Saves 100+ bytes (50 of it in iram), saves a bit of power
Internal LCD clock decreased but with added efficiency of drawing routines
loses only around 2 Hz on the scanrate (~75Hz) while fps is slightly increased
Column offsets are now calculated outside the loops saving a few instructions
Passing a LCD_NOP command after lcd_update turns off Data/Cmd# gpio
saving a bit more power
Added a function lcd_write_cmd_triple() that allows 3 commands to be sent at once
when enabled with LCD_USE_FIFO_FOR_COMMANDS it sends them back to back without
checking FIFO status in between or sending to thhe D/C# Gpio.
Makes an assumption about the FIFO being large enough to
accept 3 commands after being emptied which should be the case on the
clipv1, clipv2, clipplus. I have only enabled it for the clip plus
as thats the only device I have to test it on.
On clip+ the SSP clock is now turned off when screen is off
Change-Id: Ib5fd24697bfe4ac8b8ee017361e789e4a7910d21
fuzev2 button_read_device() runs in interrupt context so writes are atomic
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27494 a1c6a512-1295-4272-9138-f99709370657
The new controller framebuffer (different from what is in clipv1/clipv2 and some clip+) has 128 columns, the old has 132 columns and is centered on the screen.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27257 a1c6a512-1295-4272-9138-f99709370657
We can write to DBOP_DOUT in 8 bits mode : bits 7..0 are mapped to the
LCD, not bits 15..12 and 3..0 like on Clipv1
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25455 a1c6a512-1295-4272-9138-f99709370657
