mirror of https://gitee.com/openkylin/linux.git
142 lines
4.8 KiB
C
142 lines
4.8 KiB
C
/*
|
|
* Intel Wireless WiMAX Connection 2400m
|
|
* SDIO-specific i2400m driver definitions
|
|
*
|
|
*
|
|
* Copyright (C) 2007-2008 Intel Corporation. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
* Intel Corporation <linux-wimax@intel.com>
|
|
* Brian Bian <brian.bian@intel.com>
|
|
* Dirk Brandewie <dirk.j.brandewie@intel.com>
|
|
* Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
|
|
* Yanir Lubetkin <yanirx.lubetkin@intel.com>
|
|
* - Initial implementation
|
|
*
|
|
*
|
|
* This driver implements the bus-specific part of the i2400m for
|
|
* SDIO. Check i2400m.h for a generic driver description.
|
|
*
|
|
* ARCHITECTURE
|
|
*
|
|
* This driver sits under the bus-generic i2400m driver, providing the
|
|
* connection to the device.
|
|
*
|
|
* When probed, all the function pointers are setup and then the
|
|
* bus-generic code called. The generic driver will then use the
|
|
* provided pointers for uploading firmware (i2400ms_bus_bm*() in
|
|
* sdio-fw.c) and then setting up the device (i2400ms_dev_*() in
|
|
* sdio.c).
|
|
*
|
|
* Once firmware is uploaded, TX functions (sdio-tx.c) are called when
|
|
* data is ready for transmission in the TX fifo; then the SDIO IRQ is
|
|
* fired and data is available (sdio-rx.c), it is sent to the generic
|
|
* driver for processing with i2400m_rx.
|
|
*/
|
|
|
|
#ifndef __I2400M_SDIO_H__
|
|
#define __I2400M_SDIO_H__
|
|
|
|
#include "i2400m.h"
|
|
|
|
/* Host-Device interface for SDIO */
|
|
enum {
|
|
I2400MS_BLK_SIZE = 256,
|
|
I2400MS_PL_SIZE_MAX = 0x3E00,
|
|
|
|
I2400MS_DATA_ADDR = 0x0,
|
|
I2400MS_INTR_STATUS_ADDR = 0x13,
|
|
I2400MS_INTR_CLEAR_ADDR = 0x13,
|
|
I2400MS_INTR_ENABLE_ADDR = 0x14,
|
|
I2400MS_INTR_GET_SIZE_ADDR = 0x2C,
|
|
/* The number of ticks to wait for the device to signal that
|
|
* it is ready */
|
|
I2400MS_INIT_SLEEP_INTERVAL = 10,
|
|
/* How long to wait for the device to settle after reset */
|
|
I2400MS_SETTLE_TIME = 40,
|
|
};
|
|
|
|
|
|
/**
|
|
* struct i2400ms - descriptor for a SDIO connected i2400m
|
|
*
|
|
* @i2400m: bus-generic i2400m implementation; has to be first (see
|
|
* it's documentation in i2400m.h).
|
|
*
|
|
* @func: pointer to our SDIO function
|
|
*
|
|
* @tx_worker: workqueue struct used to TX data when the bus-generic
|
|
* code signals packets are pending for transmission to the device.
|
|
*
|
|
* @tx_workqueue: workqeueue used for data TX; we don't use the
|
|
* system's workqueue as that might cause deadlocks with code in
|
|
* the bus-generic driver.
|
|
*/
|
|
struct i2400ms {
|
|
struct i2400m i2400m; /* FIRST! See doc */
|
|
struct sdio_func *func;
|
|
|
|
struct work_struct tx_worker;
|
|
struct workqueue_struct *tx_workqueue;
|
|
char tx_wq_name[32];
|
|
|
|
struct dentry *debugfs_dentry;
|
|
|
|
wait_queue_head_t bm_wfa_wq;
|
|
int bm_wait_result;
|
|
size_t bm_ack_size;
|
|
};
|
|
|
|
|
|
static inline
|
|
void i2400ms_init(struct i2400ms *i2400ms)
|
|
{
|
|
i2400m_init(&i2400ms->i2400m);
|
|
}
|
|
|
|
|
|
extern int i2400ms_rx_setup(struct i2400ms *);
|
|
extern void i2400ms_rx_release(struct i2400ms *);
|
|
extern ssize_t __i2400ms_rx_get_size(struct i2400ms *);
|
|
|
|
extern int i2400ms_tx_setup(struct i2400ms *);
|
|
extern void i2400ms_tx_release(struct i2400ms *);
|
|
extern void i2400ms_bus_tx_kick(struct i2400m *);
|
|
|
|
extern ssize_t i2400ms_bus_bm_cmd_send(struct i2400m *,
|
|
const struct i2400m_bootrom_header *,
|
|
size_t, int);
|
|
extern ssize_t i2400ms_bus_bm_wait_for_ack(struct i2400m *,
|
|
struct i2400m_bootrom_header *,
|
|
size_t);
|
|
extern void i2400ms_bus_bm_release(struct i2400m *);
|
|
extern int i2400ms_bus_bm_setup(struct i2400m *);
|
|
|
|
#endif /* #ifndef __I2400M_SDIO_H__ */
|