417 lines
8.5 KiB
C
417 lines
8.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
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* All rights reserved.
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*/
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#include <linux/bitfield.h>
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#include "wlan_if.h"
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#include "wlan.h"
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#include "wlan_cfg.h"
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#include "netdev.h"
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enum cfg_cmd_type {
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CFG_BYTE_CMD = 0,
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CFG_HWORD_CMD = 1,
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CFG_WORD_CMD = 2,
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CFG_STR_CMD = 3,
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CFG_BIN_CMD = 4
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};
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static const struct wilc_cfg_byte g_cfg_byte[] = {
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{WID_STATUS, 0},
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{WID_RSSI, 0},
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{WID_LINKSPEED, 0},
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{WID_TX_POWER, 0},
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{WID_WOWLAN_TRIGGER, 0},
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{WID_NIL, 0}
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};
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static const struct wilc_cfg_hword g_cfg_hword[] = {
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{WID_NIL, 0}
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};
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static const struct wilc_cfg_word g_cfg_word[] = {
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{WID_FAILED_COUNT, 0},
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{WID_RECEIVED_FRAGMENT_COUNT, 0},
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{WID_SUCCESS_FRAME_COUNT, 0},
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{WID_GET_INACTIVE_TIME, 0},
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{WID_NIL, 0}
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};
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static const struct wilc_cfg_str g_cfg_str[] = {
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{WID_FIRMWARE_VERSION, NULL},
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{WID_MAC_ADDR, NULL},
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{WID_ASSOC_RES_INFO, NULL},
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{WID_NIL, NULL}
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};
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#define WILC_RESP_MSG_TYPE_CONFIG_REPLY 'R'
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#define WILC_RESP_MSG_TYPE_STATUS_INFO 'I'
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#define WILC_RESP_MSG_TYPE_NETWORK_INFO 'N'
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#define WILC_RESP_MSG_TYPE_SCAN_COMPLETE 'S'
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/********************************************
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*
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* Configuration Functions
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*
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********************************************/
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static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8)
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{
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if ((offset + 4) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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put_unaligned_le16(1, &frame[offset + 2]);
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frame[offset + 4] = val8;
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return 5;
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}
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static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16)
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{
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if ((offset + 5) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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put_unaligned_le16(2, &frame[offset + 2]);
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put_unaligned_le16(val16, &frame[offset + 4]);
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return 6;
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}
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static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32)
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{
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if ((offset + 7) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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put_unaligned_le16(4, &frame[offset + 2]);
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put_unaligned_le32(val32, &frame[offset + 4]);
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return 8;
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}
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static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str,
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u32 size)
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{
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if ((offset + size + 4) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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put_unaligned_le16(size, &frame[offset + 2]);
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if (str && size != 0)
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memcpy(&frame[offset + 4], str, size);
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return (size + 4);
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}
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static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size)
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{
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u32 i;
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u8 checksum = 0;
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if ((offset + size + 5) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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put_unaligned_le16(size, &frame[offset + 2]);
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if ((b) && size != 0) {
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memcpy(&frame[offset + 4], b, size);
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for (i = 0; i < size; i++)
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checksum += frame[offset + i + 4];
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}
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frame[offset + size + 4] = checksum;
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return (size + 5);
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}
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/********************************************
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*
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* Configuration Response Functions
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*
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********************************************/
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static void wilc_wlan_parse_response_frame(struct wilc *wl, u8 *info, int size)
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{
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u16 wid;
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u32 len = 0, i = 0;
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struct wilc_cfg *cfg = &wl->cfg;
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while (size > 0) {
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i = 0;
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wid = get_unaligned_le16(info);
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switch (FIELD_GET(WILC_WID_TYPE, wid)) {
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case WID_CHAR:
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while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid)
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i++;
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if (cfg->b[i].id == wid)
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cfg->b[i].val = info[4];
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len = 3;
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break;
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case WID_SHORT:
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while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid)
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i++;
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if (cfg->hw[i].id == wid)
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cfg->hw[i].val = get_unaligned_le16(&info[4]);
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len = 4;
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break;
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case WID_INT:
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while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid)
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i++;
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if (cfg->w[i].id == wid)
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cfg->w[i].val = get_unaligned_le32(&info[4]);
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len = 6;
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break;
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case WID_STR:
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while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid)
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i++;
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if (cfg->s[i].id == wid)
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memcpy(cfg->s[i].str, &info[2],
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get_unaligned_le16(&info[2]) + 2);
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len = 2 + get_unaligned_le16(&info[2]);
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break;
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default:
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break;
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}
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size -= (2 + len);
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info += (2 + len);
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}
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}
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static void wilc_wlan_parse_info_frame(struct wilc *wl, u8 *info)
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{
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u32 wid, len;
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wid = get_unaligned_le16(info);
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len = info[2];
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if (len == 1 && wid == WID_STATUS) {
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int i = 0;
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while (wl->cfg.b[i].id != WID_NIL &&
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wl->cfg.b[i].id != wid)
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i++;
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if (wl->cfg.b[i].id == wid)
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wl->cfg.b[i].val = info[3];
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}
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}
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/********************************************
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*
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* Configuration Exported Functions
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*
