Return-path: Received: from emh04.mail.saunalahti.fi ([62.142.5.110]:55416 "EHLO emh04.mail.saunalahti.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752873Ab1GQKXQ (ORCPT ); Sun, 17 Jul 2011 06:23:16 -0400 Subject: [PATCH v2 14/23] ath6kl: add htc_hif.h To: linux-wireless@vger.kernel.org From: Kalle Valo Cc: joe@perches.com, devel@linuxdriverproject.org, gregkh@suse.de, error27@gmail.com Date: Sun, 17 Jul 2011 13:23:09 +0300 Message-ID: <20110717102309.18367.57254.stgit@localhost6.localdomain6> (sfid-20110717_124610_670939_8CDEEDEE) In-Reply-To: <20110717101844.18367.44984.stgit@localhost6.localdomain6> References: <20110717101844.18367.44984.stgit@localhost6.localdomain6> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: Signed-off-by: Kalle Valo --- 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_ */