>From db89674b7316d7490e71c131091758eb7ef0eca2 Mon Sep 17 00:00:00 2001
From: Fernando Guzman Lugo <x0095840@xxxxxx>
Date: Wed, 25 Feb 2009 19:27:41 -0600
Subject: [PATCH] DSPBRIDGE: Remove unnecessary checks in HW_MBOX_IsFull function
This patch removes some unnecesarry checks in HW_MBOX_IsFull
function
Signed-off-by: Guzman Lugo Fernando <x0095840@xxxxxx>
---
drivers/dsp/bridge/hw/hw_mbox.c | 22 ++--------------------
drivers/dsp/bridge/hw/hw_mbox.h | 6 ++----
drivers/dsp/bridge/wmd/tiomap_sm.c | 14 ++++----------
3 files changed, 8 insertions(+), 34 deletions(-)
diff --git a/drivers/dsp/bridge/hw/hw_mbox.c b/drivers/dsp/bridge/hw/hw_mbox.c
index bc61d64..3a539f5
--- a/drivers/dsp/bridge/hw/hw_mbox.c
+++ b/drivers/dsp/bridge/hw/hw_mbox.c
@@ -105,28 +105,11 @@ HW_STATUS HW_MBOX_MsgWrite(const u32 baseAddress, const HW_MBOX_Id_t mailBoxId,
}
/* Reads the full status register for mailbox. */
-HW_STATUS HW_MBOX_IsFull(const void __iomem *baseAddress,
- const HW_MBOX_Id_t mailBoxId, u32 *const pIsFull)
+inline bool HW_MBOX_IsFull(const void __iomem *baseAddress,
+ const HW_MBOX_Id_t mailBoxId)
{
- HW_STATUS status = RET_OK;
- u32 fullStatus;
-
- /* Check input parameters */
- CHECK_INPUT_PARAM(baseAddress, 0, RET_BAD_NULL_PARAM, RES_MBOX_BASE +
- RES_INVALID_INPUT_PARAM);
- CHECK_INPUT_PARAM(pIsFull, NULL, RET_BAD_NULL_PARAM, RES_MBOX_BASE +
- RES_INVALID_INPUT_PARAM);
- CHECK_INPUT_RANGE_MIN0(mailBoxId, HW_MBOX_ID_MAX, RET_INVALID_ID,
- RES_MBOX_BASE + RES_INVALID_INPUT_PARAM);
-
- /* read the is full status parameter for Mailbox */
- fullStatus = MLBMAILBOX_FIFOSTATUS___0_15FifoFullMBmRead32(baseAddress,
+ return MLBMAILBOX_FIFOSTATUS___0_15FifoFullMBmRead32(baseAddress,
(u32)mailBoxId);
-
- /* fill in return parameter */
- *pIsFull = (fullStatus & 0xFF);
-
- return status;
}
/* Gets number of messages in a specified mailbox. */
diff --git a/drivers/dsp/bridge/hw/hw_mbox.h b/drivers/dsp/bridge/hw/hw_mbox.h
index 225fb40..50a3746
--- a/drivers/dsp/bridge/hw/hw_mbox.h
+++ b/drivers/dsp/bridge/hw/hw_mbox.h
@@ -158,11 +158,9 @@ extern HW_STATUS HW_MBOX_MsgWrite(
*
* PURPOSE: : this function reads the full status register for mailbox.
*/
-extern HW_STATUS HW_MBOX_IsFull(
+extern inline bool HW_MBOX_IsFull(
const void __iomem *baseAddress,
- const HW_MBOX_Id_t mailBoxId,
- u32 *const pIsFull
- );
+ const HW_MBOX_Id_t mailBoxId);
/*
* FUNCTION : HW_MBOX_NumMsgGet
diff --git a/drivers/dsp/bridge/wmd/tiomap_sm.c b/drivers/dsp/bridge/wmd/tiomap_sm.c
index edc3bcf..2843788
--- a/drivers/dsp/bridge/wmd/tiomap_sm.c
+++ b/drivers/dsp/bridge/wmd/tiomap_sm.c
@@ -173,8 +173,7 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext)
#endif
HW_STATUS hwStatus;
- u32 mbxFull;
struct CFG_HOSTRES resources;
- u16 cnt = 10;
+ u16 cnt = 1000;
u32 temp;
status = CFG_GetHostResources(
@@ -241,14 +240,9 @@ DSP_STATUS CHNLSM_InterruptDSP(struct WMD_DEV_CONTEXT *hDevContext)
pDevContext->dwBrdState = BRD_RUNNING;
}
- while (--cnt) {
- hwStatus = HW_MBOX_IsFull(resources.dwMboxBase,
- MBOX_ARM2DSP, &mbxFull);
- if (mbxFull)
- UTIL_Wait(1000); /* wait for 1 ms) */
- else
- break;
- }
+ while (--cnt && HW_MBOX_IsFull(resources.dwMboxBase, MBOX_ARM2DSP))
+ udelay(1);
+
if (!cnt) {
DBG_Trace(DBG_LEVEL7, "Timed out waiting for DSP mailbox \n");
status = WMD_E_TIMEOUT;
--
1.5.6.4
--
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