* PS/2 mouse driver
*
* Copyright (c) 1999-2002 Vojtech Pavlik
+ * Copyright (c) 2003-2004 Dmitry Torokhov
*/
/*
#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 "lifebook.h"
+#include "trackpoint.h"
+
+#define DRIVER_DESC "PS/2 mouse driver"
MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
-MODULE_DESCRIPTION("PS/2 mouse driver");
+MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static char *psmouse_proto;
-static unsigned int psmouse_max_proto = -1U;
-module_param_named(proto, psmouse_proto, charp, 0);
-MODULE_PARM_DESC(proto, "Highest protocol extension to probe (bare, imps, exps). Useful for KVM switches.");
-
-int psmouse_resolution = 200;
-module_param_named(resolution, psmouse_resolution, uint, 0);
+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);
+#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.");
+
+static unsigned int psmouse_resolution = 200;
+module_param_named(resolution, psmouse_resolution, uint, 0644);
MODULE_PARM_DESC(resolution, "Resolution, in dpi.");
-unsigned int psmouse_rate = 100;
-module_param_named(rate, psmouse_rate, uint, 0);
+static unsigned int psmouse_rate = 100;
+module_param_named(rate, psmouse_rate, uint, 0644);
MODULE_PARM_DESC(rate, "Report rate, in reports per second.");
-int psmouse_smartscroll = 1;
-module_param_named(smartscroll, psmouse_smartscroll, bool, 0);
+static unsigned int 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;
-module_param_named(resetafter, psmouse_resetafter, uint, 0);
+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(rate, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, rate),
+ psmouse_show_int_attr, psmouse_attr_set_rate);
+PSMOUSE_DEFINE_ATTR(resolution, S_IWUSR | S_IRUGO,
+ (void *) offsetof(struct psmouse, resolution),
+ psmouse_show_int_attr, psmouse_attr_set_resolution);
+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
+};
+
+static struct attribute_group psmouse_attribute_group = {
+ .attrs = psmouse_attributes,
+};
+
__obsolete_setup("psmouse_noext");
__obsolete_setup("psmouse_resolution=");
__obsolete_setup("psmouse_smartscroll=");
__obsolete_setup("psmouse_resetafter=");
__obsolete_setup("psmouse_rate=");
-static char *psmouse_protocols[] = { "None", "PS/2", "PS2++", "PS2T++", "GenPS/2", "ImPS/2", "ImExPS/2", "SynPS/2"};
+/*
+ * 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 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);
+ int (*init)(struct psmouse *);
+};
/*
* psmouse_process_byte() analyzes the PS/2 data stream and reports
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 < 3 + (psmouse->type >= PSMOUSE_GENPS))
+ if (psmouse->pktcnt < psmouse->pktsize)
return PSMOUSE_GOOD_DATA;
/*
input_regs(dev, regs);
-/*
- * The PS2++ protocol is a little bit complex
- */
-
- if (psmouse->type == PSMOUSE_PS2PP || psmouse->type == PSMOUSE_PS2TPP)
- ps2pp_process_packet(psmouse);
-
/*
* Scroll wheel on IntelliMice, scroll buttons on NetMice
*/
input_report_key(dev, BTN_EXTRA, (packet[0] >> 7) & 1);
}
+/*
+ * Extra button on ThinkingMouse
+ */
+ if (psmouse->type == PSMOUSE_THINKPS) {
+ input_report_key(dev, BTN_EXTRA, (packet[0] >> 3) & 1);
+ /* Without this bit of weirdness moving up gives wildly high Y changes. */
+ packet[1] |= (packet[0] & 0x40) << 1;
+ }
+
/*
* Generic PS/2 Mouse
*/
}
/*
- * psmouse_interrupt() handles incoming characters, either gathering them into
- * packets or passing them to the command routine as command output.
+ * __psmouse_set_state() sets new psmouse state and resets all flags.
