5 files changed, 320 insertions, 7 deletions

diff --git a/include/linux/input.h b/include/linux/input.h
index cae2c35d1206..28a094fcfe20 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1025,10 +1025,6 @@ struct ff_effect {
  * @node: used to place the device onto input_dev_list
  */
 struct input_dev {
-        /* private: */
-        void *private;  /* do not use */
-        /* public: */
-
         const char *name;
         const char *phys;
         const char *uniq;
@@ -1238,12 +1234,12 @@ static inline void input_put_device(struct input_dev *dev)
 
 static inline void *input_get_drvdata(struct input_dev *dev)
 {
-        return dev->private;
+        return dev_get_drvdata(&dev->dev);
 }
 
 static inline void input_set_drvdata(struct input_dev *dev, void *data)
 {
-        dev->private = data;
+        dev_set_drvdata(&dev->dev, data);
 }
 
 int __must_check input_register_device(struct input_dev *);
diff --git a/include/linux/keyboard.h b/include/linux/keyboard.h
index 65c2d70853e9..a3c984d780f0 100644
--- a/include/linux/keyboard.h
+++ b/include/linux/keyboard.h
@@ -33,6 +33,7 @@ struct keyboard_notifier_param {
         struct vc_data *vc;     /* VC on which the keyboard press was done */
         int down;               /* Pressure of the key? */
         int shift;              /* Current shift mask */
+        int ledstate;           /* Current led state */
         unsigned int value;     /* keycode, unicode value or keysym */
 };
 
diff --git a/include/linux/serio.h b/include/linux/serio.h
index 9f3825014674..95674d97dabd 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -211,5 +211,6 @@ static inline void serio_unpin_driver(struct serio *serio)
 #define SERIO_TOUCHWIN  0x33
 #define SERIO_TAOSEVM   0x34
 #define SERIO_FUJITSU   0x35
+#define SERIO_ZHENHUA   0x36
 
 #endif
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 334d31411629..daf744017a31 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -14,7 +14,8 @@ enum ads7846_filter {
 struct ads7846_platform_data {
         u16     model;                  /* 7843, 7845, 7846. */
         u16     vref_delay_usecs;       /* 0 for external vref; etc */
-        int     keep_vref_on:1;         /* set to keep vref on for differential
+        u16     vref_mv;                /* external vref value, milliVolts */
+        bool    keep_vref_on;           /* set to keep vref on for differential
                                          * measurements as well */
 
