+{
+ psmouse_ret_t rc = psmouse->protocol_handler(psmouse);
+
+ switch (rc) {
+ case PSMOUSE_BAD_DATA:
+ if (psmouse->state == PSMOUSE_ACTIVATED) {
+ psmouse_warn(psmouse,
+ "%s at %s lost sync at byte %d\n",
+ psmouse->name, psmouse->phys,
+ psmouse->pktcnt);
+ if (++psmouse->out_of_sync_cnt == psmouse->resetafter) {
+ __psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ psmouse_notice(psmouse,
+ "issuing reconnect request\n");
+ serio_reconnect(psmouse->ps2dev.serio);
+ return -1;
+ }
+ }
+ psmouse->pktcnt = 0;
+ break;
+
+ case PSMOUSE_FULL_PACKET:
+ psmouse->pktcnt = 0;
+ if (psmouse->out_of_sync_cnt) {
+ psmouse->out_of_sync_cnt = 0;
+ psmouse_notice(psmouse,
+ "%s at %s - driver resynced.\n",
+ psmouse->name, psmouse->phys);
+ }
+ break;
+
+ case PSMOUSE_GOOD_DATA:
+ break;
+ }
+ return 0;
+}
+
/*
- * psmouse_interrupt() handles incoming characters, either gathering them into
- * packets or passing them to the command routine as command output.
+ * psmouse_interrupt() handles incoming characters, either passing them
+ * for normal processing or gathering them as command response.
*/
static irqreturn_t psmouse_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags, struct pt_regs *regs)
+ unsigned char data, unsigned int flags)
{
struct psmouse *psmouse = serio_get_drvdata(serio);
- psmouse_ret_t rc;
if (psmouse->state == PSMOUSE_IGNORE)
goto out;
- if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
+ if (unlikely((flags & SERIO_TIMEOUT) ||
+ ((flags & SERIO_PARITY) && !psmouse->ignore_parity))) {
+
if (psmouse->state == PSMOUSE_ACTIVATED)
- printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
- flags & SERIO_TIMEOUT ? " timeout" : "",
- flags & SERIO_PARITY ? " bad parity" : "");
+ psmouse_warn(psmouse,
+ "bad data from KBC -%s%s\n",
+ flags & SERIO_TIMEOUT ? " timeout" : "",
+ flags & SERIO_PARITY ? " bad parity" : "");
ps2_cmd_aborted(&psmouse->ps2dev);
goto out;
}
if (ps2_handle_response(&psmouse->ps2dev, data))
goto out;
- if (psmouse->state == PSMOUSE_INITIALIZING)
+ if (psmouse->state <= PSMOUSE_RESYNCING)
goto out;
if (psmouse->state == PSMOUSE_ACTIVATED &&
psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
- printk(KERN_WARNING "psmouse.c: %s at %s lost synchronization, throwing %d bytes away.\n",
- psmouse->name, psmouse->phys, psmouse->pktcnt);
- psmouse->pktcnt = 0;
+ psmouse_info(psmouse, "%s at %s lost synchronization, throwing %d bytes away.\n",
+ psmouse->name, psmouse->phys, psmouse->pktcnt);
+ psmouse->badbyte = psmouse->packet[0];
+ __psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ psmouse_queue_work(psmouse, &psmouse->resync_work, 0);
+ goto out;
}
- psmouse->last = jiffies;
psmouse->packet[psmouse->pktcnt++] = data;
-
- if (psmouse->packet[0] == PSMOUSE_RET_BAT) {
- if (psmouse->pktcnt == 1)
+/*
+ * Check if this is a new device announcement (0xAA 0x00)
+ */
+ if (unlikely(psmouse->packet[0] == PSMOUSE_RET_BAT && psmouse->pktcnt <= 2)) {
+ if (psmouse->pktcnt == 1) {
+ psmouse->last = jiffies;
goto out;
+ }
- if (psmouse->pktcnt == 2) {
- if (psmouse->packet[1] == PSMOUSE_RET_ID) {
- psmouse->state = PSMOUSE_IGNORE;
- serio_reconnect(serio);
- goto out;
- }
- if (psmouse->type == PSMOUSE_SYNAPTICS) {
- /* neither 0xAA nor 0x00 are valid first bytes
- * for a packet in absolute mode
- */
- psmouse->pktcnt = 0;
- goto out;
- }
+ if (psmouse->packet[1] == PSMOUSE_RET_ID ||
+ (psmouse->type == PSMOUSE_HGPK &&
+ psmouse->packet[1] == PSMOUSE_RET_BAT)) {
+ __psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ serio_reconnect(serio);
+ goto out;
}
- }
+/*
+ * Not a new device, try processing first byte normally
+ */
+ psmouse->pktcnt = 1;
+ if (psmouse_handle_byte(psmouse))
+ goto out;
- rc = psmouse->protocol_handler(psmouse, regs);
+ psmouse->packet[psmouse->pktcnt++] = data;
+ }
- switch (rc) {
- case PSMOUSE_BAD_DATA:
- printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
- psmouse->name, psmouse->phys, psmouse->pktcnt);
- psmouse->pktcnt = 0;
-
- if (++psmouse->out_of_sync == psmouse->resetafter) {
- psmouse->state = PSMOUSE_IGNORE;
- printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
- serio_reconnect(psmouse->ps2dev.serio);
- }
- break;
+/*
