ENGR00065563 Merge L2622-01 to 2.6.24

Merge L2622-01 release to 2.6.24 kernel.

1 files changed, 452 insertions, 0 deletions

diff --git a/include/asm-arm/arch-mxc/pmic_adc.h b/include/asm-arm/arch-mxc/pmic_adc.h
new file mode 100644
index 000000000000..832cfe351403
--- /dev/null
+++ b/include/asm-arm/arch-mxc/pmic_adc.h
@@ -0,0 +1,452 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU Lesser General
+ * Public License.  You may obtain a copy of the GNU Lesser General
+ * Public License Version 2.1 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/lgpl-license.html
+ * http://www.gnu.org/copyleft/lgpl.html
+ */
+
+#ifndef __ASM_ARCH_MXC_PMIC_ADC_H__
+#define __ASM_ARCH_MXC_PMIC_ADC_H__
+
+/*!
+ * @defgroup PMIC_ADC PMIC Digitizer Driver
+ * @ingroup PMIC_DRVRS
+ */
+
+/*!
+ * @file arch-mxc/pmic_adc.h
+ * @brief This is the header of PMIC ADC driver.
+ *
+ * @ingroup PMIC_ADC
+ */
+
+#include <asm/ioctl.h>
+#include <asm/arch/pmic_status.h>
+#include <asm/arch/pmic_external.h>
+
+/*!
+ * @name IOCTL user space interface
+ */
+
+/*! @{ */
+/*!
+ * Initialize ADC.
+ * Argument type: none.
+ */
+#define PMIC_ADC_INIT                   _IO('p', 0xb0)
+/*!
+ * De-initialize ADC.
+ * Argument type: none.
+ */
+#define PMIC_ADC_DEINIT                 _IO('p', 0xb1)
+/*!
+ * Convert one channel.
+ * Argument type: pointer to t_adc_convert_param.
+ */
+#define PMIC_ADC_CONVERT                _IOWR('p', 0xb2, int)
+/*!
+ * Convert one channel eight samples.
+ * Argument type: pointer to t_adc_convert_param.
+ */
+#define PMIC_ADC_CONVERT_8X             _IOWR('p', 0xb3, int)
+/*!
+ * Convert multiple channels.
+ * Argument type: pointer to t_adc_convert_param.
+ */
+#define PMIC_ADC_CONVERT_MULTICHANNEL   _IOWR('p', 0xb4, int)
+/*!
+ * Set touch screen operation mode.
+ * Argument type: t_touch_mode.
+ */
+#define PMIC_ADC_SET_TOUCH_MODE         _IOW('p', 0xb5, int)
+/*!
+ * Get touch screen operation mode.
+ * Argument type: pointer to t_touch_mode.
+ */
+#define PMIC_ADC_GET_TOUCH_MODE         _IOR('p', 0xb6, int)
+/*!
+ * Get touch screen sample.
+ * Argument type: pointer to t_touch_sample.
+ */
+#define PMIC_ADC_GET_TOUCH_SAMPLE       _IOWR('p', 0xb7, int)
+/*!
+ * Get battery current.
+ * Argument type: pointer to unsigned short.
+ */
+#define PMIC_ADC_GET_BATTERY_CURRENT    _IOR('p', 0xb8, int)
+/*!
+ * Activate comparator.
+ * Argument type: pointer to t_adc_comp_param.
+ */
+#define PMIC_ADC_ACTIVATE_COMPARATOR    _IOW('p', 0xb9, int)
+/*!
+ * De-active comparator.
+ * Argument type: none.
+ */
+#define PMIC_ADC_DEACTIVE_COMPARATOR    _IOW('p', 0xba, int)
+
+/*!
+ * Install touch screen read interface.
+ */
+#define TOUCH_SCREEN_READ_INSTALL       _IOWR('D',4, int)
+/*!
+ * Remove touch screen read interface.
+ */
+#define TOUCH_SCREEN_READ_UNINSTALL     _IOWR('D',5, int)
+
+/*! @{ */
+/*!
+ * @name Touch Screen minimum and maximum values
+ */
+#define TS_X_MIN                80	/*! < Minimum X */
+#define TS_Y_MIN                80	/*! < Minimum Y */
+
+#define TS_X_MAX                1000	/*! < Maximum X */
+#define TS_Y_MAX                1000	/*! < Maximum Y */
+/*! @} */
+/*!
