From 3e7a09cb0dee0ee04b5c77f427bf89d990ec8d0b Mon Sep 17 00:00:00 2001 From: Dana Conrad Date: Sat, 26 Jun 2021 12:07:11 -0500 Subject: New Port: Eros Q Native What works: - LCD: 16-bit RGB565 - all buttons, including scrollwheel - SD Card - Battery level and charging/not charging status - USB - audio - sample rate switching - HP / LO detect, with "safe" fixed LO volume - LO volume will only be put to user-defined max volume if headphones are not present. - rtc - Plugins build, tried a couple and they seem OK - Bootloader, installable to nand via usbboot What doesn't work: - Dual Boot - power on/off has intermittent, low volume audio click (sometimes it's completely silent, sometimes there's a click) - Audio uses 16-bit volume scaling, so clicking/popping is pretty bad at lower volumes - need 32 bit volume scaling, 24 bit I2S data - USB HID keys not yet defined - no jztool support Unknowns: - Stereo Switch pins: Direction select, AC_DC (probably not even hooked up) - What is the actual purpose of the Stereo Swtich? - How does the bluetooth module connect? "Someday" stuff: - get LCD working at higher bit depth - Bluetooth Change-Id: I70dda8fc092c6e3f4352f2245e4164193f803c33 --- firmware/target/mips/ingenic_x1000/lcd-x1000.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'firmware/target/mips/ingenic_x1000/lcd-x1000.c') diff --git a/firmware/target/mips/ingenic_x1000/lcd-x1000.c b/firmware/target/mips/ingenic_x1000/lcd-x1000.c index 193ff082e0..b66359a598 100644 --- a/firmware/target/mips/ingenic_x1000/lcd-x1000.c +++ b/firmware/target/mips/ingenic_x1000/lcd-x1000.c @@ -457,6 +457,10 @@ void lcd_update(void) jz_writef(LCD_MCTRL, DMA_START(1), DMA_MODE(1)); } +/* We can do partial updates even though the DMA doesn't seem to handle it well, + * due to the fact that this is actually putting it into a buffer, and then + * it gets transferred via DMA to a secondary buffer, which gets transferred in + * its entirety to the LCD through a different DMA process. */ void lcd_update_rect(int x, int y, int width, int height) { /* Clamp the coordinates */ -- cgit v1.2.3