*/
-static irqreturn_t psmouse_interrupt(struct serio *serio,
- unsigned char data, unsigned int flags, struct pt_regs *regs)
+static inline void __psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state)
{
- struct psmouse *psmouse = serio->private;
- psmouse_ret_t rc;
-
- if (psmouse->state == PSMOUSE_IGNORE)
- goto out;
-
- if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
- 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" : "");
- if (psmouse->acking) {
- psmouse->ack = -1;
- psmouse->acking = 0;
- }
- psmouse->pktcnt = 0;
- goto out;
- }
-
- if (psmouse->acking) {
- switch (data) {
- case PSMOUSE_RET_ACK:
- psmouse->ack = 1;
- break;
- case PSMOUSE_RET_NAK:
- psmouse->ack = -1;
- break;
- default:
- psmouse->ack = 1; /* Workaround for mice which don't ACK the Get ID command */
- if (psmouse->cmdcnt)
- psmouse->cmdbuf[--psmouse->cmdcnt] = data;
- break;
- }
- psmouse->acking = 0;
- goto out;
- }
-
- if (psmouse->cmdcnt) {
- psmouse->cmdbuf[--psmouse->cmdcnt] = data;
- goto out;
- }
+ psmouse->state = new_state;
+ psmouse->pktcnt = psmouse->out_of_sync = 0;
+ psmouse->ps2dev.flags = 0;
+ psmouse->last = jiffies;
+}
- 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->last = jiffies;
- psmouse->packet[psmouse->pktcnt++] = data;
+/*
+ * 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.
+ */
- if (psmouse->packet[0] == PSMOUSE_RET_BAT) {
- if (psmouse->pktcnt == 1)
- goto out;
+static 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);
+}
- 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;
- }
- }
- }
+/*
+ * psmouse_handle_byte() processes one byte of the input data stream
+ * by calling corresponding protocol handler.
+ */
- rc = psmouse->protocol_handler(psmouse, regs);
+static int psmouse_handle_byte(struct psmouse *psmouse, struct pt_regs *regs)
+{
+ psmouse_ret_t rc = psmouse->protocol_handler(psmouse, regs);
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->serio);
+ if (psmouse->state == PSMOUSE_ACTIVATED) {
+ printk(KERN_WARNING "psmouse.c: %s at %s lost sync at byte %d\n",
+ psmouse->name, psmouse->phys, psmouse->pktcnt);
+ if (++psmouse->out_of_sync == psmouse->resetafter) {
+ __psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ printk(KERN_NOTICE "psmouse.c: issuing reconnect request\n");
+ serio_reconnect(psmouse->ps2dev.serio);
+ return -1;
+ }
}
+ psmouse->pktcnt = 0;
break;
case PSMOUSE_FULL_PACKET:
case PSMOUSE_GOOD_DATA:
break;
}
-out:
- return IRQ_HANDLED;
-}
-
-/*
- * psmouse_sendbyte() sends a byte to the mouse, and waits for acknowledge.
- * It doesn't handle retransmission, though it could - because when there would
- * be need for retransmissions, the mouse has to be replaced anyway.
- */
-
-static int psmouse_sendbyte(struct psmouse *psmouse, unsigned char byte)
-{
- int timeout = 10000; /* 100 msec */
- psmouse->ack = 0;
- psmouse->acking = 1;
-
- if (serio_write(psmouse->serio, byte)) {
- psmouse->acking = 0;
- return -1;
- }
-
- while (!psmouse->ack && timeout--) udelay(10);
-
- return -(psmouse->ack <= 0);
+ return 0;
}
/*
- * psmouse_command() sends a command and its parameters to the mouse,
- * then waits for the response and puts it in the param array.
+ * psmouse_interrupt() handles incoming characters, either passing them
+ * for normal processing or gathering them as command response.
*/
-int psmouse_command(struct psmouse *psmouse, unsigned char *param, int command)
+static irqreturn_t psmouse_interrupt(struct serio *serio,
+ unsigned char data, unsigned int flags, struct pt_regs *regs)
{
- int timeout = 500000; /* 500 msec */
- int send = (command >> 12) & 0xf;
- int receive = (command >> 8) & 0xf;
- int i;
+ struct psmouse *psmouse = serio_get_drvdata(serio);
- psmouse->cmdcnt = receive;
+ if (psmouse->state == PSMOUSE_IGNORE)
+ goto out;
- if (command == PSMOUSE_CMD_RESET_BAT)
- timeout = 4000000; /* 4 sec */
+ if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
+ 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" : "");
+ ps2_cmd_aborted(&psmouse->ps2dev);
+ goto out;
+ }
- /* initialize cmdbuf with preset values from param */
- if (receive)
- for (i = 0; i < receive; i++)
- psmouse->cmdbuf[(receive - 1) - i] = param[i];
+ if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_ACK))
+ if (ps2_handle_ack(&psmouse->ps2dev, data))
+ goto out;
- if (command & 0xff)
- if (psmouse_sendbyte(psmouse, command & 0xff))
- return (psmouse->cmdcnt = 0) - 1;
+ if (unlikely(psmouse->ps2dev.flags & PS2_FLAG_CMD))
