From 3183251de01b43922944dae2f48d2cef4470e019 Mon Sep 17 00:00:00 2001
From: liushuai25 <liushuai25@xiaomi.com>
Date: Sat, 4 Sep 2021 15:34:31 +0800
Subject: [PATCH] feature: driver: add interface for fb driver

add get and set panel power interface for fb driver.
add get and set framerate interface for fb driver.
add panel information at videoinfo for fb driver.

Signed-off-by: liushuai25 <liushuai25@xiaomi.com>
---
 drivers/video/Kconfig    |  4 ++++
 drivers/video/fb.c       | 38 ++++++++++++++++++++++++++++++++++++
 include/nuttx/video/fb.h | 42 +++++++++++++++++++++++++++++++++++-----
 3 files changed, 79 insertions(+), 5 deletions(-)

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 1a017abd64..5da6fd2e7f 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -29,6 +29,10 @@ config FB_OVERLAY
 	bool "Framebuffer overlay support"
 	default n
 
+config FB_MODULEINFO
+	bool "Framebuffer module information support"
+	default n
+
 config FB_OVERLAY_BLIT
 	bool "Framebuffer overlay blit support"
 	depends on FB_OVERLAY
diff --git a/drivers/video/fb.c b/drivers/video/fb.c
index e97ec5af2d..3e294dd73a 100644
--- a/drivers/video/fb.c
+++ b/drivers/video/fb.c
@@ -516,6 +516,44 @@ static int fb_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
 #endif
 #endif /* CONFIG_FB_OVERLAY */
 
+      case FBIOSET_POWER:
+        {
+          DEBUGASSERT(fb->vtable != NULL &&
+                      fb->vtable->setpower != NULL);
+          ret = fb->vtable->setpower(fb->vtable, (int)arg);
+        }
+        break;
+
+      case FBIOGET_POWER:
+        {
+          FAR int *power = (FAR int *)((uintptr_t)arg);
+
+          DEBUGASSERT(power != NULL && fb->vtable != NULL &&
+                      fb->vtable->getpower != NULL);
+          *(power) = fb->vtable->getpower(fb->vtable);
+          ret = OK;
+        }
+        break;
+
+      case FBIOGET_FRAMERATE:
+        {
+          FAR int *rate = (FAR int *)((uintptr_t)arg);
+
+          DEBUGASSERT(rate != NULL && fb->vtable != NULL &&
+                      fb->vtable->getframerate != NULL);
+          *(rate) = fb->vtable->getframerate(fb->vtable);
+          ret = OK;
+        }
+        break;
+
+      case FBIOSET_FRAMERATE:
+        {
+          DEBUGASSERT(fb->vtable != NULL &&
+                      fb->vtable->setframerate != NULL);
+          ret = fb->vtable->setframerate(fb->vtable, (int)arg);
+        }
+        break;
+
       default:
         gerr("ERROR: Unsupported IOCTL command: %d\n", cmd);
         ret = -ENOTTY;
diff --git a/include/nuttx/video/fb.h b/include/nuttx/video/fb.h
index 5064db4966..0291fd81cb 100644
--- a/include/nuttx/video/fb.h
+++ b/include/nuttx/video/fb.h
@@ -272,6 +272,17 @@
 #endif
 #endif /* CONFIG_FB_OVERLAY */
 
+/* Specific Controls ********************************************************/
+
+#define FBIOSET_POWER         _FBIOC(0x0012)  /* Set panel power
+                                               * Argument:             int */
+#define FBIOGET_POWER         _FBIOC(0x0013)  /* Get panel current power
+                                               * Argument:            int* */
+#define FBIOSET_FRAMERATE     _FBIOC(0x0014)  /* Set frame rate
+                                               * Argument:             int */
+#define FBIOGET_FRAMERATE     _FBIOC(0x0015)  /* Get frame rate
+                                               * Argument:            int* */
+
 /****************************************************************************
  * Public Types
  ****************************************************************************/
@@ -286,12 +297,15 @@ typedef uint16_t fb_coord_t;
 
 struct fb_videoinfo_s
 {
-  uint8_t    fmt;         /* see FB_FMT_*  */
-  fb_coord_t xres;        /* Horizontal resolution in pixel columns */
-  fb_coord_t yres;        /* Vertical resolution in pixel rows */
-  uint8_t    nplanes;     /* Number of color planes supported */
+  uint8_t    fmt;               /* see FB_FMT_*  */
+  fb_coord_t xres;              /* Horizontal resolution in pixel columns */
+  fb_coord_t yres;              /* Vertical resolution in pixel rows */
+  uint8_t    nplanes;           /* Number of color planes supported */
 #ifdef CONFIG_FB_OVERLAY
-  uint8_t    noverlays;   /* Number of overlays supported */
+  uint8_t    noverlays;         /* Number of overlays supported */
+#endif
+#ifdef CONFIG_FB_MODULEINFO
+  uint8_t    moduleinfo[128];   /* Module information filled by vendor */
 #endif
 };
 
@@ -569,6 +583,24 @@ struct fb_vtable_s
                FAR const struct fb_overlayblend_s *blend);
 # endif
 #endif
+
+  /* Specific Controls ******************************************************/
+
+  /* Set the frequency of the framebuffer update panel (0: disable refresh) */
+
+  int (*setframerate)(FAR struct fb_vtable_s *vtable, int rate);
+
+  /* Get the frequency of the framebuffer update panel (0: disable refresh) */
+
+  int (*getframerate)(FAR struct fb_vtable_s *vtable);
+
+  /* Get the panel power status (0: full off). */
+
+  int (*getpower)(FAR struct fb_vtable_s *vtable);
+
+  /* Enable/disable panel power (0: full off). */
+
+  int (*setpower)(FAR struct fb_vtable_s *vtable, int power);
 };
 
 /****************************************************************************