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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/net/ethernet/qualcomm/qca_spi.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/net/ethernet/qualcomm/qca_spi.h')
-rw-r--r-- | kernel/drivers/net/ethernet/qualcomm/qca_spi.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/kernel/drivers/net/ethernet/qualcomm/qca_spi.h b/kernel/drivers/net/ethernet/qualcomm/qca_spi.h new file mode 100644 index 000000000..6e31a0e74 --- /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 */ |