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authorTomas Winkler <tomas.winkler@intel.com>2008-09-03 11:26:52 +0800
committerJohn W. Linville <linville@tuxdriver.com>2008-09-08 14:23:20 -0400
commit9734cb23a02f8de5fa99225ca61c7019ca9f232f (patch)
treed5556d4c8f905276e76ac2bc939a8f68e75211f0 /drivers/net/wireless/iwlwifi
parentc90a74bae10dc2a4677d1bd06b6400db229d3e1e (diff)
iwlwifi: fix host command header according the HW spec
This patch aligns definition of host command with the spec. The inaccuracies weren't critical though. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-commands.h20
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-dev.h6
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c4
3 files changed, 16 insertions, 14 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index fbd8cc1f51d..8d04e966ad4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -163,6 +163,13 @@ enum {
/* iwl_cmd_header flags value */
#define IWL_CMD_FAILED_MSK 0x40
+#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
+#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
+#define SEQ_TO_INDEX(s) ((s) & 0xff)
+#define INDEX_TO_SEQ(i) ((i) & 0xff)
+#define SEQ_HUGE_FRAME __constant_cpu_to_le16(0x4000)
+#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
+
/**
* struct iwl_cmd_header
*
@@ -171,7 +178,7 @@ enum {
*/
struct iwl_cmd_header {
u8 cmd; /* Command ID: REPLY_RXON, etc. */
- u8 flags; /* IWL_CMD_* */
+ u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
/*
* The driver sets up the sequence number to values of its chosing.
* uCode does not use this value, but passes it back to the driver
@@ -187,11 +194,12 @@ struct iwl_cmd_header {
*
* The Linux driver uses the following format:
*
- * 0:7 index/position within Tx queue
- * 8:13 Tx queue selection
- * 14:14 driver sets this to indicate command is in the 'huge'
- * storage at the end of the command buffers, i.e. scan cmd
- * 15:15 uCode sets this in uCode-originated response/notification
+ * 0:7 tfd index - position within TX queue
+ * 8:12 TX queue id
+ * 13 reserved
+ * 14 huge - driver sets this to indicate command is in the
+ * 'huge' storage at the end of the command buffers
+ * 15 unsolicited RX or uCode-originated notification
*/
__le16 sequence;
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index edf3d0f3f9c..1943de3f764 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -225,12 +225,6 @@ struct iwl_frame {
struct list_head list;
};
-#define SEQ_TO_QUEUE(x) ((x >> 8) & 0xbf)
-#define QUEUE_TO_SEQ(x) ((x & 0xbf) << 8)
-#define SEQ_TO_INDEX(x) ((u8)(x & 0xff))
-#define INDEX_TO_SEQ(x) ((u8)(x & 0xff))
-#define SEQ_HUGE_FRAME (0x4000)
-#define SEQ_RX_FRAME __constant_cpu_to_le16(0x8000)
#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 6cba5e9c54e..a004cc8ab8f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -1057,7 +1057,7 @@ int iwl_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(IWL_CMD_QUEUE_NUM) |
INDEX_TO_SEQ(q->write_ptr));
if (out_cmd->meta.flags & CMD_SIZE_HUGE)
- out_cmd->hdr.sequence |= cpu_to_le16(SEQ_HUGE_FRAME);
+ out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
len = (idx == TFD_CMD_SLOTS) ?
IWL_MAX_SCAN_SIZE : sizeof(struct iwl_cmd);
phys_addr = pci_map_single(priv->pci_dev, out_cmd, len,
@@ -1192,8 +1192,8 @@ void iwl_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
u16 sequence = le16_to_cpu(pkt->hdr.sequence);
int txq_id = SEQ_TO_QUEUE(sequence);
int index = SEQ_TO_INDEX(sequence);
- int huge = sequence & SEQ_HUGE_FRAME;
int cmd_index;
+ bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
struct iwl_cmd *cmd;
/* If a Tx command is being handled and it isn't in the actual