net: qualcomm: rename qca_framing.c to qca_7k_common.c

As preparation for the upcoming UART driver we need a module
which contains common functions for both interfaces. The module
qca_framing is a good candidate but renaming to qca_7k_common would
make it clear.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 156 deletions

diff --git a/drivers/net/ethernet/qualcomm/qca_framing.c b/drivers/net/ethernet/qualcomm/qca_framing.c
deleted file mode 100644
index 2341f2bf574d..000000000000
--- a/drivers/net/ethernet/qualcomm/qca_framing.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- *   Copyright (c) 2011, 2012, 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.
- */
-
-/*   Atheros ethernet framing. Every Ethernet frame is surrounded
- *   by an atheros frame while transmitted over a serial channel;
- */
-
-#include <linux/kernel.h>
-
-#include "qca_framing.h"
-
-u16
-qcafrm_create_header(u8 *buf, u16 length)
-{
-	__le16 len;
-
-	if (!buf)
-		return 0;
-
-	len = cpu_to_le16(length);
-
-	buf[0] = 0xAA;
-	buf[1] = 0xAA;
-	buf[2] = 0xAA;
-	buf[3] = 0xAA;
-	buf[4] = len & 0xff;
-	buf[5] = (len >> 8) & 0xff;
-	buf[6] = 0;
-	buf[7] = 0;
-
-	return QCAFRM_HEADER_LEN;
-}
-
-u16
-qcafrm_create_footer(u8 *buf)
-{
-	if (!buf)
-		return 0;
-
-	buf[0] = 0x55;
-	buf[1] = 0x55;
-	return QCAFRM_FOOTER_LEN;
-}
-
-/*   Gather received bytes and try to extract a full ethernet frame by
- *   following a simple state machine.
- *
- * Return:   QCAFRM_GATHER       No ethernet frame fully received yet.
- *           QCAFRM_NOHEAD       Header expected but not found.
- *           QCAFRM_INVLEN       Atheros frame length is invalid
- *           QCAFRM_NOTAIL       Footer expected but not found.
- *           > 0                 Number of byte in the fully received
- *                               Ethernet frame
- */
-
-s32
-qcafrm_fsm_decode(struct qcafrm_handle *handle, u8 *buf, u16 buf_len, u8 recv_byte)
-{
-	s32 ret = QCAFRM_GATHER;
-	u16 len;
-
-	switch (handle->state) {
-	case QCAFRM_HW_LEN0:
-	case QCAFRM_HW_LEN1:
-		/* by default, just go to next state */
-		handle->state--;
-
-		if (recv_byte != 0x00) {
-			/* first two bytes of length must be 0 */
-			handle->state = QCAFRM_HW_LEN0;
-		}
-		break;
-	case QCAFRM_HW_LEN2:
-	case QCAFRM_HW_LEN3:
-		handle->state--;
-		break;
-	/* 4 bytes header pattern */
-	case QCAFRM_WAIT_AA1:
-	case QCAFRM_WAIT_AA2:
-	case QCAFRM_WAIT_AA3:
-	case QCAFRM_WAIT_AA4:
-		if (recv_byte != 0xAA) {
-			ret = QCAFRM_NOHEAD;
-			handle->state = QCAFRM_HW_LEN0;
-		} else {
-			handle->state--;
-		}
-		break;
-		/* 2 bytes length. */
-		/* Borrow offset field to hold length for now. */
-	case QCAFRM_WAIT_LEN_BYTE0:
-		handle->offset = recv_byte;
-		handle->state = QCAFRM_WAIT_LEN_BYTE1;
-		break;
-	case QCAFRM_WAIT_LEN_BYTE1:
-		handle->offset = handle->offset | (recv_byte << 8);
-		handle->state = QCAFRM_WAIT_RSVD_BYTE1;
-		break;
-	case QCAFRM_WAIT_RSVD_BYTE1:
-		handle->state = QCAFRM_WAIT_RSVD_BYTE2;
-		break;
-	case QCAFRM_WAIT_RSVD_BYTE2:
-		len = handle->offset;
-		if (len > buf_len || len < QCAFRM_MIN_LEN) {
-			ret = QCAFRM_INVLEN;
-			handle->state = QCAFRM_HW_LEN0;
-		} else {
-			handle->state = (enum qcafrm_state)(len + 1);
-			/* Remaining number of bytes. */
-			handle->offset = 0;
-		}
-		break;
-	default:
-		/* Receiving Ethernet frame itself. */
-		buf[handle->offset] = recv_byte;
-		handle->offset++;
-		handle->state--;
-		break;
-	case QCAFRM_WAIT_551:
-		if (recv_byte != 0x55) {
-			ret = QCAFRM_NOTAIL;
-			handle->state = QCAFRM_HW_LEN0;
-		} else {
-			handle->state = QCAFRM_WAIT_552;
-		}
-		break;
-	case QCAFRM_WAIT_552:
-		if (recv_byte != 0x55) {
-			ret = QCAFRM_NOTAIL;
-			handle->state = QCAFRM_HW_LEN0;
-		} else {
-			ret = handle->offset;
-			/* Frame is fully received. */
-			handle->state = QCAFRM_HW_LEN0;
-		}
-		break;
-	}
-
-	return ret;
-}