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Sansa c200v2 : support more hardware

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Don't read the buttons from GPIOC but from DBOP_DIN (all directional buttons + select)
Still missing hold, rec, volume up and volume down
Read microsd
Tuner is a si4700 but seems to suffer from the same problem than e200v2
Sound works

TODO: missing buttons, lcd yuv, test lcd performance (the c200v1 lcd performance has decreased since r21321 : needs to be investigated)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21330 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Rafaël Carré 2009-06-18 15:05:59 +00:00
parent d768107571
commit 0181bc42c9
4 changed files with 34 additions and 57 deletions
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54
firmware/target/arm/as3525/sansa-c200v2/button-c200v2.c
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@ -36,6 +36,12 @@ static bool hold_button = false;
static bool hold_button_old = false;
#endif
/* for the debug menu */
unsigned short button_dbop_data(void)
{
return _dbop_din;
}
void button_init_device(void)
{
GPIOA_DIR &= ~(1<<3);
@ -54,9 +60,6 @@ static void button_read_dbop(void)
DBOP_TIMPOL_01 = 0xe167e167; /* Set Timing & Polarity regs 0 & 1 */
DBOP_TIMPOL_23 = 0xe167006e; /* Set Timing & Polarity regs 2 & 3 */
int i = 50;
while(i--) asm volatile ("nop\n");
DBOP_CTRL |= (1<<15); /* start read */
while (!(DBOP_STAT & (1<<16))); /* wait for valid data */
@ -74,52 +77,25 @@ static void button_read_dbop(void)
*/
int button_read_device(void)
{
int delay;
int dir_save_c = 0;
int afsel_save_c = 0;
int btn = BUTTON_NONE;
/* Save the current direction and afsel */
dir_save_c = GPIOC_DIR;
afsel_save_c = GPIOC_AFSEL;
GPIOC_AFSEL &= ~(1<<6|1<<5|1<<4|1<<3);
GPIOC_DIR |= (1<<6|1<<5|1<<4|1<<3);
/* These should not be needed with button event interupts */
/* they are necessary now to clear out lcd data */
GPIOC_PIN(6) = (1<<6);
GPIOC_PIN(5) = (1<<5);
GPIOC_PIN(4) = (1<<4);
GPIOC_PIN(3) = (1<<3);
GPIOC_DIR &= ~(1<<6|1<<5|1<<4|1<<3);
delay = 100;
while(delay--)
asm volatile("nop\n");
/* direct GPIO connections */
if (GPIOA_PIN(3))
btn |= BUTTON_POWER;
if (!GPIOC_PIN(6))
btn |= BUTTON_RIGHT;
if (!GPIOC_PIN(5))
btn |= BUTTON_UP;
if (!GPIOC_PIN(4))
btn |= BUTTON_SELECT;
if (!GPIOC_PIN(3))
btn |= BUTTON_DOWN;
/* return to settings needed for lcd */
GPIOC_DIR = dir_save_c;
GPIOC_AFSEL = afsel_save_c;
if(lcd_button_support())
button_read_dbop();
if(_dbop_din & (1<<6))
if(!(_dbop_din & (1<<2)))
btn |= BUTTON_LEFT;
if(!(_dbop_din & (1<<3)))
btn |= BUTTON_DOWN;
if(!(_dbop_din & (1<<4)))
btn |= BUTTON_SELECT;
if(!(_dbop_din & (1<<5)))
btn |= BUTTON_UP;
if(!(_dbop_din & (1<<6)))
btn |= BUTTON_RIGHT;
#ifndef BOOTLOADER
/* light handling */