         /* Settling time of the analog signals; a function of Vcc and the
diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
new file mode 100644
index 000000000000..4d13732e9cf0
--- /dev/null
+++ b/include/linux/wm97xx.h
@@ -0,0 +1,314 @@
+
+/*
+ * Register bits and API for Wolfson WM97xx series of codecs
+ */
+
+#ifndef _LINUX_WM97XX_H
+#define _LINUX_WM97XX_H
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/ac97_codec.h>
+#include <sound/initval.h>
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/input.h>        /* Input device layer */
+#include <linux/platform_device.h>
+
+/*
+ * WM97xx AC97 Touchscreen registers
+ */
+#define AC97_WM97XX_DIGITISER1          0x76
+#define AC97_WM97XX_DIGITISER2          0x78
+#define AC97_WM97XX_DIGITISER_RD        0x7a
+#define AC97_WM9713_DIG1                0x74
+#define AC97_WM9713_DIG2                AC97_WM97XX_DIGITISER1
+#define AC97_WM9713_DIG3                AC97_WM97XX_DIGITISER2
+
+/*
+ * WM97xx register bits
+ */
+#define WM97XX_POLL             0x8000  /* initiate a polling measurement */
+#define WM97XX_ADCSEL_X         0x1000  /* x coord measurement */
+#define WM97XX_ADCSEL_Y         0x2000  /* y coord measurement */
+#define WM97XX_ADCSEL_PRES      0x3000  /* pressure measurement */
+#define WM97XX_ADCSEL_MASK      0x7000
+#define WM97XX_COO              0x0800  /* enable coordinate mode */
+#define WM97XX_CTC              0x0400  /* enable continuous mode */
+#define WM97XX_CM_RATE_93       0x0000  /* 93.75Hz continuous rate */
+#define WM97XX_CM_RATE_187      0x0100  /* 187.5Hz continuous rate */
+#define WM97XX_CM_RATE_375      0x0200  /* 375Hz continuous rate */
+#define WM97XX_CM_RATE_750      0x0300  /* 750Hz continuous rate */
+#define WM97XX_CM_RATE_8K       0x00f0  /* 8kHz continuous rate */
+#define WM97XX_CM_RATE_12K      0x01f0  /* 12kHz continuous rate */
+#define WM97XX_CM_RATE_24K      0x02f0  /* 24kHz continuous rate */
+#define WM97XX_CM_RATE_48K      0x03f0  /* 48kHz continuous rate */
+#define WM97XX_CM_RATE_MASK     0x03f0
+#define WM97XX_RATE(i)          (((i & 3) << 8) | ((i & 4) ? 0xf0 : 0))
+#define WM97XX_DELAY(i)         ((i << 4) & 0x00f0)     /* sample delay times */
+#define WM97XX_DELAY_MASK       0x00f0
+#define WM97XX_SLEN             0x0008  /* slot read back enable */
+#define WM97XX_SLT(i)           ((i - 5) & 0x7) /* panel slot (5-11) */
+#define WM97XX_SLT_MASK         0x0007
+#define WM97XX_PRP_DETW         0x4000  /* detect on, digitise off, wake */
+#define WM97XX_PRP_DET          0x8000  /* detect on, digitise off, no wake */
+#define WM97XX_PRP_DET_DIG      0xc000  /* setect on, digitise on */
+#define WM97XX_RPR              0x2000  /* wake up on pen down */
+#define WM97XX_PEN_DOWN         0x8000  /* pen is down */
+#define WM97XX_ADCSRC_MASK      0x7000  /* ADC source mask */
+
+#define WM97XX_AUX_ID1          0x8001
+#define WM97XX_AUX_ID2          0x8002
+#define WM97XX_AUX_ID3          0x8003
+#define WM97XX_AUX_ID4          0x8004
+
+
+/* WM9712 Bits */
+#define WM9712_45W              0x1000  /* set for 5-wire touchscreen */
+#define WM9712_PDEN             0x0800  /* measure only when pen down */
+#define WM9712_WAIT             0x0200  /* wait until adc is read before next sample */
+#define WM9712_PIL              0x0100  /* current used for pressure measurement. set 400uA else 200uA */
+#define WM9712_MASK_HI          0x0040  /* hi on mask pin (47) stops conversions */
+#define WM9712_MASK_EDGE        0x0080  /* rising/falling edge on pin delays sample */
+#define WM9712_MASK_SYNC        0x00c0  /* rising/falling edge on mask initiates sample */
+#define WM9712_RPU(i)           (i&0x3f)        /* internal pull up on pen detect (64k / rpu) */
+#define WM9712_PD(i)            (0x1 << i)      /* power management */
+
+/* WM9712 Registers */
+#define AC97_WM9712_POWER       0x24
+#define AC97_WM9712_REV         0x58
+
+/* WM9705 Bits */
+#define WM9705_PDEN             0x1000  /* measure only when pen is down */
+#define WM9705_PINV             0x0800  /* inverts sense of pen down output */
+#define WM9705_BSEN             0x0400  /* BUSY flag enable, pin47 is 1 when busy */
