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e200v2: make buttons and scrollwheel work. Still ugly as we need to disable interrupts while updating the lcd.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20019 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Dominik Wenger 2009-02-16 19:50:52 +00:00
parent aecc224eca
commit 2871963bee
3 changed files with 237 additions and 70 deletions
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41
firmware/target/arm/as3525/sansa-e200v2/lcd-e200v2.c
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@ -99,13 +99,13 @@ static void ams3525_dbop_init(void)
DBOP_TIMPOL_01 = 0xe167e167;
DBOP_TIMPOL_23 = 0xe167006e;
DBOP_CTRL = 0x41008;
DBOP_CTRL = (1<<18)|(1<<12)|(8<<0); /* short count, 16bit write, read-timing =8 */
GPIOB_AFSEL = 0xfc;
GPIOC_AFSEL = 0xff;
DBOP_TIMPOL_23 = 0x6000e;
DBOP_CTRL = 0x51008;
DBOP_CTRL = (1<<18)|(1<<16)|(1<<12)|(8<<0);/* short count,write enable, 16bit write, read-timing =8 */
DBOP_TIMPOL_01 = 0x6e167;
DBOP_TIMPOL_23 = 0xa167e06f;
@ -365,7 +365,10 @@ void lcd_update(void)
{
if (!display_on)
return;
/* we must disable interrupts because buttondriver also writes to lcd */
disable_irq();
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
/* Set start position and window */
@ -377,7 +380,8 @@ void lcd_update(void)
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
lcd_write_data((unsigned short *)lcd_framebuffer, LCD_WIDTH*LCD_HEIGHT);
enable_irq();
} /* lcd_update */
@ -389,7 +393,7 @@ void lcd_update_rect(int x, int y, int width, int height)
if (!display_on)
return;
if (x + width > LCD_WIDTH)
width = LCD_WIDTH - x; /* Clip right */
if (x < 0)
@ -405,6 +409,9 @@ void lcd_update_rect(int x, int y, int width, int height)
if (y >= ymax)
return; /* nothing left to do */
/* we must disable interrupts because buttondriver also writes to lcd */
disable_irq();
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
/* Set start position and window */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,
@ -423,4 +430,28 @@ void lcd_update_rect(int x, int y, int width, int height)
ptr += LCD_WIDTH;
}
while (++y < ymax);
enable_irq();
} /* lcd_update_rect */
/* writes one read pixel outside the visible area, needed for correct dbop reads */
void lcd_button_support(void)
{
int x=LCD_HEIGHT+1;
int y=LCD_WIDTH+1;
int width=1;
int height=1;
unsigned short data = (0xf<<12);
lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
/* Set start position and window */
lcd_write_reg(R_HORIZ_RAM_ADDR_POS,
((x + width-1) << 8) | x);
lcd_write_reg(R_VERT_RAM_ADDR_POS,
((y_offset + y + height - 1) << 8) | (y_offset + y));
lcd_write_reg(R_RAM_ADDR_SET, ((y + y_offset) << 8) | x);
lcd_write_cmd(R_WRITE_DATA_2_GRAM);
lcd_write_data(&data, width);
}