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Add STMPE11 touchscreen logic
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4703 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
@@ -57,8 +57,35 @@
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* Pre-Processor Definitions
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********************************************************************************************/
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/* Configuration ****************************************************************************/
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/* The STMPE811 interfaces with the host CPU via a I2C or SPI interface. The pin IN_1 allows
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* the selection of interface protocol at reset state.
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/* Prerequisites: CONFIG_INPUT=y
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* Other settings that effect the driver: CONFIG_DISABLE_POLL
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*
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* CONFIG_INPUT_STMPE11
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* Enables support for the STMPE11 driver (Needs CONFIG_INPUT)
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* CONFIG_STMPE11_SPI
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* Enables support for the SPI interface (not currenly supported)
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* CONFIG_STMPE11_I2C
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* Enables support for the I2C interface
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* CONFIG_STMPE11_MULTIPLE
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* Can be defined to support multiple STMPE11 devices on board.
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* CONFIG_STMPE11_NPOLLWAITERS
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* Maximum number of threads that can be waiting on poll() (ignored if
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* CONFIG_DISABLE_POLL is set).
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* CONFIG_STMPE11_TSC_DISABLE
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* Disable driver touchscreen functionality.
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* CONFIG_STMPE11_ADC_DISABLE
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* Disable driver ADC functionality.
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* CONFIG_STMPE11_GPIO_DISABLE
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* Disable driver GPIO functionlaity.
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* CONFIG_STMPE11_GPIOINT_DISABLE
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* Disable driver GPIO interrupt functionlality (ignored if GPIO functionality is
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* disabled).
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* CONFIG_STMPE11_TS_DISABLE
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* Disable driver temperature sensor functionlaity.
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*/
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/* The STMPE811 interfaces with the target CPU via a I2C or SPI interface. The pin IN_1
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* allows the selection of interface protocol at reset state.
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*/
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#if !defined(CONFIG_STMPE11_SPI) && !defined(CONFIG_STMPE11_I2C)
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@@ -235,6 +262,7 @@
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/* GPIO set/clear/sta/dir/edge/rising/falling/af registers */
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#define GPIO_PIN(n) (1 << (n))
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#define TSC_PIN_SET (0xf0) /* Pins 4-7: Used by touchscreen */
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/* ADC control */
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@@ -286,32 +314,32 @@
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/* Touchscreen controller configuration */
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#define TSWC_CFG_SETTLING_SHIFT (0) /* Bits 0-2: Panel driver settling time */
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#define TSWC_CFG_SETTLING_MASK (7 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_10US (0 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_100US (1 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_500US (2 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_1MS (3 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_5MS (4 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_10MS (5 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_50MS (6 << TSWC_CFG_SETTLING_SHIFT)
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# define TSWC_CFG_SETTLING_100MS (7 << TSWC_CFG_SETTLING_SHIFT)
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#define TSWC_CFG_TOUCH_DELAY_SHIFT (1) /* Bits 3-5: Touch detect delay */
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#define TSWC_CFG_TOUCH_DELAY_MASK (7 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_10US (0 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_50US (1 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_100US (1 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_500US (2 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_1MS (3 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_5MS (4 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_10MS (5 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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# define TSWC_CFG_TOUCH_DELAY_50MS (6 << TSWC_CFG_TOUCH_DELAY_SHIFT)
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#define TSWC_CFG_AVE_CTRL_SHIFT (6) /* Bits 6-7: Average control */
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#define TSWC_CFG_AVE_CTRL_MASK (3 << TSWC_CFG_AVE_CTRL_SHIFT)
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# define TSWC_CFG_AVE_CTRL_1SAMPLE (0 << TSWC_CFG_AVE_CTRL_SHIFT)
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# define TSWC_CFG_AVE_CTRL_2SAMPLES (1 << TSWC_CFG_AVE_CTRL_SHIFT)
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# define TSWC_CFG_AVE_CTRL_4SAMPLES (2 << TSWC_CFG_AVE_CTRL_SHIFT)
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# define TSWC_CFG_AVE_CTRL_8SAMPLES (3 << TSWC_CFG_AVE_CTRL_SHIFT)
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#define TSC_CFG_SETTLING_SHIFT (0) /* Bits 0-2: Panel driver settling time */
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#define TSC_CFG_SETTLING_MASK (7 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_10US (0 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_100US (1 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_500US (2 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_1MS (3 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_5MS (4 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_10MS (5 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_50MS (6 << TSC_CFG_SETTLING_SHIFT)
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# define TSC_CFG_SETTLING_100MS (7 << TSC_CFG_SETTLING_SHIFT)
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#define TSC_CFG_TOUCH_DELAY_SHIFT (1) /* Bits 3-5: Touch detect delay */
