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-rw-r--r--drivers/net/wireless/intersil/orinoco/orinoco_usb.c81
1 files changed, 69 insertions, 12 deletions
diff --git a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
index 8419e13a79e2..6642948809e1 100644
--- a/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
+++ b/drivers/net/wireless/intersil/orinoco/orinoco_usb.c
@@ -665,6 +665,7 @@ static void ezusb_request_in_callback(struct ezusb_priv *upriv,
} /* switch */
}
+typedef void (*ezusb_ctx_wait)(struct ezusb_priv *, struct request_context *);
static void ezusb_req_ctx_wait(struct ezusb_priv *upriv,
struct request_context *ctx)
@@ -692,6 +693,54 @@ static void ezusb_req_ctx_wait(struct ezusb_priv *upriv,
}
}
+static void ezusb_req_ctx_wait_compl(struct ezusb_priv *upriv,
+ struct request_context *ctx)
+{
+ switch (ctx->state) {
+ case EZUSB_CTX_QUEUED:
+ case EZUSB_CTX_REQ_SUBMITTED:
+ case EZUSB_CTX_REQ_COMPLETE:
+ case EZUSB_CTX_RESP_RECEIVED:
+ wait_for_completion(&ctx->done);
+ break;
+ default:
+ /* Done or failed - nothing to wait for */
+ break;
+ }
+}
+
+static void ezusb_req_ctx_wait_poll(struct ezusb_priv *upriv,
+ struct request_context *ctx)
+{
+ int msecs;
+
+ switch (ctx->state) {
+ case EZUSB_CTX_QUEUED:
+ case EZUSB_CTX_REQ_SUBMITTED:
+ case EZUSB_CTX_REQ_COMPLETE:
+ case EZUSB_CTX_RESP_RECEIVED:
+ /* If we get called from a timer or with our lock acquired, then
+ * we can't wait for the completion and have to poll. This won't
+ * happen if the USB controller completes the URB requests in
+ * BH.
+ */
+ msecs = DEF_TIMEOUT * (1000 / HZ);
+
+ while (!try_wait_for_completion(&ctx->done) && msecs--)
+ udelay(1000);
+ break;
+ default:
+ /* Done or failed - nothing to wait for */
+ break;
+ }
+}
+
+static void ezusb_req_ctx_wait_skip(struct ezusb_priv *upriv,
+ struct request_context *ctx)
+{
+ WARN(1, "Shouldn't be invoked for in_rid\n");
+}
+
static inline u16 build_crc(struct ezusb_packet *data)
{
u16 crc = 0;
@@ -853,7 +902,8 @@ static int ezusb_firmware_download(struct ezusb_priv *upriv,
static int ezusb_access_ltv(struct ezusb_priv *upriv,
struct request_context *ctx,
u16 length, const void *data, u16 frame_type,
- void *ans_buff, unsigned ans_size, u16 *ans_length)
+ void *ans_buff, unsigned ans_size, u16 *ans_length,
+ ezusb_ctx_wait ezusb_ctx_wait_func)
{
int req_size;
int retval = 0;
@@ -883,7 +933,7 @@ static int ezusb_access_ltv(struct ezusb_priv *upriv,
spin_unlock_bh(&upriv->reply_count_lock);
if (ctx->in_rid)
- ezusb_req_ctx_wait(upriv, ctx);
+ ezusb_ctx_wait_func(upriv, ctx);
state = ctx->state;
switch (state) {
@@ -971,7 +1021,7 @@ static int ezusb_write_ltv(struct hermes *hw, int bap, u16 rid,
frame_type = EZUSB_FRAME_CONTROL;
return ezusb_access_ltv(upriv, ctx, length, data, frame_type,
- NULL, 0, NULL);
+ NULL, 0, NULL, ezusb_req_ctx_wait);
}
static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
@@ -988,7 +1038,7 @@ static int ezusb_read_ltv(struct hermes *hw, int bap, u16 rid,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, 0, NULL, EZUSB_FRAME_CONTROL,
- buf, bufsize, length);
+ buf, bufsize, length, ezusb_req_ctx_wait);
}
static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1,
@@ -1011,7 +1061,8 @@ static int ezusb_doicmd_wait(struct hermes *hw, u16 cmd, u16 parm0, u16 parm1,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
}
static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
@@ -1032,7 +1083,8 @@ static int ezusb_docmd_wait(struct hermes *hw, u16 cmd, u16 parm0,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
}
static int ezusb_bap_pread(struct hermes *hw, int bap,
@@ -1090,7 +1142,7 @@ static int ezusb_read_pda(struct hermes *hw, __le16 *pda,
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
EZUSB_FRAME_CONTROL, &pda[2], pda_len - 4,
- NULL);
+ NULL, ezusb_req_ctx_wait);
}
static int ezusb_program_init(struct hermes *hw, u32 entry_point)
@@ -1104,7 +1156,8 @@ static int ezusb_program_init(struct hermes *hw, u32 entry_point)
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
}
static int ezusb_program_end(struct hermes *hw)
@@ -1117,7 +1170,8 @@ static int ezusb_program_end(struct hermes *hw)
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, 0, NULL,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
}
static int ezusb_program_bytes(struct hermes *hw, const char *buf,
@@ -1133,7 +1187,8 @@ static int ezusb_program_bytes(struct hermes *hw, const char *buf,
return -ENOMEM;
err = ezusb_access_ltv(upriv, ctx, sizeof(data), &data,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
if (err)
return err;
@@ -1142,7 +1197,8 @@ static int ezusb_program_bytes(struct hermes *hw, const char *buf,
return -ENOMEM;
return ezusb_access_ltv(upriv, ctx, len, buf,
- EZUSB_FRAME_CONTROL, NULL, 0, NULL);
+ EZUSB_FRAME_CONTROL, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
}
static int ezusb_program(struct hermes *hw, const char *buf,
@@ -1262,7 +1318,8 @@ static netdev_tx_t ezusb_xmit(struct sk_buff *skb, struct net_device *dev)
tx_size = ALIGN(buf - ctx->buf->data, 2);
err = ezusb_access_ltv(upriv, ctx, tx_size, NULL,
- EZUSB_FRAME_DATA, NULL, 0, NULL);
+ EZUSB_FRAME_DATA, NULL, 0, NULL,
+ ezusb_req_ctx_wait);
if (err) {
netif_start_queue(dev);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-11 18:20:54 +0000