+#define WM9705_BINV             0x0200  /* invert BUSY (pin47) output */
+#define WM9705_WAIT             0x0100  /* wait until adc is read before next sample */
+#define WM9705_PIL              0x0080  /* current used for pressure measurement. set 400uA else 200uA */
+#define WM9705_PHIZ             0x0040  /* set PHONE and PCBEEP inputs to high impedance */
+#define WM9705_MASK_HI          0x0010  /* hi on mask stops conversions */
+#define WM9705_MASK_EDGE        0x0020  /* rising/falling edge on pin delays sample */
+#define WM9705_MASK_SYNC        0x0030  /* rising/falling edge on mask initiates sample */
+#define WM9705_PDD(i)           (i & 0x000f)    /* pen detect comparator threshold */
+
+
+/* WM9713 Bits */
+#define WM9713_PDPOL            0x0400  /* Pen down polarity */
+#define WM9713_POLL             0x0200  /* initiate a polling measurement */
+#define WM9713_CTC              0x0100  /* enable continuous mode */
+#define WM9713_ADCSEL_X         0x0002  /* X measurement */
+#define WM9713_ADCSEL_Y         0x0004  /* Y measurement */
+#define WM9713_ADCSEL_PRES      0x0008  /* Pressure measurement */
+#define WM9713_COO              0x0001  /* enable coordinate mode */
+#define WM9713_PDEN             0x0800  /* measure only when pen down */
+#define WM9713_ADCSEL_MASK      0x00fe  /* ADC selection mask */
+#define WM9713_WAIT             0x0200  /* coordinate wait */
+
+/* AUX ADC ID's */
+#define TS_COMP1                0x0
+#define TS_COMP2                0x1
+#define TS_BMON                 0x2
+#define TS_WIPER                0x3
+
+/* ID numbers */
+#define WM97XX_ID1              0x574d
+#define WM9712_ID2              0x4c12
+#define WM9705_ID2              0x4c05
+#define WM9713_ID2              0x4c13
+
+/* Codec GPIO's */
+#define WM97XX_MAX_GPIO         16
+#define WM97XX_GPIO_1           (1 << 1)
+#define WM97XX_GPIO_2           (1 << 2)
+#define WM97XX_GPIO_3           (1 << 3)
+#define WM97XX_GPIO_4           (1 << 4)
+#define WM97XX_GPIO_5           (1 << 5)
+#define WM97XX_GPIO_6           (1 << 6)
+#define WM97XX_GPIO_7           (1 << 7)
+#define WM97XX_GPIO_8           (1 << 8)
+#define WM97XX_GPIO_9           (1 << 9)
+#define WM97XX_GPIO_10          (1 << 10)
+#define WM97XX_GPIO_11          (1 << 11)
+#define WM97XX_GPIO_12          (1 << 12)
+#define WM97XX_GPIO_13          (1 << 13)
+#define WM97XX_GPIO_14          (1 << 14)
+#define WM97XX_GPIO_15          (1 << 15)
+
+
+#define AC97_LINK_FRAME         21      /* time in uS for AC97 link frame */
+
+
+/*---------------- Return codes from sample reading functions ---------------*/
+
+/* More data is available; call the sample gathering function again */
+#define RC_AGAIN                        0x00000001
+/* The returned sample is valid */
+#define RC_VALID                        0x00000002
+/* The pen is up (the first RC_VALID without RC_PENUP means pen is down) */
+#define RC_PENUP                        0x00000004
+/* The pen is down (RC_VALID implies RC_PENDOWN, but sometimes it is helpful
+   to tell the handler that the pen is down but we don't know yet his coords,
+   so the handler should not sleep or wait for pendown irq) */
+#define RC_PENDOWN                      0x00000008
+
+/*
+ * The wm97xx driver provides a private API for writing platform-specific
+ * drivers.
+ */
+
+/* The structure used to return arch specific sampled data into */
+struct wm97xx_data {
+    int x;
+    int y;
+    int p;
+};
+
+/*
+ * Codec GPIO status
+ */
+enum wm97xx_gpio_status {
+    WM97XX_GPIO_HIGH,
+    WM97XX_GPIO_LOW
+};
+
+/*
+ * Codec GPIO direction
+ */
+enum wm97xx_gpio_dir {
+    WM97XX_GPIO_IN,
+    WM97XX_GPIO_OUT
+};
+
+/*
+ * Codec GPIO polarity
+ */
+enum wm97xx_gpio_pol {
+    WM97XX_GPIO_POL_HIGH,
+    WM97XX_GPIO_POL_LOW
+};
+
+/*
+ * Codec GPIO sticky
+ */
+enum wm97xx_gpio_sticky {
+    WM97XX_GPIO_STICKY,
+    WM97XX_GPIO_NOTSTICKY
+};
+
+/*
+ * Codec GPIO wake
+ */
+enum wm97xx_gpio_wake {
+    WM97XX_GPIO_WAKE,
+    WM97XX_GPIO_NOWAKE
+};
+
+/*
+ * Digitiser ioctl commands
+ */
+#define WM97XX_DIG_START        0x1
+#define WM97XX_DIG_STOP         0x2
+#define WM97XX_PHY_INIT         0x3
