Commit Graph

4748 Commits

Author SHA1 Message Date
Gregory Nutt
bd2d83c656 TM4C129X: Simplify be removing unnecessary temporary variable 2014-12-22 11:53:31 -06:00
Gregory Nutt
3b863966fe TM4C129X: First cut at new Tiva clock configuration logic 2014-12-22 11:45:10 -06:00
Gregory Nutt
5184e4dade TM4C129X: A small step toward understanding new Tiva clocking 2014-12-22 09:30:41 -06:00
Gregory Nutt
7b6d0391ab Tiva: Rename TIVA_CRC_BASE to TIVA_CCM_BASE 2014-12-21 17:44:11 -06:00
Gregory Nutt
488b02ff6c Tiva: Add support for I2C6-9 2014-12-21 17:20:16 -06:00
Gregory Nutt
f26384c386 Tiva SSI and board configurations: hange negative Tiva logic CONFIG_SSIx_DISABLE to positive logic CONFIG_TIVA_SSIx. Add support for SSI2 and SSI3 2014-12-21 15:23:37 -06:00
Gregory Nutt
3ea03b9806 Improved comments 2014-12-21 14:09:04 -06:00
Gregory Nutt
f4543de408 TM4C129X: Increated power/clocking macros into I2C driver 2014-12-21 13:02:12 -06:00
Gregory Nutt
20986de89e TM4C129X: Add macros to enable/disable peripheral power 2014-12-21 11:40:39 -06:00
Gregory Nutt
9857b59e79 Tiva SSI: Use portable macros to enable peripheral clocking 2014-12-21 11:16:21 -06:00
Gregory Nutt
8ed83ac3a5 Tiva: More run mode clock enable macros 2014-12-21 11:02:56 -06:00
Gregory Nutt
d701532141 TM4C129X: Framework for new Tiva clocking logic (details not yet implemented) 2014-12-21 10:14:40 -06:00
Gregory Nutt
36acfdb26f Tiva: Completes first cut at system control header file 2014-12-20 12:05:22 -06:00
Gregory Nutt
22b4def56e Tiva: More TM4C129 system control register definitions 2014-12-20 11:10:10 -06:00
Gregory Nutt
e14608b272 Tiva: More TM4C129 system control register definitions 2014-12-20 09:59:21 -06:00
Gregory Nutt
b49f8b3baf Tiva: Add a configuration setting to better distinguish TM4C123 and 129 families. Reanem tm4c_syscontrol.h to tm4c123_syscontrol.h; rename tm4c129x_syscontrol.h to tm4c129_syscontrol.h 2014-12-20 08:38:11 -06:00
Gregory Nutt
ffae2cb3d7 Tiva: Updates to system control regiser definitions 2014-12-20 08:22:17 -06:00
Gregory Nutt
16a302e732 STM32 LTDC: Move ltdc.h from include/nuttx/video to arch/arm/include/stm32; Trivial updates after general review 2014-12-19 14:52:17 -06:00
Gregory Nutt
44d72c6545 stm32: Add configuration option for ltdc
This adds the following ltdc configuration options:
- dither support
- cmap support, is this the right place for CONFIG_FB_CMAP?
- support for extended ltdc interface

Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:58:39 -06:00
Gregory Nutt
193edfb7be stm32: implements ltdc frambuffer and support for ltdc layer operation
This implements the framebuffer support for the generic nuttx framebuffer
interface, (see nuttx/video/fb.h)

This also implements the interface to perform hardware accelerated layer
operation by the ltdc controller and dma2d controller later (see
nuttx/video/ltdc.h).

The following methods are supported by the ltdc interface:

- getvideoinfo
  Get video information of the layer

- getplaneinfo
  Get plane information of the layer

- getlid
  Handle specific layer identifier. This allows to detect to current layer
  state (e.g. important for layer flipping)

- setclut
  Set the layer color lookup table. Up to 256 color entries supported.

- getclut
  Get the layer color lookup table

- setcolor
  Set the default layer color. In the context of the ltdc layer this means set
  the default color outside the active area or if the layer is disabled.