+ if (ps2_handle_response(&psmouse->ps2dev, data))
+ goto out;
- for (i = 0; i < send; i++)
- if (psmouse_sendbyte(psmouse, param[i]))
- return (psmouse->cmdcnt = 0) - 1;
+ if (psmouse->state <= PSMOUSE_RESYNCING)
+ goto out;
- while (psmouse->cmdcnt && timeout--) {
+ if (psmouse->state == PSMOUSE_ACTIVATED &&
+ psmouse->pktcnt && time_after(jiffies, psmouse->last + HZ/2)) {
+ printk(KERN_INFO "psmouse.c: %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);
+ queue_work(kpsmoused_wq, &psmouse->resync_work);
+ goto out;
+ }
- if (psmouse->cmdcnt == 1 && command == PSMOUSE_CMD_RESET_BAT &&
- timeout > 100000) /* do not run in a endless loop */
- timeout = 100000; /* 1 sec */
+ psmouse->packet[psmouse->pktcnt++] = data;
+/*
+ * 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->cmdcnt == 1 && command == PSMOUSE_CMD_GETID &&
- psmouse->cmdbuf[1] != 0xab && psmouse->cmdbuf[1] != 0xac) {
- psmouse->cmdcnt = 0;
- break;
+ if (psmouse->packet[1] == PSMOUSE_RET_ID) {
+ __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, regs))
+ goto out;
- udelay(1);
+ psmouse->packet[psmouse->pktcnt++] = data;
}
- for (i = 0; i < receive; i++)
- param[i] = psmouse->cmdbuf[(receive - 1) - i];
+/*
+ * 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);
+ queue_work(kpsmoused_wq, &psmouse->resync_work);
+ goto out;
+ }
- if (psmouse->cmdcnt)
- return (psmouse->cmdcnt = 0) - 1;
+ psmouse->last = jiffies;
+ psmouse_handle_byte(psmouse, regs);
- return 0;
+ out:
+ return IRQ_HANDLED;
}
{
int i;
- if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11))
+ if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
return -1;
for (i = 6; i >= 0; i -= 2) {
unsigned char d = (command >> i) & 3;
- if (psmouse_command(psmouse, &d, PSMOUSE_CMD_SETRES))
+ if (ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES))
return -1;
}
{
unsigned char param[2];
- if (psmouse_command(psmouse, param, PSMOUSE_CMD_RESET_BAT))
+ if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_RESET_BAT))
return -1;
if (param[0] != PSMOUSE_RET_BAT && param[1] != PSMOUSE_RET_ID)
/*
* Genius NetMouse magic init.
*/
-static int genius_detect(struct psmouse *psmouse)
+static int genius_detect(struct psmouse *psmouse, int set_properties)
{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[4];
param[0] = 3;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
- psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11);
- psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11);
- psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11);
- psmouse_command(psmouse, param, PSMOUSE_CMD_GETINFO);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+ if (param[0] != 0x00 || param[1] != 0x33 || param[2] != 0x55)
+ return -1;
- return param[0] == 0x00 && param[1] == 0x33 && param[2] == 0x55;
+ if (set_properties) {
+ 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;
+ }
+
+ return 0;
}
/*
* IntelliMouse magic init.
*/
-static int intellimouse_detect(struct psmouse *psmouse)
+static int intellimouse_detect(struct psmouse *psmouse, int set_properties)
{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
param[0] = 200;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 100;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 80;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
- psmouse_command(psmouse, param, PSMOUSE_CMD_GETID);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ if (param[0] != 3)
+ return -1;
- return param[0] == 3;
+ if (set_properties) {
+ 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";
+ psmouse->pktsize = 4;
+ }
+
+ return 0;
}
/*
* Try IntelliMouse/Explorer magic init.
*/
-static int im_explorer_detect(struct psmouse *psmouse)
+static int im_explorer_detect(struct psmouse *psmouse, int set_properties)
{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
+ intellimouse_detect(psmouse, 0);
+
param[0] = 200;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 200;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
param[0] = 80;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRATE);
- psmouse_command(psmouse, param, PSMOUSE_CMD_GETID);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ 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);
+
+ if (!psmouse->vendor) psmouse->vendor = "Generic";
+ if (!psmouse->name) psmouse->name = "Explorer Mouse";
+ psmouse->pktsize = 4;
+ }
+
+ return 0;
+}
+
+/*
+ * Kensington ThinkingMouse / ExpertMouse magic init.