+#define WM97XX_AUX_PREPARE      0x4
+#define WM97XX_DIG_RESTORE      0x5
+
+struct wm97xx;
+
+extern struct wm97xx_codec_drv wm9705_codec;
+extern struct wm97xx_codec_drv wm9712_codec;
+extern struct wm97xx_codec_drv wm9713_codec;
+
+/*
+ * Codec driver interface - allows mapping to WM9705/12/13 and newer codecs
+ */
+struct wm97xx_codec_drv {
+        u16 id;
+        char *name;
+
+        /* read 1 sample */
+        int (*poll_sample) (struct wm97xx *, int adcsel, int *sample);
+
+        /* read X,Y,[P] in poll */
+        int (*poll_touch) (struct wm97xx *, struct wm97xx_data *);
+
+        int (*acc_enable) (struct wm97xx *, int enable);
+        void (*phy_init) (struct wm97xx *);
+        void (*dig_enable) (struct wm97xx *, int enable);
+        void (*dig_restore) (struct wm97xx *);
+        void (*aux_prepare) (struct wm97xx *);
+};
+
+
+/* Machine specific and accelerated touch operations */
+struct wm97xx_mach_ops {
+
+        /* accelerated touch readback - coords are transmited on AC97 link */
+        int acc_enabled;
+        void (*acc_pen_up) (struct wm97xx *);
+        int (*acc_pen_down) (struct wm97xx *);
+        int (*acc_startup) (struct wm97xx *);
+        void (*acc_shutdown) (struct wm97xx *);
+
+        /* interrupt mask control - required for accelerated operation */
+        void (*irq_enable) (struct wm97xx *, int enable);
+
+        /* GPIO pin used for accelerated operation */
+        int irq_gpio;
+
+        /* pre and post sample - can be used to minimise any analog noise */
+        void (*pre_sample) (int);  /* function to run before sampling */
+        void (*post_sample) (int);  /* function to run after sampling */
+};
+
+struct wm97xx {
+        u16 dig[3], id, gpio[6], misc;  /* Cached codec registers */
+        u16 dig_save[3];                /* saved during aux reading */
+        struct wm97xx_codec_drv *codec; /* attached codec driver*/
+        struct input_dev *input_dev;    /* touchscreen input device */
+        struct snd_ac97 *ac97;          /* ALSA codec access */
+        struct device *dev;             /* ALSA device */
+        struct platform_device *battery_dev;
+        struct platform_device *touch_dev;
+        struct wm97xx_mach_ops *mach_ops;
+        struct mutex codec_mutex;
+        struct delayed_work ts_reader;  /* Used to poll touchscreen */
+        unsigned long ts_reader_interval; /* Current interval for timer */
+        unsigned long ts_reader_min_interval; /* Minimum interval */
+        unsigned int pen_irq;           /* Pen IRQ number in use */
+        struct workqueue_struct *ts_workq;
+        struct work_struct pen_event_work;
+        u16 acc_slot;                   /* AC97 slot used for acc touch data */
+        u16 acc_rate;                   /* acc touch data rate */
+        unsigned pen_is_down:1;         /* Pen is down */
+        unsigned aux_waiting:1;         /* aux measurement waiting */
+        unsigned pen_probably_down:1;   /* used in polling mode */
+        u16 suspend_mode;               /* PRP in suspend mode */
+};
+
+/*
+ * Codec GPIO access (not supported on WM9705)
+ * This can be used to set/get codec GPIO and Virtual GPIO status.
+ */
+enum wm97xx_gpio_status wm97xx_get_gpio(struct wm97xx *wm, u32 gpio);
+void wm97xx_set_gpio(struct wm97xx *wm, u32 gpio,
+                          enum wm97xx_gpio_status status);
+void wm97xx_config_gpio(struct wm97xx *wm, u32 gpio,
+                                     enum wm97xx_gpio_dir dir,
+                                     enum wm97xx_gpio_pol pol,
+                                     enum wm97xx_gpio_sticky sticky,
+                                     enum wm97xx_gpio_wake wake);
+
+void wm97xx_set_suspend_mode(struct wm97xx *wm, u16 mode);
+
+/* codec AC97 IO access */
+int wm97xx_reg_read(struct wm97xx *wm, u16 reg);
+void wm97xx_reg_write(struct wm97xx *wm, u16 reg, u16 val);
+
+/* aux adc readback */
+int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel);
+
+/* machine ops */
+int wm97xx_register_mach_ops(struct wm97xx *, struct wm97xx_mach_ops *);
+void wm97xx_unregister_mach_ops(struct wm97xx *);
+
+#endif