Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / net / ethernet / qualcomm / qca_spi.h

diff --git a/kernel/drivers/net/ethernet/qualcomm/qca_spi.h b/kernel/drivers/net/ethernet/qualcomm/qca_spi.h
new file mode 100644 (file)
index 0000000..6e31a0e
--- /dev/null
+++ b/kernel/drivers/net/ethernet/qualcomm/qca_spi.h
@@ -0,0 +1,114 @@
+/*
+ *   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;
+
+#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 */