[Xenomai-git] Alexis Berlemont : analogy: remove useless functions in the subdevice part

[GIT version control]

Module: xenomai-abe
Branch: experimental
Commit: 378b9e6c1819c882f58b3bdee169fa0bdf792be7
URL:
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=378b9e6c1819c882f58b3bdee169fa0bdf792be7

Author: Alexis Berlemont alexis.berlem...@gmail.com
Date:   Fri Jun  4 00:06:49 2010 +0200

analogy: remove useless functions in the subdevice part

---

 ksrc/drivers/analogy/subdevice.c |   15 ---
 1 files changed, 0 insertions(+), 15 deletions(-)

diff --git a/ksrc/drivers/analogy/subdevice.c b/ksrc/drivers/analogy/subdevice.c
index 506b742..1278081 100644
--- a/ksrc/drivers/analogy/subdevice.c
+++ b/ksrc/drivers/analogy/subdevice.c
@@ -180,21 +180,6 @@ a4l_subd_t *a4l_get_subd(a4l_dev_t *dev, int idx)
return subd;
 }
 
-int a4l_reserve_subd(a4l_subd_t *subd)
-{
-if (test_and_set_bit(A4L_SUBD_BUSY, subd-status)) {
-__a4l_err(a4l_reserve_subd: subdevice currently busy\n);
-return -EBUSY;
-}
-
-return 0;
-}
-
-void a4l_release_subd(a4l_subd_t *subd)
-{
-   clear_bit(A4L_SUBD_BUSY, subd-status));
-}
-
 /* --- IOCTL / FOPS functions --- */
 
 int a4l_ioctl_subdinfo(a4l_cxt_t * cxt, void *arg)


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[Xenomai-git] Alexis Berlemont : analogy: add some helper macros to test the subdevice' s characteristics

[GIT version control]

Module: xenomai-abe
Branch: experimental
Commit: 3a570d742a5b732d7cc14333f363aa34e7940764
URL:
http://git.xenomai.org/?p=xenomai-abe.git;a=commit;h=3a570d742a5b732d7cc14333f363aa34e7940764

Author: Alexis Berlemont alexis.berlem...@gmail.com
Date:   Fri Jun  4 00:06:05 2010 +0200

analogy: add some helper macros to test the subdevice's characteristics

---

 include/analogy/subdevice.h |   16 ++--
 1 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/include/analogy/subdevice.h b/include/analogy/subdevice.h
index ded82f3..0337092 100644
--- a/include/analogy/subdevice.h
+++ b/include/analogy/subdevice.h
@@ -286,12 +286,24 @@ int a4l_check_chanlist(a4l_subd_t * subd,
 
 /* --- Upper layer functions --- */
 
+static inline int a4l_reserve_subd(a4l_subd_t *subd)
+{
+return test_and_set_bit(A4L_SUBD_BUSY, subd-status) ? -EBUSY : 0;
+}
+#define a4l_release_subd(x) clear_bit(A4L_SUBD_BUSY, (x)-status))
+#define a4l_subd_is_busy(x) test_bit(A4L_SUBD_BUSY, (x)-status))
+
+#define a4l_subd_is_input(x) ((A4L_SUBD_MASK_READ  (x)-flags) != 0)
+/* The following macro considers that a DIO subdevice is firstly an
+   output subdevice */
+#define a4l_subd_is_output(x) \
+   ((A4L_SUBD_MASK_WRITE  (x)-flags) != 0 || \
+(A4L_SUBD_DIO  (x)-flags) != 0)
+
 a4l_subd_t * a4l_get_subd(struct a4l_device *dev, int idx);
 a4l_subd_t * a4l_alloc_subd(int sizeof_priv,
void (*setup)(a4l_subd_t *));
 int a4l_add_subd(struct a4l_device *dev, a4l_subd_t * subd);
-int a4l_reserve_subd(a4l_subd_t *subd);
-void a4l_release_subd(a4l_subd_t *subd);
 int a4l_ioctl_subdinfo(a4l_cxt_t * cxt, void *arg);
 int a4l_ioctl_chaninfo(a4l_cxt_t * cxt, void *arg);
 int a4l_ioctl_rnginfo(a4l_cxt_t * cxt, void *arg);


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