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-rw-r--r--c/src/lib/libbsp/arm/nds/libnds/source/arm7/touch.c371
1 files changed, 0 insertions, 371 deletions
diff --git a/c/src/lib/libbsp/arm/nds/libnds/source/arm7/touch.c b/c/src/lib/libbsp/arm/nds/libnds/source/arm7/touch.c
deleted file mode 100644
index 65de47ef6b..0000000000
--- a/c/src/lib/libbsp/arm/nds/libnds/source/arm7/touch.c
+++ /dev/null
@@ -1,371 +0,0 @@
-/*---------------------------------------------------------------------------------
- Touch screen control for the ARM7
-
- Copyright (C) 2005
- Michael Noland (joat)
- Jason Rogers (dovoto)
- Dave Murphy (WinterMute)
-
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any
- damages arising from the use of this software.
-
- Permission is granted to anyone to use this software for any
- purpose, including commercial applications, and to alter it and
- redistribute it freely, subject to the following restrictions:
-
- 1. The origin of this software must not be misrepresented; you
- must not claim that you wrote the original software. If you use
- this software in a product, an acknowledgment in the product
- documentation would be appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and
- must not be misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source
- distribution.
-
----------------------------------------------------------------------------------*/
-
-#include <nds/jtypes.h>
-#include <nds/system.h>
-#include <nds/arm7/touch.h>
-#include <nds/interrupts.h>
-
-#include <stdlib.h>
-
-static u8 last_time_touched = 0;
-
-static u8 range_counter_1 = 0;
-static u8 range_counter_2 = 0;
-static u8 range = 20;
-static u8 min_range = 20;
-
-//---------------------------------------------------------------------------------
-static u8 CheckStylus(void){
-//---------------------------------------------------------------------------------
-
- SerialWaitBusy();
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH | SPI_CONTINUOUS; //0x8A01;
- REG_SPIDATA = TSC_MEASURE_TEMP1;
-
- SerialWaitBusy();
-
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH;// 0x8201;
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
-
- if(last_time_touched == 1){
- if( !(REG_KEYXY & 0x40) )
- return 1;
- else{
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH | SPI_CONTINUOUS;
- REG_SPIDATA = TSC_MEASURE_TEMP1;
-
- SerialWaitBusy();
-
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH;
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
-
- return !(REG_KEYXY & 0x40) ? 2 : 0;
- }
- }else{
- return !(REG_KEYXY & 0x40) ? 1 : 0;
- }
-}
-
-//---------------------------------------------------------------------------------
-uint16 touchRead(uint32 command) {
-//---------------------------------------------------------------------------------
- uint16 result, result2;
-
- uint32 oldIME = REG_IME;
-
- REG_IME = 0;
-
- SerialWaitBusy();
-
- // Write the command and wait for it to complete
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH | SPI_CONTINUOUS; //0x8A01;
- REG_SPIDATA = command;
- SerialWaitBusy();
-
- // Write the second command and clock in part of the data
- REG_SPIDATA = 0;
- SerialWaitBusy();
- result = REG_SPIDATA;
-
- // Clock in the rest of the data (last transfer)
- REG_SPICNT = SPI_ENABLE | 0x201;
- REG_SPIDATA = 0;
- SerialWaitBusy();
-
- result2 = REG_SPIDATA >>3;
-
- REG_IME = oldIME;
-
- // Return the result
- return ((result & 0x7F) << 5) | result2;
-}
-
-
-//---------------------------------------------------------------------------------
-uint32 touchReadTemperature(int * t1, int * t2) {
-//---------------------------------------------------------------------------------
- *t1 = touchRead(TSC_MEASURE_TEMP1);
- *t2 = touchRead(TSC_MEASURE_TEMP2);
- return 8490 * (*t2 - *t1) - 273*4096;
-}
-
-
-static bool touchInit = false;
-static s32 xscale, yscale;
-static s32 xoffset, yoffset;
-
-//---------------------------------------------------------------------------------
-static int16 readTouchValue(uint32 command, int16 *dist_max, u8 *err){
-//---------------------------------------------------------------------------------
- int16 values[5];
- int32 aux1, aux2, aux3, dist, dist2, result = 0;
- u8 i, j, k;
-
- *err = 1;
-
- SerialWaitBusy();
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH | SPI_CONTINUOUS;
- REG_SPIDATA = command;
-
- SerialWaitBusy();
-
- for(i=0; i<5; i++){
- REG_SPIDATA = 0;
- SerialWaitBusy();
-
- aux1 = REG_SPIDATA;
- aux1 = aux1 & 0xFF;
- aux1 = aux1 << 16;
- aux1 = aux1 >> 8;
-
- values[4-i] = aux1;
-
- REG_SPIDATA = command;
- SerialWaitBusy();
