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Rev 841 Rev 968
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#include "button.h"
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#include "button.h"
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#include "thread.h"
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#include "thread.h"
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#include "timer.h"
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#include "timer.h"
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#include "s5l8702.h"
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#include "s5l8702.h"
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#include "contextswitch.h"
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#include "contextswitch.h"
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#ifdef TARGET_ipodclassic
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#include "fat.h"
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#include "storage_ata.h"
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#include "../ipodclassic/storage_ata-target.h"
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#endif
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static struct wakeup clickwheel_wakeup IBSS_ATTR;
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static struct wakeup clickwheel_wakeup IBSS_ATTR;
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static struct wakeup clickwheel_init_wakeup INITDATA_ATTR;
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static volatile uint32_t clickwheel_packet IBSS_ATTR;
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static volatile uint32_t clickwheel_packet IBSS_ATTR;
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static struct scheduler_thread clickwheel_thread_handle;
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static struct scheduler_thread clickwheel_thread_handle;
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static uint32_t clickwheel_stack[0x100] STACK_ATTR;
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static uint32_t clickwheel_stack[0x100] STACK_ATTR;
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static bool wheel_initialized IBSS_ATTR;
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static bool oldtouched IBSS_ATTR;
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static bool oldtouched IBSS_ATTR;
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static int oldpos IBSS_ATTR;
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static int oldpos IBSS_ATTR;
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static int oldbuttons IBSS_ATTR;
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static int oldbuttons IBSS_ATTR;
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static uint32_t lastpacket IBSS_ATTR;
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static int lastpacket IBSS_ATTR;
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static int packets IBSS_ATTR;
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static int packets IBSS_ATTR;
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static int collect IBSS_ATTR;
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static int collect IBSS_ATTR;
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static int lastdiff IBSS_ATTR;
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static int lastdiff IBSS_ATTR;
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        DEBUGF("Got clickwheel packet");
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        DEBUGF("Got clickwheel packet");
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        uint32_t mode = enter_critical_section();
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        uint32_t mode = enter_critical_section();
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        uint32_t data = clickwheel_packet;
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        uint32_t data = clickwheel_packet;
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        leave_critical_section(mode);
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        leave_critical_section(mode);
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        DEBUGF("Acquired clickwheel packet: %08X", data);
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        DEBUGF("Acquired clickwheel packet: %08X", data);
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        int newbuttons = (data >> 8) & 0x1f;
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        if ((data & 0x800000FF) == 0x8000001A)
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        if ((data & 0x800000FF) == 0x8000001A)
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        {
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        {
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            int newbuttons = (data >> 8) & 0x1f;
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            int newpos = (data >> 16) & 0xff;
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            int newpos = (data >> 16) & 0xff;
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            bool newtouched = (data & 0x40000000) ? true : false;
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            bool newtouched = (data & 0x40000000) ? true : false;
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            DEBUGF("This is a change packet, button state: %02X, position: %02d, touched: %d",
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            DEBUGF("This is a change packet, button state: %02X, position: %02d, touched: %d",
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                   newbuttons, newpos, newtouched);
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                   newbuttons, newpos, newtouched);
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            int buttonschanged = oldbuttons ^ newbuttons;
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            int buttonschanged = oldbuttons ^ newbuttons;
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            DEBUGF("Changed buttons: %02X", buttonschanged);
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            DEBUGF("Changed buttons: %02X", buttonschanged);
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            for (i = 0; i < 5; i++)
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            for (i = 0; i < 5; i++)
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                if ((buttonschanged >> i) & 1)
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                if ((buttonschanged >> i) & 1)
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                {
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                {
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                collect = 0;
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                collect = 0;
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                packets = 0;
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                packets = 0;
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                lastdiff = 0;
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                lastdiff = 0;
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            }
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            }
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            oldbuttons = newbuttons;
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            oldpos = newpos;
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            oldpos = newpos;
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            oldtouched = newtouched;
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            oldtouched = newtouched;
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            lastpacket = USEC_TIMER;
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            lastpacket = USEC_TIMER;
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        }
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        }
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        else if ((data & 0x8000FFFF) == 0x8000023A)
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        else if ((data & 0x8000FFFF) == 0x8000023A)
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        {
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        {
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            if (data & 0x1F0000) oldbuttons = (data >> 16) & 0x1F;
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            if (data & 0x1F0000) newbuttons = (data >> 16) & 0x1F;
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            DEBUGF("This is an init packet, button state: %02X", oldbuttons);
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            DEBUGF("This is an init packet, button state: %02X", newbuttons);
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            if (!wheel_initialized)
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            {
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                wheel_initialized = true;
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                wakeup_signal(&clickwheel_init_wakeup);
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            }
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        }
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        }
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        #ifdef TARGET_ipodclassic
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            if (newbuttons == 0x11 && oldbuttons != 0x11)
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            {
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                ata_lock_exclusive(TIMEOUT_BLOCK);
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                flush_fat(true);
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                ata_sleepnow();
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            }
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            else if (newbuttons != 0x11 && oldbuttons == 0x11)
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                ata_unlock_exclusive();
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#endif
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        oldbuttons = newbuttons;
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    }
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    }
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}
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}
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void clickwheel_init()
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int clickwheel_init()
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{
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{
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    wakeup_init(&clickwheel_wakeup);
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    wakeup_init(&clickwheel_wakeup);
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    wakeup_init(&clickwheel_init_wakeup);
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    wheel_initialized = false;
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    oldtouched = false;
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    oldtouched = false;
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    oldbuttons = 0;
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    oldbuttons = 0;
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    lastpacket = 0;
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    lastpacket = 0;
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    collect = 0;
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    collect = 0;
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    lastdiff = 0;
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    lastdiff = 0;
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    WHEELTX = 0x8000023A;
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    WHEELTX = 0x8000023A;
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    WHEEL04 |= 1;
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    WHEEL04 |= 1;
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    thread_create(&clickwheel_thread_handle, "Clickwheel dispatcher", clickwheel_thread,
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    thread_create(&clickwheel_thread_handle, "Clickwheel dispatcher", clickwheel_thread,
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                  clickwheel_stack, sizeof(clickwheel_stack), OS_THREAD, 200, true,
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                  clickwheel_stack, sizeof(clickwheel_stack), OS_THREAD, 200, true,
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                  NULL, NULL, NULL, NULL);
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                  NULL, NULL, NULL, NULL);
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    wakeup_wait(&clickwheel_init_wakeup, 100000);
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 181 
    if (!wheel_initialized) RET_ERR(0);
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 182 
    return 0;
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}
 183 
}
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 184 
 
155 
void INT_WHEEL(void) ICODE_ATTR;
 185 
void INT_WHEEL(void) ICODE_ATTR;
156 
void INT_WHEEL()
 186 
void INT_WHEEL()
157 
{
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{