+ */
+static int thinking_detect(struct psmouse *psmouse, int set_properties)
+{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
+ unsigned char param[2];
+ unsigned char seq[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20, 0 };
+ 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);
+ ps2_command(ps2dev, param, PSMOUSE_CMD_GETID);
+
+ if (param[0] != 2)
+ return -1;
+
+ if (set_properties) {
+ set_bit(BTN_EXTRA, psmouse->dev->keybit);
+
+ psmouse->vendor = "Kensington";
+ psmouse->name = "ThinkingMouse";
+ }
+
+ return 0;
+}
+
+/*
+ * Bare PS/2 protocol "detection". Always succeeds.
+ */
+static int ps2bare_detect(struct psmouse *psmouse, int set_properties)
+{
+ if (set_properties) {
+ if (!psmouse->vendor) psmouse->vendor = "Generic";
+ if (!psmouse->name) psmouse->name = "Mouse";
+ }
- return param[0] == 4;
+ 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).
+ */
+
+ if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_THINKPS;
+
/*
* Try Synaptics TouchPad
*/
- if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse)) {
+ if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
synaptics_hardware = 1;
- if (set_properties) {
- psmouse->vendor = "Synaptics";
- psmouse->name = "TouchPad";
- }
-
if (max_proto > PSMOUSE_IMEX) {
if (!set_properties || synaptics_init(psmouse) == 0)
return PSMOUSE_SYNAPTICS;
synaptics_reset(psmouse);
}
- if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse)) {
-
- if (set_properties) {
- 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";
+/*
+ * Try ALPS TouchPad
+ */
+ if (max_proto > PSMOUSE_IMEX) {
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
+ if (alps_detect(psmouse, set_properties) == 0) {
+ if (!set_properties || alps_init(psmouse) == 0)
+ return PSMOUSE_ALPS;
+/*
+ * Init failed, try basic relative protocols
+ */
+ max_proto = PSMOUSE_IMEX;
}
+ }
+ if (max_proto > PSMOUSE_IMEX && genius_detect(psmouse, set_properties) == 0)
return PSMOUSE_GENPS;
- }
- if (max_proto > PSMOUSE_IMEX) {
- int type = ps2pp_init(psmouse, set_properties);
- if (type > PSMOUSE_PS2)
- return type;
- }
+ if (max_proto > PSMOUSE_IMEX && ps2pp_init(psmouse, set_properties) == 0)
+ return PSMOUSE_PS2PP;
- if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse)) {
+ if (max_proto > PSMOUSE_IMEX && trackpoint_detect(psmouse, set_properties) == 0)
+ return PSMOUSE_TRACKPOINT;
- if (set_properties) {
- set_bit(REL_WHEEL, psmouse->dev.relbit);
- set_bit(BTN_SIDE, psmouse->dev.keybit);
- set_bit(BTN_EXTRA, psmouse->dev.keybit);
- if (!psmouse->name)
- psmouse->name = "Explorer Mouse";
- }
+/*
+ * Reset to defaults in case the device got confused by extended
+ * protocol probes. Note that we do full reset becuase some mice
+ * put themselves to sleep when see PSMOUSE_RESET_DIS.
+ */
+ psmouse_reset(psmouse);
+ if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
return PSMOUSE_IMEX;
- }
-
- if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse)) {
-
- if (set_properties) {
- set_bit(REL_WHEEL, psmouse->dev.relbit);
- if (!psmouse->name)
- psmouse->name = "Wheel Mouse";
- }
+ if (max_proto >= PSMOUSE_IMPS && 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);
+
if (synaptics_hardware) {
/*
* We detected Synaptics hardware but it did not respond to IMPS/2 probes.
* extensions.
*/
psmouse_reset(psmouse);
- psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS);
}
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_TRACKPOINT,
+ .name = "TPPS/2",
+ .alias = "trackpoint",
+ .detect = trackpoint_detect,
+ },
+ {
+ .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 int psmouse_probe(struct psmouse *psmouse)
{
+ struct ps2dev *ps2dev = &psmouse->ps2dev;
unsigned char param[2];
/*
* First, we check if it's a mouse. It should send 0x00 or 0x03
* in case of an IntelliMouse in 4-byte mode or 0x04 for IM Explorer.
+ * Sunrex K8561 IR Keyboard/Mouse reports 0xff on second and subsequent
+ * ID queries, probably due to a firmware bug.
*/
param[0] = 0xa5;
-
- if (psmouse_command(psmouse, param, PSMOUSE_CMD_GETID))
+ if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
return -1;
- if (param[0] != 0x00 && param[0] != 0x03 && param[0] != 0x04)
+ if (param[0] != 0x00 && param[0] != 0x03 &&
+ param[0] != 0x04 && param[0] != 0xff)
return -1;
/*
* Then we reset and disable the mouse so that it doesn't generate events.