-
- aux1 = REG_SPIDATA;
- aux1 = aux1 & 0xFF;
- aux1 = aux1 << 16;
-
- aux1 = values[4-i] | (aux1 >> 16);
- values[4-i] = ((aux1 & 0x7FF8) >> 3);
- }
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH;
- REG_SPIDATA = 0;
- SerialWaitBusy();
-
- dist = 0;
- for(i=0; i<4; i++){
- aux1 = values[i];
-
- for(j=i+1; j<5; j++){
- aux2 = values[j];
- aux2 = abs(aux1 - aux2);
- if(aux2>dist) dist = aux2;
- }
- }
-
- *dist_max = dist;
-
- for(i=0; i<3; i++){
- aux1 = values[i];
-
- for(j=i+1; j<4; j++){
- aux2 = values[j];
- dist = abs(aux1 - aux2);
-
- if( dist <= range ){
- for(k=j+1; k<5; k++){
- aux3 = values[k];
- dist2 = abs(aux1 - aux3);
-
- if( dist2 <= range ){
- result = aux2 + (aux1 << 1);
- result = result + aux3;
- result = result >> 2;
- result = result & (~7);
-
- *err = 0;
-
- break;
- }
- }
- }
- }
- }
-
- if((*err) == 1){
- result = values[0] + values[4];
- result = result >> 1;
- result = result & (~7);
- }
-
- return (result & 0xFFF);
-}
-
-//---------------------------------------------------------------------------------
-static void UpdateRange(uint8 *this_range, int16 last_dist_max, u8 data_error, u8 tsc_touched){
-//---------------------------------------------------------------------------------
- //range_counter_1 = counter_0x380A98C
- //range_counter_2 = counter_0x380A990
- //Initial values:
- // range = 20
- // min_range = 20
-
- if(tsc_touched != 0){
- if( data_error == 0){
- range_counter_2 = 0;
-
- if( last_dist_max >= ((*this_range) >> 1)){
- range_counter_1 = 0;
- }else{
- range_counter_1++;
-
- if(range_counter_1 >= 4){
- range_counter_1 = 0;
-
- if((*this_range) > min_range){
- (*this_range)--;
- range_counter_2 = 3;
- }
- }
- }
- }else{
- range_counter_1 = 0;
- range_counter_2++;
-
- if(range_counter_2 >= 4){
-
- range_counter_2 = 0;
-
- if((*this_range) < 35){ //0x23 = 35
- *this_range = (*this_range) + 1;
- }
- }
- }
- }else{
- range_counter_2 = 0;
- range_counter_1 = 0;
- }
-}
-
-//---------------------------------------------------------------------------------
-// reading pixel position:
-//---------------------------------------------------------------------------------
-touchPosition touchReadXY() {
-//---------------------------------------------------------------------------------
-
- int16 dist_max_y, dist_max_x, dist_max;
- u8 error, error_where, first_check, i;
-
- touchPosition touchPos = { 0, 0, 0, 0, 0, 0 };
-
- if ( !touchInit ) {
-
- xscale = ((PersonalData->calX2px - PersonalData->calX1px) << 19) / ((PersonalData->calX2) - (PersonalData->calX1));
- yscale = ((PersonalData->calY2px - PersonalData->calY1px) << 19) / ((PersonalData->calY2) - (PersonalData->calY1));
-
- xoffset = ((PersonalData->calX1 + PersonalData->calX2) * xscale - ((PersonalData->calX1px + PersonalData->calX2px) << 19) ) / 2;
- yoffset = ((PersonalData->calY1 + PersonalData->calY2) * yscale - ((PersonalData->calY1px + PersonalData->calY2px) << 19) ) / 2;
- touchInit = true;
- }
-
- uint32 oldIME = REG_IME;
-
- REG_IME = 0;
-
- first_check = CheckStylus();
- if(first_check != 0){
- error_where = 0;
-
- touchPos.z1 = readTouchValue(TSC_MEASURE_Z1 | 1, &dist_max, &error);
- touchPos.z2 = readTouchValue(TSC_MEASURE_Z2 | 1, &dist_max, &error);
-
- touchPos.x = readTouchValue(TSC_MEASURE_X | 1, &dist_max_x, &error);
- if(error==1) error_where += 1;
-
- touchPos.y = readTouchValue(TSC_MEASURE_Y | 1, &dist_max_y, &error);
- if(error==1) error_where += 2;
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH | SPI_CONTINUOUS;
- for(i=0; i<12; i++){
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
- }
-
- REG_SPICNT = SPI_ENABLE | SPI_BAUD_2MHz | SPI_DEVICE_TOUCH;
- REG_SPIDATA = 0;
-
- SerialWaitBusy();
-
- if(first_check == 2) error_where = 3;
-
- switch( CheckStylus() ){
- case 0:
- last_time_touched = 0;
- break;
- case 1:
- last_time_touched = 1;
-
- if(dist_max_x > dist_max_y)
- dist_max = dist_max_x;
- else
- dist_max = dist_max_y;
-
- break;
- case 2:
- last_time_touched = 0;
- error_where = 3;
-
- break;
- }
-
- s16 px = ( touchPos.x * xscale - xoffset + xscale/2 ) >>19;
- s16 py = ( touchPos.y * yscale - yoffset + yscale/2 ) >>19;
-
- if ( px < 0) px = 0;
- if ( py < 0) py = 0;
- if ( px > (SCREEN_WIDTH -1)) px = SCREEN_WIDTH -1;
- if ( py > (SCREEN_HEIGHT -1)) py = SCREEN_HEIGHT -1;
-
- touchPos.px = px;
- touchPos.py = py;
-
-
- }else{
- error_where = 3;
- touchPos.x = 0;
- touchPos.y = 0;
- last_time_touched = 0;
- }
-
- UpdateRange(&range, dist_max, error_where, last_time_touched);
-
- REG_IME = oldIME;
-
-
- return touchPos;
-
-}
-
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