From c0424dae9918a2258a2b368d177066290dbde71c Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679>
Date: Mon, 19 Dec 2011 19:35:52 +0000
Subject: [PATCH] Remove the PWM pulse count method.  It can't be support on
 current hardware

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4201 7fd9a85b-ad96-42d3-883c-3090e2eb8679
---
 nuttx/arch/arm/src/stm32/stm32_pwm.c | 23 -----------------------
 nuttx/drivers/pwm.c                  | 13 -------------
 nuttx/include/nuttx/pwm.h            | 23 -----------------------
 3 files changed, 59 deletions(-)

diff --git a/nuttx/arch/arm/src/stm32/stm32_pwm.c b/nuttx/arch/arm/src/stm32/stm32_pwm.c
index 141b7bb437..3162d31d1b 100644
--- a/nuttx/arch/arm/src/stm32/stm32_pwm.c
+++ b/nuttx/arch/arm/src/stm32/stm32_pwm.c
@@ -115,7 +115,6 @@ static int pwm_setup(FAR struct pwm_lowerhalf_s *dev);
 static int pwm_shutdown(FAR struct pwm_lowerhalf_s *dev);
 static int pwm_start(FAR struct pwm_lowerhalf_s *dev, FAR const struct pwm_info_s *info);
 static int pwm_stop(FAR struct pwm_lowerhalf_s *dev);
-static int pwm_pulsecount(FAR struct pwm_lowerhalf_s *dev, FAR pwm_count_t *count);
 static int pwm_ioctl(FAR struct pwm_lowerhalf_s *dev, int cmd, unsigned long arg);
 
 /****************************************************************************
@@ -129,7 +128,6 @@ static const struct pwm_ops_s g_pwmops =
   .shutdown   = pwm_shutdown,
   .start      = pwm_start,
   .stop       = pwm_stop,
-  .pulsecount = pwm_pulsecount,
   .ioctl      = pwm_ioctl,
 };
 
@@ -797,27 +795,6 @@ static int pwm_stop(FAR struct pwm_lowerhalf_s *dev)
   return OK;
 }
 
-/****************************************************************************
- * Name: pwm_pulsecount
- *
- * Description:
- *   Get the number of pulses generated
- *
- * Input parameters:
- *   dev - A reference to the lower half PWM driver state structure
- *   count - A pointer to the location to return the pulse count
- *
- * Returned Value:
- *   Zero on success; a negated errno value on failure
- *
- ****************************************************************************/
-
-static int pwm_pulsecount(FAR struct pwm_lowerhalf_s *dev, FAR pwm_count_t *count)
-{
-#warning "Missing logic"
-  return -ENOSYS;
-}
-
 /****************************************************************************
  * Name:
  *
diff --git a/nuttx/drivers/pwm.c b/nuttx/drivers/pwm.c
index c870adfe43..15447e9bec 100644
--- a/nuttx/drivers/pwm.c
+++ b/nuttx/drivers/pwm.c
@@ -343,19 +343,6 @@ static int pwm_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
         }
         break;
 
-      /* PWMIOC_GETPULSECOUNT - Return the number of pulses generated.
-       *
-       *   ioctl argument:  A pointer to a pwm_count_t variable that will be used to
-       *     receive the pulse count
-       */
-
-      case PWMIOC_GETPULSECOUNT:
-        {
-          FAR pwm_count_t *count = (FAR pwm_count_t *)((uintptr_t)arg);
-          ret = lower->ops->pulsecount(lower, count);
-        }
-        break;
-
       /* Any unrecognized IOCTL commands might be platform-specific ioctl commands */
 
       default:
diff --git a/nuttx/include/nuttx/pwm.h b/nuttx/include/nuttx/pwm.h
index 4cf695b1d7..eca721d85c 100644
--- a/nuttx/include/nuttx/pwm.h
+++ b/nuttx/include/nuttx/pwm.h
@@ -94,18 +94,12 @@
  * PWMIOC_STOP - Stop the pulsed output.
  *
  *   ioctl argument:  None
- *
- * PWMIOC_GETPULSECOUNT - Return the number of pulses generated.
- *
- *   ioctl argument:  A pointer to a pwm_count_t variable that will be used to
- *     receive the pulse count
  */
 
 #define PWMIOC_SETCHARACTERISTICS _PWMIOC(1)
 #define PWMIOC_GETCHARACTERISTICS _PWMIOC(2)
 #define PWMIOC_START              _PWMIOC(3)
 #define PWMIOC_STOP               _PWMIOC(4)
-#define PWMIOC_GETPULSECOUNT      _PWMIOC(5)
 
 /****************************************************************************
  * Public Types
@@ -118,19 +112,6 @@ struct pwm_info_s
   ub16_t   duty;      /* Duty of the pulse train, "1" to "0" duration */
 };
 
-/* This type is used to return pulse counts */
-
-#ifdef CONFIG_HAVE_LONG_LONG
-typedef uint16_t pwm_count_t;
-#else
-struct pwm_count_s
-{
-  uint32_t ms;  /* Most significant 32-bits of the 64-count */
-  uint32_t ls;  /* Least significant 32-bits of the 64-count */
-};
-typedef struct pwm_count_s pwm_count_t;
-#endif
-
 /* This structure is a set a callback functions used to call from the upper-
  * half, generic PWM driver into lower-half, platform-specific logic that
  * supports the low-level timer outputs.
@@ -161,10 +142,6 @@ struct pwm_ops_s
 
   CODE int (*stop)(FAR struct pwm_lowerhalf_s *dev);
 
-  /* Get the number of pulses generated */
-
-  CODE int (*pulsecount)(FAR struct pwm_lowerhalf_s *dev, FAR pwm_count_t *count);
-
   /* Lower-half logic may support platform-specific ioctl commands */
 
   CODE int (*ioctl)(FAR struct pwm_lowerhalf_s *dev, int cmd, unsigned long arg);