*/
- if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_RESET_DIS))
- printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", psmouse->serio->phys);
+ if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_DIS))
+ printk(KERN_WARNING "psmouse.c: Failed to reset mouse on %s\n", ps2dev->serio->phys);
return 0;
}
* Here we set the mouse resolution.
*/
-static void psmouse_set_resolution(struct psmouse *psmouse)
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
{
- unsigned char param[1];
-
- if (psmouse->type == PSMOUSE_PS2PP && psmouse_resolution > 400) {
- ps2pp_set_800dpi(psmouse);
- return;
- }
+ unsigned char params[] = { 0, 1, 2, 2, 3 };
- if (!psmouse_resolution || psmouse_resolution >= 200)
- param[0] = 3;
- else if (psmouse_resolution >= 100)
- param[0] = 2;
- else if (psmouse_resolution >= 50)
- param[0] = 1;
- else if (psmouse_resolution)
- param[0] = 0;
+ if (resolution == 0 || resolution > 200)
+ resolution = 200;
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETRES);
+ ps2_command(&psmouse->ps2dev, ¶ms[resolution / 50], PSMOUSE_CMD_SETRES);
+ psmouse->resolution = 25 << params[resolution / 50];
}
/*
* Here we set the mouse report rate.
*/
-static void psmouse_set_rate(struct psmouse *psmouse)
+static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
{
unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
int i = 0;
- while (rates[i] > psmouse_rate) i++;
- psmouse_command(psmouse, rates + i, PSMOUSE_CMD_SETRATE);
+ while (rates[i] > rate) i++;
+ ps2_command(&psmouse->ps2dev, &rates[i], PSMOUSE_CMD_SETRATE);
+ psmouse->rate = rates[i];
}
/*
static void psmouse_initialize(struct psmouse *psmouse)
{
- unsigned char param[2];
+/*
+ * We set the mouse into streaming mode.
+ */
+
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM);
/*
* We set the mouse report rate, resolution and scaling.
*/
if (psmouse_max_proto != PSMOUSE_PS2) {
- psmouse_set_rate(psmouse);
- psmouse_set_resolution(psmouse);
- psmouse_command(psmouse, NULL, PSMOUSE_CMD_SETSCALE11);
+ psmouse->set_rate(psmouse, psmouse->rate);
+ psmouse->set_resolution(psmouse, psmouse->resolution);
+ ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11);
}
+}
/*
- * We set the mouse into streaming mode.
+ * psmouse_activate() enables the mouse so that we get motion reports from it.
+ */
+
+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);
+
+ psmouse_set_state(psmouse, PSMOUSE_ACTIVATED);
+}
+
+
+/*
+ * psmouse_deactivate() puts the mouse into poll mode so that we don't get motion
+ * reports from it unless we explicitely request it.
*/
- psmouse_command(psmouse, param, PSMOUSE_CMD_SETSTREAM);
+static void psmouse_deactivate(struct psmouse *psmouse)
+{
+ 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_set_state(psmouse, PSMOUSE_CMD_MODE);
}
/*
- * psmouse_activate() enables the mouse so that we get motion reports from it.
+ * psmouse_poll() - default poll hanlder. Everyone except for ALPS uses it.
*/
-static void psmouse_activate(struct psmouse *psmouse)
+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.
+ */
+
+static void psmouse_resync(void *p)
{
- if (psmouse_command(psmouse, NULL, PSMOUSE_CMD_ENABLE))
- printk(KERN_WARNING "psmouse.c: Failed to enable mouse on %s\n", psmouse->serio->phys);
+ struct psmouse *psmouse = p, *parent = NULL;
+ struct serio *serio = psmouse->ps2dev.serio;
+ psmouse_ret_t rc = PSMOUSE_GOOD_DATA;
+ int failed = 0, enabled = 0;
+ 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);
+ }
+
+/*
+ * 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++;
+
+ if (ps2_sendbyte(&psmouse->ps2dev, PSMOUSE_CMD_DISABLE, 20)) {
+ if (psmouse->num_resyncs < 3 || psmouse->acks_disable_command)
+ failed = 1;
+ } else
+ psmouse->acks_disable_command = 1;
+
+/*
+ * 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 = 1;
+ else {
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+ for (i = 0; i < psmouse->pktsize; i++) {
+ psmouse->pktcnt++;
+ rc = psmouse->protocol_handler(psmouse, NULL);
