Import Mbed OS hard-float snapshot

targets/TARGET_Samsung/TARGET_SIDK_S5JS100/modem/exynos_ipc.h

@@ -0,0 +1,228 @@
+/****************************************************************************
+ *
+ * Copyright 2020 Samsung Electronics All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __EXYNOS_IPC_H__
+#define __EXYNOS_IPC_H__
+
+#define EXYNOS_SINGLE_MASK          (0b11000000)
+#define EXYNOS_MULTI_START_MASK (0b10000000)
+#define EXYNOS_MULTI_LAST_MASK      (0b01000000)
+
+#define EXYNOS_START_MASK           0xABCD
+#define EXYNOS_START_OFFSET     0
+#define EXYNOS_START_SIZE           2
+
+#define EXYNOS_FRAME_SEQ_OFFSET 2
+#define EXYNOS_FRAME_SIZE           2
+
+#define EXYNOS_FRAG_CONFIG_OFFSET   4
+#define EXYNOS_FRAG_CONFIG_SIZE 2
+
+#define EXYNOS_LEN_OFFSET           6
+#define EXYNOS_LEN_SIZE         2
+
+#define EXYNOS_CH_ID_OFFSET     8
+#define EXYNOS_CH_SIZE              1
+
+#define EXYNOS_CH_SEQ_OFFSET        9
+#define EXYNOS_CH_SEQ_SIZE          1
+
+#define EXYNOS_HEADER_SIZE      12
+
+#define EXYNOS_DATA_LOOPBACK_CHANNEL    82
+
+#define EXYNOS_FMT_NUM      1
+#define EXYNOS_RFS_NUM      10
+
+enum exynos_ch_id {
+    EXYNOS_CH_ID_MULTIPDP = 0,
+
+    EXYNOS_CH_ID_PDP_0 = 1,    /*rmnet0*/
+    EXYNOS_CH_ID_PDP_1,
+    EXYNOS_CH_ID_PDP_2,
+    EXYNOS_CH_ID_PDP_3,
+    EXYNOS_CH_ID_PDP_4,
+
+    EXYNOS_CH_ID_FMT_0 = 245,   /*umts_ipc0*/
+    EXYNOS_CH_ID_MAX = 255,
+    EXYNOS_CH_ID_FLOW_CTRL = 255
+};
+
+struct __attribute__((packed)) frag_config {
+    unsigned char frame_first: 1,
+             frame_last: 1,
+             packet_index: 6;
+    unsigned char frame_index;
+};
+
+/* EXYNOS link-layer header */
+struct  __attribute__((packed)) exynos_link_header {
+    unsigned short seq;
+    struct frag_config cfg;
+    unsigned short len;
+    unsigned short reserved_1;
+    unsigned char ch_id;
+    unsigned char ch_seq;
+    unsigned short reserved_2;
+};
+
+struct exynos_frame_data {
+    /* Frame length calculated from the length fields */
+    unsigned int len;
+
+    /* The length of link layer header */
+    unsigned int hdr_len;
+
+    /* The length of received header */
+    unsigned int hdr_rcvd;
+
+    /* The length of link layer payload */
+    unsigned int pay_len;
+
+    /* The length of received data */
+    unsigned int pay_rcvd;
+
+    /* The length of link layer padding */
+    unsigned int pad_len;
+
+    /* The length of received padding */
+    unsigned int pad_rcvd;
+
+    /* Header buffer */
+    unsigned char hdr[EXYNOS_HEADER_SIZE];
+};
+
+static inline bool exynos_start_valid(unsigned char *frm)
+{
+    unsigned short cfg = *(unsigned short *)(frm + EXYNOS_START_OFFSET);
+    return cfg == EXYNOS_START_MASK ? true : false;
+}
+
+static inline bool exynos_multi_start_valid(unsigned char *frm)
+{
+    unsigned short cfg = *(unsigned short *)(frm + EXYNOS_FRAG_CONFIG_OFFSET);
+    return ((cfg >> 8) & EXYNOS_MULTI_START_MASK) == EXYNOS_MULTI_START_MASK;
+}
+
+static inline bool exynos_multi_last_valid(unsigned char *frm)
+{
+    unsigned short cfg = *(unsigned short *)(frm + EXYNOS_FRAG_CONFIG_OFFSET);
+    return ((cfg >> 8) & EXYNOS_MULTI_LAST_MASK) == EXYNOS_MULTI_LAST_MASK;
+}
+
+static inline bool exynos_single_frame(unsigned char *frm)
+{
+    unsigned short cfg = *(unsigned short *)(frm + EXYNOS_FRAG_CONFIG_OFFSET);
+    return ((cfg >> 8) & EXYNOS_SINGLE_MASK) == EXYNOS_SINGLE_MASK;
+}
+
+static inline unsigned char exynos_get_ch(unsigned char *frm)
+{
+    return frm[EXYNOS_CH_ID_OFFSET];
+}
+
+static inline unsigned int exynos_get_frame_seq(unsigned char *frm)
+{
+    unsigned short cfg = *(unsigned short *)(frm + EXYNOS_FRAME_SEQ_OFFSET);
+    return cfg;
+}
+
+static inline unsigned int exynos_get_ch_seq(unsigned char *frm)
+{
+    return frm[EXYNOS_CH_SEQ_OFFSET];
+}
+
+static inline unsigned int exynos_calc_padding_size(unsigned int len)
+{
+    unsigned int residue = len & 0x3;
+    return residue ? (4 - residue) : 0;
+}
+
+static inline unsigned int exynos_get_frame_len(unsigned char *frm)
+{
+    return (unsigned int) * (unsigned short *)(frm + EXYNOS_LEN_OFFSET);
+}
+
+static inline bool exynos_fmt_ch(unsigned char ch)
+{
+    return (ch == EXYNOS_CH_ID_FMT_0) ? true : false;
+}
+
+static inline bool exynos_ps_ch(unsigned char ch)
+{
+    return (ch >= EXYNOS_CH_ID_PDP_0 && ch <= EXYNOS_CH_ID_PDP_4) ?
+           true : false;
+}
+
+static inline unsigned int exynos_get_total_len(unsigned char *frm)
+{
+    unsigned int len;
+    unsigned int pad;
+
+    len = exynos_get_frame_len(frm);
+    pad = exynos_calc_padding_size(len) ? exynos_calc_padding_size(len) : 0;
+    return len + pad;
+}
+
+static inline bool exynos_padding_exist(unsigned char *frm)
+{
+    return exynos_calc_padding_size(exynos_get_frame_len(frm)) ? true : false;
+}
+
+typedef struct {
+    int ch;
+    int len;
+    unsigned char *data;
+    unsigned char *header;
+    short pad;
+    short dalloc;
+} mio_buf;
+
+inline mio_buf *alloc_mio_buf(int len)
+{
+    mio_buf *mio;
+
+    mio = (mio_buf *)malloc(sizeof(mio_buf));
+    if (mio == NULL) {
+        return NULL;
+    }
+
+    if (len != 0) {
+        mio->data = (unsigned char *)malloc(len);
+        if (mio->data == NULL) {
+            free(mio);
+            return NULL;
+        }
+        mio->dalloc = 1;
+    } else {
+        mio->dalloc = 0;
+    }
+
+    return mio;
+}
+
+inline void free_mio_buf(mio_buf *mio)
+{
+    if (mio->dalloc != 0) {
+        free(mio->data);
+    }
+    free(mio);
+}
+
+#endif