* layer */
struct iwl_priv;
-struct iwl_rxon_context;
-struct iwl_host_cmd;
struct iwl_shared;
-struct iwl_device_cmd;
+
+#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)
+
+enum {
+ CMD_SYNC = 0,
+ CMD_ASYNC = BIT(0),
+ CMD_WANT_SKB = BIT(1),
+ CMD_ON_DEMAND = BIT(2),
+};
+
+#define DEF_CMD_PAYLOAD_SIZE 320
+
+/**
+ * struct iwl_device_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for commands that
+ * aren't fully copied and use other TFD space.
+ */
+struct iwl_device_cmd {
+ struct iwl_cmd_header hdr; /* uCode API */
+ u8 payload[DEF_CMD_PAYLOAD_SIZE];
+} __packed;
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
+
+#define IWL_MAX_CMD_TFDS 2
+
+enum iwl_hcmd_dataflag {
+ IWL_HCMD_DFL_NOCOPY = BIT(0),
+};
+
+/**
+ * struct iwl_host_cmd - Host command to the uCode
+ * @data: array of chunks that composes the data of the host command
+ * @reply_page: pointer to the page that holds the response to the host command
+ * @handler_status: return value of the handler of the command
+ * (put in setup_rx_handlers) - valid for SYNC mode only
+ * @callback:
+ * @flags: can be CMD_* note CMD_WANT_SKB is incompatible withe CMD_ASYNC
+ * @len: array of the lenths of the chunks in data
+ * @dataflags:
+ * @id: id of the host command
+ */
+struct iwl_host_cmd {
+ const void *data[IWL_MAX_CMD_TFDS];
+ unsigned long reply_page;
+ int handler_status;
+
+ u32 flags;
+ u16 len[IWL_MAX_CMD_TFDS];
+ u8 dataflags[IWL_MAX_CMD_TFDS];
+ u8 id;
+};
/**
* struct iwl_trans_ops - transport specific operations
* @wake_any_queue: wake all the queues of a specfic context IWL_RXON_CTX_*
* @stop_device:stops the whole device (embedded CPU put to reset)
* @send_cmd:send a host command
- * @send_cmd_pdu:send a host command: flags can be CMD_*
* @tx: send an skb
* @reclaim: free packet until ssn. Returns a list of freed packets.
* @tx_agg_alloc: allocate resources for a TX BA session
* @kick_nic: remove the RESET from the embedded CPU and let it run
* @free: release all the ressource for the transport layer itself such as
* irq, tasklet etc...
+ * @stop_queue: stop a specific queue
+ * @check_stuck_queue: check if a specific queue is stuck
+ * @wait_tx_queue_empty: wait until all tx queues are empty
* @dbgfs_register: add the dbgfs files under this directory. Files will be
* automatically deleted.
* @suspend: stop the device unless WoWLAN is configured
void (*stop_device)(struct iwl_trans *trans);
void (*tx_start)(struct iwl_trans *trans);
- void (*wake_any_queue)(struct iwl_trans *trans, u8 ctx);
+ void (*wake_any_queue)(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx);
int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd);
- int (*send_cmd_pdu)(struct iwl_trans *trans, u8 id, u32 flags, u16 len,
- const void *data);
int (*tx)(struct iwl_trans *trans, struct sk_buff *skb,
- struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id);
+ struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx,
+ u8 sta_id);
void (*reclaim)(struct iwl_trans *trans, int sta_id, int tid,
int txq_id, int ssn, u32 status,
struct sk_buff_head *skbs);
void (*free)(struct iwl_trans *trans);
+ void (*stop_queue)(struct iwl_trans *trans, int q);
+
int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir);
+ int (*check_stuck_queue)(struct iwl_trans *trans, int q);
+ int (*wait_tx_queue_empty)(struct iwl_trans *trans);
+#ifdef CONFIG_PM_SLEEP
int (*suspend)(struct iwl_trans *trans);
int (*resume)(struct iwl_trans *trans);
+#endif
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_desc {
+ dma_addr_t p_addr; /* hardware address */
+ void *v_addr; /* software address */
+ u32 len; /* size in bytes */
+};
+
+struct fw_img {
+ struct fw_desc code; /* firmware code image */
+ struct fw_desc data; /* firmware data image */
+};
+
+enum iwl_ucode_type {
+ IWL_UCODE_NONE,
+ IWL_UCODE_REGULAR,
+ IWL_UCODE_INIT,
+ IWL_UCODE_WOWLAN,
};
/**
* @ops - pointer to iwl_trans_ops
* @shrd - pointer to iwl_shared which holds shared data from the upper layer
* @hcmd_lock: protects HCMD
+ * @ucode_write_complete: indicates that the ucode has been copied.
+ * @ucode_rt: run time ucode image
+ * @ucode_init: init ucode image
+ * @ucode_wowlan: wake on wireless ucode image (optional)
*/
struct iwl_trans {
const struct iwl_trans_ops *ops;
struct iwl_shared *shrd;
spinlock_t hcmd_lock;
+ u8 ucode_write_complete; /* the image write is complete */
+ struct fw_img ucode_rt;
+ struct fw_img ucode_init;
+ struct fw_img ucode_wowlan;
+
/* pointer to trans specific struct */
/*Ensure that this pointer will always be aligned to sizeof pointer */
char trans_specific[0] __attribute__((__aligned__(sizeof(void *))));
trans->ops->tx_start(trans);
}
-static inline void iwl_trans_wake_any_queue(struct iwl_trans *trans, u8 ctx)
+static inline void iwl_trans_wake_any_queue(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx)
{
trans->ops->wake_any_queue(trans, ctx);
}
return trans->ops->send_cmd(trans, cmd);
}
-static inline int iwl_trans_send_cmd_pdu(struct iwl_trans *trans, u8 id,
- u32 flags, u16 len, const void *data)
-{
- return trans->ops->send_cmd_pdu(trans, id, flags, len, data);
-}
+int iwl_trans_send_cmd_pdu(struct iwl_trans *trans, u8 id,
+ u32 flags, u16 len, const void *data);
static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
- struct iwl_device_cmd *dev_cmd, u8 ctx, u8 sta_id)
+ struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx,
+ u8 sta_id)
{
return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id);
}
trans->ops->free(trans);
}
+static inline void iwl_trans_stop_queue(struct iwl_trans *trans, int q)
+{
+ trans->ops->stop_queue(trans, q);
+}
+
+static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans)
+{
+ return trans->ops->wait_tx_queue_empty(trans);
+}
+
+static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q)
+{
+ return trans->ops->check_stuck_queue(trans, q);
+}
static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans,
struct dentry *dir)
{
return trans->ops->dbgfs_register(trans, dir);
}
+#ifdef CONFIG_PM_SLEEP
static inline int iwl_trans_suspend(struct iwl_trans *trans)
{
return trans->ops->suspend(trans);
{
return trans->ops->resume(trans);
}
+#endif
/*****************************************************
* Transport layers implementations
******************************************************/
extern const struct iwl_trans_ops trans_ops_pcie;
+int iwl_alloc_fw_desc(struct iwl_bus *bus, struct fw_desc *desc,
+ const void *data, size_t len);
+void iwl_dealloc_ucode(struct iwl_trans *trans);
+
#endif /* __iwl_trans_h__ */
projects / karo-tx-linux.git / blobdiff