From 0b3dac2c336a1c7e8dcad0846e5e2859801bbc5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=84=9A=E8=B9=AC=E7=A0=B4=E6=8B=96=E9=9E=8B?=
 <happypapa@yeah.net>
Date: Mon, 6 Jan 2020 20:49:17 -0600
Subject: [PATCH] Author: Gregory Nutt <gnutt@nuttx.org>
MIME-Version: 1.0
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    Run all .c and .h files in last PR through nxstyle.

Author: 脚蹬破拖鞋 <happypapa@yeah.net>

    Add Imxrt usdhc insert or remove detection (#43)

    * Add usdhc card insertion and removal detection using interrupt for imxrt.
    * Add interrupt handle when usdhc insert or remove.
---
 arch/arm/src/imxrt/imxrt_ehci.c               |  2 +-
 arch/arm/src/imxrt/imxrt_usdhc.c              | 32 +++++++++++++++++--
 .../imxrt/imxrt1060-evk/src/imxrt_bringup.c   |  5 ++-
 3 files changed, 34 insertions(+), 5 deletions(-)

diff --git a/arch/arm/src/imxrt/imxrt_ehci.c b/arch/arm/src/imxrt/imxrt_ehci.c
index 2a98806bdfb..3005066bea3 100644
--- a/arch/arm/src/imxrt/imxrt_ehci.c
+++ b/arch/arm/src/imxrt/imxrt_ehci.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * arch/arm/src/imxrt/imxrt_ehci.c
  *
- *   Copyright (C) 2013-2017 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2013-2017, 2020 Gregory Nutt. All rights reserved.
  *   Authors: Gregory Nutt <gnutt@nuttx.org>
  *            Dave Marples <dave@marples.net>
  *
diff --git a/arch/arm/src/imxrt/imxrt_usdhc.c b/arch/arm/src/imxrt/imxrt_usdhc.c
index 76e3bf88a7f..a138a152e5f 100644
--- a/arch/arm/src/imxrt/imxrt_usdhc.c
+++ b/arch/arm/src/imxrt/imxrt_usdhc.c
@@ -78,7 +78,7 @@
 
 /* Configuration ************************************************************/
 
-#if ((defined(CONFIG_IMXRT_USDHC1) && !defined(CONFIG_IMXRT_USDHC2)) ||	\
+#if ((defined(CONFIG_IMXRT_USDHC1) && !defined(CONFIG_IMXRT_USDHC2)) || \
      (defined(CONFIG_IMXRT_USDHC2) && !defined(CONFIG_IMXRT_USDHC1)))
 #  define  IMXRT_MAX_SDHC_DEV_SLOTS  1
 #elif (defined(CONFIG_IMXRT_USDHC1) && defined(CONFIG_IMXRT_USDHC2))
@@ -1232,11 +1232,30 @@ static int imxrt_interrupt(int irq, void *context, FAR void *arg)
 
       /* We don't want any more ints now, so switch it off */
 
-      priv->cintints  = 0;
       regval         &= ~USDHC_INT_CINT;
+      priv->cintints  = regval;
       putreg32(regval, priv->addr + IMXRT_USDHC_IRQSIGEN_OFFSET);
     }
 
+  if ((pending & USDHC_INT_CINS) != 0 || (pending & USDHC_INT_CRM) != 0)
+    {
+      if (up_interrupt_context())
+        {
+          /* Yes.. queue it */
+
+          mcinfo("Queuing callback to %p(%p)\n", priv->callback, priv->cbarg);
+          (void)work_queue(HPWORK, &priv->cbwork, (worker_t)priv->callback,
+                          priv->cbarg, 0);
+        }
+      else
+        {
+          /* No.. then just call the callback here */
+
+          mcinfo("Callback to %p(%p)\n", priv->callback, priv->cbarg);
+          priv->callback(priv->cbarg);
+        }
+    }
+
   /* Handle wait events *****************************************************/
 
   pending = enabled & priv->waitints;
@@ -3019,7 +3038,14 @@ void imxrt_usdhc_set_sdio_card_isr(FAR struct sdio_dev_s *dev,
       priv->cintints = 0;
     }
 
-  flags = enter_critical_section();
+#if defined(CONFIG_MMCSD_HAVE_CARDDETECT)
+  if (priv->sw_cd_gpio == 0)
+    {
+      priv->cintints |= USDHC_INT_CINS | USDHC_INT_CRM;
+    }
+#endif
+
+  flags  = enter_critical_section();
   regval = getreg32(priv->addr + IMXRT_USDHC_IRQSIGEN_OFFSET);
   regval = (regval & ~USDHC_INT_CINT) | priv->cintints;
   putreg32(regval, priv->addr + IMXRT_USDHC_IRQSIGEN_OFFSET);
diff --git a/boards/arm/imxrt/imxrt1060-evk/src/imxrt_bringup.c b/boards/arm/imxrt/imxrt1060-evk/src/imxrt_bringup.c
index e38c96b1a01..c7376087306 100644
--- a/boards/arm/imxrt/imxrt1060-evk/src/imxrt_bringup.c
+++ b/boards/arm/imxrt/imxrt1060-evk/src/imxrt_bringup.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * boards/arm/imxrt/imxrt1060-evk/src/imxrt_bringup.c
  *
- *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2018, 2020 Gregory Nutt. All rights reserved.
  *   Authors: Gregory Nutt <gnutt@nuttx.org>
  *            David Sidrane <david_s5@nscdg.com>
  *
@@ -121,7 +121,10 @@ static int nsh_sdmmc_initialize(void)
                  "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n",
                  ret);
         }
+
+      imxrt_usdhc_set_sdio_card_isr(sdmmc, NULL, NULL);
     }
+
   return OK;
 }
 #else