[PATCH v2 14/23] ath6kl: add htc_hif.h

[Kalle Valo <kvalo@qca.qualcomm.com>]

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/htc_hif.h |  113 +++++++++++++++++++++++++++++
 1 files changed, 113 insertions(+), 0 deletions(-)
 create mode 100644 drivers/net/wireless/ath/ath6kl/htc_hif.h

diff --git a/drivers/net/wireless/ath/ath6kl/htc_hif.h b/drivers/net/wireless/ath/ath6kl/htc_hif.h
new file mode 100644
index 0000000..d770d4e
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/htc_hif.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2007-2011 Atheros Communications 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 HTC_HIF_H
+#define HTC_HIF_H
+
+#include "htc.h"
+#include "hif.h"
+
+#define ATH6KL_MAILBOXES	4
+
+/* HTC runs over mailbox 0 */
+#define HTC_MAILBOX	0
+
+#define ATH6KL_TARGET_DEBUG_INTR_MASK     0x01
+
+#define OTHER_INTS_ENABLED		(INT_STATUS_ENABLE_ERROR_MASK |	\
+					INT_STATUS_ENABLE_CPU_MASK   |	\
+					INT_STATUS_ENABLE_COUNTER_MASK)
+
+#define ATH6KL_REG_IO_BUFFER_SIZE			32
+#define ATH6KL_MAX_REG_IO_BUFFERS			8
+#define ATH6KL_SCATTER_ENTRIES_PER_REQ            16
+#define ATH6KL_MAX_TRANSFER_SIZE_PER_SCATTER      (16 * 1024)
+#define ATH6KL_SCATTER_REQS                       4
+
+#ifndef A_CACHE_LINE_PAD
+#define A_CACHE_LINE_PAD                        128
+#endif
+#define ATH6KL_MIN_SCATTER_ENTRIES_PER_REQ        2
+#define ATH6KL_MIN_TRANSFER_SIZE_PER_SCATTER      (4 * 1024)
+
+struct ath6kl_irq_proc_registers {
+	u8 host_int_status;
+	u8 cpu_int_status;
+	u8 error_int_status;
+	u8 counter_int_status;
+	u8 mbox_frame;
+	u8 rx_lkahd_valid;
+	u8 host_int_status2;
+	u8 gmbox_rx_avail;
+	__le32 rx_lkahd[2];
+	__le32 rx_gmbox_lkahd_alias[2];
+} __packed;
+
+struct ath6kl_irq_enable_reg {
+	u8 int_status_en;
+	u8 cpu_int_status_en;
+	u8 err_int_status_en;
+	u8 cntr_int_status_en;
+} __packed;
+
+/* buffers for ASYNC I/O */
+struct ath6kl_async_reg_io_buffer {
+	struct htc_packet packet;
+	u8 pad1[A_CACHE_LINE_PAD];
+	/* cache-line safe with pads around */
+	u8 buf[ATH6KL_REG_IO_BUFFER_SIZE];
+	u8 pad2[A_CACHE_LINE_PAD];
+};
+
+struct ath6kl_device {
+	spinlock_t lock;
+	u8 pad1[A_CACHE_LINE_PAD];
+	struct ath6kl_irq_proc_registers irq_proc_reg;
+	u8 pad2[A_CACHE_LINE_PAD];
+	struct ath6kl_irq_enable_reg irq_en_reg;
+	u8 pad3[A_CACHE_LINE_PAD];
+	u32 block_sz;
+	u32 block_mask;
+	struct htc_target *htc_cnxt;
+	struct list_head reg_io;
+	struct ath6kl_async_reg_io_buffer reg_io_buf[ATH6KL_MAX_REG_IO_BUFFERS];
+	int (*msg_pending) (struct htc_target *target, u32 lk_ahds[],
+			    int *npkts_fetched);
+	struct hif_dev_scat_sup_info hif_scat_info;
+	bool virt_scat;
+	int max_rx_bndl_sz;
+	int max_tx_bndl_sz;
+	int chk_irq_status_cnt;
+	struct ath6kl *ar;
+};
+
+int ath6kldev_setup(struct ath6kl_device *dev);
+int ath6kldev_unmask_intrs(struct ath6kl_device *dev);
+int ath6kldev_mask_intrs(struct ath6kl_device *dev);
+int ath6kldev_poll_mboxmsg_rx(struct ath6kl_device *dev,
+			      u32 *lk_ahd, int timeout);
+int ath6kldev_rx_control(struct ath6kl_device *dev, bool enable_rx);
+int ath6kldev_disable_intrs(struct ath6kl_device *dev);
+
+int ath6kldev_rw_comp_handler(void *context, int status);
+int ath6kldev_intr_bh_handler(struct ath6kl *ar);
+
+/* Scatter Function and Definitions */
+int ath6kldev_setup_msg_bndl(struct ath6kl_device *dev, int max_msg_per_xfer);
+int ath6kldev_submit_scat_req(struct ath6kl_device *dev,
+			    struct hif_scatter_req *scat_req, bool read);
+
+#endif /*ATH6KL_H_ */