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Date: Fri, 9 Sep 2022 12:02:32 +0200
From: Michael Straube <straube.linux@...il.com>
To: gregkh@...uxfoundation.org
Cc: Larry.Finger@...inger.net, phil@...lpotter.co.uk,
linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
Michael Straube <straube.linux@...il.com>
Subject: [PATCH] staging: r8188eu: make c2h_evt_read() static
The function c2h_evt_read() is only used in rtw_cmd.c.
Make it static.
This addresses the TODO item:
* Remove the HAL layer and migrate its functionality into the relevant
parts of the driver.
Signed-off-by: Michael Straube <straube.linux@...il.com>
---
drivers/staging/r8188eu/core/rtw_cmd.c | 60 +++++++++++++++++++++
drivers/staging/r8188eu/hal/hal_com.c | 63 -----------------------
drivers/staging/r8188eu/include/hal_com.h | 2 -
3 files changed, 60 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/r8188eu/core/rtw_cmd.c b/drivers/staging/r8188eu/core/rtw_cmd.c
index 4be83807405c..ca1f2cc52470 100644
--- a/drivers/staging/r8188eu/core/rtw_cmd.c
+++ b/drivers/staging/r8188eu/core/rtw_cmd.c
@@ -1277,6 +1277,66 @@ u8 rtw_c2h_wk_cmd(struct adapter *padapter, u8 *c2h_evt)
return res;
}
+/* C2H event format:
+ * Field TRIGGER CONTENT CMD_SEQ CMD_LEN CMD_ID
+ * BITS [127:120] [119:16] [15:8] [7:4] [3:0]
+ */
+static s32 c2h_evt_read(struct adapter *adapter, u8 *buf)
+{
+ s32 ret = _FAIL;
+ struct c2h_evt_hdr *c2h_evt;
+ int i;
+ u8 trigger;
+
+ if (!buf)
+ goto exit;
+
+ ret = rtw_read8(adapter, REG_C2HEVT_CLEAR, &trigger);
+ if (ret)
+ return _FAIL;
+
+ if (trigger == C2H_EVT_HOST_CLOSE)
+ goto exit; /* Not ready */
+ else if (trigger != C2H_EVT_FW_CLOSE)
+ goto clear_evt; /* Not a valid value */
+
+ c2h_evt = (struct c2h_evt_hdr *)buf;
+
+ memset(c2h_evt, 0, 16);
+
+ ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL, buf);
+ if (ret) {
+ ret = _FAIL;
+ goto clear_evt;
+ }
+
+ ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL + 1, buf + 1);
+ if (ret) {
+ ret = _FAIL;
+ goto clear_evt;
+ }
+ /* Read the content */
+ for (i = 0; i < c2h_evt->plen; i++) {
+ ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL +
+ sizeof(*c2h_evt) + i, c2h_evt->payload + i);
+ if (ret) {
+ ret = _FAIL;
+ goto clear_evt;
+ }
+ }
+
+ ret = _SUCCESS;
+
+clear_evt:
+ /* Clear event to notify FW we have read the command.
+ * If this field isn't clear, the FW won't update the next
+ * command message.
+ */
+ rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE);
+exit:
+ return ret;
+}
+
static void c2h_evt_hdl(struct adapter *adapter, struct c2h_evt_hdr *c2h_evt, c2h_id_filter filter)
{
u8 buf[16];
diff --git a/drivers/staging/r8188eu/hal/hal_com.c b/drivers/staging/r8188eu/hal/hal_com.c
index 8416a65ba47b..33967eb3c0d0 100644
--- a/drivers/staging/r8188eu/hal/hal_com.c
+++ b/drivers/staging/r8188eu/hal/hal_com.c
@@ -137,66 +137,3 @@ void HalSetBrateCfg(struct adapter *adapt, u8 *brates, u16 *rate_cfg)
}
}
}
-
-/*
-* C2H event format:
-* Field TRIGGER CONTENT CMD_SEQ CMD_LEN CMD_ID
-* BITS [127:120] [119:16] [15:8] [7:4] [3:0]
-*/
-
-s32 c2h_evt_read(struct adapter *adapter, u8 *buf)
-{
- s32 ret = _FAIL;
- struct c2h_evt_hdr *c2h_evt;
- int i;
- u8 trigger;
-
- if (!buf)
- goto exit;
-
- ret = rtw_read8(adapter, REG_C2HEVT_CLEAR, &trigger);
- if (ret)
- return _FAIL;
-
- if (trigger == C2H_EVT_HOST_CLOSE)
- goto exit; /* Not ready */
- else if (trigger != C2H_EVT_FW_CLOSE)
- goto clear_evt; /* Not a valid value */
-
- c2h_evt = (struct c2h_evt_hdr *)buf;
-
- memset(c2h_evt, 0, 16);
-
- ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL, buf);
- if (ret) {
- ret = _FAIL;
- goto clear_evt;
- }
-
- ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL + 1, buf + 1);
- if (ret) {
- ret = _FAIL;
- goto clear_evt;
- }
- /* Read the content */
- for (i = 0; i < c2h_evt->plen; i++) {
- ret = rtw_read8(adapter, REG_C2HEVT_MSG_NORMAL +
- sizeof(*c2h_evt) + i, c2h_evt->payload + i);
- if (ret) {
- ret = _FAIL;
- goto clear_evt;
- }
- }
-
- ret = _SUCCESS;
-
-clear_evt:
- /*
- * Clear event to notify FW we have read the command.
- * If this field isn't clear, the FW won't update the next
- * command message.
- */
- rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE);
-exit:
- return ret;
-}
diff --git a/drivers/staging/r8188eu/include/hal_com.h b/drivers/staging/r8188eu/include/hal_com.h
index e8007295cd79..cd3f845e146a 100644
--- a/drivers/staging/r8188eu/include/hal_com.h
+++ b/drivers/staging/r8188eu/include/hal_com.h
@@ -143,6 +143,4 @@ u8 MRateToHwRate(u8 rate);
void HalSetBrateCfg(struct adapter *Adapter, u8 *mBratesOS, u16 *pBrateCfg);
-s32 c2h_evt_read(struct adapter *adapter, u8 *buf);
-
#endif /* __HAL_COMMON_H__ */
--
2.37.3
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