116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2011, 2012, Qualcomm Atheros Communications Inc.
|
||
|
|
* Copyright (c) 2014, I2SE GmbH
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Qualcomm Atheros SPI register definition.
|
||
|
|
*
|
||
|
|
* This module is designed to define the Qualcomm Atheros SPI register
|
||
|
|
* placeholders;
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _QCA_SPI_H
|
||
|
|
#define _QCA_SPI_H
|
||
|
|
|
||
|
|
#include <linux/netdevice.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <linux/skbuff.h>
|
||
|
|
#include <linux/spi/spi.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
#include "qca_framing.h"
|
||
|
|
|
||
|
|
#define QCASPI_DRV_VERSION "0.2.7-i"
|
||
|
|
#define QCASPI_DRV_NAME "qcaspi"
|
||
|
|
|
||
|
|
#define QCASPI_GOOD_SIGNATURE 0xAA55
|
||
|
|
|
||
|
|
#define TX_RING_MAX_LEN 10
|
||
|
|
#define TX_RING_MIN_LEN 2
|
||
|
|
|
||
|
|
/* sync related constants */
|
||
|
|
#define QCASPI_SYNC_UNKNOWN 0
|
||
|
|
#define QCASPI_SYNC_RESET 1
|
||
|
|
#define QCASPI_SYNC_READY 2
|
||
|
|
|
||
|
|
#define QCASPI_RESET_TIMEOUT 10
|
||
|
|
|
||
|
|
/* sync events */
|
||
|
|
#define QCASPI_EVENT_UPDATE 0
|
||
|
|
#define QCASPI_EVENT_CPUON 1
|
||
|
|
|
||
|
|
struct tx_ring {
|
||
|
|
struct sk_buff *skb[TX_RING_MAX_LEN];
|
||
|
|
u16 head;
|
||
|
|
u16 tail;
|
||
|
|
u16 size;
|
||
|
|
u16 count;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qcaspi_stats {
|
||
|
|
u64 trig_reset;
|
||
|
|
u64 device_reset;
|
||
|
|
u64 reset_timeout;
|
||
|
|
u64 read_err;
|
||
|
|
u64 write_err;
|
||
|
|
u64 read_buf_err;
|
||
|
|
u64 write_buf_err;
|
||
|
|
u64 out_of_mem;
|
||
|
|
u64 write_buf_miss;
|
||
|
|
u64 ring_full;
|
||
|
|
u64 spi_err;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct qcaspi {
|
||
|
|
struct net_device *net_dev;
|
||
|
|
struct spi_device *spi_dev;
|
||
|
|
struct task_struct *spi_thread;
|
||
|
|
|
||
|
|
struct tx_ring txr;
|
||
|
|
struct qcaspi_stats stats;
|
||
|
|
|
||
|
|
struct spi_message spi_msg1;
|
||
|
|
struct spi_message spi_msg2;
|
||
|
|
struct spi_transfer spi_xfer1;
|
||
|
|
struct spi_transfer spi_xfer2[2];
|
||
|
|
|
||
|
|
u8 *rx_buffer;
|
||
|
|
u32 buffer_size;
|
||
|
|
u8 sync;
|
||
|
|
|
||
|
|
struct qcafrm_handle frm_handle;
|
||
|
|
struct sk_buff *rx_skb;
|
||
|
|
|
||
|
|
unsigned int intr_req;
|
||
|
|
unsigned int intr_svc;
|
||
|
|
u16 reset_count;
|
||
|
|
|
||
|
|
#ifdef CONFIG_DEBUG_FS
|
||
|
|
struct dentry *device_root;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* user configurable options */
|
||
|
|
u32 clkspeed;
|
||
|
|
u8 legacy_mode;
|
||
|
|
u16 burst_len;
|
||
|
|
};
|
||
|
|
|
||
|
|
int qcaspi_netdev_open(struct net_device *dev);
|
||
|
|
int qcaspi_netdev_close(struct net_device *dev);
|
||
|
|
|
||
|
|
#endif /* _QCA_SPI_H */
|