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FS#10120 - fuze/e200v2: poll the wheel more often (every 5ms). This makes the scrollwheel behavior nearly perfect (decent acceleration, no direction changes if you turn to fast).

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20699 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz 2009-04-13 10:28:06 +00:00
parent 65aa187aef
commit e5e41c3a82
3 changed files with 55 additions and 32 deletions
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22
firmware/target/arm/as3525/kernel-as3525.c
View file

@ -24,12 +24,29 @@
#include "panic.h"
#include "timer-target.h"
#ifdef HAVE_SCROLLWHEEL
/* The scrollwheel is polled every 5 ms (the tick tasks only every 10) */
extern void button_read_dbop(void);
static volatile int poll_scrollwheel = 0;
void INT_TIMER2(void)
{
if (!poll_scrollwheel)
call_tick_tasks(); /* Run through the list of tick tasks */
else
button_read_dbop();
poll_scrollwheel ^= 1;
TIMER2_INTCLR = 0; /* clear interrupt */
}
#else
void INT_TIMER2(void)
{
call_tick_tasks(); /* Run through the list of tick tasks */
TIMER2_INTCLR = 0; /* clear interrupt */
}
#endif
void tick_start(unsigned int interval_in_ms)
{
@ -37,6 +54,11 @@ void tick_start(unsigned int interval_in_ms)
int prescale = 1;
int cycles = TIMER_FREQ / 1000 * interval_in_ms;
#ifdef HAVE_SCROLLWHEEL
/* let the timer interrupt twice as often for the scrollwheel polling */
cycles >>= 1;
#endif
while(cycles > 0x10000)
{
phi++;

16
firmware/target/arm/as3525/sansa-e200v2/button-e200v2.c
View file

@ -60,7 +60,7 @@ bool button_hold(void)
return hold_button;
}
void clickwheel(unsigned int wheel_value)
static void scrollwheel(short dbop_din)
{
static const unsigned char wheel_tbl[2][4] =
{
@ -75,6 +75,10 @@ void clickwheel(unsigned int wheel_value)
/* did the wheel value change? */
unsigned int btn = BUTTON_NONE;
unsigned wheel_value = dbop_din & (1<<13|1<<14);
wheel_value >>= 13;
if (old_wheel_value == wheel_tbl[0][wheel_value])
btn = BUTTON_SCROLL_FWD;
else if (old_wheel_value == wheel_tbl[1][wheel_value])
@ -178,7 +182,7 @@ void clickwheel(unsigned int wheel_value)
old_wheel_value = wheel_value;
}
static short read_dbop(void)
short button_read_dbop(void)
{
/*write a red pixel */
if (!lcd_button_support())
@ -186,7 +190,7 @@ static short read_dbop(void)
/* Set up dbop for input */
while (!(DBOP_STAT & (1<<10))); /* Wait for fifo to empty */
DBOP_CTRL |= (1<<19);
DBOP_CTRL |= (1<<19); /* Tri-state DBOP on read cycle */
DBOP_CTRL &= ~(1<<16); /* disable output (1:write enabled) */
DBOP_TIMPOL_01 = 0xe167e167; /* Set Timing & Polarity regs 0 & 1 */
DBOP_TIMPOL_23 = 0xe167006e; /* Set Timing & Polarity regs 2 & 3 */
@ -200,8 +204,9 @@ static short read_dbop(void)
DBOP_TIMPOL_01 = 0x6e167; /* Set Timing & Polarity regs 0 & 1 */
DBOP_TIMPOL_23 = 0xa167e06f; /* Set Timing & Polarity regs 2 & 3 */
DBOP_CTRL |= (1<<16); /* Enable output (0:write disable) */
DBOP_CTRL &= ~(1<<19);
DBOP_CTRL &= ~(1<<19); /* Tri-state when no active write */
scrollwheel(_dbop_din);
return _dbop_din;
}
@ -217,7 +222,7 @@ int button_read_device(void)
{
int btn = BUTTON_NONE;
/* read buttons from dbop */
short dbop = read_dbop();
short dbop = button_read_dbop();
/* hold button */
if(dbop & (1<<12))
@ -239,7 +244,6 @@ int button_read_device(void)
/* handle wheel */
int wheel_value = dbop & (1<<13|1<<14);
wheel_value >>= 13;
clickwheel(wheel_value);
/* Set afsel, so that we can read our buttons */
GPIOC_AFSEL &= ~(1<<2|1<<3|1<<4|1<<5|1<<6);