+ * See if we need to force resync because mouse was idle for too long
+ */
+ if (psmouse->state == PSMOUSE_ACTIVATED &&
+ psmouse->pktcnt == 1 && psmouse->resync_time &&
+ time_after(jiffies, psmouse->last + psmouse->resync_time * HZ)) {
+ psmouse->badbyte = psmouse->packet[0];
+ __psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ psmouse_queue_work(psmouse, &psmouse->resync_work, 0);
+ goto out;
+ }
- case PSMOUSE_FULL_PACKET:
- psmouse->pktcnt = 0;
- if (psmouse->out_of_sync) {
- psmouse->out_of_sync = 0;
- printk(KERN_NOTICE "psmouse.c: %s at %s - driver resynched.\n",
- psmouse->name, psmouse->phys);
- }
- break;
+ psmouse->last = jiffies;
+ psmouse_handle_byte(psmouse);
- case PSMOUSE_GOOD_DATA:
- break;
- }
-out:
+ out:
return IRQ_HANDLED;
}
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.
*/
-static int genius_detect(struct psmouse *psmouse, int set_properties)
+static int genius_detect(struct psmouse *psmouse, bool set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
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_MIDDLE, psmouse->dev->keybit);
+ __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 = "Mouse";
psmouse->pktsize = 4;
}
/*
* IntelliMouse magic init.
*/
-static int intellimouse_detect(struct psmouse *psmouse, int set_properties)
+static int intellimouse_detect(struct psmouse *psmouse, bool set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
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";
+ if (!psmouse->vendor)
+ psmouse->vendor = "Generic";
+ if (!psmouse->name)
+ psmouse->name = "Wheel Mouse";
psmouse->pktsize = 4;
}
/*
* Try IntelliMouse/Explorer magic init.
*/
-static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
+static int im_explorer_detect(struct psmouse *psmouse, bool set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
if (param[0] != 4)
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);
+/* Magic to enable horizontal scrolling on IntelliMouse 4.0 */
+ param[0] = 200;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 80;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ param[0] = 40;
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
- if (!psmouse->vendor) psmouse->vendor = "Generic";
- if (!psmouse->name) psmouse->name = "Explorer Mouse";
+ if (set_properties) {
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(REL_WHEEL, psmouse->dev->relbit);
+ __set_bit(REL_HWHEEL, 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";
psmouse->pktsize = 4;
}
/*
* Kensington ThinkingMouse / ExpertMouse magic init.
*/
-static int thinking_detect(struct psmouse *psmouse, int set_properties)
+static int thinking_detect(struct psmouse *psmouse, bool set_properties)
{
struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
- unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
+ static const unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
int i;
param[0] = 10;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 0;
ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
- for (i = 0; seq[i]; i++)
- ps2_command(ps2dev, seq + i, PSMOUSE_CMD_SETRATE);
+ for (i = 0; i < ARRAY_SIZE(seq); i++) {
+ param[0] = seq[i];
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ }
ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
if (param[0] != 2)
return -1;
if (set_properties) {
- set_bit(BTN_EXTRA, psmouse->dev->keybit);
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_EXTRA, psmouse->dev->keybit);
psmouse->vendor = "Kensington";
psmouse->name = "ThinkingMouse";
/*
* Bare PS/2 protocol "detection". Always succeeds.
*/
-static int ps2bare_detect(struct psmouse *psmouse, int set_properties)
+static int ps2bare_detect(struct psmouse *psmouse, bool set_properties)
{
if (set_properties) {
- if (!psmouse->vendor) psmouse->vendor = "Generic";
- if (!psmouse->name) psmouse->name = "Mouse";
+ if (!psmouse->vendor)
+ psmouse->vendor = "Generic";
+ if (!psmouse->name)
+ psmouse->name = "Mouse";
+
+/*
+ * We have no way of figuring true number of buttons so let's
+ * assume that the device has 3.
+ */
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
}
return 0;
}
+/*
+ * Cortron PS/2 protocol detection. There's no special way to detect it, so it
+ * must be forced by sysfs protocol writing.
