Commit Graph

4877 Commits

Author SHA1 Message Date
Gregory Nutt
cc038a61f6 Tiva Ethernet: Integrate use of workqueue so the network processing is not done at the interrupt level 2014-12-31 13:03:00 -06:00
Gregory Nutt
b81661c258 Tiva Ethernet: Add basic clock/power controls for Ethernet and internal PHY 2014-12-31 11:40:01 -06:00
Gregory Nutt
903e7f5d2b Tiva Ethernet: First cut at TM4C129X Ethernet driver. Initial commit is basically just the STM32 Ethernet driver with modifications for a clean compilation in the Tiva environment 2014-12-31 11:34:24 -06:00
Gregory Nutt
a96c91db1e Tiva Ethernet: Minor naming update for compatibility 2014-12-31 09:39:00 -06:00
Gregory Nutt
7c07766468 Tiva Ethernet: Add DMA descriptor definitions 2014-12-31 07:32:11 -06:00
Gregory Nutt
119e957472 Mostly cosmetic 2014-12-30 17:00:15 -06:00
Gregory Nutt
f61d15bb55 Tiva Ethernet: Completes TM4C129X Ethernet register definition header file 2014-12-30 13:42:19 -06:00
Gregory Nutt
408139dada Don't error out if no ethernet definitions available 2014-12-30 13:26:18 -06:00
Gregory Nutt
9a71dc091b Tiva Ethernet: More progress with register bit definitions 2014-12-30 11:08:18 -06:00
Gregory Nutt
8cea115be7 Tiva Ethernet: More progress with register bit definitions 2014-12-30 09:22:24 -06:00
Gregory Nutt
6bd5702778 TM4C129G Ethernet: Add Ethernet register addresses. Header files still incomplete 2014-12-30 08:09:09 -06:00
Gregory Nutt
1dc66f3104 Tiva: Add framework to support the uniqueu TM4C Ethernet register definitions 2014-12-30 07:07:16 -06:00
Gregory Nutt
a0727124c2 stm32: update description and code documentation. Also fixes a few code formattings.
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-29 09:59:46 -06:00
Gregory Nutt
1a27614552 stm32: fix wait upon vertical blank. This should never have occurred before.
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-29 09:48:25 -06:00
Gregory Nutt
171c017a0c stm32: fix faulty access to non existing layer. This disables operation that requires double layer support, when configured for single layer only.
Signed-off-by: Marco Krahl <ocram.lhark@gmail.com>
2014-12-29 09:45:30 -06:00
Gregory Nutt
23ac4caf5a C5471: choice has a default value. It should not 2014-12-28 18:15:17 -06:00
Gregory Nutt
ad9429a527 Tiva SSI: Fix oversight in last commit. Would only fixe the case where the single SSI enabled was SSI0 2014-12-28 16:58:36 -06:00
Gregory Nutt
c802d5276b Tiva SSI: Fix some recent breakage to the Tiva SSI driver for the case where only one SSI modules is enabled 2014-12-28 16:55:47 -06:00
Gregory Nutt
59c6f42be4 STM32 Serial: PX4 HW workarround for flaky STM32 RTS. From David Sidrane 2014-12-27 18:58:18 -06:00
Gregory Nutt
d597e94332 Remove STM32-specific RX flow control logic from the upper level serial driver to the lower level STM32 serial driver 2014-12-27 09:45:45 -06:00
Gregory Nutt
405d72c1ad Serial Upper Half: Add watermarks to RX flow control logic 2014-12-27 07:43:06 -06:00
Gregory Nutt
214183ff93 STM32: Fix some incorrectly placed conditional logic 2014-12-26 12:41:35 -06:00
Gregory Nutt
78affd0f9a EFM32 Timer/PWM: Add support for timer/PWM EFM32GG. From Pierre-noel Bouteville 2014-12-26 09:55:19 -06:00
Gregory Nutt
45a93bb30e ARMv7M: More runtine stack checking logic. From David Sidrane 2014-12-26 08:46:25 -06:00
Gregory Nutt
570943bd71 STM32 I2C: Add strings to decode trace events. From David Sidrane 2014-12-26 08:35:21 -06:00
Gregory Nutt
831167f806 Add support for run time stack checking for the STM32. From David Sidrane 2014-12-26 08:30:42 -06:00
Gregory Nutt
8a2a594348 Tiva: Update UART header file for TM4C129X 2014-12-22 14:11:56 -06:00
Gregory Nutt
21f6598faf Tiva: Upate GPIO header file for TM4C129X 2014-12-22 12:59:13 -06:00
Gregory Nutt
f91583af61 TM4C129X: Simplify be removing unnecessary temporary variable 2014-12-22 12:01:33 -06:00
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