msm_shared: Cleanup Qtimers.
1. mdelay(), udelay(): The counter wrapping
needs to accounted for while waitng for a
calculated number of ticks.
2. Remove the Virtual timer implementation.
3. Add functions to read the physical count and
counter frequency and move cp15 specific functions
to a new file.
4. Move function declarations and #define's to
header file.
5. Add isb() for each cp15 write.
Change-Id: I5c7efaee4233a8650064e6a9bbcaaf729d836180
diff --git a/platform/msm_shared/include/qtimer.h b/platform/msm_shared/include/qtimer.h
new file mode 100644
index 0000000..afb27df
--- /dev/null
+++ b/platform/msm_shared/include/qtimer.h
@@ -0,0 +1,46 @@
+/* Copyright (c) 2012, Code Aurora Forum. All rights reserved.
+
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ * * Neither the name of Code Aurora Forum, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <platform/timer.h>
+
+
+#define QTMR_TIMER_CTRL_ENABLE (1 << 0)
+#define QTMR_TIMER_CTRL_INT_MASK (1 << 1)
+
+#define QTMR_PHY_CNT_MAX_VALUE 0xFFFFFFFFFFFFFF
+
+void qtimer_set_physical_timer(time_t msecs_interval,
+ platform_timer_callback tmr_callback, void *tmr_arg);
+void disable_qtimer();
+uint64_t qtimer_get_phy_timer_cnt();
+uint32_t qtimer_current_time();
+uint32_t qtimer_get_frequency();
+void uninit_qtimer();
+void qtimer_init();
+uint32_t qtimer_tick_rate();