[PATCH v5 05/17] wilc1000: add wlan_cfg.c
Ajay.Kathat at microchip.com
Ajay.Kathat at microchip.com
Wed Mar 11 12:18:43 UTC 2020
From: Ajay Singh <ajay.kathat at microchip.com>
Moved 'drivers/staging/wilc1000/wlan_cfg.c' to
'drivers/net/wireless/microchip/wilc1000/wlan_cfg.c'.
Signed-off-by: Ajay Singh <ajay.kathat at microchip.com>
---
.../wireless/microchip/wilc1000/wlan_cfg.c | 413 ++++++++++++++++++
1 file changed, 413 insertions(+)
create mode 100644 drivers/net/wireless/microchip/wilc1000/wlan_cfg.c
diff --git a/drivers/net/wireless/microchip/wilc1000/wlan_cfg.c b/drivers/net/wireless/microchip/wilc1000/wlan_cfg.c
new file mode 100644
index 000000000000..fe2a7ed8e5cd
--- /dev/null
+++ b/drivers/net/wireless/microchip/wilc1000/wlan_cfg.c
@@ -0,0 +1,413 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
+ * All rights reserved.
+ */
+
+#include <linux/bitfield.h>
+#include "wlan_if.h"
+#include "wlan.h"
+#include "wlan_cfg.h"
+#include "netdev.h"
+
+enum cfg_cmd_type {
+ CFG_BYTE_CMD = 0,
+ CFG_HWORD_CMD = 1,
+ CFG_WORD_CMD = 2,
+ CFG_STR_CMD = 3,
+ CFG_BIN_CMD = 4
+};
+
+static const struct wilc_cfg_byte g_cfg_byte[] = {
+ {WID_STATUS, 0},
+ {WID_RSSI, 0},
+ {WID_LINKSPEED, 0},
+ {WID_NIL, 0}
+};
+
+static const struct wilc_cfg_hword g_cfg_hword[] = {
+ {WID_NIL, 0}
+};
+
+static const struct wilc_cfg_word g_cfg_word[] = {
+ {WID_FAILED_COUNT, 0},
+ {WID_RECEIVED_FRAGMENT_COUNT, 0},
+ {WID_SUCCESS_FRAME_COUNT, 0},
+ {WID_GET_INACTIVE_TIME, 0},
+ {WID_NIL, 0}
+
+};
+
+static const struct wilc_cfg_str g_cfg_str[] = {
+ {WID_FIRMWARE_VERSION, NULL},
+ {WID_MAC_ADDR, NULL},
+ {WID_ASSOC_RES_INFO, NULL},
+ {WID_NIL, NULL}
+};
+
+#define WILC_RESP_MSG_TYPE_CONFIG_REPLY 'R'
+#define WILC_RESP_MSG_TYPE_STATUS_INFO 'I'
+#define WILC_RESP_MSG_TYPE_NETWORK_INFO 'N'
+#define WILC_RESP_MSG_TYPE_SCAN_COMPLETE 'S'
+
+/********************************************
+ *
+ * Configuration Functions
+ *
+ ********************************************/
+
+static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8)
+{
+ if ((offset + 4) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+ put_unaligned_le16(1, &frame[offset + 2]);
+ frame[offset + 4] = val8;
+ return 5;
+}
+
+static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16)
+{
+ if ((offset + 5) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+ put_unaligned_le16(2, &frame[offset + 2]);
+ put_unaligned_le16(val16, &frame[offset + 4]);
+
+ return 6;
+}
+
+static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32)
+{
+ if ((offset + 7) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+ put_unaligned_le16(4, &frame[offset + 2]);
+ put_unaligned_le32(val32, &frame[offset + 4]);
+
+ return 8;
+}
+
+static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str,
+ u32 size)
+{
+ if ((offset + size + 4) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+ put_unaligned_le16(size, &frame[offset + 2]);
