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[Lcdproc] picolcdgfx driver


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  • From: ssmeharg at gmail.com (Scott Meharg)
  • Subject: [Lcdproc] picolcdgfx driver
  • Date: Tue, 7 May 2013 20:17:12 -0500

See replies below.

Attached is the updated driver.

Thanks,
Scott


On Sun, May 5, 2013 at 3:07 PM, Markus Dolze <bsdfan at nurfuerspam.de> wrote:

> On 30.01.2013 01:59, Scott Meharg wrote:
>
> Attached is the patch and file for Mini-box.com's PicoLCDGraphics LCD.
>
> It uses glcd driver with connect type picolcdgfx.
>
>
>
> Hi,
>
> I had a look at this patch this weekend. There are a few things I ask you
> to test:
>
> 1. With recent LCDproc CVS version 'paged' memory layouts are directly
> supported. This means there is no conversion necessary from 'linear' to
> 'paged' memory layout. I had to initialize the backingstore with 0xFF
> so the first call of _blit would clear the ROM graphic from the screen.
> 2. If the backlight is just switchable (on/off) or if it is adjustable
> (from 0 to max). From reading the lcd4linux I believe the latter being
> true. In this case the driver should be updated to make use of
> (on_brightness / off_brightness). The lcd4linux driver did not show a
> an adjustable backlight. But I tested and it does support. Driver has
> been update to make use of (on_brightness / off_brightness).
> 3. The way to calculate the contrast setting looks a little weird. See
> my comment in the updated driver. Weird indeed. What was I thinking.
>
> Attached you find an updated version of the driver. You will need LCDproc
> sources as of today for the patch to apply cleanly.
>
> Regards,
> Markus
>
>
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