- getcolor
  Get the default layer color

- setcolorkey
  Set the layer colorkey (chromakey). Colorkey is enabled by blendmode
  LTDC_BLEND_COLORKEY

- getcolorkey
  Get the layer colorkey

- setalpha
  Set the constant alpha value. If blend mode LTDC_BLEND_SRCPIXELALPHA or
  LTDC_BLEND_DESTPIXELALPHA is defined than the blended color is calculated
  by the formel:
    Cdest = Pixelalpha * Constalpha * Csrc.
  Otherwise:
    Cest = Constalpha * Csrc

- getalpha
  get the alpha value

- setblendmode
  Set the layer blendmode.
  Supported blendmodes:
    non blendmode (do not perform blend operation independent on the layers
                   alpha and colorkey)
    alpha          alpha blending (transparency)
    destpixelalpha use pixel alpha value for the top layer (Layer2)
    srcpixelalpha  use pixel alpha value for the subjacent layer (Layer1)
    colorkey       enable colorkey

- getblendmode
  Get the layer blendmode

- setarea
  Set the active layer area, the visible rectangle inside the whole layer.
  This also allows to change the position of the whole layer which is visible in
  the selected area independent on the area position.

- getarea
  Get the active layer area

- update
  Reload the layer shadow register and make changes visible. Also supports
  layer flipping.

Note! Dithering and background color are static parameter and can only changed
at build time.

Implementation details:

The implementation of ltdc interface was inspired by SDL and DirectFB.
All layer settings are shadowed before they become active (except setclut).
They are still inactive until the layer is updated. This is done by the update
method. Should clut only active after an update or not? Clut is used for drawing
while the other settings usually used for blend or blit operations. So i think
this should be the right way.

The implementation of ltdc interface was inspired by SDL and DirectFB.
All layer settings shadowed before they become active (except clut).
They are still inactive until the layer is updated. This is done by the update
call. Should clut only activated after an update or not? Clut is used for draw
operation while the other settings usually used for blend or blit operations.
So i think this should be the right way.

Deviations from the ltdc hardware implementation:

- Shadow register update of both layer (Layer1 or Layer2) is independent as long
  LTDC_UPDATE_SIM is not set. This flag allows to update both layer simultaneous.
  Otherwise only the desired layer is updated.

Layer operation:

Keep in mind, both layer are allways active (of course if both enabled by the
configuration). First the Layer 1 is blended with the background color and the
result is blended with the Layer2. To avoid blend effects, set the Layer2 in non
blend mode. This is equal to blend with alpha = 255. Enable blending of Layer2
with the background color by enable blending of Layer1 and disable the opacity
by setting the alpha value to 0.

Layer flip:

A layer flip usual mean swapping two framebuffer. So the current inactive buffer
can refreshed with data while the active framebuffer is visible. A flip
operation changes the inactive layer to the active one and vice versa.

The ltdc implementation supports layer flip. This can be done by the update call
and the flag LTDC_UPDATE_FLIP. In this case ltdc makes the inactive layer
invisible. In detail, the inactive layer is disabled and the blendmode reset.
Detection of the current layer state (e.g. active or inactive) is supported
by the getlid method combined with one of the LTDC_LAYER_* flags.
Maybe an additional method "flip" for flip operation should be added to the ltdc
interface? But this make no sence from my view if the layer is a non LTDC layer,
e.g. playing with dma2d only.

Supported and tested nuttx pixel formats:

Single Layer without LTDC interface support:
- FB_FMT_RGB8 (cmap support required)
- FB_FMT_RGB16_565
- FB_FMT_RGB24

Single Layer with LTDC interface support:
- FB_FMT_RGB8 (cmap support required)
- FB_FMT_RGB16_565
- FB_FMT_RGB24

Dual Layer with LTDC interface support:
- FB_FMT_RGB8 (cmap support required)
- FB_FMT_RGB16_565
- FB_FMT_RGB24

Why is FB_FMT_ARGB8888 missing?

Changes:
- Remove unused register debug method.

Todo:
- Add support for backlight, currently not neccessary

Did i forgot something? Take a look in the ltdc example or the interface
description (see nuttx/include/video/ltdc.h).