+ */
+static int cortron_detect(struct psmouse *psmouse, bool set_properties)
+{
+ if (set_properties) {
+ psmouse->vendor = "Cortron";
+ psmouse->name = "PS/2 Trackball";
+
+ __set_bit(BTN_MIDDLE, psmouse->dev->keybit);
+ __set_bit(BTN_SIDE, psmouse->dev->keybit);
+ }
+
+ return 0;
+}
+
+/*
+ * 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
*/
static int psmouse_extensions(struct psmouse *psmouse,
- unsigned int max_proto, int set_properties)
+ unsigned int max_proto, bool set_properties)
{
- int synaptics_hardware = 0;
+ bool synaptics_hardware = false;
/*
* 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;
* 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
+ * 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) {
- synaptics_hardware = 1;
+ if (max_proto > PSMOUSE_PS2 &&
+ psmouse_do_detect(synaptics_detect, psmouse, set_properties) == 0) {
+ synaptics_hardware = true;
if (max_proto > PSMOUSE_IMEX) {
- if (!set_properties || synaptics_init(psmouse) == 0)
+/*
+ * Try activating protocol, but check if support is enabled first, since
+ * we try detecting Synaptics even when protocol is disabled.
+ */
+ if (synaptics_supported() &&
+ (!set_properties || synaptics_init(psmouse) == 0)) {
return PSMOUSE_SYNAPTICS;
+ }
+
/*
* Some Synaptics touchpads can emulate extended protocols (like IMPS/2).
* Unfortunately Logitech/Genius probes confuse some firmware versions so
*/
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;
/*
}
}
- if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse, set_properties) == 0)
- return PSMOUSE_GENPS;
+/*
+ * Try OLPC HGPK touchpad.
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_do_detect(hgpk_detect, psmouse, set_properties) == 0) {
+ if (!set_properties || hgpk_init(psmouse) == 0)
+ return PSMOUSE_HGPK;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+
+/*
+ * Try Elantech touchpad.
+ */
+ if (max_proto > PSMOUSE_IMEX &&
+ psmouse_do_detect(elantech_detect, psmouse, set_properties) == 0) {
+ if (!set_properties || elantech_init(psmouse) == 0)
+ return PSMOUSE_ELANTECH;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+
+ if (max_proto > PSMOUSE_IMEX) {
+ if (psmouse_do_detect(genius_detect,
+ psmouse, set_properties) == 0)
+ return PSMOUSE_GENPS;
- if (max_proto > PSMOUSE_IMEX && ps2pp_init(psmouse, set_properties) == 0)
- return PSMOUSE_PS2PP;
+ if (psmouse_do_detect(ps2pp_init,
+ psmouse, set_properties) == 0)
+ return PSMOUSE_PS2PP;
+
+ if (psmouse_do_detect(trackpoint_detect,
+ psmouse, set_properties) == 0)
+ return PSMOUSE_TRACKPOINT;
+
+ if (psmouse_do_detect(touchkit_ps2_detect,
+ psmouse, set_properties) == 0)
+ return PSMOUSE_TOUCHKIT_PS2;
+ }
+
+/*
+ * Try Finger Sensing Pad. We do it here because its probe upsets
+ * Trackpoint devices (causing TP_READ_ID command to time out).
+ */
+ if (max_proto > PSMOUSE_IMEX) {
+ if (psmouse_do_detect(fsp_detect,
+ psmouse, set_properties) == 0) {
+ if (!set_properties || fsp_init(psmouse) == 0)
+ return PSMOUSE_FSP;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
+ }
+ }
/*
* Reset to defaults in case the device got confused by extended
- * protocol probes.
+ * protocol probes. Note that we follow up with full reset because
+ * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS.
*/
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;
-
-/*
- * Try to initialize the IBM TrackPoint
- */
- if (max_proto > PSMOUSE_IMEX && trackpoint_detect(psmouse, set_properties) == 0)
- return PSMOUSE_TRACKPOINT;
+ }
/*
* 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) {
/*
* extensions.
