diff packages/hal/arm/cl7211/current/misc/panel_test.c @ 36:e97d78785e2d ecos-sw-1999-09-12

Merge from eCos master repository on 1999-09-12-15:40:34-BST
author jlarmour
date Sun, 12 Sep 1999 15:26:05 +0000
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children e7ba79f6d3a8
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+//==========================================================================
+//
+//        panel_test.c
+//
+//        Cirrus CL72xx eval board LCD touch panel test code
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):     gthomas
+// Contributors:  gthomas
+// Date:          1999-05-15
+// Description:   Tool used to test LCD touch panel
+//####DESCRIPTIONEND####
+
+#include <pkgconf/kernel.h>   // Configuration header
+#include <cyg/kernel/kapi.h>
+#include <cyg/infra/diag.h>
+
+#include <cyg/hal/hal_cl7211.h>  // Board definitions
+
+#include <cyg/hal/hal_io.h>             // IO macros
+#include <cyg/hal/hal_arch.h>           // Register state info
+#include <cyg/hal/hal_diag.h>
+#include <cyg/hal/hal_intr.h>           // HAL interrupt macros
+#include <cyg/hal/drv_api.h>            // HAL ISR support
+
+#ifndef FALSE
+#define FALSE 0
+#define TRUE  1
+#endif
+
+#define STACK_SIZE 4096
+static char stack[STACK_SIZE];
+static cyg_thread thread_data;
+static cyg_handle_t thread_handle;
+static cyg_interrupt panel_interrupt;
+static cyg_handle_t  panel_interrupt_handle;
+
+#include "lcd_support.c"
+
+#define SYNCIO_TXFRMEN     (1<<14)
+#define SYNCIO_FRAMELEN(n) (n<<8)
+#define ADC_START          (1<<7)
+#define ADC_CHAN(n)        (n<<4)
+#define ADC_UNIPOLAR       (1<<3)
+#define ADC_SINGLE         (1<<2)
+#define ADC_EXT_CLOCK      (3<<0)
+#define TOUCH_CTL          KBD_PORT
+
+// FUNCTIONS
+
+static void
+cyg_test_exit(void)
+{
+    while (TRUE) ;
+}
+
+static cyg_uint32
+adc_sample(int chan)
+{
+    cyg_uint32 val;
+    *(volatile cyg_uint32 *)SYNCIO = SYNCIO_TXFRMEN | SYNCIO_FRAMELEN(24) |
+        ADC_START | ADC_CHAN(chan) | ADC_UNIPOLAR | ADC_SINGLE | ADC_EXT_CLOCK;
+    while (*(volatile cyg_uint32 *)SYSFLG1 & SYSFLG1_SSIBUSY) ;
+    val = *(volatile cyg_uint32 *)SYNCIO;
+    return val & 0xFFFF;
+}
+
+static void
+panel_delay(void)
+{
+    volatile int i;
+    for (i = 0;  i < 50;  i++) ;
+}
+
+// This ISR is called when the touch panel interrupt occurs
+int 
+cyg_hal_panel_isr(cyg_vector_t vector, cyg_addrword_t data, HAL_SavedRegisters *regs)
+{
+    int iX, iY;
+    cyg_drv_interrupt_mask(CYGNUM_HAL_INTERRUPT_EINT2);
+    diag_printf("Touched!\n");
+    *(volatile cyg_uint8 *)TOUCH_CTL = 0x50;  // Drive TSPY, ground TSMY, and disconnect TSPX and TSMX
+    panel_delay();
+    iY = adc_sample(2);
+    *(volatile cyg_uint8 *)TOUCH_CTL = 0xA0;  // Drive TSPX, ground TSMX, and disconnect TSPY and TSMY
+    panel_delay();
+    iX = adc_sample(7);
+    diag_printf("X = %d, Y = %d, ISR1: %x\n", iX, iY, *(volatile cyg_uint32 *)INTSR1);
+    *(volatile cyg_uint8 *)TOUCH_CTL = 0x00;  // Disable drives
+    while (*(volatile cyg_uint32 *)INTSR1 & INTSR1_EINT2) ;
+    *(volatile cyg_uint8 *)TOUCH_CTL = 0x70;  // Idle state (so interrupt works)
+//    cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT2);
+    return 0;  // No need to run DSR
+}
+
+static void
+panel_exercise(cyg_addrword_t p)
+{
+    int i, j;
+    diag_printf("LCD touch panel test here!\n");
+
+    *(volatile cyg_uint8 *)PEDDR   = 0x0F;  // Register E data direction
+    *(volatile cyg_uint8 *)PEDR   |= 0x04;  // Enable touch panel
+
+    diag_printf("PEDR = %x\n", *(volatile cyg_uint8 *)PEDR);
+
+    *(volatile cyg_uint8 *)TOUCH_CTL = 0x70;  // Idle state (so interrupt works)
+
+    lcd_on(4);
+    lcd_clear();
+
+    *(volatile cyg_uint32 *)SYSCON1 |= SYSCON1_ADC_CLOCK_128kHZ;
+
+    cyg_drv_interrupt_create(CYGNUM_HAL_INTERRUPT_EINT2,
+                             99,                     // Priority - what goes here?
+                             0,                      //  Data item passed to interrupt handler
+                             cyg_hal_panel_isr,
+                             0,
+                             &panel_interrupt_handle,
+                             &panel_interrupt);
+    cyg_drv_interrupt_attach(panel_interrupt_handle);
+    cyg_drv_interrupt_acknowledge(CYGNUM_HAL_INTERRUPT_EINT2);
+    cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT2);
+
+    for (i = 0;  i < 50;  i++) {
+        diag_printf("Please touch screen now:\n");
+        cyg_drv_interrupt_unmask(CYGNUM_HAL_INTERRUPT_EINT2);
+        cyg_thread_delay(5*100);
+    }
+
+    diag_printf("All done!\n");
+    cyg_test_exit();
+}
+
+externC void
+cyg_start( void )
+{
+    // Create a main thread, so we can run the scheduler and have time 'pass'
+    cyg_thread_create(10,                // Priority - just a number
+                      panel_exercise,    // entry
+                      0,                 // initial parameter
+                      "LCD_panel_thread", // Name
+                      &stack[0],         // Stack
+                      STACK_SIZE,        // Size
+                      &thread_handle,    // Handle
+                      &thread_data       // Thread data structure
+            );
+    cyg_thread_resume(thread_handle);  // Start it
+    cyg_scheduler_start();
+} // cyg_package_start()
+