This is an automated email from the ASF dual-hosted git repository.
xiaoxiang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new b832638b15 add support to LTDC for Linum board
b832638b15 is described below
commit b832638b1553e1d1b4f6658b82cd663ba37fc3cb
Author: halyssonJr <[email protected]>
AuthorDate: Thu Aug 8 19:35:50 2024 -0300
add support to LTDC for Linum board
---
.../arm/stm32h7/linum-stm32h753bi/include/board.h | 66 ++++++++++++
.../linum-stm32h753bi/src/linum-stm32h753bi.h | 8 ++
.../stm32h7/linum-stm32h753bi/src/stm32_bringup.c | 42 ++++++++
.../arm/stm32h7/linum-stm32h753bi/src/stm32_lcd.c | 120 +++++++++++++++++++++
4 files changed, 236 insertions(+)
diff --git a/boards/arm/stm32h7/linum-stm32h753bi/include/board.h
b/boards/arm/stm32h7/linum-stm32h753bi/include/board.h
index 3430686f19..88d0e02457 100644
--- a/boards/arm/stm32h7/linum-stm32h753bi/include/board.h
+++ b/boards/arm/stm32h7/linum-stm32h753bi/include/board.h
@@ -548,6 +548,72 @@
#define GPIO_TIM5_CH1IN GPIO_TIM5_CH1IN_1 /* PA0 */
#define GPIO_TIM5_CH2IN GPIO_TIM5_CH2IN_2 /* PH11 */
+/* LTDC */
+
+#define GPIO_LTDC_R0 (GPIO_LTDC_R0_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R1 (GPIO_LTDC_R1_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R2 (GPIO_LTDC_R2_4 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R3 (GPIO_LTDC_R3_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R4 (GPIO_LTDC_R4_4 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R5 (GPIO_LTDC_R5_4 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R6 (GPIO_LTDC_R6_4 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_R7 (GPIO_LTDC_R7_3 | GPIO_SPEED_100MHz)
+
+#define GPIO_LTDC_G0 (GPIO_LTDC_G0_2 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G1 (GPIO_LTDC_G1_2 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G2 (GPIO_LTDC_G2_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G3 (GPIO_LTDC_G3_4 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G4 (GPIO_LTDC_G4_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G5 (GPIO_LTDC_G5_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G6 (GPIO_LTDC_G6_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_G7 (GPIO_LTDC_G7_3 | GPIO_SPEED_100MHz)
+
+#define GPIO_LTDC_B0 (GPIO_LTDC_B0_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B1 (GPIO_LTDC_B1_2 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B2 (GPIO_LTDC_B2_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B3 (GPIO_LTDC_B3_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B4 (GPIO_LTDC_B4_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B5 (GPIO_LTDC_B5_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B6 (GPIO_LTDC_B6_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_B7 (GPIO_LTDC_B7_3 | GPIO_SPEED_100MHz)
+
+#define GPIO_LTDC_VSYNC (GPIO_LTDC_VSYNC_2 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_HSYNC (GPIO_LTDC_HSYNC_2 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_DE (GPIO_LTDC_DE_3 | GPIO_SPEED_100MHz)
+#define GPIO_LTDC_CLK (GPIO_LTDC_CLK_3 | GPIO_SPEED_100MHz)
+
+/* LCD definitions **********************************************************/
+
+#define BOARD_LTDC_WIDTH 1024
+#define BOARD_LTDC_HEIGHT 600
+
+#define BOARD_LTDC_OUTPUT_BPP 16
+#define BOARD_LTDC_HFP 160
+#define BOARD_LTDC_HBP 160
+#define BOARD_LTDC_VFP 1
+#define BOARD_LTDC_VBP 23
+#define BOARD_LTDC_HSYNC 0
+#define BOARD_LTDC_VSYNC 0
+
+#define BOARD_LTDC_PLLSAIN 192
+#define BOARD_LTDC_PLLSAIR 5
+
+/* Pixel Clock Polarity */
+
+#define BOARD_LTDC_GCR_PCPOL 0 /* !LTDC_GCR_PCPOL */
+
+/* Data Enable Polarity */
+
+#define BOARD_LTDC_GCR_DEPOL 0 /* !LTDC_GCR_DEPOL */
+
+/* Vertical Sync Polarity */
+
+#define BOARD_LTDC_GCR_VSPOL 0 /* !LTDC_GCR_VSPOL */
+
+/* Horizontal Sync Polarity */
+
+#define BOARD_LTDC_GCR_HSPOL 0 /* !LTDC_GCR_HSPOL */
+
/****************************************************************************
* Public Data
****************************************************************************/
diff --git a/boards/arm/stm32h7/linum-stm32h753bi/src/linum-stm32h753bi.h
b/boards/arm/stm32h7/linum-stm32h753bi/src/linum-stm32h753bi.h
index 19942b0ca2..7331213401 100644
--- a/boards/arm/stm32h7/linum-stm32h753bi/src/linum-stm32h753bi.h
+++ b/boards/arm/stm32h7/linum-stm32h753bi/src/linum-stm32h753bi.h
@@ -118,6 +118,14 @@
#define LINUMSTM32H753BI_QETIMER 5
+/* LCD */
+
+#define GPIO_LCD_DISP (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
+ GPIO_OUTPUT_SET|GPIO_PORTI|GPIO_PIN7)
+
+#define GPIO_LCD_BL (GPIO_OUTPUT|GPIO_PUSHPULL|GPIO_SPEED_50MHz|\
+ GPIO_OUTPUT_SET|GPIO_PORTH|GPIO_PIN6)
+
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
diff --git a/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_bringup.c