*/
psmouse_reset(psmouse);
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
}
return PSMOUSE_PS2;
}
-static struct psmouse_protocol psmouse_protocols[] = {
+static const struct psmouse_protocol psmouse_protocols[] = {
{
.type = PSMOUSE_PS2,
.name = "PS/2",
.alias = "bare",
- .maxproto = 1,
+ .maxproto = true,
+ .ignore_parity = true,
.detect = ps2bare_detect,
},
+#ifdef CONFIG_MOUSE_PS2_LOGIPS2PP
{
.type = PSMOUSE_PS2PP,
.name = "PS2++",
.alias = "logitech",
.detect = ps2pp_init,
},
+#endif
{
.type = PSMOUSE_THINKPS,
.name = "ThinkPS/2",
.type = PSMOUSE_IMPS,
.name = "ImPS/2",
.alias = "imps",
- .maxproto = 1,
+ .maxproto = true,
+ .ignore_parity = true,
.detect = intellimouse_detect,
},
{
.type = PSMOUSE_IMEX,
.name = "ImExPS/2",
.alias = "exps",
- .maxproto = 1,
+ .maxproto = true,
+ .ignore_parity = true,
.detect = im_explorer_detect,
},
+#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
{
.type = PSMOUSE_SYNAPTICS,
.name = "SynPS/2",
.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
+ {
.type = PSMOUSE_ALPS,
.name = "AlpsPS/2",
.alias = "alps",
.detect = alps_detect,
.init = alps_init,
},
+#endif
+#ifdef CONFIG_MOUSE_PS2_LIFEBOOK
{
.type = PSMOUSE_LIFEBOOK,
.name = "LBPS/2",
.alias = "lifebook",
.init = lifebook_init,
},
+#endif
+#ifdef CONFIG_MOUSE_PS2_TRACKPOINT
{
.type = PSMOUSE_TRACKPOINT,
.name = "TPPS/2",
.alias = "trackpoint",
.detect = trackpoint_detect,
},
+#endif
+#ifdef CONFIG_MOUSE_PS2_TOUCHKIT
+ {
+ .type = PSMOUSE_TOUCHKIT_PS2,
+ .name = "touchkitPS/2",
+ .alias = "touchkit",
+ .detect = touchkit_ps2_detect,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_OLPC
+ {
+ .type = PSMOUSE_HGPK,
+ .name = "OLPC HGPK",
+ .alias = "hgpk",
+ .detect = hgpk_detect,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_ELANTECH
+ {
+ .type = PSMOUSE_ELANTECH,
+ .name = "ETPS/2",
+ .alias = "elantech",
+ .detect = elantech_detect,
+ .init = elantech_init,
+ },
+#endif
+#ifdef CONFIG_MOUSE_PS2_SENTELIC
+ {
+ .type = PSMOUSE_FSP,
+ .name = "FSPPS/2",
+ .alias = "fsp",
+ .detect = fsp_detect,
+ .init = fsp_init,
+ },
+#endif
+ {
+ .type = PSMOUSE_CORTRON,
+ .name = "CortronPS/2",
+ .alias = "cortps",
+ .detect = cortron_detect,
+ },
{
.type = PSMOUSE_AUTO,
.name = "auto",
.alias = "any",
- .maxproto = 1,
+ .maxproto = true,
},
};
-static struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
+static const struct psmouse_protocol *psmouse_protocol_by_type(enum psmouse_type type)
{
int i;
return &psmouse_protocols[0];
}
-static struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
+static const struct psmouse_protocol *psmouse_protocol_by_name(const char *name, size_t len)
{
- struct psmouse_protocol *p;
+ const struct psmouse_protocol *p;
int i;
for (i = 0; i < ARRAY_SIZE(psmouse_protocols); i++) {
*/
if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
- printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys);
+ psmouse_warn(psmouse, "Failed to reset mouse on %s\n",
+ ps2dev->serio->phys);
return 0;
}
/*
- * Here we set the mouse resolution.
+ * psmouse_initialize() initializes the mouse to a sane state.
*/
-void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+static void psmouse_initialize(struct psmouse *psmouse)
{
- unsigned char params[] = { 0, 1, 2, 2, 3 };
-
- if (resolution == 0 || resolution > 200)
- resolution = 200;
+/*
+ * We set the mouse report rate, resolution and scaling.
+ */
- ps2_command(&psmouse->ps2dev, ¶ms[resolution / 50], PSMOUSE_CMD_SETRES);
- psmouse->resolution = 25 << params[resolution / 50];
+ if (psmouse_max_proto != PSMOUSE_PS2) {
+ psmouse->set_rate(psmouse, psmouse->rate);
+ psmouse->set_resolution(psmouse, psmouse->resolution);
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ }
}
/*
- * Here we set the mouse report rate.
+ * psmouse_activate() enables the mouse so that we get motion reports from it.
*/
-static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
+int psmouse_activate(struct psmouse *psmouse)
{
- unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
- int i = 0;
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+ psmouse_warn(psmouse, "Failed to enable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+ return -1;
+ }
- while (rates[i] > rate) i++;
- ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
- psmouse->rate = rates[i];
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+ return 0;
}
/*
- * psmouse_initialize() initializes the mouse to a sane state.
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
+ * reports from it unless we explicitly request it.
*/
-static void psmouse_initialize(struct psmouse *psmouse)
+int psmouse_deactivate(struct psmouse *psmouse)
{
-/*
- * We set the mouse into streaming mode.
