summaryrefslogtreecommitdiffstats
path: root/kernel/drivers/net/wireless/ath/ath10k/hif.h
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/drivers/net/wireless/ath/ath10k/hif.h')
-rw-r--r--kernel/drivers/net/wireless/ath/ath10k/hif.h225
1 files changed, 225 insertions, 0 deletions
diff --git a/kernel/drivers/net/wireless/ath/ath10k/hif.h b/kernel/drivers/net/wireless/ath/ath10k/hif.h
new file mode 100644
index 000000000..0c92e0251
--- /dev/null
+++ b/kernel/drivers/net/wireless/ath/ath10k/hif.h
@@ -0,0 +1,225 @@
+/*
+ * Copyright (c) 2005-2011 Atheros Communications Inc.
+ * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HIF_H_
+#define _HIF_H_
+
+#include <linux/kernel.h>
+#include "core.h"
+#include "debug.h"
+
+struct ath10k_hif_sg_item {
+ u16 transfer_id;
+ void *transfer_context; /* NULL = tx completion callback not called */
+ void *vaddr; /* for debugging mostly */
+ u32 paddr;
+ u16 len;
+};
+
+struct ath10k_hif_cb {
+ int (*tx_completion)(struct ath10k *ar,
+ struct sk_buff *wbuf);
+ int (*rx_completion)(struct ath10k *ar,
+ struct sk_buff *wbuf);
+};
+
+struct ath10k_hif_ops {
+ /* send a scatter-gather list to the target */
+ int (*tx_sg)(struct ath10k *ar, u8 pipe_id,
+ struct ath10k_hif_sg_item *items, int n_items);
+
+ /* read firmware memory through the diagnose interface */
+ int (*diag_read)(struct ath10k *ar, u32 address, void *buf,
+ size_t buf_len);
+
+ int (*diag_write)(struct ath10k *ar, u32 address, const void *data,
+ int nbytes);
+ /*
+ * API to handle HIF-specific BMI message exchanges, this API is
+ * synchronous and only allowed to be called from a context that
+ * can block (sleep)
+ */
+ int (*exchange_bmi_msg)(struct ath10k *ar,
+ void *request, u32 request_len,
+ void *response, u32 *response_len);
+
+ /* Post BMI phase, after FW is loaded. Starts regular operation */
+ int (*start)(struct ath10k *ar);
+
+ /* Clean up what start() did. This does not revert to BMI phase. If
+ * desired so, call power_down() and power_up() */
+ void (*stop)(struct ath10k *ar);
+
+ int (*map_service_to_pipe)(struct ath10k *ar, u16 service_id,
+ u8 *ul_pipe, u8 *dl_pipe,
+ int *ul_is_polled, int *dl_is_polled);
+
+ void (*get_default_pipe)(struct ath10k *ar, u8 *ul_pipe, u8 *dl_pipe);
+
+ /*
+ * Check if prior sends have completed.
+ *
+ * Check whether the pipe in question has any completed
+ * sends that have not yet been processed.
+ * This function is only relevant for HIF pipes that are configured
+ * to be polled rather than interrupt-driven.