+ * This enumeration defines input channels for PMIC ADC
+ */
+
+typedef enum {
+	BATTERY_VOLTAGE,
+	BATTERY_CURRENT,
+	CHARGE_VOLTAGE,
+	CHARGE_CURRENT,
+	APPLICATION_SUPPLY,
+	TS_X_POS1,
+	TS_X_POS2,
+	TS_Y_POS1,
+	TS_Y_POS2,
+	GEN_PURPOSE_AD4,
+	GEN_PURPOSE_AD5,
+	GEN_PURPOSE_AD6,
+	GEN_PURPOSE_AD7,
+	GEN_PURPOSE_AD8,
+	GEN_PURPOSE_AD9,
+	GEN_PURPOSE_AD10,
+	GEN_PURPOSE_AD11,
+	USB_ID,
+	LICELL,
+	RAWEXTBPLUSSENSE,
+	MPBSENSE,
+	BATSENSE,
+	GND,
+	THERMISTOR,
+	DIE_TEMP
+} t_channel;
+
+/*!
+ * This enumeration defines reason of ADC Comparator interrupt.
+ */
+typedef enum {
+	/*!
+	 * Greater than WHIGH
+	 */
+	GTWHIGH,
+	/*!
+	 * Less than WLOW
+	 */
+	LTWLOW,
+} t_comp_exception;
+
+/*!
+ * ADC comparator callback function type
+ */
+typedef void (*t_comparator_cb) (t_comp_exception reason);
+
+/*!
+ * This enumeration defines the touch screen operation modes.
+ */
+typedef enum {
+	/*!
+	 * Touch Screen X position
+	 */
+	TS_X_POSITION = 0,
+	/*!
+	 * Touch Screen Y position
+	 */
+	TS_Y_POSITION = 1,
+	/*!
+	 * Pressure
+	 */
+	TS_PRESSURE = 2,
+	/*!
+	 * Plate X
+	 */
+	TS_PLATE_X = 3,
+	/*!
+	 * Plate Y
+	 */
+	TS_PLATE_Y = 4,
+	/*!
+	 * Standby
+	 */
+	TS_STANDBY = 5,
+	/*!
+	 * No touch screen, TSX1, TSX2, TSY1 and TSY2 are used as  general
+	 * purpose A/D inputs.
+	 */
+	TS_NONE = 6,
+} t_touch_mode;
+/*!
+ * This structure is used to report touch screen value.
+ */
+typedef struct {
+/*!
+	 * Touch Screen X position
+	 */
+	unsigned int x_position;
+	/*!
+	 * Touch Screen X position1
+	 */
+	unsigned int x_position1;
+	/*!
+	 * Touch Screen X position2
+	 */
+	unsigned int x_position2;
+	/*!
+	 * Touch Screen X position3
+	 */
+	unsigned int x_position3;
+	/*!
+	 * Touch Screen Y position
+	 */
+	unsigned int y_position;
+	/*!
+	 * Touch Screen Y position1
+	 */
+	unsigned int y_position1;
+	/*!
+	 * Touch Screen Y position2
+	 */
+	unsigned int y_position2;
+	/*!
+	 * Touch Screen Y position3
+	 */
+	unsigned int y_position3;
+	/*!
+	 * Touch Screen contact value
+	 */
+	unsigned int contact_resistance;
+} t_touch_screen;
+
+/*!
+ * This enumeration defines ADC conversion modes.
+ */
+typedef enum {
+	/*!
+	 * Sample 8 channels, 1 sample per channel
+	 */
+	ADC_8CHAN_1X = 0,
+	/*!
+	 * Sample 1 channel 8 times
+	 */
+	ADC_1CHAN_8X,
+} t_conversion_mode;
+
+/*!
+ * This structure is used with IOCTL code \a PMIC_ADC_CONVERT,
+ * \a PMIC_ADC_CONVERT_8X and \a PMIC_ADC_CONVERT_MULTICHANNEL.
+ */
+
+typedef struct {
+	/*!
+	 * channel or channels to be sampled.
+	 */
+	t_channel channel;
+	/*!
+	 * holds up to 16 sampling results
+	 */
+	unsigned short result[16];
+} t_adc_convert_param;
+
+/*!
+ * This structure is used to activate/deactivate ADC comparator.
+ */
+typedef struct {
+	/*!
+	 * wlow.
+	 */
+	unsigned char wlow;
+	/*!
+	 * whigh.
+	 */
+	unsigned char whigh;
+	/*!
+	 * channel to monitor
+	 */
+	t_channel channel;
+	/*!
+	 * callback function.
+	 */
+	t_comparator_cb callback;
+} t_adc_comp_param;
+
+/* EXPORTED FUNCTIONS */
+
+#ifdef __KERNEL__
+/*!