- */
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE)) {
+ psmouse_warn(psmouse, "Failed to deactivate mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+ return -1;
+ }
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ return 0;
+}
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM);
/*
- * We set the mouse report rate, resolution and scaling.
+ * psmouse_resync() attempts to re-validate current protocol.
*/
- if (psmouse_max_proto != PSMOUSE_PS2) {
- psmouse->set_rate(psmouse, psmouse->rate);
- psmouse->set_resolution(psmouse, psmouse->resolution);
- ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+static void psmouse_resync(struct work_struct *work)
+{
+ struct psmouse *parent = NULL, *psmouse =
+ container_of(work, struct psmouse, resync_work.work);
+ struct serio *serio = psmouse->ps2dev.serio;
+ psmouse_ret_t rc = PSMOUSE_GOOD_DATA;
+ bool failed = false, enabled = false;
+ int i;
+
+ mutex_lock(&psmouse_mutex);
+
+ if (psmouse->state != PSMOUSE_RESYNCING)
+ goto out;
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
}
-}
/*
- * psmouse_set_state() sets new psmouse state and resets all flags and
- * counters while holding serio lock so fighting with interrupt handler
- * is not a concern.
+ * Some mice don't ACK commands sent while they are in the middle of
+ * transmitting motion packet. To avoid delay we use ps2_sendbyte()
+ * instead of ps2_command() which would wait for 200ms for an ACK
+ * that may never come.
+ * As an additional quirk ALPS touchpads may not only forget to ACK
+ * disable command but will stop reporting taps, so if we see that
+ * mouse at least once ACKs disable we will do full reconnect if ACK
+ * is missing.
*/
+ psmouse->num_resyncs++;
-static void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
-{
- serio_pause_rx(psmouse->ps2dev.serio);
- psmouse->state = new_state;
- psmouse->pktcnt = psmouse->out_of_sync = 0;
- psmouse->ps2dev.flags = 0;
- serio_continue_rx(psmouse->ps2dev.serio);
-}
+ if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
+ if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command)
+ failed = true;
+ } else
+ psmouse->acks_disable_command = true;
/*
- * psmouse_activate() enables the mouse so that we get motion reports from it.
+ * Poll the mouse. If it was reset the packet will be shorter than
+ * psmouse->pktsize and ps2_command will fail. We do not expect and
+ * do not handle scenario when mouse "upgrades" its protocol while
+ * disconnected since it would require additional delay. If we ever
+ * see a mouse that does it we'll adjust the code.
+ */
+ if (!failed) {
+ if (psmouse->poll(psmouse))
+ failed = true;
+ else {
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ for (i = 0; i < psmouse->pktsize; i++) {
+ psmouse->pktcnt++;
+ rc = psmouse->protocol_handler(psmouse);
+ if (rc != PSMOUSE_GOOD_DATA)
+ break;
+ }
+ if (rc != PSMOUSE_FULL_PACKET)
+ failed = true;
+ psmouse_set_state(psmouse, PSMOUSE_RESYNCING);
+ }
+ }
+/*
+ * Now try to enable mouse. We try to do that even if poll failed and also
+ * repeat our attempts 5 times, otherwise we may be left out with disabled
+ * mouse.
*/
+ for (i = 0; i < 5; i++) {
+ if (!ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+ enabled = true;
+ break;
+ }
+ msleep(200);
+ }
-static void psmouse_activate(struct psmouse *psmouse)
-{
- if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE))
- printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n",
- psmouse->ps2dev.serio->phys);
+ if (!enabled) {
+ psmouse_warn(psmouse, "failed to re-enable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+ failed = true;
+ }
- psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
-}
+ if (failed) {
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ psmouse_info(psmouse,
+ "resync failed, issuing reconnect request\n");
+ serio_reconnect(serio);
+ } else
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+ if (parent)
+ psmouse_activate(parent);
+ out:
+ mutex_unlock(&psmouse_mutex);
+}
/*
- * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
- * reports from it unless we explicitely request it.
+ * psmouse_cleanup() resets the mouse into power-on state.
*/
-static void psmouse_deactivate(struct psmouse *psmouse)
+static void psmouse_cleanup(struct serio *serio)
{
+ struct psmouse *psmouse = serio_get_drvdata(serio);
+ struct psmouse *parent = NULL;
+
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
+
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ /*
+ * Disable stream mode so cleanup routine can proceed undisturbed.
+ */
if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_DISABLE))
- printk(KERN_WARNING "psmouse.c: Failed to deactivate mouse on %s\n",
- psmouse->ps2dev.serio->phys);
+ psmouse_warn(psmouse, "Failed to disable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
- psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
-}
+ if (psmouse->cleanup)
+ psmouse->cleanup(psmouse);
+/*
+ * Reset the mouse to defaults (bare PS/2 protocol).
