167 lines
6.3 KiB
C
167 lines
6.3 KiB
C
/****************************************************************************
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* drivers/wireless/ieee80211/bcm43xxx/bcmf_sdio.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __DRIVERS_WIRELESS_IEEE80211_BCM43XXX_BCMF_SDIO_H
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#define __DRIVERS_WIRELESS_IEEE80211_BCM43XXX_BCMF_SDIO_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <queue.h>
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#include <nuttx/sdio.h>
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#include <nuttx/semaphore.h>
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#include "bcmf_driver.h"
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#include "bcmf_sdio_core.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define HEADER_SIZE 0x12 /* Default sdpcm + bdc header size */
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#define FIRST_WORD_SIZE 4
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#define FC_UPDATE_PKT_LENGTH 12
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* SDIO chip configuration structure */
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struct bcmf_sdio_chip
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{
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uint32_t ram_base;
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uint32_t ram_size;
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uint32_t core_base[MAX_CORE_ID];
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/* In-memory file images */
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FAR uint8_t *nvram_image;
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FAR unsigned int *nvram_image_size;
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#ifndef CONFIG_IEEE80211_BROADCOM_FWFILES
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FAR uint8_t *firmware_image;
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FAR unsigned int *firmware_image_size;
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#ifdef CONFIG_IEEE80211_BROADCOM_HAVE_CLM
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FAR uint8_t *clm_blob_image;
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FAR unsigned int *clm_blob_image_size;
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#endif
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#endif
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};
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/* SDIO bus structure extension */
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struct bcmf_sdio_dev_s
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{
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struct bcmf_bus_dev_s bus; /* Default bcmf bus structure */
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FAR struct sdio_dev_s *sdio_dev; /* The SDIO device bound to this instance */
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int minor; /* Device minor number */
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int cur_chip_id; /* Chip ID read from the card */
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struct bcmf_sdio_chip *chip; /* Chip specific configuration */
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volatile bool ready; /* Current device status */
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bool sleeping; /* Current sleep status */
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int thread_id; /* Processing thread id */
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sem_t thread_signal; /* Semaphore for processing thread event */
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struct wdog_s waitdog; /* Processing thread waitdog */
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uint32_t backplane_current_addr; /* Current function 1 backplane base addr */
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volatile bool irq_pending; /* True if interrupt is pending */
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uint32_t intstatus; /* Copy of device current interrupt status */
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uint8_t max_seq; /* Maximum transmit sequence allowed */
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uint8_t tx_seq; /* Transmit sequence number (next) */
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uint8_t rx_seq; /* Receive sequence number (expected) */
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bool flow_ctrl; /* Current flow control status */
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sem_t queue_mutex; /* Lock for TX/RX/free queues */
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dq_queue_t free_queue; /* Queue of available frames */
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dq_queue_t tx_queue; /* Queue of frames to transmit */
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dq_queue_t rx_queue; /* Queue of frames used to receive */
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volatile int tx_queue_count; /* Count of items in TX queue */
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};
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/* Structure used to manage SDIO frames */
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struct bcmf_sdio_frame
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{
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struct bcmf_frame_s header;
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bool tx;
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dq_entry_t list_entry;
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uint8_t pad[CONFIG_IEEE80211_BROADCOM_DMABUF_ALIGNMENT -
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FIRST_WORD_SIZE]
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aligned_data(CONFIG_IEEE80211_BROADCOM_DMABUF_ALIGNMENT);
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/* pad[] array is used and aligned in order to make the following data[]
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* buffer aligned beginning from the offset of 4 bytes to the address
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* boundary for SDIO DMA transfers.
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* The first 4 bytes of data[] buffer are not directly used in DMA
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* transfers. Instead, they are used as the initial phase just to get
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* the length of the remaining long data to be read. Thus only
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* the remaining part of data[] buffer beginning from the offset of 4 bytes
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* is required to be aligned to the address boundary set by
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* CONFIG_IEEE80211_BROADCOM_SDIO_DMA_BUF_ALIGNMENT parameter.
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*/
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uint8_t data[HEADER_SIZE + MAX_NETDEV_PKTSIZE +
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CONFIG_NET_GUARDSIZE];
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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int bcmf_bus_sdio_initialize(FAR struct bcmf_dev_s *priv,
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int minor, FAR struct sdio_dev_s *dev);
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/* FIXME: Low level bus data transfer function
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* To avoid bus error, len will be aligned to:
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* - upper power of 2 iflen is lesser than 64
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* - upper 64 bytes block if len is greater than 64
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*/
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int bcmf_transfer_bytes(FAR struct bcmf_sdio_dev_s *sbus, bool write,
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uint8_t function, uint32_t address,
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uint8_t *buf, unsigned int len);
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int bcmf_read_reg(FAR struct bcmf_sdio_dev_s *sbus, uint8_t function,
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uint32_t address, uint8_t *reg);
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int bcmf_write_reg(FAR struct bcmf_sdio_dev_s *sbus, uint8_t function,
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uint32_t address, uint8_t reg);
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struct bcmf_sdio_frame *bcmf_sdio_allocate_frame(FAR struct bcmf_dev_s *priv,
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bool block, bool tx);
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void bcmf_sdio_free_frame(FAR struct bcmf_dev_s *priv,
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struct bcmf_sdio_frame *sframe);
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#endif /* __DRIVERS_WIRELESS_IEEE80211_BCM43XXX_BCMF_SDIO_H */
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