+ if (rc != PSMOUSE_GOOD_DATA)
+ break;
+ }
+ if (rc != PSMOUSE_FULL_PACKET)
+ failed = 1;
+ 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 = 1;
+ break;
+ }
+ msleep(200);
+ }
+
+ if (!enabled) {
+ printk(KERN_WARNING "psmouse.c: failed to re-enable mouse on %s\n",
+ psmouse->ps2dev.serio->phys);
+ failed = 1;
+ }
- psmouse->state = PSMOUSE_ACTIVATED;
+ if (failed) {
+ psmouse_set_state(psmouse, PSMOUSE_IGNORE);
+ printk(KERN_INFO "psmouse.c: 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);
}
/*
static void psmouse_cleanup(struct serio *serio)
{
- struct psmouse *psmouse = serio->private;
+ struct psmouse *psmouse = serio_get_drvdata(serio);
psmouse_reset(psmouse);
}
static void psmouse_disconnect(struct serio *serio)
{
- struct psmouse *psmouse = serio->private;
+ struct psmouse *psmouse, *parent = NULL;
+
+ psmouse = serio_get_drvdata(serio);
+
+ sysfs_remove_group(&serio->dev.kobj, &psmouse_attribute_group);
+
+ mutex_lock(&psmouse_mutex);
+
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
- psmouse->state = 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 (psmouse->ptport) {
- if (psmouse->ptport->deactivate)
- psmouse->ptport->deactivate(psmouse);
- __serio_unregister_port(&psmouse->ptport->serio); /* we have serio_sem */
- kfree(psmouse->ptport);
- psmouse->ptport = NULL;
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
}
if (psmouse->disconnect)
psmouse->disconnect(psmouse);
- psmouse->state = PSMOUSE_IGNORE;
+ 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);
+ input_unregister_device(psmouse->dev);
kfree(psmouse);
+
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+}
+
+static int psmouse_switch_protocol(struct psmouse *psmouse, struct psmouse_protocol *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->poll = psmouse_poll;
+ 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);
+
+ /*
+ * 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;
+
+ sprintf(psmouse->devname, "%s %s %s",
+ psmouse_protocol_by_type(psmouse->type)->name, psmouse->vendor, psmouse->name);
+
+ 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;
}
/*
* psmouse_connect() is a callback from the serio module when
* an unhandled serio port is found.
*/
-static void psmouse_connect(struct serio *serio, struct serio_dev *dev)
+static int psmouse_connect(struct serio *serio, struct serio_driver *drv)
{
- struct psmouse *psmouse;
+ struct psmouse *psmouse, *parent = NULL;
+ struct input_dev *input_dev;
+ int retval = -ENOMEM;
- if ((serio->type & SERIO_TYPE) != SERIO_8042 &&
- (serio->type & SERIO_TYPE) != SERIO_PS_PSTHRU)
- return;
+ mutex_lock(&psmouse_mutex);
- if (!(psmouse = kmalloc(sizeof(struct psmouse), GFP_KERNEL)))
- return;
+ /*
+ * If this is a pass-through port deactivate parent so the device
+ * connected to this port can be successfully identified
+ */
+ if (serio->parent && serio->id.type == SERIO_PS_PSTHRU) {
+ parent = serio_get_drvdata(serio->parent);
+ psmouse_deactivate(parent);
+ }
- memset(psmouse, 0, sizeof(struct psmouse));
+ psmouse = kzalloc(sizeof(struct psmouse), GFP_KERNEL);
+ input_dev = input_allocate_device();
+ if (!psmouse || !input_dev)
+ goto out;
- init_input_dev(&psmouse->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->state = PSMOUSE_CMD_MODE;
- psmouse->serio = serio;
- psmouse->dev.private = psmouse;
+ ps2_init(&psmouse->ps2dev, serio);
+ INIT_WORK(&psmouse->resync_work, psmouse_resync, psmouse);
+ psmouse->dev = input_dev;
+ sprintf(psmouse->phys, "%s/input0", serio->phys);
- serio->private = psmouse;
- if (serio_open(serio, dev)) {
- kfree(psmouse);
- serio->private = NULL;
- return;
- }
+ psmouse_set_state(psmouse, PSMOUSE_INITIALIZING);
+
+ serio_set_drvdata(serio, psmouse);
+
+ retval = serio_open(serio, drv);
+ if (retval)
+ goto out;
if (psmouse_probe(psmouse) < 0) {
serio_close(serio);
- kfree(psmouse);
- serio->private = NULL;
- return;
+ retval = -ENODEV;
+ goto out;
}
- psmouse->type = psmouse_extensions(psmouse, psmouse_max_proto, 1);