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#define TSC_CFG_TOUCH_DELAY_MASK (7 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_10US (0 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_50US (1 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_100US (2 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_500US (3 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_1MS (4 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_5MS (5 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_10MS (6 << TSC_CFG_TOUCH_DELAY_SHIFT)
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# define TSC_CFG_TOUCH_DELAY_50MS (7 << TSC_CFG_TOUCH_DELAY_SHIFT)
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#define TSC_CFG_AVE_CTRL_SHIFT (6) /* Bits 6-7: Average control */
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#define TSC_CFG_AVE_CTRL_MASK (3 << TSC_CFG_AVE_CTRL_SHIFT)
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# define TSC_CFG_AVE_CTRL_1SAMPLE (0 << TSC_CFG_AVE_CTRL_SHIFT)
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# define TSC_CFG_AVE_CTRL_2SAMPLES (1 << TSC_CFG_AVE_CTRL_SHIFT)
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# define TSC_CFG_AVE_CTRL_4SAMPLES (2 << TSC_CFG_AVE_CTRL_SHIFT)
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# define TSC_CFG_AVE_CTRL_8SAMPLES (3 << TSC_CFG_AVE_CTRL_SHIFT)
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/* Current status of FIFO */
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@@ -328,6 +356,8 @@
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/* Touchscreen controller drive I */
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#define TSC_IDRIVE (1 << 0) /* Bit 0: MAX current on TSC driving channel */
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# define TSC_IDRIVE_20MA (0) /* 20mA typical, 35mA max */
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# define TSC_IDRIVE_50MA (1 << 0) /* 50mA typical, 80mA max */
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/* Touchscreen controller shield */
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@@ -427,6 +457,16 @@ struct stmpe11_config_s
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int irq; /* IRQ number received by interrupt handler. */
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#endif
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/* These are the timing valuses for ADC CTRL1 and CTRL2. These values
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* are only used if either the TSC or the ADC are enabled. These values
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* determine the characteristics of sampling.
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*/
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#if !defined(CONFIG_STMPE11_ADC_DISABLE) || !defined(CONFIG_STMPE11_TSC_DISABLE)
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uint8_t ctrl1; /* Initialization value for ADC CTRL1 */
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uint8_t ctrl2; /* Initialization value for ADC CTRL1 */
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#endif
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/* IRQ/GPIO access callbacks. These operations all hidden behind
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* callbacks to isolate the STMPE11 driver from differences in GPIO
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* interrupt handling by varying boards and MCUs. If possible,
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@@ -436,15 +476,11 @@ struct stmpe11_config_s
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* attach - Attach the STMPE11 interrupt handler to the GPIO interrupt
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* enable - Enable or disable the GPIO interrupt
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* clear - Acknowledge/clear any pending GPIO interrupt
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* pendown - Return the state of the pen down GPIO input (TSC only)
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*/
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int (*attach)(FAR struct stmpe11_config_s *state, xcpt_t isr);
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void (*enable)(FAR struct stmpe11_config_s *state, bool enable);
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void (*clear)(FAR struct stmpe11_config_s *state);
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#ifndef CONFIG_STMPE11_TSC_DISABLE
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bool (*pendown)(FAR struct stmpe11_config_s *state);
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#endif
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};
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/* Since the STMPE11 is a multi-function device, no functionality is assumed when the device
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@@ -600,15 +636,13 @@ EXTERN int stmpe11_gpioattach(STMPE11_HANDLE handle, uint8_t pinconfig,
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#endif
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/********************************************************************************************
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* Name: stmpe11_adctiming
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* Name: stmpe11_adcinitialize
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*
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* Description:
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* Configure overall ADC timing that applies to all pins.
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* Configure for ADC mode operation. Set overall ADC ADC timing that applies to all pins.
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*
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* Input Parameters:
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* handle - The handle previously returned by stmpe11_instantiate
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* ctrl1 - The value of the ADC_CRTL1 register (see above).
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* ctrl2 - The value of the ADC_CRTL2 register (see above).
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*
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* Returned Value:
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* Zero is returned on success. Otherwise, a negated errno value is returned to indicate
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@@ -617,7 +651,7 @@ EXTERN int stmpe11_gpioattach(STMPE11_HANDLE handle, uint8_t pinconfig,
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********************************************************************************************/
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#ifndef CONFIG_STMPE11_ADC_DISABLE
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EXTERN int stmpe11_adctiming(STMPE11_HANDLE handle, uint8_t ctrl1, uint8_t ctrl2);
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EXTERN int stmpe11_adcinitialize(STMPE11_HANDLE handle);
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#endif
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/********************************************************************************************
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