+ */
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
/*
- * psmouse_cleanup() resets the mouse into power-on state.
+ * Some boxes, such as HP nx7400, get terribly confused if mouse
+ * is not fully enabled before suspending/shutting down.
*/
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_ENABLE);
-static void psmouse_cleanup(struct serio *serio)
-{
- struct psmouse *psmouse = serio_get_drvdata(serio);
+ if (parent) {
+ if (parent->pt_deactivate)
+ parent->pt_deactivate(parent);
- psmouse_reset(psmouse);
+ psmouse_activate(parent);
+ }
+
+ mutex_unlock(&psmouse_mutex);
}
/*
sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group);
- down(&psmouse_sem);
+ mutex_lock(&psmouse_mutex);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ /* make sure we don't have a resync in progress */
+ mutex_unlock(&psmouse_mutex);
+ flush_workqueue(kpsmoused_wq);
+ mutex_lock(&psmouse_mutex);
+
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);
+ mutex_unlock(&psmouse_mutex);
}
-static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *proto)
+static int psmouse_switch_protocol(struct psmouse *psmouse,
+ const struct psmouse_protocol *proto)
{
+ const struct psmouse_protocol *selected_proto;
struct input_dev *input_dev = psmouse->dev;
- input_dev->private = psmouse;
- input_dev->cdev.dev = &psmouse->ps2dev.serio->dev;
-
- 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;
- psmouse->protocol_handler = psmouse_process_byte;
- psmouse->pktsize = 3;
+ input_dev->dev.parent = &psmouse->ps2dev.serio->dev;
if (proto && (proto->detect || proto->init)) {
- if (proto->detect && proto->detect(psmouse, 1) < 0)
+ psmouse_apply_defaults(psmouse);
+
+ if (proto->detect && proto->detect(psmouse, true) < 0)
return -1;
if (proto->init && proto->init(psmouse) < 0)
return -1;
psmouse->type = proto->type;
+ selected_proto = proto;
+ } else {
+ psmouse->type = psmouse_extensions(psmouse,
+ psmouse_max_proto, true);
+ selected_proto = psmouse_protocol_by_type(psmouse->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->ignore_parity = selected_proto->ignore_parity;
+
+ /*
+ * If mouse's packet size is 3 there is no point in polling the
+ * device in hopes to detect protocol reset - we won't get less
+ * than 3 bytes response anyhow.
+ */
+ if (psmouse->pktsize == 3)
+ psmouse->resync_time = 0;
+
+ /*
+ * Some smart KVMs fake response to POLL command returning just
+ * 3 bytes and messing up our resync logic, so if initial poll
+ * fails we won't try polling the device anymore. Hopefully
+ * such KVM will maintain initially selected protocol.
+ */
+ if (psmouse->resync_time && psmouse->poll(psmouse))
+ psmouse->resync_time = 0;
+
+ snprintf(psmouse->devname, sizeof(psmouse->devname), "%s %s %s",
+ selected_proto->name, psmouse->vendor, psmouse->name);
input_dev->name = psmouse->devname;
input_dev->phys = psmouse->phys;
{
struct psmouse *psmouse, *parent = NULL;
struct input_dev *input_dev;
- int retval = -ENOMEM;
+ int retval = 0, error = -ENOMEM;
- down(&psmouse_sem);
+ mutex_lock(&psmouse_mutex);
/*
* If this is a pass-through port deactivate parent so the device
psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL);
input_dev = input_allocate_device();
if (!psmouse || !input_dev)
- goto out;
+ goto err_free;
ps2_init(&psmouse->ps2dev, serio);
+ INIT_DELAYED_WORK(&psmouse->resync_work, psmouse_resync);
psmouse->dev = input_dev;
- sprintf(psmouse->phys, "%s/input0", serio->phys);
+ snprintf(psmouse->phys, sizeof(psmouse->phys), "%s/input0", serio->phys);
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
serio_set_drvdata(serio, psmouse);
- retval = serio_open(serio, drv);
- if (retval)
- goto out;
+ error = serio_open(serio, drv);
+ if (error)
+ goto err_clear_drvdata;
if (psmouse_probe(psmouse) < 0) {
- serio_close(serio);
- retval = -ENODEV;
- goto out;
+ error = -ENODEV;
+ goto err_close_serio;
}
psmouse->rate = psmouse_rate;
psmouse->resolution = psmouse_resolution;
psmouse->resetafter = psmouse_resetafter;
+ psmouse->resync_time = parent ? 0 : psmouse_resync_time;
psmouse->smartscroll = psmouse_smartscroll;
psmouse_switch_protocol(psmouse, NULL);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
psmouse_initialize(psmouse);
- input_register_device(psmouse->dev);
+ error = input_register_device(psmouse->dev);
+ if (error)