b/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_bringup.c
index c50094ca8e..1069085fd5 100644
--- a/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_bringup.c
+++ b/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_bringup.c
@@ -53,10 +53,38 @@
#include <nuttx/usb/rndis.h>
#endif
+#ifdef CONFIG_VIDEO_FB
+# include <nuttx/video/fb.h>
+#endif
+
+#include <arch/board/board.h>
+
/****************************************************************************
* Private Functions
****************************************************************************/
+static void convert_lcd_rgb565(void)
+{
+ /* Put LCD_{R0,R1,R2,G0,G1,B0,B1,B2} in low level */
+
+ stm32_configgpio(GPIO_LTDC_R0);
+ stm32_gpiowrite(GPIO_LTDC_R0, 0);
+ stm32_configgpio(GPIO_LTDC_R1);
+ stm32_gpiowrite(GPIO_LTDC_R1, 0);
+ stm32_configgpio(GPIO_LTDC_R2);
+ stm32_gpiowrite(GPIO_LTDC_R2, 0);
+ stm32_configgpio(GPIO_LTDC_G0);
+ stm32_gpiowrite(GPIO_LTDC_G0, 0);
+ stm32_configgpio(GPIO_LTDC_G1);
+ stm32_gpiowrite(GPIO_LTDC_G1, 0);
+ stm32_configgpio(GPIO_LTDC_B0);
+ stm32_gpiowrite(GPIO_LTDC_B0, 0);
+ stm32_configgpio(GPIO_LTDC_B1);
+ stm32_gpiowrite(GPIO_LTDC_B1, 0);
+ stm32_configgpio(GPIO_LTDC_B2);
+ stm32_gpiowrite(GPIO_LTDC_B2, 0);
+}
+
/****************************************************************************
* Name: stm32_i2c_register
*
@@ -158,6 +186,20 @@ int stm32_bringup(void)
}
#endif /* CONFIG_FS_PROCFS */
+ /* Put pin not used in RG565 to level zero */
+
+ convert_lcd_rgb565();
+
+#ifdef CONFIG_VIDEO_FB
+ /* Initialize and register the framebuffer driver */
+
+ ret = fb_register(0, 0);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: fb_register() failed: %d\n", ret);
+ }
+#endif
+
#ifdef CONFIG_USERLED
/* Register the LED driver */
diff --git a/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_lcd.c
b/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_lcd.c
new file mode 100644
index 0000000000..326b5b4b06
--- /dev/null
+++ b/boards/arm/stm32h7/linum-stm32h753bi/src/stm32_lcd.c
@@ -0,0 +1,120 @@
+/****************************************************************************
+ * boards/arm/stm32h7/linum-stm32h753bi/src/stm32_lcd.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership. The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/board.h>
+#include <nuttx/video/fb.h>
+#include <arch/board/board.h>
+
+#include "stm32_gpio.h"
+#include "stm32_ltdc.h"
+
+#include "linum-stm32h753bi.h"
+
+#ifdef CONFIG_STM32H7_LTDC
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_fbinitialize
+ *
+ * Description:
+ * Initialize the framebuffer video hardware associated with the display.
+ *
+ * Input Parameters:
+ * display - In the case of hardware with multiple displays, this
+ * specifies the display. Normally this is zero.
+ *
+ * Returned Value:
+ * Zero is returned on success; a negated errno value is returned on any
+ * failure.
+ *
+ ****************************************************************************/
+
+int up_fbinitialize(int display)
+{
+ /* Custom LCD display with RGB interface */
+
+ stm32_configgpio(GPIO_LCD_DISP);
+ stm32_configgpio(GPIO_LCD_BL);
+
+ stm32_gpiowrite(GPIO_LCD_DISP, true);
+ stm32_gpiowrite(GPIO_LCD_BL, true);
+
+ return stm32_ltdcinitialize();
+}
+
+/****************************************************************************
+ * Name: up_fbgetvplane
+ *
+ * Description:
+ * Return a a reference to the framebuffer object for the specified video
+ * plane of the specified plane.
+ * Many OSDs support multiple planes of video.
+ *
+ * Input Parameters:
+ * display - In the case of hardware with multiple displays, this
+ * specifies the display. Normally this is zero.
+ * vplane - Identifies the plane being queried.
+ *
+ * Returned Value:
+ * A non-NULL pointer to the frame buffer access structure is returned on
+ * success; NULL is returned on any failure.
+ *
+ ****************************************************************************/
+
+struct fb_vtable_s *up_fbgetvplane(int display, int vplane)
+{
+ return stm32_ltdcgetvplane(vplane);
+}
+
+/****************************************************************************
+ * Name: up_fbuninitialize
+ *
+ * Description:
+ * Uninitialize the framebuffer support for the specified display.
+ *
+ * Input Parameters:
+ * display - In the case of hardware with multiple displays, this
+ * specifies the display. Normally this is zero.
+ *
+ * Returned Value:
+ * None
+ *
+ ****************************************************************************/
+
+void up_fbuninitialize(int display)
+{
+ stm32_gpiowrite(GPIO_LCD_DISP, false);
+ stm32_gpiowrite(GPIO_LCD_BL, false);
+
+ stm32_ltdcuninitialize();
+}
+#endif /* CONFIG_STM32_LTDC */