+ */
+ void (*send_complete_check)(struct ath10k *ar, u8 pipe_id, int force);
+
+ void (*set_callbacks)(struct ath10k *ar,
+ struct ath10k_hif_cb *callbacks);
+
+ u16 (*get_free_queue_number)(struct ath10k *ar, u8 pipe_id);
+
+ u32 (*read32)(struct ath10k *ar, u32 address);
+
+ void (*write32)(struct ath10k *ar, u32 address, u32 value);
+
+ /* Power up the device and enter BMI transfer mode for FW download */
+ int (*power_up)(struct ath10k *ar);
+
+ /* Power down the device and free up resources. stop() must be called
+ * before this if start() was called earlier */
+ void (*power_down)(struct ath10k *ar);
+
+ int (*suspend)(struct ath10k *ar);
+ int (*resume)(struct ath10k *ar);
+};
+
+static inline int ath10k_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
+ struct ath10k_hif_sg_item *items,
+ int n_items)
+{
+ return ar->hif.ops->tx_sg(ar, pipe_id, items, n_items);
+}
+
+static inline int ath10k_hif_diag_read(struct ath10k *ar, u32 address, void *buf,
+ size_t buf_len)
+{
+ return ar->hif.ops->diag_read(ar, address, buf, buf_len);
+}
+
+static inline int ath10k_hif_diag_write(struct ath10k *ar, u32 address,
+ const void *data, int nbytes)
+{
+ if (!ar->hif.ops->diag_write)
+ return -EOPNOTSUPP;
+
+ return ar->hif.ops->diag_write(ar, address, data, nbytes);
+}
+
+static inline int ath10k_hif_exchange_bmi_msg(struct ath10k *ar,
+ void *request, u32 request_len,
+ void *response, u32 *response_len)
+{
+ return ar->hif.ops->exchange_bmi_msg(ar, request, request_len,
+ response, response_len);
+}
+
+static inline int ath10k_hif_start(struct ath10k *ar)
+{
+ return ar->hif.ops->start(ar);
+}
+
+static inline void ath10k_hif_stop(struct ath10k *ar)
+{
+ return ar->hif.ops->stop(ar);
+}
+
+static inline int ath10k_hif_map_service_to_pipe(struct ath10k *ar,
+ u16 service_id,
+ u8 *ul_pipe, u8 *dl_pipe,
+ int *ul_is_polled,
+ int *dl_is_polled)
+{
+ return ar->hif.ops->map_service_to_pipe(ar, service_id,
+ ul_pipe, dl_pipe,
+ ul_is_polled, dl_is_polled);
+}
+
+static inline void ath10k_hif_get_default_pipe(struct ath10k *ar,
+ u8 *ul_pipe, u8 *dl_pipe)
+{
+ ar->hif.ops->get_default_pipe(ar, ul_pipe, dl_pipe);
+}
+
+static inline void ath10k_hif_send_complete_check(struct ath10k *ar,
+ u8 pipe_id, int force)
+{
+ ar->hif.ops->send_complete_check(ar, pipe_id, force);
+}
+
+static inline void ath10k_hif_set_callbacks(struct ath10k *ar,
+ struct ath10k_hif_cb *callbacks)
+{
+ ar->hif.ops->set_callbacks(ar, callbacks);
+}
+
+static inline u16 ath10k_hif_get_free_queue_number(struct ath10k *ar,
+ u8 pipe_id)
+{
+ return ar->hif.ops->get_free_queue_number(ar, pipe_id);
+}
+
+static inline int ath10k_hif_power_up(struct ath10k *ar)
+{
+ return ar->hif.ops->power_up(ar);
+}
+
+static inline void ath10k_hif_power_down(struct ath10k *ar)
+{
+ ar->hif.ops->power_down(ar);
+}
+
+static inline int ath10k_hif_suspend(struct ath10k *ar)
+{
+ if (!ar->hif.ops->suspend)
+ return -EOPNOTSUPP;
+
+ return ar->hif.ops->suspend(ar);
+}
+
+static inline int ath10k_hif_resume(struct ath10k *ar)
+{
+ if (!ar->hif.ops->resume)
+ return -EOPNOTSUPP;
+
+ return ar->hif.ops->resume(ar);
+}
+
+static inline u32 ath10k_hif_read32(struct ath10k *ar, u32 address)
+{
+ if (!ar->hif.ops->read32) {
+ ath10k_warn(ar, "hif read32 not supported\n");
+ return 0xdeaddead;
+ }
+
+ return ar->hif.ops->read32(ar, address);
+}
+
+static inline void ath10k_hif_write32(struct ath10k *ar,
+ u32 address, u32 data)
+{
+ if (!ar->hif.ops->write32) {
+ ath10k_warn(ar, "hif write32 not supported\n");
+ return;
+ }
+
+ ar->hif.ops->write32(ar, address, data);
+}
+
+#endif /* _HIF_H_ */