X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finput%2Fmouse%2Fsynaptics.c;h=d349c4a5e3e84488a4e812e33e6e547aac4d97e7;hb=f9d1c6ca2bb1bbfde4a95d9e55ab3b0126825295;hp=f0f9413d762c9a36b5e9c6f4db3afbb4d8a82eeb;hpb=b0138a6cb7923a997d278b47c176778534d1095b;p=linux-2.6

diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index f0f9413d76..d349c4a5e3 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -40,33 +40,70 @@
 #define YMIN_NOMINAL 1408
 #define YMAX_NOMINAL 4448
 
+
 /*****************************************************************************
- *	Synaptics communications functions
+ *	Stuff we need even when we do not want native Synaptics support
  ****************************************************************************/
 
 /*
- * Send a command to the synpatics touchpad by special commands
+ * Set the synaptics touchpad mode byte by special commands
  */
-static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
+static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
 {
-	if (psmouse_sliced_command(psmouse, c))
+	unsigned char param[1];
+
+	if (psmouse_sliced_command(psmouse, mode))
 		return -1;
-	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
+	param[0] = SYN_PS_SET_MODE2;
+	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
 		return -1;
 	return 0;
 }
 
+int synaptics_detect(struct psmouse *psmouse, int set_properties)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	unsigned char param[4];
+
+	param[0] = 0;
+
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
+	ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
+
+	if (param[1] != 0x47)
+		return -ENODEV;
+
+	if (set_properties) {
+		psmouse->vendor = "Synaptics";
+		psmouse->name = "TouchPad";
+	}
+
+	return 0;
+}
+
+void synaptics_reset(struct psmouse *psmouse)
+{
+	/* reset touchpad back to relative mode, gestures enabled */
+	synaptics_mode_cmd(psmouse, 0);
+}
+
+#ifdef CONFIG_MOUSE_PS2_SYNAPTICS
+
+/*****************************************************************************
+ *	Synaptics communications functions
+ ****************************************************************************/
+
 /*
- * Set the synaptics touchpad mode byte by special commands
+ * Send a command to the synpatics touchpad by special commands
  */
-static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
+static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
 {
-	unsigned char param[1];
-
-	if (psmouse_sliced_command(psmouse, mode))
+	if (psmouse_sliced_command(psmouse, c))
 		return -1;
-	param[0] = SYN_PS_SET_MODE2;
-	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
+	if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
 		return -1;
 	return 0;
 }
@@ -148,7 +185,7 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
 	int retries = 0;
 
 	while ((retries++ < 3) && psmouse_reset(psmouse))
-		printk(KERN_ERR "synaptics reset failed\n");
+		/* empty */;
 
 	if (synaptics_identify(psmouse))
 		return -1;
@@ -529,12 +566,6 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	clear_bit(REL_Y, dev->relbit);
 }
 
-void synaptics_reset(struct psmouse *psmouse)
-{
-	/* reset touchpad back to relative mode, gestures enabled */
-	synaptics_mode_cmd(psmouse, 0);
-}
-
 static void synaptics_disconnect(struct psmouse *psmouse)
 {
 	synaptics_reset(psmouse);
@@ -569,33 +600,9 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 	return 0;
 }
 
-int synaptics_detect(struct psmouse *psmouse, int set_properties)
-{
-	struct ps2dev *ps2dev = &psmouse->ps2dev;
-	unsigned char param[4];
-
-	param[0] = 0;
-
-	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
-	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
-	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
-	ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
-	ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
-
-	if (param[1] != 0x47)
-		return -1;
-
-	if (set_properties) {
-		psmouse->vendor = "Synaptics";
-		psmouse->name = "TouchPad";
-	}
-
-	return 0;
-}
-
 #if defined(__i386__)
 #include <linux/dmi.h>
-static struct dmi_system_id toshiba_dmi_table[] = {
+static const struct dmi_system_id toshiba_dmi_table[] = {
 	{
 		.ident = "Toshiba Satellite",
 		.matches = {
@@ -648,6 +655,16 @@ int synaptics_init(struct psmouse *psmouse)
 
 	set_input_params(psmouse->dev, priv);
 
+	/*
+	 * Encode touchpad model so that it can be used to set
+	 * input device->id.version and be visible to userspace.
+	 * Because version is __u16 we have to drop something.
+	 * Hardware info bits seem to be good candidates as they
+	 * are documented to be for Synaptics corp. internal use.
+	 */
+	psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
+			  (priv->model_id & 0x000000ff);
+
 	psmouse->protocol_handler = synaptics_process_byte;
 	psmouse->set_rate = synaptics_set_rate;
 	psmouse->disconnect = synaptics_disconnect;
@@ -680,4 +697,12 @@ int synaptics_init(struct psmouse *psmouse)
 	return -1;
 }
 
+#else /* CONFIG_MOUSE_PS2_SYNAPTICS */
+
+int synaptics_init(struct psmouse *psmouse)
+{
+	return -ENOSYS;
+}
+
+#endif /* CONFIG_MOUSE_PS2_SYNAPTICS */