49
firmware/target/arm/as3525/sansa-fuze/button-fuze.c
View file

@ -49,7 +49,7 @@ void button_init_device(void)
}
#if !defined(BOOTLOADER) && defined(HAVE_SCROLLWHEEL)
static void scrollwheel(short dbop)
static void scrollwheel(short dbop_din)
{
/* current wheel values, parsed from dbop and the resulting button */
unsigned wheel_value = 0;
@ -76,7 +76,7 @@ static void scrollwheel(short dbop)
{ 2, 0, 3, 1 }, /* Clockwise rotation */
{ 1, 3, 0, 2 }, /* Counter-clockwise */
};
wheel_value = dbop & (1<<13|1<<14);
wheel_value = dbop_din & (1<<13|1<<14);
wheel_value >>= 13;
if (old_wheel_value == wheel_tbl[0][wheel_value])
@ -90,7 +90,7 @@ static void scrollwheel(short dbop)
{
/* direction reversals nullify repeats */
wheel_repeat = btn;
repeat = 0;
repeat = counter = 0;
}
if (btn != BUTTON_NONE)
{
@ -139,7 +139,7 @@ static void button_delay(void)
while(i--);
}
static short button_dbop(void)
short button_read_dbop(void)
{
/* skip home and power reading if lcd_button_support was blocked,
* since the dbop bit 15 is invalid then, and use the old value instead */
@ -150,27 +150,24 @@ static short button_dbop(void)
old_home_power = (_dbop_din & (1<<15|1<<8));
}
/* Wait for fifo to empty */
while ((DBOP_STAT & (1<<10)) == 0);
DBOP_CTRL |= (1<<19);
DBOP_CTRL &= ~(1<<16); /* disable output */
DBOP_TIMPOL_01 = 0xe167e167;
DBOP_TIMPOL_23 = 0xe167006e;
/* Set up dbop for input */
while (!(DBOP_STAT & (1<<10))); /* Wait for fifo to empty */
DBOP_CTRL |= (1<<19); /* Tri-state DBOP on read cycle */
DBOP_CTRL &= ~(1<<16); /* disable output (1:write enabled) */
DBOP_TIMPOL_01 = 0xe167e167; /* Set Timing & Polarity regs 0 & 1 */
DBOP_TIMPOL_23 = 0xe167006e; /* Set Timing & Polarity regs 2 & 3 */
button_delay();
DBOP_CTRL |= (1<<15); /* start read */
while (!(DBOP_STAT & (1<<16))); /* wait for valid data */
DBOP_CTRL |= (1<<15); /* start read */
while((DBOP_STAT & (1<<16)) == 0); /* wait for valid data */
_dbop_din = DBOP_DIN; /* Read dbop data*/
_dbop_din = DBOP_DIN; /* now read */
DBOP_TIMPOL_01 = 0x6e167;
DBOP_TIMPOL_23 = 0xa167e06f;
DBOP_CTRL |= (1<<16);
DBOP_CTRL &= ~(1<<19);
/* Reset dbop for output */
DBOP_TIMPOL_01 = 0x6e167; /* Set Timing & Polarity regs 0 & 1 */
DBOP_TIMPOL_23 = 0xa167e06f; /* Set Timing & Polarity regs 2 & 3 */
DBOP_CTRL |= (1<<16); /* Enable output (0:write disable) */
DBOP_CTRL &= ~(1<<19); /* Tri-state when no active write */
/* write back old values if blocked */
if (old_home_power != -20)
@ -178,6 +175,10 @@ static short button_dbop(void)
_dbop_din |= old_home_power & 1<<15;
_dbop_din &= 0xfeff|(old_home_power & 1<<8);
}
#if defined(HAVE_SCROLLWHEEL) && !defined(BOOTLOADER)
/* read wheel on bit 13 & 14, but sent to the button queue seperately */
scrollwheel(_dbop_din);
#endif
return _dbop_din;
}
@ -233,7 +234,7 @@ static int button_gpio(void)
int button_read_device(void)
{
int btn = BUTTON_NONE;
short dbop = button_dbop();
short dbop = button_read_dbop();
static unsigned power_counter = 0;
/* hold button */
if(dbop & (1<<12))
@ -244,10 +245,6 @@ int button_read_device(void)
else
{
hold_button = false;
#if defined(HAVE_SCROLLWHEEL) && !defined(BOOTLOADER)
/* read wheel on bit 13 & 14, but sent to the button queue seperately */
scrollwheel(dbop);
#endif
/* read power on bit 8, but not if hold button was just released, since
* you basically always hit power due to the slider mechanism after releasing
* hold (wait ~1 sec) */