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Several fixes to get a clean compile of the Arduino touch screen

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This commit is contained in:
Gregory Nutt 2013-07-02 13:52:09 -06:00
parent d6db74e581
commit c8a4f69a69
4 changed files with 24 additions and 27 deletions
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14
configs/arduino-due/README.txt
View File

@ -1024,6 +1024,9 @@ Configuration sub-directories
Application Configuration -> NSH Library
CONFIG_NSH_ARCHINIT=y : Board has architecture-specific initialization
STATUS:
2013-7-2: SD card is not responding. All 0's received on SPI.
3. This configuration has been used for verifying the touchscreen on
on the ITEAD TFT Shield. With the modifications below, you can
include the touchscreen test program at apps/examples/touchscreen as
@ -1043,6 +1046,13 @@ Configuration sub-directories
CONFIG_SPI_BITBANG=y : Enable SPI bit-bang support
CONFIG_INPUT=y : Enable support for input devices
CONFIG_INPUT_ADS7843E=y : Enable support for the XPT2046
CONFIG_ADS7843E_SPIDEV=0 : (Doesn't matter)
CONFIG_ADS7843E_SPIMODE=0 : Use SPI mode 0
CONFIG_ADS7843E_FREQUENCY=1000000 : SPI BAUD 1MHz
CONFIG_ADS7843E_SWAPXY=y : If landscpe orientation
CONFIG_ADS7843E_THRESHX=51 : These will probably need to be tuned
CONFIG_ADS7843E_THRESHY=39
System Type:
CONFIG_GPIO_IRQ=y : GPIO interrupt support
@ -1064,3 +1074,7 @@ Configuration sub-directories
CONFIG_DEBUG=y : Enable debug features
CONFIG_DEBUG_VERBOSE=y : Enable verbose debug output
CONFIG_DEBUG_INPUT=y : Enable debug output from input devices
STATUS:
2013-7-2: TSC is not responding. All 0's received on SPI.

2
configs/arduino-due/src/arduino-due.h
View File

@ -248,7 +248,7 @@
# define GPIO_TSC_IRQ (GPIO_INPUT | GPIO_CFG_PULLUP | GPIO_INT_BOTHEDGES | \
GPIO_PORT_PIOC | GPIO_PIN21)
# define SAM_TCS_IRQ SAM_IRQ_PC21
# define SAM_TSC_IRQ SAM_IRQ_PC21
# endif
/* Only CONFIG_LCD is expected to enable the TFT LCD */

33
configs/arduino-due/src/sam_touchscreen.c
View File

@ -264,22 +264,22 @@ static int tsc_attach(FAR struct ads7843e_config_s *state, xcpt_t isr)
{
/* Attach the XPT2046 interrupt */
ivdbg("Attaching %p to IRQ %d\n", isr, SAM_TCS_IRQ);
return irq_attach(SAM_TCS_IRQ, isr);
ivdbg("Attaching %p to IRQ %d\n", isr, SAM_TSC_IRQ);
return irq_attach(SAM_TSC_IRQ, isr);
}
static void tsc_enable(FAR struct ads7843e_config_s *state, bool enable)
{
/* Attach and enable, or detach and disable */
ivdbg("IRQ:%d enable:%d\n", SAM_TCS_IRQ, enable);
ivdbg("IRQ:%d enable:%d\n", SAM_TSC_IRQ, enable);
if (enable)
{
sam_gpioirqenable(SAM_TCS_IRQ);
sam_gpioirqenable(SAM_TSC_IRQ);
}
else
{
sam_gpioirqdisable(SAM_TCS_IRQ);
sam_gpioirqdisable(SAM_TSC_IRQ);
}
}
@ -290,31 +290,14 @@ static void tsc_clear(FAR struct ads7843e_config_s *state)
static bool tsc_busy(FAR struct ads7843e_config_s *state)
{
#if defined(CONFIG_DEBUG_INPUT) && defined(CONFIG_DEBUG_VERBOSE)
static bool last = (bool)-1;
#endif
/* BUSY is high impedance when CS is high (not selected). When CS is
* is low, BUSY is active high.
*/
bool busy = sam_gpioread(GPIO_TCS_BUSY);
#if defined(CONFIG_DEBUG_INPUT) && defined(CONFIG_DEBUG_VERBOSE)
if (busy != last)
{
ivdbg("busy:%d\n", busy);
last = busy;
}
#endif
return busy;
return false; /* The BUSY signal is not connected */
}
static bool tsc_pendown(FAR struct ads7843e_config_s *state)
{
/* The /PENIRQ value is active low */
bool pendown = !sam_gpioread(GPIO_TCS_IRQ);
bool pendown = !sam_gpioread(GPIO_TSC_IRQ);
ivdbg("pendown:%d\n", pendown);
return pendown;
}
@ -382,7 +365,7 @@ int arch_tcinitialize(int minor)
/* Configure the PIO interrupt */
sam_gpioirq(SAM_TCS_IRQ);
sam_gpioirq(SAM_TSC_IRQ);
/* Get an instance of the SPI interface for the touchscreen chip select */

2
configs/sam3u-ek/README.txt
View File

@ -589,7 +589,7 @@ Configurations
CONFIG_SPI_OWNBUS=y : Smaller code if this is the only SPI device
CONFIG_INPUT=y : Enable support for input devices
CONFIG_INPUT_ADS7843E=y : Enable support for the XPT2048
CONFIG_INPUT_ADS7843E=y : Enable support for the XPT2046
CONFIG_ADS7843E_SPIDEV=2 : Use SPI CS 2 for communication
CONFIG_ADS7843E_SPIMODE=0 : Use SPI mode 0
CONFIG_ADS7843E_FREQUENCY=1000000 : SPI BAUD 1MHz