+ goto err_protocol_disconnect;
if (parent && parent->pt_activate)
parent->pt_activate(parent);
- sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
+ error = sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
+ if (error)
+ goto err_pt_deactivate;
psmouse_activate(psmouse);
- retval = 0;
-
-out:
- if (retval) {
- serio_set_drvdata(serio, NULL);
- input_free_device(input_dev);
- kfree(psmouse);
- }
-
+ out:
/* If this is a pass-through port the parent needs to be re-activated */
if (parent)
psmouse_activate(parent);
- up(&psmouse_sem);
+ mutex_unlock(&psmouse_mutex);
return retval;
+
+ err_pt_deactivate:
+ if (parent && parent->pt_deactivate)
+ parent->pt_deactivate(parent);
+ input_unregister_device(psmouse->dev);
+ input_dev = NULL; /* so we don't try to free it below */
+ err_protocol_disconnect:
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ err_close_serio:
+ serio_close(serio);
+ err_clear_drvdata:
+ serio_set_drvdata(serio, NULL);
+ err_free:
+ input_free_device(input_dev);
+ kfree(psmouse);
+
+ retval = error;
+ goto out;
}
struct psmouse *psmouse = serio_get_drvdata(serio);
struct psmouse *parent = NULL;
struct serio_driver *drv = serio->drv;
+ unsigned char type;
int rc = -1;
if (!drv || !psmouse) {
- printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
+ psmouse_dbg(psmouse,
+ "reconnect request, but serio is disconnected, ignoring...\n");
return -1;
}
- down(&psmouse_sem);
+ mutex_lock(&psmouse_mutex);
if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
parent = serio_get_drvdata(serio->parent);
if (psmouse->reconnect) {
if (psmouse->reconnect(psmouse))
goto out;
- } else if (psmouse_probe(psmouse) < 0 ||
- psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
- goto out;
+ } else {
+ psmouse_reset(psmouse);
- /* ok, the device type (and capabilities) match the old one,
- * we can continue using it, complete intialization
+ if (psmouse_probe(psmouse) < 0)
+ goto out;
+
+ type = psmouse_extensions(psmouse, psmouse_max_proto, false);
+ if (psmouse->type != type)
+ goto out;
+ }
+
+ /*
+ * OK, the device type (and capabilities) match the old one,
+ * we can continue using it, complete initialization
*/
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
if (parent)
psmouse_activate(parent);
- up(&psmouse_sem);
+ mutex_unlock(&psmouse_mutex);
return rc;
}
struct serio *serio = to_serio_port(dev);
struct psmouse_attribute *attr = to_psmouse_attr(devattr);
struct psmouse *psmouse;
- int retval;
-
- retval = serio_pin_driver(serio);
- if (retval)
- return retval;
-
- if (serio->drv != &psmouse_drv) {
- retval = -ENODEV;
- goto out;
- }
psmouse = serio_get_drvdata(serio);
- retval = attr->show(psmouse, attr->data, buf);
-
-out:
- serio_unpin_driver(serio);
- return retval;
+ return attr->show(psmouse, attr->data, buf);
}
ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr,
struct psmouse *psmouse, *parent = NULL;
int retval;
- retval = serio_pin_driver(serio);
- if (retval)
- return retval;
-
- if (serio->drv != &psmouse_drv) {
- retval = -ENODEV;
- goto out_unpin;
- }
-
- retval = down_interruptible(&psmouse_sem);
+ retval = mutex_lock_interruptible(&psmouse_mutex);
if (retval)
- goto out_unpin;
+ goto out;
psmouse = serio_get_drvdata(serio);
- if (psmouse->state == PSMOUSE_IGNORE) {
- retval = -ENODEV;
- goto out_up;
- }
+ if (attr->protect) {
+ if (psmouse->state == PSMOUSE_IGNORE) {
+ retval = -ENODEV;
+ goto out_unlock;
+ }
- if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
- parent = serio_get_drvdata(serio->parent);
- psmouse_deactivate(parent);
- }
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
- psmouse_deactivate(psmouse);
+ psmouse_deactivate(psmouse);
+ }
retval = attr->set(psmouse, attr->data, buf, count);
- if (retval != -ENODEV)
- psmouse_activate(psmouse);
+ if (attr->protect) {
+ if (retval != -ENODEV)
+ psmouse_activate(psmouse);
- if (parent)
- psmouse_activate(parent);
+ if (parent)
+ psmouse_activate(parent);
+ }
- out_up:
- up(&psmouse_sem);
- out_unpin:
- serio_unpin_driver(serio);
+ out_unlock:
+ mutex_unlock(&psmouse_mutex);
+ out:
return retval;
}
static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char *buf)
{
- unsigned long *field = (unsigned long *)((char *)psmouse + (size_t)offset);
+ unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
