Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath6kl/hif.h | 214 +++++++++++++++++++++++++++++++++
1 files changed, 214 insertions(+), 0 deletions(-)
create mode 100644 drivers/net/wireless/ath/ath6kl/hif.h
diff --git a/drivers/net/wireless/ath/ath6kl/hif.h b/drivers/net/wireless/ath/ath6kl/hif.h
new file mode 100644
index 0000000..465876f
--- /dev/null
+++ b/drivers/net/wireless/ath/ath6kl/hif.h
@@ -0,0 +1,214 @@
+/*
+ * Copyright (c) 2004-2011 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 HIF_H
+#define HIF_H
+
+#include "common.h"
+#include "core.h"
+
+#define BUS_REQUEST_MAX_NUM 64
+#define HIF_MBOX_BLOCK_SIZE 128
+#define HIF_MBOX0_BLOCK_SIZE 1
+
+#define HIF_DMA_BUFFER_SIZE (32 * 1024)
+#define CMD53_FIXED_ADDRESS 1
+#define CMD53_INCR_ADDRESS 2
+
+#define MAX_SCATTER_REQUESTS 4
+#define MAX_SCATTER_ENTRIES_PER_REQ 16
+#define MAX_SCATTER_REQ_TRANSFER_SIZE (32 * 1024)
+
+#define MANUFACTURER_ID_AR6003_BASE 0x300
+ /* SDIO manufacturer ID and Codes */
+#define MANUFACTURER_ID_ATH6KL_BASE_MASK 0xFF00
+#define MANUFACTURER_CODE 0x271 /* Atheros */
+
+/* Mailbox address in SDIO address space */
+#define HIF_MBOX_BASE_ADDR 0x800
+#define HIF_MBOX_WIDTH 0x800
+
+#define HIF_MBOX_END_ADDR (HTC_MAILBOX_NUM_MAX * HIF_MBOX_WIDTH - 1)
+
+/* version 1 of the chip has only a 12K extended mbox range */
+#define HIF_MBOX0_EXT_BASE_ADDR 0x4000
+#define HIF_MBOX0_EXT_WIDTH (12*1024)
+
+/* GMBOX addresses */
+#define HIF_GMBOX_BASE_ADDR 0x7000
+#define HIF_GMBOX_WIDTH 0x4000
+
+/* interrupt mode register */
+#define CCCR_SDIO_IRQ_MODE_REG 0xF0
+
+/* mode to enable special 4-bit interrupt assertion without clock */
+#define SDIO_IRQ_MODE_ASYNC_4BIT_IRQ (1 << 0)
+
+struct bus_request {
+ struct list_head list;
+
+ /* request data */
+ u32 address;
+
+ u8 *buffer;
+ u32 length;
+ u32 request;
+ struct htc_packet *packet;
+ int status;
+
+ /* this is a scatter request */
+ struct hif_scatter_req *scat_req;
+};
+
+/* direction of transfer (read/write) */
+#define HIF_READ 0x00000001
+#define HIF_WRITE 0x00000002
+#define HIF_DIR_MASK (HIF_READ | HIF_WRITE)
+
+/*
+ * emode - This indicates the whether the command is to be executed in a
+ * blocking or non-blocking fashion (HIF_SYNCHRONOUS/
+ * HIF_ASYNCHRONOUS). The read/write data paths in HTC have been
+ * implemented using the asynchronous mode allowing the the bus
+ * driver to indicate the completion of operation through the
+ * registered callback routine. The requirement primarily comes
+ * from the contexts these operations get called from (a driver's
+ * transmit context or the ISR context in case of receive).
+ * Support for both of these modes is essential.
+ */
+#define HIF_SYNCHRONOUS 0x00000010
+#define HIF_ASYNCHRONOUS 0x00000020
+#define HIF_EMODE_MASK (HIF_SYNCHRONOUS | HIF_ASYNCHRONOUS)
+
+/*
+ * dmode - An interface may support different kinds of commands based on
+ * the tradeoff between the amount of data it can carry and the
+ * setup time. Byte and Block modes are supported (HIF_BYTE_BASIS/
+ * HIF_BLOCK_BASIS). In case of latter, the data is rounded off
+ * to the nearest block size by padding. The size of the block is
+ * configurable at compile time using the HIF_BLOCK_SIZE and is
+ * negotiated with the target during initialization after the
+ * ATH6KL interrupts are enabled.
