First reading out of the touchpad!
disabled power handling for now, so the device will power off when unplugged again (because there is no other poweroff method provided) git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18480 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Frank Gevaerts
parent
5a0c3ec9e2
commit
3637ef9b32
2 changed files with 175 additions and 29 deletions
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@ -47,10 +47,164 @@
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#include <stdarg.h>
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char version[] = APPSVERSION;
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#define LONG_DELAY 200000
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#define SHORT_DELAY 50000
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#define PAUSE_DELAY 50000
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#define SPIDELAY(_x) void(_x);
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#define SETMOSI() PDAT1 |= (1 << 6)
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#define CLRMOSI() PDAT1 &= ~(1 << 6)
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#define MISO ((PDAT0 >> 3) & 1)
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#define RDY (PDAT1 & (1 << 5))
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#define SETCLK() PDAT0 |= (1 << 1)
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#define CLRCLK() PDAT0 &= ~(1 << 1)
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#define SETSS() PDAT0 |= (1 << 0)
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#define CLRSS() PDAT0 &= ~(1 << 0)
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#define SPISPEED 10000
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#define QT_CT 0x00800000
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#define QT_AKS_DISABLED 0x00000000
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#define QT_AKS_GLOBAL 0x00010000
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#define QT_AKS_MODE1 0x00020000
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#define QT_AKS_MODE2 0x00030000
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#define QT_AKS_MODE3 0x00040000
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#define QT_AKS_MODE4 0x00050000
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#define QT_SLD_WHEEL 0x00000000
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#define QT_SLD_SLIDER 0x00080000
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#define QT_KEY7_NORMAL 0x00000000
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#define QT_KEY7_PROX 0x00100000
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#define QT_MODE_FREE 0x00000000
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#define QT_MODE_LP1 0x00000100
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#define QT_MODE_LP2 0x00000200
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#define QT_MODE_LP3 0x00000300
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#define QT_MODE_LP4 0x00000400
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#define QT_MODE_SYNC 0x00000500
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#define QT_MODE_SLEEP 0x00000600
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#define QT_LPB 0x00000800
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#define QT_DI 0x00001000
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#define QT_MOD_10 0x00000000
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#define QT_MOD_20 0x00002000
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#define QT_MOD_60 0x00004000
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#define QT_MOD_INF 0x00006000
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#define QT_CAL_ALL 0x00000000
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#define QT_CAL_KEYS 0x00000008
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#define QT_CAL_WHEEL 0x00000010
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#define QT_RES_4 0x00000020
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#define QT_RES_8 0x00000040
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#define QT_RES_16 0x00000060
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#define QT_RES_32 0x00000080
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#define QT_RES_64 0x000000A0
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#define QT_RES_128 0x000000C0
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#define QT_RES_256 0x000000E0
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static inline void delay(int duration)
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{
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volatile int i;
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for(i=0;i<duration;i++);
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}
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void init_qt1106(void)
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{
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int oldval;
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oldval = PCON0;
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//Set P0.0 and P0.1 to output, set P0.3 to input
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PCON0 = ((oldval & ~(3 << 0 || 3 << 2 || 3 << 6)) | (1 << 0 | 1 << 2));
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oldval = PCON1;
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//Set P1.5 to input, set P1.6 to input
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PCON1 = ((oldval & ~(0xf << 20 || 0xf << 24)) | (1 << 24));
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SETSS();
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SETCLK();
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}
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unsigned read_qt1106(unsigned int input)
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{
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int output = 0;
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int i;
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while(!RDY) {}
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delay(10); // < 470 us
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CLRSS();
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delay(13); // > 22 us
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for (i = 0; i < 24; i++) {
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CLRCLK();
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if (input & (1 << 23))
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SETMOSI();
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else
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CLRMOSI();
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input <<= 1;
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delay(20); // >> 6.7 us
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SETCLK();
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output |= MISO;
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output <<= 1;
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delay(20); // >> 6.7 us
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}
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SETSS();
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return (output & 0x00FFFFFF);
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}
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void bl_debug(bool bit)
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{
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if (bit)
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{
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(LONG_DELAY);
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(LONG_DELAY);
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//for(i=0;i<pause_delay;i++);
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}
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else
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{
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(SHORT_DELAY);
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(SHORT_DELAY);
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//for(i=0;i<pause_delay;i++);
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}
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}
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void bl_debug_int(unsigned int input)
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{
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unsigned int i;
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for (i = 0; i < input; i++)
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{
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(SHORT_DELAY);
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PDAT0 ^= (1 << 2); //Toggle backlight
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delay(2*SHORT_DELAY);
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}
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delay(SHORT_DELAY*6);
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}
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void main(void)
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{
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int counter=0;
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//Set backlight pin to output and enable
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int oldval = PCON0;
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PCON0 = ((oldval & ~(3 << 4)) | (1 << 4));
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@ -60,37 +214,27 @@ void main(void)
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oldval = PCON1;
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PCON1 = ((oldval & ~(0xf << 16)) | (0 << 16));
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//Set the piezo pins to output
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oldval = PCON5;
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PCON5 = ((oldval & ~((0xf << 4) | (0xf << 8))) | ((1 << 0) | (1 << 4)));
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PDAT5 &= ~((1 << 1) | (1 << 2)); //should not be needed
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init_qt1106();
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PDAT5 |= (1 << 1); //Toggle piezo +
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// Wait for play to be pressed
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while(!(PDAT1 & (1 << 4)));
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// Wait for play to be released
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while((PDAT1 & (1 << 4)));
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PDAT0 ^= (1 << 2); //Toggle backlight
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//toggle backlight on PLAY
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while(counter<20)
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/* Calibrate the lot */
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read_qt1106(QT_MODE_FREE | QT_MOD_INF | QT_DI | QT_SLD_SLIDER | QT_CAL_WHEEL | QT_CAL_KEYS | QT_RES_4);
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/* Set to maximum sensitivity */
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read_qt1106(QT_CT | (0x00 << 8) );
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while(true)
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{
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// Wait for play to be pressed
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while(!(PDAT1 & (1 << 4)))
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{
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}
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PDAT5 ^= (1 << 1); //Toggle piezo +
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PDAT0 ^= (1 << 2); //Toggle backlight
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counter++;
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// Wait for play to be released
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while(PDAT1 & (1 << 4))
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{
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}
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}
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//toggle a few times to warn that we're done
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for(counter=0;counter<10;counter++)
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{
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volatile int i;
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for(i=0;i<50000;i++);
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PDAT0 ^= (1 << 2); //Toggle backlight
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int slider = read_qt1106(QT_MODE_FREE | QT_MOD_INF | QT_DI | QT_SLD_SLIDER | QT_RES_4);
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bl_debug_int(((slider&0xff)) + 1);
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}
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//power off
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PDAT1&=~(1<<3);
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}
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@ -39,6 +39,7 @@ start:
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newstart:
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msr cpsr_c, #0xd3 /* enter supervisor mode, disable IRQ/FIQ */
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#if 0
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/* set PWRON to 1 */
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ldr r1, =0x3CF00014
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ldr r2, [r1]
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@ -50,7 +51,8 @@ newstart:
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bic r2, r2, #0xf000
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orr r2, r2, #0x1000
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str r2, [r1]
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#endif
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/* Initialise bss section to zero */
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ldr r2, =_edata
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ldr r3, =_end
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