Thanks to Ken for the base layout. ;)

Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:48:53 -06:00
Gregory Nutt
83d87e5ef7 stm32: Add infrastructure for dma2d support
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:41:08 -06:00
Gregory Nutt
060a61dfac stm32: Add common stm32 layer description. This defines a common layer description for the ltdc and dma2d controller.
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:37:08 -06:00
Gregory Nutt
df31cf1db8 stm32: configure PLLSAI clock to enable ltdc register access
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:30:58 -06:00
Gregory Nutt
3385fe60cf stm32: Add missing clut register definition
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:28:42 -06:00
Gregory Nutt
e9074c8a44 stm32: rename CFBLR register name to the name used in the reference manual
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:26:04 -06:00
Gregory Nutt
f181dcef29 stm32: rename PLLSAI register name to this one in the reference manual
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-19 13:21:39 -06:00
Gregory Nutt
58e4e69656 TM4C129X: Add custom system control header file (incomplete) 2014-12-19 12:12:52 -06:00
Gregory Nutt
da700ddc06 Tiva: Fix configuration logic for IRQ interrupts. The various parts support varying numbers of GPIO blocks and with varying capabilities to support interrupts on the pins of different GPIO blocks 2014-12-18 15:33:52 -06:00
Gregory Nutt
aabd4c59a3 Tiva: Change negative logic CONFIG_TIVA_DISABLE_GPIOx_IRQS to positive logic CONFIG_TIVA_GPIOx_IRQS 2014-12-18 15:19:16 -06:00
Gregory Nutt
83c56151ab Tiva: Add GPIO interrupt support for the TMS4C129X 2014-12-18 11:52:06 -06:00
Gregory Nutt
a719e75851 DK-TM4C129X: Fixes to get clean build. Logic is still not complete, however 2014-12-18 08:24:24 -06:00
Gregory Nutt
05d7520461 TM4C129X: Add pin multiplexing 2014-12-17 11:55:45 -06:00
Gregory Nutt
327a554d0b Tiva TM4C129X: Fix some errors in memory map 2014-12-17 09:42:37 -06:00
Gregory Nutt
14b987dbfa Add memory map for the TM4C129X 2014-12-17 09:40:56 -06:00
Gregory Nutt
aa724ea75b Add interrupt definitions for the TM4C129X 2014-12-17 08:19:23 -06:00
Gregory Nutt
1410a650e0 Tiva: Better distinguish features of the TM4C1294xx and the TM4C129Xxx 2014-12-16 18:02:59 -06:00
Gregory Nutt
29d23ae626 Remove packaging indications for TM4C129 configuration variables 2014-12-16 16:22:52 -06:00
Gregory Nutt
188e092398 Add TM4C129XNCZAD and TM4C1294NCPDT to the Tiva configuration system 2014-12-16 16:02:21 -06:00
Gregory Nutt
f284c5cab2 Unify sensor debug. ADX driver was using input debug; LM75 and QENCODE that their own custom debug. Now all use CONFIG_DEBUG_SENSOR, sndbg() 2014-12-16 09:54:32 -06:00
Gregory Nutt
2b65239466 Various fixes to traveler joystick input logic and to simulated joystick device 2014-12-14 12:23:19 -06:00
Gregory Nutt
f16d78b52c Mouse simulatin should receive mouse positional input even if no button is pressed 2014-12-14 11:14:13 -06:00
Gregory Nutt
82f9391763 SIM: Several fixes to the simulated joystick driver. Still buggy 2014-12-14 11:11:04 -06:00
Gregory Nutt
ca3977e91e SIM: Add an X11 mouse-based simulation of an analog joystick device 2014-12-14 10:19:07 -06:00
Gregory Nutt
9268fcc8ba Include sched.h to avoid warning 2014-12-14 07:46:46 -06:00
Gregory Nutt
da8b040984 More changes associated with GPIO interrupt for the KL architecture from Alan Carvalho de Assis 2014-12-13 17:30:25 -06:00
Gregory Nutt
810fcd297e Add GPIO interrupt capability for the KL architecture. The patch is almost the same as kinetis_pinirq.c, just minor modifications and rename kl_pinirq to kl_gpioirq to make it more generic to developers. From Alan Carvalho de Assis 2014-12-13 17:27:06 -06:00
Gregory Nutt
cf1caa48ce SIM: Fix simulated console... it needs to return immediately when even one byte is read 2014-12-13 13:04:02 -06:00
Gregory Nutt
a574a3cc8a STM32 LTDC: Fix a typo in conditional compilation 2014-12-13 07:45:42 -06:00
Gregory Nutt
f8592281a7 STM32 OTG HS DEV (in FS mode): Disable ULPI clock enable in RCC AHB1 Register. If Both ULPI and the FS clock enable bits are set in FS mode, then the ARM never awakens froom WFI due to a chip issue. From Ken Pettit 2014-12-13 07:44:13 -06:00
Gregory Nutt
c653ff5ce4 Tiva I2C: Don't try to ACK and STOP on the same byte. Improve logic that suppresses STOP on a repeated start 2014-12-12 12:13:31 -06:00