Mercurial > ecos
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 |
| parents | |
| children | e7ba79f6d3a8 |
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new file mode 100644 --- /dev/null +++ b/packages/hal/arm/cl7211/current/misc/panel_test.c @@ -0,0 +1,175 @@ +//========================================================================== +// +// 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() +