+ */
+#define HIF_BYTE_BASIS 0x00000040
+#define HIF_BLOCK_BASIS 0x00000080
+#define HIF_DMODE_MASK (HIF_BYTE_BASIS | HIF_BLOCK_BASIS)
+
+/*
+ * amode - This indicates if the address has to be incremented on ATH6KL
+ * after every read/write operation (HIF?FIXED_ADDRESS/
+ * HIF_INCREMENTAL_ADDRESS).
+ */
+#define HIF_FIXED_ADDRESS 0x00000100
+#define HIF_INCREMENTAL_ADDRESS 0x00000200
+#define HIF_AMODE_MASK (HIF_FIXED_ADDRESS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_WR_ASYNC_BYTE_INC \
+ (HIF_WRITE | HIF_ASYNCHRONOUS | \
+ HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_WR_ASYNC_BLOCK_INC \
+ (HIF_WRITE | HIF_ASYNCHRONOUS | \
+ HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_WR_SYNC_BYTE_FIX \
+ (HIF_WRITE | HIF_SYNCHRONOUS | \
+ HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
+
+#define HIF_WR_SYNC_BYTE_INC \
+ (HIF_WRITE | HIF_SYNCHRONOUS | \
+ HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_WR_SYNC_BLOCK_INC \
+ (HIF_WRITE | HIF_SYNCHRONOUS | \
+ HIF_BLOCK_BASIS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_RD_SYNC_BYTE_INC \
+ (HIF_READ | HIF_SYNCHRONOUS | \
+ HIF_BYTE_BASIS | HIF_INCREMENTAL_ADDRESS)
+
+#define HIF_RD_SYNC_BYTE_FIX \
+ (HIF_READ | HIF_SYNCHRONOUS | \
+ HIF_BYTE_BASIS | HIF_FIXED_ADDRESS)
+
+#define HIF_RD_ASYNC_BLOCK_FIX \
+ (HIF_READ | HIF_ASYNCHRONOUS | \
+ HIF_BLOCK_BASIS | HIF_FIXED_ADDRESS)
+
+#define HIF_RD_SYNC_BLOCK_FIX \
+ (HIF_READ | HIF_SYNCHRONOUS | \
+ HIF_BLOCK_BASIS | HIF_FIXED_ADDRESS)
+
+struct hif_scatter_item {
+ u8 *buf;
+ int len;
+ struct htc_packet *packet;
+};
+
+struct hif_scatter_req {
+ struct list_head list;
+ /* address for the read/write operation */
+ u32 addr;
+
+ /* request flags */
+ u32 req;
+
+ /* total length of entire transfer */
+ u32 len;
+
+ u32 flags;
+ void (*complete) (struct hif_scatter_req *);
+ int status;
+ struct htc_endpoint *ep;
+ int scat_entries;
+
+ struct hif_scatter_req_priv *req_priv;
+
+ /* bounce buffer for upper layers to copy to/from */
+ u8 *virt_dma_buf;
+
+ struct hif_scatter_item scat_list[1];
+};
+
+struct hif_dev_scat_sup_info {
+ int (*rw_scat_func) (struct ath6kl *ar, struct hif_scatter_req *);
+ int max_scat_entries;
+ int max_xfer_szper_scatreq;
+};
+
+struct hif_scatter_req_priv {
+ struct bus_request *busrequest;
+ struct scatterlist sgentries[MAX_SCATTER_ENTRIES_PER_REQ];
+};
+
+struct ath6kl_hif_ops {
+ int (*read_write_sync)(struct ath6kl *ar, u32 addr, u8 *buf,
+ u32 len, u32 request);
+ int (*write_async)(struct ath6kl *ar, u32 address, u8 *buffer,
+ u32 length, u32 request, struct htc_packet *packet);
+
+ void (*irq_enable)(struct ath6kl *ar);
+ void (*irq_disable)(struct ath6kl *ar);
+
+ struct hif_scatter_req *(*scatter_req_get)(struct ath6kl *ar);
+ void (*scatter_req_add)(struct ath6kl *ar,
+ struct hif_scatter_req *s_req);
+ int (*enable_scatter)(struct ath6kl *ar,
+ struct hif_dev_scat_sup_info *info);
+ void (*cleanup_scatter)(struct ath6kl *ar);
+};
+
+#endif
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