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README.md
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README.md
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@ -4336,11 +4336,11 @@ https://github.com/apache/nuttx/pull/7796
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We're adding the MIPI DSI Driver to the NuttX Kernel...
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- [mipi_dsi.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/mipi_dsi.c): Compose MIPI DSI Packets (Long, Short, Short with Parameter)
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- [mipi_dsi.c](https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/mipi_dsi.c): Compose MIPI DSI Packets (Long, Short, Short with Parameter)
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- [a64_mipi_dsi.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dsi.c): MIPI Display Serial Interface (DSI) for Allwinner A64
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- [a64_mipi_dsi.c](https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dsi.c): MIPI Display Serial Interface (DSI) for Allwinner A64
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- [a64_mipi_dphy.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dphy.c): MIPI Display Physical Layer (D-PHY) for Allwinner A64
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- [a64_mipi_dphy.c](https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dphy.c): MIPI Display Physical Layer (D-PHY) for Allwinner A64
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We created the above NuttX Source Files (in C) by converting our Zig MIPI DSI Driver to C...
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@ -4366,7 +4366,7 @@ Here's the Zig code for our MIPI DSI Driver...
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https://github.com/lupyuen/pinephone-nuttx/blob/3d33e5a49a5a3857c39fe8aa79af60902a70088e/display.zig#L115-L170
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And here's the converted C code for NuttX: [mipi_dsi.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/mipi_dsi.c#L392-L484)
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And here's the converted C code for NuttX: [mipi_dsi.c](https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/mipi_dsi.c#L392-L484)
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```c
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ssize_t mipi_dsi_short_packet(FAR uint8_t *pktbuf,
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@ -4530,7 +4530,7 @@ Here's the Test Log for our Zig Test Program running on NuttX and PinePhone...
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_What about Unit Testing? Can we test the MIPI DSI / D-PHY Driver without other drivers?_
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Yep! Our MIPI DSI Driver simply writes values to a bunch of A64 Hardware Registers, like so: [a64_mipi_dsi.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dsi.c#L633-L646)
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Yep! Our MIPI DSI Driver simply writes values to a bunch of A64 Hardware Registers, like so: [a64_mipi_dsi.c](https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dsi.c#L633-L646)
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```c
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/* DSI Configuration Register 1 (A31 Page 846)
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@ -4612,23 +4612,23 @@ Our Display Engine Driver will follow the design of STM32F7 Display Driver...
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1. `stm32_bringup` calls `fb_register`...
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[boards/arm/stm32f7/stm32f746g-disco/src/stm32_bringup.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32f7/stm32f746g-disco/src/stm32_bringup.c#L100)
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[boards/arm/stm32f7/stm32f746g-disco/src/stm32_bringup.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32f7/stm32f746g-disco/src/stm32_bringup.c#L100)
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1. `fb_register` calls `up_fbinitialize`...
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[drivers/video/fb.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/drivers/video/fb.c#L664)
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[drivers/video/fb.c](https://github.com/apache/nuttx/blob/master/drivers/video/fb.c#L664)
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1. `up_fbinitialize` calls `stm32_ltdcinitialize`...
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[boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c#L72)
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[boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c#L72)
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1. `stm32_ltdcinitialize` creates the NuttX Framebuffer...
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[arch/arm/src/stm32f7/stm32_ltdc.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm/src/stm32f7/stm32_ltdc.c#L2971)
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[arch/arm/src/stm32f7/stm32_ltdc.c](https://github.com/apache/nuttx/blob/master/arch/arm/src/stm32f7/stm32_ltdc.c#L2971)
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1. NuttX Framebuffer is here...
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[arch/arm/src/stm32f7/stm32_ltdc.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm/src/stm32f7/stm32_ltdc.c#L864)
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[arch/arm/src/stm32f7/stm32_ltdc.c](https://github.com/apache/nuttx/blob/master/arch/arm/src/stm32f7/stm32_ltdc.c#L864)
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# Add Backlight Driver to NuttX Kernel
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@ -4638,13 +4638,13 @@ TODO: PinePhone Backlight Driver, convert from Zig to C
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Our Backlight Driver will follow the design of the STM32 Backlight Driver: `stm32_backlight`...
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- [boards/arm/stm32/hymini-stm32v/src/stm32_ssd1289.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32/hymini-stm32v/src/stm32_ssd1289.c#L230)
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- [boards/arm/stm32/hymini-stm32v/src/stm32_ssd1289.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32/hymini-stm32v/src/stm32_ssd1289.c#L230)
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- [boards/arm/stm32/viewtool-stm32f107/src/stm32_ssd1289.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32/viewtool-stm32f107/src/stm32_ssd1289.c#L298)
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- [boards/arm/stm32/viewtool-stm32f107/src/stm32_ssd1289.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32/viewtool-stm32f107/src/stm32_ssd1289.c#L298)
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The code will go inside our Board LCD Source File, similar to this...
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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# Add LCD Panel Driver to NuttX Kernel
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@ -4654,7 +4654,7 @@ TODO: PinePhone LCD Panel Driver, convert from Zig to C
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The code will go inside our Board LCD Source File, similar to this...
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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# Add Power Management Integrated Circuit Driver to NuttX Kernel
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@ -4664,7 +4664,7 @@ TODO: PinePhone PMIC, convert from Zig to C, needs more reverse engineering
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The code will go inside our Board LCD Source File, similar to this...
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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- [boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c](https://github.com/apache/nuttx/blob/master/boards/arm/stm32f7/stm32f746g-disco/src/stm32_lcd.c)
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# Test Logs
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@ -1,6 +1,6 @@
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// Test Code for Allwinner A64 MIPI D-PHY
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// Add `#include "../../pinephone-nuttx/test/test_a64_mipi_dphy.c"` to the end of a64_mipi_dphy_enable() in:
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// https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dphy.c
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// https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dphy.c
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{
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// Test Code for Allwinner A64 MIPI DSI
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// Add `#include "../../pinephone-nuttx/test/test_a64_mipi_dsi.c"` to the end of this file:
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// https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dsi.c
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// https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dsi.c
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/// Write the DCS Command to MIPI DSI
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static int write_dcs(const uint8_t *buf, size_t len)
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// Test Code for Allwinner A64 MIPI DSI
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// Add `#include "../../pinephone-nuttx/test/test_a64_mipi_dsi2.c"` to the end of a64_mipi_dsi_enable() in this file:
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// https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dsi.c
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// https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dsi.c
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{
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DEBUGASSERT(BUS_CLK_GATING_REG0 == 0x1c20060);
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// Test Code for Allwinner A64 MIPI DSI
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// Add `#include "../../pinephone-nuttx/test/test_a64_mipi_dsi3.c"` to the end of a64_mipi_dsi_start() in this file:
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// https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/a64_mipi_dsi.c
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// https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/a64_mipi_dsi.c
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{
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DEBUGASSERT(DSI_INST_JUMP_SEL_REG == 0x1ca0048);
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// Test Code for MIPI DSI
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// Add `#include "../../pinephone-nuttx/test/test_mipi_dsi.c"` to the end of this file:
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// https://github.com/lupyuen2/wip-pinephone-nuttx/blob/dsi/arch/arm64/src/a64/mipi_dsi.c
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// https://github.com/apache/nuttx/blob/master/arch/arm64/src/a64/mipi_dsi.c
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void mipi_dsi_test(void) //// TODO: Remove
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{
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