diff options
Diffstat (limited to 'firmware/target/arm/tms320dm320')
| -rw-r--r-- | firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c | 88 |
1 files changed, 67 insertions, 21 deletions
diff --git a/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c b/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c index 317a764d3c..0551389f27 100644 --- a/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c +++ b/firmware/target/arm/tms320dm320/mrobe-500/lcd-mr500.c @@ -76,7 +76,7 @@ void lcd_sleep() IO_VID_ENC_VMOD &= ~(0x01); /* Disabling the LCD saves ~50mA */ - IO_GIO_BITCLR2=1<<4; + IO_GIO_BITCLR2=1<<4; /* pin 36 */ } } @@ -103,6 +103,30 @@ void lcd_awake(void) } #endif +void lcd_enable_composite(bool enable) +{ + /* Pin 39 appears to be related to the composite output */ + /* 39: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(39, false, false, false, false, false, 0x00); + + short vidtemp = (IO_VID_ENC_VMOD & 0x7E8); + + if(enable) + { + IO_GIO_BITSET2 = 0x80; + vidtemp |= 0x0003; + } + else + { + IO_GIO_BITCLR2 = 0x80; + vidtemp |= 0x2015; + IO_VID_ENC_DCLKCTL = 0x0800; + IO_VID_ENC_DCLKPTN0 = 0x0001; + } + + IO_VID_ENC_VMOD = vidtemp; +} + /* Note this is expecting a screen size of 480x640 or 240x320, other screen * sizes need to be considered for fudge factors */ @@ -115,14 +139,48 @@ void lcd_init_device(void) { unsigned int addr; - /* Pin 32 controls the LED above the LCD */ - IO_GIO_DIR2 &= ~(0x01); /* output */ - IO_GIO_INV2 &= ~(0x01); /* non-inverted */ - IO_GIO_FSEL2 &= ~(0x03<<14); /* normal pins */ + /* LCD related pins: + * 32 - LED above LCD + * 33 - ?? + * 34 - R2 for 18 bit output + * 35 - Resolution (MO?) + * 36 - LCD power (INI?) + * 37 - Backlight and LCD power + * 38 - B2 for 18 bit output + */ + + /* Setup main LCD pins */ + /* 32: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(32, false, false, false, false, false, 0x00); + IO_GIO_BITCLR2 = 1; /* Turn the LED off */ + + /* 33: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(33, false, false, false, false, false, 0x00); + /* To-do: figure out value from OF */ + + /* 34: output, non-inverted, no-irq, falling edge, no-chat, R2 */ + dm320_set_io(34, false, false, false, false, false, 0x02); - /* Turn the LED off */ - IO_GIO_BITCLR2 = 1; + /* 35: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(35, false, false, false, false, false, 0x00); +#if LCD_NATIVE_HEIGHT > 320 + IO_GIO_BITSET2 = 1<<3; /* Set LCD resolution to VGA */ +#else + IO_GIO_BITCLR2 = 1<<3; /* Set LCD resolution to QVGA */ +#endif + + /* 36: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(36, false, false, false, false, false, 0x00); + IO_GIO_BITSET2 = 0x10; /* LCD on */ + /* 37: output, non-inverted, no-irq, falling edge, no-chat, normal */ + dm320_set_io(37, false, false, false, false, false, 0x00); + IO_GIO_BITCLR2 = (1 << 5); /* output low (backlight/lcd on) */ + + /* 38: output, non-inverted, no-irq, falling edge, no-chat, B2 */ + dm320_set_io(38, false, false, false, false, false, 0x02); + + /* Clear the Frame */ memset16(FRAME, 0x0000, LCD_WIDTH*LCD_HEIGHT); @@ -158,8 +216,6 @@ void lcd_init_device(void) IO_VID_ENC_ACCTL = 0x0000; IO_VID_ENC_PWMP = 0x0000; IO_VID_ENC_PWMW = 0x0000; - - IO_VID_ENC_DCLKPTN0 = 0x0001; /* Setup the display */ IO_OSD_MODE = 0x00ff; @@ -230,19 +286,9 @@ void lcd_init_device(void) IO_OSD_VIDWIN0XL = LCD_NATIVE_WIDTH; IO_OSD_VIDWIN0YL = LCD_NATIVE_HEIGHT; - /* Set pin 36 and 35 (LCD POWER and LCD RESOLUTION) to an output */ - IO_GIO_DIR2 &= ~(3<<3); - -#if LCD_NATIVE_HEIGHT > 320 - /* Set LCD resolution to VGA */ - IO_GIO_BITSET2 = 1<<3; -#else - /* Set LCD resolution to QVGA */ - IO_GIO_BITCLR2 = 1<<3; -#endif - IO_OSD_OSDWINMD0 |= 0x01; - IO_VID_ENC_VMOD |= 0x01; + + lcd_enable_composite(false); } #if defined(HAVE_LCD_MODES) |