/* linux/arch/arm/mach-msm/dma.c
*
* Copyright (C) 2007 Google, Inc.
+ * Copyright (c) 2008-2011, Code Aurora Forum. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
spin_unlock_irqrestore(&msm_dmov_lock, irq_flags);
}
+void msm_dmov_flush(unsigned int id)
+{
+ unsigned long flags;
+ spin_lock_irqsave(&msm_dmov_lock, flags);
+ /* XXX not checking if flush cmd sent already */
+ if (!list_empty(&active_commands[id])) {
+ PRINT_IO("msm_dmov_flush(%d), send flush cmd\n", id);
+ writel(DMOV_FLUSH_GRACEFUL, DMOV_FLUSH0(id));
+ }
+ spin_unlock_irqrestore(&msm_dmov_lock, flags);
+}
+
struct msm_dmov_exec_cmdptr_cmd {
struct msm_dmov_cmd dmov_cmd;
struct completion complete;
void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd);
void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful);
int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr);
+void msm_dmov_flush(unsigned int id);
#else
static inline
void msm_dmov_enqueue_cmd(unsigned id, struct msm_dmov_cmd *cmd) { }
void msm_dmov_stop_cmd(unsigned id, struct msm_dmov_cmd *cmd, int graceful) { }
static inline
int msm_dmov_exec_cmd(unsigned id, unsigned int cmdptr) { return -EIO; }
+static inline
+void msm_dmov_flush(unsigned int id) { }
#endif
#define DMOV_FLUSH3(ch) DMOV_SD_AARM(0x140, ch)
#define DMOV_FLUSH4(ch) DMOV_SD_AARM(0x180, ch)
#define DMOV_FLUSH5(ch) DMOV_SD_AARM(0x1C0, ch)
+#define DMOV_FLUSH_GRACEFUL (1 << 31)
#define DMOV_STATUS(ch) DMOV_SD_AARM(0x200, ch)
#define DMOV_STATUS_RSLT_COUNT(n) (((n) >> 29))