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********************************************/
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int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size)
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{
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u8 type = FIELD_GET(WILC_WID_TYPE, id);
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int ret = 0;
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switch (type) {
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case CFG_BYTE_CMD:
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if (size >= 1)
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ret = wilc_wlan_cfg_set_byte(frame, offset, id, *buf);
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break;
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case CFG_HWORD_CMD:
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if (size >= 2)
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ret = wilc_wlan_cfg_set_hword(frame, offset, id,
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*((u16 *)buf));
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break;
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case CFG_WORD_CMD:
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if (size >= 4)
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ret = wilc_wlan_cfg_set_word(frame, offset, id,
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*((u32 *)buf));
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break;
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case CFG_STR_CMD:
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ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
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break;
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case CFG_BIN_CMD:
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ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size);
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break;
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}
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return ret;
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}
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int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id)
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{
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if ((offset + 2) >= WILC_MAX_CFG_FRAME_SIZE)
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return 0;
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put_unaligned_le16(id, &frame[offset]);
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return 2;
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}
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int wilc_wlan_cfg_get_val(struct wilc *wl, u16 wid, u8 *buffer,
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u32 buffer_size)
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{
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u8 type = FIELD_GET(WILC_WID_TYPE, wid);
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int i, ret = 0;
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struct wilc_cfg *cfg = &wl->cfg;
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i = 0;
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if (type == CFG_BYTE_CMD) {
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while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid)
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i++;
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if (cfg->b[i].id == wid) {
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memcpy(buffer, &cfg->b[i].val, 1);
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ret = 1;
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}
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} else if (type == CFG_HWORD_CMD) {
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while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid)
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i++;
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if (cfg->hw[i].id == wid) {
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memcpy(buffer, &cfg->hw[i].val, 2);
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ret = 2;
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}
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} else if (type == CFG_WORD_CMD) {
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while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid)
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i++;
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if (cfg->w[i].id == wid) {
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memcpy(buffer, &cfg->w[i].val, 4);
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ret = 4;
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}
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} else if (type == CFG_STR_CMD) {
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while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid)
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i++;
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if (cfg->s[i].id == wid) {
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u16 size = get_unaligned_le16(cfg->s[i].str);
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if (buffer_size >= size) {
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memcpy(buffer, &cfg->s[i].str[2], size);
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ret = size;
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}
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}
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}
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return ret;
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}
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void wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
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struct wilc_cfg_rsp *rsp)
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{
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u8 msg_type;
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u8 msg_id;
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msg_type = frame[0];
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msg_id = frame[1]; /* seq no */
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frame += 4;
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size -= 4;
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rsp->type = 0;
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switch (msg_type) {
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case WILC_RESP_MSG_TYPE_CONFIG_REPLY:
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wilc_wlan_parse_response_frame(wilc, frame, size);
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rsp->type = WILC_CFG_RSP;
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rsp->seq_no = msg_id;
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break;
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case WILC_RESP_MSG_TYPE_STATUS_INFO:
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wilc_wlan_parse_info_frame(wilc, frame);
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rsp->type = WILC_CFG_RSP_STATUS;
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rsp->seq_no = msg_id;
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/* call host interface info parse as well */
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wilc_gnrl_async_info_received(wilc, frame - 4, size + 4);
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break;
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case WILC_RESP_MSG_TYPE_NETWORK_INFO:
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wilc_network_info_received(wilc, frame - 4, size + 4);
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break;
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case WILC_RESP_MSG_TYPE_SCAN_COMPLETE:
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wilc_scan_complete_received(wilc, frame - 4, size + 4);
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break;
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default:
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rsp->seq_no = msg_id;
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break;
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}
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}
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int wilc_wlan_cfg_init(struct wilc *wl)
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{
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struct wilc_cfg_str_vals *str_vals;
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int i = 0;
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wl->cfg.b = kmemdup(g_cfg_byte, sizeof(g_cfg_byte), GFP_KERNEL);
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if (!wl->cfg.b)
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return -ENOMEM;
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wl->cfg.hw = kmemdup(g_cfg_hword, sizeof(g_cfg_hword), GFP_KERNEL);
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if (!wl->cfg.hw)
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goto out_b;
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wl->cfg.w = kmemdup(g_cfg_word, sizeof(g_cfg_word), GFP_KERNEL);
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if (!wl->cfg.w)
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goto out_hw;
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wl->cfg.s = kmemdup(g_cfg_str, sizeof(g_cfg_str), GFP_KERNEL);
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if (!wl->cfg.s)
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goto out_w;
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str_vals = kzalloc(sizeof(*str_vals), GFP_KERNEL);
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if (!str_vals)
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goto out_s;
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wl->cfg.str_vals = str_vals;
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/* store the string cfg parameters */
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wl->cfg.s[i].id = WID_FIRMWARE_VERSION;
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wl->cfg.s[i].str = str_vals->firmware_version;
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i++;
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wl->cfg.s[i].id = WID_MAC_ADDR;
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wl->cfg.s[i].str = str_vals->mac_address;
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i++;
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wl->cfg.s[i].id = WID_ASSOC_RES_INFO;
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wl->cfg.s[i].str = str_vals->assoc_rsp;
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i++;
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wl->cfg.s[i].id = WID_NIL;
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wl->cfg.s[i].str = NULL;
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return 0;
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out_s:
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kfree(wl->cfg.s);
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out_w:
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kfree(wl->cfg.w);
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out_hw:
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kfree(wl->cfg.hw);
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out_b:
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kfree(wl->cfg.b);
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return -ENOMEM;
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}
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void wilc_wlan_cfg_deinit(struct wilc *wl)
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{
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kfree(wl->cfg.b);
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kfree(wl->cfg.hw);
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kfree(wl->cfg.w);
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kfree(wl->cfg.s);
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kfree(wl->cfg.str_vals);
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}
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