- if (!psmouse->vendor)
- psmouse->vendor = "Generic";
- if (!psmouse->name)
- psmouse->name = "Mouse";
- if (!psmouse->protocol_handler)
- psmouse->protocol_handler = psmouse_process_byte;
+ psmouse->rate = psmouse_rate;
+ psmouse->resolution = psmouse_resolution;
+ psmouse->resetafter = psmouse_resetafter;
+ psmouse->resync_time = parent ? 0 : psmouse_resync_time;
+ psmouse->smartscroll = psmouse_smartscroll;
- sprintf(psmouse->devname, "%s %s %s",
- psmouse_protocols[psmouse->type], psmouse->vendor, psmouse->name);
- sprintf(psmouse->phys, "%s/input0",
- serio->phys);
+ psmouse_switch_protocol(psmouse, NULL);
- 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_set_state(psmouse, PSMOUSE_CMD_MODE);
+ psmouse_initialize(psmouse);
- input_register_device(&psmouse->dev);
+ 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);
- psmouse_initialize(psmouse);
+ sysfs_create_group(&serio->dev.kobj, &psmouse_attribute_group);
- if (psmouse->ptport) {
- printk(KERN_INFO "serio: %s port at %s\n", psmouse->ptport->serio.name, psmouse->phys);
- __serio_register_port(&psmouse->ptport->serio); /* we have serio_sem */
- if (psmouse->ptport->activate)
- psmouse->ptport->activate(psmouse);
+ psmouse_activate(psmouse);
+
+ retval = 0;
+
+out:
+ if (retval) {
+ serio_set_drvdata(serio, NULL);
+ input_free_device(input_dev);
+ kfree(psmouse);
}
- psmouse_activate(psmouse);
+ /* If this is a pass-through port the parent needs to be re-activated */
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+ return retval;
}
static int psmouse_reconnect(struct serio *serio)
{
- struct psmouse *psmouse = serio->private;
- struct serio_dev *dev = serio->dev;
+ struct psmouse *psmouse = serio_get_drvdata(serio);
+ struct psmouse *parent = NULL;
+ struct serio_driver *drv = serio->drv;
+ int rc = -1;
- if (!dev || !psmouse) {
+ if (!drv || !psmouse) {
printk(KERN_DEBUG "psmouse: reconnect request, but serio is disconnected, ignoring...\n");
return -1;
}
- psmouse->state = PSMOUSE_CMD_MODE;
- psmouse->acking = psmouse->cmdcnt = psmouse->pktcnt = psmouse->out_of_sync = 0;
+ 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);
+
if (psmouse->reconnect) {
- if (psmouse->reconnect(psmouse))
- return -1;
+ if (psmouse->reconnect(psmouse))
+ goto out;
} else if (psmouse_probe(psmouse) < 0 ||
psmouse->type != psmouse_extensions(psmouse, psmouse_max_proto, 0))
- return -1;
+ goto out;
/* ok, the device type (and capabilities) match the old one,
* we can continue using it, complete intialization
*/
+ psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
+
psmouse_initialize(psmouse);
- if (psmouse->ptport) {
- if (psmouse_reconnect(&psmouse->ptport->serio)) {
- __serio_unregister_port(&psmouse->ptport->serio);
- __serio_register_port(&psmouse->ptport->serio);
- if (psmouse->ptport->activate)
- psmouse->ptport->activate(psmouse);
- }
- }
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
psmouse_activate(psmouse);
- return 0;
+ rc = 0;
+
+out:
+ /* If this is a pass-through port the parent waits to be activated */
+ if (parent)
+ psmouse_activate(parent);
+
+ mutex_unlock(&psmouse_mutex);
+ return rc;
}
+static struct serio_device_id psmouse_serio_ids[] = {
+ {
+ .type = SERIO_8042,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ {
+ .type = SERIO_PS_PSTHRU,
+ .proto = SERIO_ANY,
+ .id = SERIO_ANY,
+ .extra = SERIO_ANY,
+ },
+ { 0 }
+};
-static struct serio_dev psmouse_dev = {
- .interrupt = psmouse_interrupt,
- .connect = psmouse_connect,
- .reconnect = psmouse_reconnect,
- .disconnect = psmouse_disconnect,
- .cleanup = psmouse_cleanup,
+MODULE_DEVICE_TABLE(serio, psmouse_serio_ids);
+
+static struct serio_driver psmouse_drv = {
+ .driver = {
+ .name = "psmouse",
+ },
+ .description = DRIVER_DESC,
+ .id_table = psmouse_serio_ids,
+ .interrupt = psmouse_interrupt,
+ .connect = psmouse_connect,
+ .reconnect = psmouse_reconnect,
+ .disconnect = psmouse_disconnect,
+ .cleanup = psmouse_cleanup,
};
-static inline void psmouse_parse_proto(void)
+ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ 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;
+}
+
+ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct serio *serio = to_serio_port(dev);
+ struct psmouse_attribute *attr = to_psmouse_attr(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 = mutex_lock_interruptible(&psmouse_mutex);
+ if (retval)
+ goto out_unpin;
+
+ psmouse = serio_get_drvdata(serio);
+
+ 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);
+ }
+
+ psmouse_deactivate(psmouse);
+
+ retval = attr->set(psmouse, attr->data, buf, count);
+
+ if (retval != -ENODEV)
+ psmouse_activate(psmouse);
+
+ if (parent)
+ psmouse_activate(parent);
+
+ out_unlock:
+ mutex_unlock(&psmouse_mutex);
+ out_unpin:
+ serio_unpin_driver(serio);
+ 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);
+
+ return sprintf(buf, "%lu\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;
+
+ value = simple_strtoul(buf, &rest, 10);
+ if (*rest)
+ return -EINVAL;
+
+ *field = value;
+
+ return count;
+}
+
+static ssize_t psmouse_attr_show_protocol(struct psmouse *psmouse, void *data, char *buf)
+{
+ return sprintf(buf, "%s\n", psmouse_protocol_by_type(psmouse->type)->name);
+}
+
+static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, const char *buf, size_t count)
{
- if (psmouse_proto) {
- if (!strcmp(psmouse_proto, "bare"))
- psmouse_max_proto = PSMOUSE_PS2;
- else if (!strcmp(psmouse_proto, "imps"))
- psmouse_max_proto = PSMOUSE_IMPS;
- else if (!strcmp(psmouse_proto, "exps"))
- psmouse_max_proto = PSMOUSE_IMEX;
- else
- printk(KERN_ERR "psmouse: unknown protocol type '%s'\n", psmouse_proto);
+ struct serio *serio = psmouse->ps2dev.serio;
+ struct psmouse *parent = NULL;
+ struct input_dev *new_dev;
+ struct psmouse_protocol *proto;
+ int retry = 0;
+
+ if (!(proto = psmouse_protocol_by_name(buf, count)))
+ return -EINVAL;
+
+ 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;
+ }
+
+ mutex_unlock(&psmouse_mutex);
+ serio_unpin_driver(serio);
+ serio_unregister_child_port(serio);
+ serio_pin_driver_uninterruptible(serio);
+ mutex_lock(&psmouse_mutex);
+
+ if (serio->drv != &psmouse_drv) {
+ input_free_device(new_dev);
+ return -ENODEV;
+ }
+
+ 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) {
+ 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->dev = new_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);
+
+ if (parent && parent->pt_activate)
+ parent->pt_activate(parent);
+
+ return count;
+}
+
+static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
+{
+ unsigned long value;
+ char *rest;
+
+ value = simple_strtoul(buf, &rest, 10);
+ if (*rest)
+ return -EINVAL;
+
+ 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;
+
+ value = simple_strtoul(buf, &rest, 10);
+ if (*rest)
+ return -EINVAL;
+
+ psmouse->set_resolution(psmouse, value);
+ return count;
+}
+
+
+static int psmouse_set_maxproto(const char *val, struct kernel_param *kp)
+{
+ struct psmouse_protocol *proto;
+
+ if (!val)
+ return -EINVAL;
+
+ proto = psmouse_protocol_by_name(val, strlen(val));
+
+ if (!proto || !proto->maxproto)
+ return -EINVAL;
+
+ *((unsigned int *)kp->arg) = proto->type;
+
+ return 0;
}
-int __init psmouse_init(void)
+static int psmouse_get_maxproto(char *buffer, struct kernel_param *kp)
{
- psmouse_parse_proto();
- serio_register_device(&psmouse_dev);
+ int type = *((unsigned int *)kp->arg);
+
+ return sprintf(buffer, "%s\n", psmouse_protocol_by_type(type)->name);
+}
+
+static int __init psmouse_init(void)
+{
+ kpsmoused_wq = create_singlethread_workqueue("kpsmoused");
+ if (!kpsmoused_wq) {
+ printk(KERN_ERR "psmouse: failed to create kpsmoused workqueue\n");
+ return -ENOMEM;
+ }
+
+ serio_register_driver(&psmouse_drv);
+
return 0;
}
-void __exit psmouse_exit(void)
+static void __exit psmouse_exit(void)
{
- serio_unregister_device(&psmouse_dev);
+ serio_unregister_driver(&psmouse_drv);
+ destroy_workqueue(kpsmoused_wq);
}
module_init(psmouse_init);
git://git.onelab.eu / linux-2.6.git / blobdiff