+ * This function initializes all ADC registers with default values. This
+ * function also registers the interrupt events.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_init(void);
+
+/*!
+ * This function disables the ADC, de-registers the interrupt events.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_deinit(void);
+
+/*!
+ * This function triggers a conversion and returns one sampling result of one
+ * channel.
+ *
+ * @param        channel   The channel to be sampled
+ * @param        result    The pointer to the conversion result. The memory
+ *                         should be allocated by the caller of this function.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+
+PMIC_STATUS pmic_adc_convert(t_channel channel, unsigned short *result);
+
+/*!
+ * This function triggers a conversion and returns eight sampling results of
+ * one channel.
+ *
+ * @param        channel   The channel to be sampled
+ * @param        result    The pointer to array to store eight sampling results.
+ *                         The memory should be allocated by the caller of this
+ *                         function.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+
+PMIC_STATUS pmic_adc_convert_8x(t_channel channel, unsigned short *result);
+
+/*!
+ * This function triggers a conversion and returns sampling results of each
+ * specified channel.
+ *
+ * @param        channels  This input parameter is bitmap to specify channels
+ *                         to be sampled.
+ * @param        result    The pointer to array to store sampling result.
+ *                         The order of the result in the array is from lowest
+ *                         channel number to highest channel number of the
+ *                         sampled channels.
+ *                         The memory should be allocated by the caller of this
+ *                         function.
+ *			   Note that the behavior of this function might differ
+ *			   from one platform to another regarding especially
+ *			   channels order.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+
+PMIC_STATUS pmic_adc_convert_multichnnel(t_channel channels,
+					 unsigned short *result);
+
+/*!
+ * This function sets touch screen operation mode.
+ *
+ * @param        touch_mode   Touch screen operation mode.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_set_touch_mode(t_touch_mode touch_mode);
+
+/*!
+ * This function retrieves the current touch screen operation mode.
+ *
+ * @param        touch_mode   Pointer to the retrieved touch screen operation
+ *                            mode.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_get_touch_mode(t_touch_mode * touch_mode);
+
+/*!
+ * This function retrieves the current touch screen operation mode.
+ *
+ * @param        touch_sample Pointer to touch sample.
+ * @param        wait	Indicates if this function needs to block or not.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_get_touch_sample(t_touch_screen * ts_value, int wait);
+
+/*!
+ * This function starts a Battery Current mode conversion.
+ *
+ * @param        mode      Conversion mode.
+ * @param        result    Battery Current measurement result.
+ *                         if \a mode = ADC_8CHAN_1X, the result is \n
+ *                             result[0] = (BATTP - BATT_I) \n
+ *                         if \a mode = ADC_1CHAN_8X, the result is \n
+ *                             result[0] = BATTP \n
+ *                             result[1] = BATT_I \n
+ *                             result[2] = BATTP \n
+ *                             result[3] = BATT_I \n
+ *                             result[4] = BATTP \n
+ *                             result[5] = BATT_I \n
+ *                             result[6] = BATTP \n
+ *                             result[7] = BATT_I
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_get_battery_current(t_conversion_mode mode,
+					 unsigned short *result);
+
+/*!
+ * This function actives the comparator.  When comparator is activated and ADC
+ * is enabled, the 8th converted value will be digitally compared against the
+ * window defined by WLOW and WHIGH registers.
+ *
+ * @param        low      Comparison window low threshold (WLOW).
+ * @param        high     Comparison window high threshold (WHIGH).
+ * @param        callback Callback function to be called when the converted
+ *                        value is beyond the comparison window.  The callback
+ *                        function will pass a parameter of type
+ *                        \b t_comp_expection to indicate the reason of
+ *                        comparator exception.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+
+PMIC_STATUS pmic_adc_active_comparator(unsigned char low,
+				       unsigned char high,
+				       t_channel channel,
+				       t_comparator_cb callback);
+
+/*!
+ * This function de-actives the comparator.
+ *
+ * @return       This function returns PMIC_SUCCESS if successful.
+ */
+PMIC_STATUS pmic_adc_deactive_comparator(void);
+
+/*!
+ * This function enables the touch screen read interface.
+ *
+ * @return       This function returns 0 if successful.
+ */
+PMIC_STATUS pmic_adc_install_ts(void);
+
+/*!
+ * This function disables the touch screen read interface.
+ *
+ * @return       This function returns 0 if successful.
+ */
+PMIC_STATUS pmic_adc_remove_ts(void);
+#endif				/* _KERNEL */
+#endif				/* __ASM_ARCH_MXC_PMIC_ADC_H__ */