- return sprintf(buf, "%lu\n", *field);
+ return sprintf(buf, "%u\n", *field);
}
static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count)
{
- unsigned long *field = (unsigned long *)((char *)psmouse + (size_t)offset);
- unsigned long value;
- char *rest;
+ unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
+ unsigned int value;
+ int err;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
*field = value;
{
struct serio *serio = psmouse->ps2dev.serio;
struct psmouse *parent = NULL;
- struct input_dev *new_dev;
- struct psmouse_protocol *proto;
+ struct input_dev *old_dev, *new_dev;
+ const struct psmouse_protocol *proto, *old_proto;
+ int error;
int retry = 0;
- if (!(proto = psmouse_protocol_by_name(buf, count)))
+ proto = psmouse_protocol_by_name(buf, count);
+ if (!proto)
return -EINVAL;
if (psmouse->type == proto->type)
return count;
- if (!(new_dev = input_allocate_device()))
+ new_dev = input_allocate_device();
+ if (!new_dev)
return -ENOMEM;
- while (serio->child) {
+ while (!list_empty(&serio->children)) {
if (++retry > 3) {
- printk(KERN_WARNING "psmouse: failed to destroy child port, protocol change aborted.\n");
+ psmouse_warn(psmouse,
+ "failed to destroy children ports, protocol change aborted.\n");
input_free_device(new_dev);
return -EIO;
}
- up(&psmouse_sem);
- serio_unpin_driver(serio);
+ mutex_unlock(&psmouse_mutex);
serio_unregister_child_port(serio);
- serio_pin_driver_uninterruptible(serio);
- down(&psmouse_sem);
+ mutex_lock(&psmouse_mutex);
if (serio->drv != &psmouse_drv) {
input_free_device(new_dev);
parent->pt_deactivate(parent);
}
+ old_dev = psmouse->dev;
+ old_proto = psmouse_protocol_by_type(psmouse->type);
+
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
psmouse_set_state(psmouse, PSMOUSE_IGNORE);
- input_unregister_device(psmouse->dev);
psmouse->dev = new_dev;
psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
psmouse_initialize(psmouse);
psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
- input_register_device(psmouse->dev);
+ error = input_register_device(psmouse->dev);
+ if (error) {
+ if (psmouse->disconnect)
+ psmouse->disconnect(psmouse);
+
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ input_free_device(new_dev);
+ psmouse->dev = old_dev;
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+ psmouse_switch_protocol(psmouse, old_proto);
+ psmouse_initialize(psmouse);
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
+ return error;
+ }
+
+ input_unregister_device(old_dev);
if (parent && parent->pt_activate)
parent->pt_activate(parent);
static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
- unsigned long value;
- char *rest;
+ unsigned int value;
+ int err;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
psmouse->set_rate(psmouse, value);
return count;
static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
- unsigned long value;
- char *rest;
+ unsigned int value;
+ int err;
- value = simple_strtoul(buf, &rest, 10);
- if (*rest)
- return -EINVAL;
+ err = kstrtouint(buf, 10, &value);
+ if (err)
+ return err;
psmouse->set_resolution(psmouse, value);
return count;
}
-static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
+static int psmouse_set_maxproto(const char *val, const struct kernel_param *kp)
{
- struct psmouse_protocol *proto;
+ const struct psmouse_protocol *proto;
if (!val)
return -EINVAL;
return 0;
}
-static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
+static int psmouse_get_maxproto(char *buffer, const struct kernel_param *kp)
{
int type = *((unsigned int *)kp->arg);
- return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
+ return sprintf(buffer, "%s", psmouse_protocol_by_type(type)->name);
}
static int __init psmouse_init(void)
{
- serio_register_driver(&psmouse_drv);
- return 0;
+ int err;
+
+ lifebook_module_init();
+ synaptics_module_init();
+ hgpk_module_init();
+
+ kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
+ if (!kpsmoused_wq) {
+ pr_err("failed to create kpsmoused workqueue\n");
+ return -ENOMEM;
+ }
+
+ err = serio_register_driver(&psmouse_drv);
+ if (err)
+ destroy_workqueue(kpsmoused_wq);
+
+ return err;
}
static void __exit psmouse_exit(void)
{
serio_unregister_driver(&psmouse_drv);
+ destroy_workqueue(kpsmoused_wq);
}
module_init(psmouse_init);
projects / linux-flexiantxendom0-3.2.10.git / blobdiff