Changeset 5b082ba9 in mainline for uspace/lib/c/include/ddi.h

Timestamp:

2012-10-14T14:58:09Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

acc0efb

Parents:

1ae74c6

Message:

ddi: Add change, set, clear helper functions.

File:

• uspace/lib/c/include/ddi.h (modified) (3 diffs)

uspace/lib/c/include/ddi.h

@@ -37 +37 @@
 
 #include <sys/types.h>
+#include <sys/time.h>
 #include <abi/ddi/irq.h>
 #include <task.h>
@@ -51 +52 @@
 
 extern int pio_enable(void *, size_t, void **);
+
 extern void pio_write_8(ioport8_t *, uint8_t);
 extern void pio_write_16(ioport16_t *, uint16_t);
@@ -59 +61 @@
 extern uint32_t pio_read_32(ioport32_t *);
 
+static inline uint8_t pio_change_8(
+    ioport8_t *reg, uint8_t val, uint8_t mask, useconds_t delay)
+{
+        uint8_t v = pio_read_8(reg);
+        udelay(delay);
+        pio_write_8(reg, (v & ~mask) | val);
+        return v;
+}
+
+static inline uint16_t pio_change_16(
+    ioport16_t *reg, uint16_t val, uint16_t mask, useconds_t delay)
+{
+        uint16_t v = pio_read_16(reg);
+        udelay(delay);
+        pio_write_16(reg, (v & ~mask) | val);
+        return v;
+}
+
+static inline uint32_t pio_change_32(
+    ioport32_t *reg, uint32_t val, uint32_t mask, useconds_t delay)
+{
+        uint32_t v = pio_read_32(reg);
+        udelay(delay);
+        pio_write_32(reg, (v & ~mask) | val);
+        return v;
+}
+
+static inline uint8_t pio_set_8(ioport8_t *r, uint8_t v, useconds_t d)
+{
+        return pio_change_8(r, v, 0, d);
+}
+static inline uint16_t pio_set_16(ioport16_t *r, uint16_t v, useconds_t d)
+{
+        return pio_change_16(r, v, 0, d);
+}
+static inline uint32_t pio_set_32(ioport32_t *r, uint32_t v, useconds_t d)
+{
+        return pio_change_32(r, v, 0, d);
+}
+
+static inline uint8_t pio_clear_8(ioport8_t *r, uint8_t v, useconds_t d)
+{
+        return pio_change_8(r, 0, v, d);
+}
+static inline uint16_t pio_clear_16(ioport16_t *r, uint16_t v, useconds_t d)
+{
+        return pio_change_16(r, 0, v, d);
+}
+static inline uint32_t pio_clear_32(ioport32_t *r, uint32_t v, useconds_t d)
+{
+        return pio_change_32(r, 0, v, d);
+}
+
 extern int irq_register(int, int, int, irq_code_t *);
 extern int irq_unregister(int, int);