+ if (str && size != 0)
+ memcpy(&frame[offset + 4], str, size);
+
+ return (size + 4);
+}
+
+static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size)
+{
+ u32 i;
+ u8 checksum = 0;
+
+ if ((offset + size + 5) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+ put_unaligned_le16(size, &frame[offset + 2]);
+
+ if ((b) && size != 0) {
+ memcpy(&frame[offset + 4], b, size);
+ for (i = 0; i < size; i++)
+ checksum += frame[offset + i + 4];
+ }
+
+ frame[offset + size + 4] = checksum;
+
+ return (size + 5);
+}
+
+/********************************************
+ *
+ * Configuration Response Functions
+ *
+ ********************************************/
+
+static void wilc_wlan_parse_response_frame(struct wilc *wl, u8 *info, int size)
+{
+ u16 wid;
+ u32 len = 0, i = 0;
+ struct wilc_cfg *cfg = &wl->cfg;
+
+ while (size > 0) {
+ i = 0;
+ wid = get_unaligned_le16(info);
+
+ switch (FIELD_GET(WILC_WID_TYPE, wid)) {
+ case WID_CHAR:
+ while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid)
+ i++;
+
+ if (cfg->b[i].id == wid)
+ cfg->b[i].val = info[4];
+
+ len = 3;
+ break;
+
+ case WID_SHORT:
+ while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid)
+ i++;
+
+ if (cfg->hw[i].id == wid)
+ cfg->hw[i].val = get_unaligned_le16(&info[4]);
+
+ len = 4;
+ break;
+
+ case WID_INT:
+ while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid)
+ i++;
+
+ if (cfg->w[i].id == wid)
+ cfg->w[i].val = get_unaligned_le32(&info[4]);
+
+ len = 6;
+ break;
+
+ case WID_STR:
+ while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid)
+ i++;
+
+ if (cfg->s[i].id == wid)
+ memcpy(cfg->s[i].str, &info[2], info[2] + 2);
+
+ len = 2 + info[2];
+ break;
+
+ default:
+ break;
+ }
+ size -= (2 + len);
+ info += (2 + len);
+ }
+}
+
+static void wilc_wlan_parse_info_frame(struct wilc *wl, u8 *info)
+{
+ u32 wid, len;
+
+ wid = get_unaligned_le16(info);
+
+ len = info[2];
+
+ if (len == 1 && wid == WID_STATUS) {
+ int i = 0;
+
+ while (wl->cfg.b[i].id != WID_NIL &&
+ wl->cfg.b[i].id != wid)
+ i++;
+
+ if (wl->cfg.b[i].id == wid)
+ wl->cfg.b[i].val = info[3];
+ }
+}
+
+/********************************************
+ *
+ * Configuration Exported Functions
+ *
+ ********************************************/
+
+int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size)
+{
+ u8 type = FIELD_GET(WILC_WID_TYPE, id);
+ int ret = 0;
+
+ switch (type) {
+ case CFG_BYTE_CMD:
+ if (size >= 1)
+ ret = wilc_wlan_cfg_set_byte(frame, offset, id, *buf);
+ break;
+
+ case CFG_HWORD_CMD:
+ if (size >= 2)
+ ret = wilc_wlan_cfg_set_hword(frame, offset, id,
+ *((u16 *)buf));
+ break;
+
+ case CFG_WORD_CMD:
+ if (size >= 4)
+ ret = wilc_wlan_cfg_set_word(frame, offset, id,
+ *((u32 *)buf));
+ break;
+
+ case CFG_STR_CMD:
+ ret = wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
+ break;
+
+ case CFG_BIN_CMD:
+ ret = wilc_wlan_cfg_set_bin(frame, offset, id, buf, size);
+ break;
+ }
+
+ return ret;
+}
+
+int wilc_wlan_cfg_get_wid(u8 *frame, u32 offset, u16 id)
+{
+ if ((offset + 2) >= WILC_MAX_CFG_FRAME_SIZE)
+ return 0;
+
+ put_unaligned_le16(id, &frame[offset]);
+
+ return 2;
+}
+
+int wilc_wlan_cfg_get_val(struct wilc *wl, u16 wid, u8 *buffer,
+ u32 buffer_size)
+{
+ u8 type = FIELD_GET(WILC_WID_TYPE, wid);
+ int i, ret = 0;
+ struct wilc_cfg *cfg = &wl->cfg;
+
+ i = 0;
+ if (type == CFG_BYTE_CMD) {
+ while (cfg->b[i].id != WID_NIL && cfg->b[i].id != wid)
+ i++;
+
+ if (cfg->b[i].id == wid) {
+ memcpy(buffer, &cfg->b[i].val, 1);
+ ret = 1;
+ }
+ } else if (type == CFG_HWORD_CMD) {
+ while (cfg->hw[i].id != WID_NIL && cfg->hw[i].id != wid)
+ i++;
+
+ if (cfg->hw[i].id == wid) {
+ memcpy(buffer, &cfg->hw[i].val, 2);
+ ret = 2;
+ }
+ } else if (type == CFG_WORD_CMD) {
+ while (cfg->w[i].id != WID_NIL && cfg->w[i].id != wid)
+ i++;
+
+ if (cfg->w[i].id == wid) {
+ memcpy(buffer, &cfg->w[i].val, 4);
+ ret = 4;
+ }
+ } else if (type == CFG_STR_CMD) {
+ while (cfg->s[i].id != WID_NIL && cfg->s[i].id != wid)
+ i++;
+
+ if (cfg->s[i].id == wid) {
+ u16 size = get_unaligned_le16(cfg->s[i].str);
+
+ if (buffer_size >= size) {
+ memcpy(buffer, &cfg->s[i].str[2], size);
+ ret = size;
+ }
+ }
+ }
+ return ret;
+}
+
+void wilc_wlan_cfg_indicate_rx(struct wilc *wilc, u8 *frame, int size,
+ struct wilc_cfg_rsp *rsp)
+{
+ u8 msg_type;
+ u8 msg_id;
+
+ msg_type = frame[0];
+ msg_id = frame[1]; /* seq no */
+ frame += 4;
+ size -= 4;
+ rsp->type = 0;
+
+ switch (msg_type) {
+ case WILC_RESP_MSG_TYPE_CONFIG_REPLY:
+ wilc_wlan_parse_response_frame(wilc, frame, size);
+ rsp->type = WILC_CFG_RSP;
+ rsp->seq_no = msg_id;
+ break;
+
+ case WILC_RESP_MSG_TYPE_STATUS_INFO:
+ wilc_wlan_parse_info_frame(wilc, frame);
+ rsp->type = WILC_CFG_RSP_STATUS;
+ rsp->seq_no = msg_id;
+ /* call host interface info parse as well */
+ wilc_gnrl_async_info_received(wilc, frame - 4, size + 4);
+ break;
+
+ case WILC_RESP_MSG_TYPE_NETWORK_INFO:
+ wilc_network_info_received(wilc, frame - 4, size + 4);
+ break;
+
+ case WILC_RESP_MSG_TYPE_SCAN_COMPLETE:
+ wilc_scan_complete_received(wilc, frame - 4, size + 4);
+ break;
+
+ default:
+ rsp->seq_no = msg_id;
+ break;
+ }
+}
+
+int wilc_wlan_cfg_init(struct wilc *wl)
+{
+ struct wilc_cfg_str_vals *str_vals;
+ int i = 0;
+
+ wl->cfg.b = kmemdup(g_cfg_byte, sizeof(g_cfg_byte), GFP_KERNEL);
+ if (!wl->cfg.b)
+ return -ENOMEM;
+
+ wl->cfg.hw = kmemdup(g_cfg_hword, sizeof(g_cfg_hword), GFP_KERNEL);
+ if (!wl->cfg.hw)
+ goto out_b;
+
+ wl->cfg.w = kmemdup(g_cfg_word, sizeof(g_cfg_word), GFP_KERNEL);
+ if (!wl->cfg.w)
+ goto out_hw;
+
+ wl->cfg.s = kmemdup(g_cfg_str, sizeof(g_cfg_str), GFP_KERNEL);
+ if (!wl->cfg.s)
+ goto out_w;
+
+ str_vals = kzalloc(sizeof(*str_vals), GFP_KERNEL);
+ if (!str_vals)
+ goto out_s;
+
+ wl->cfg.str_vals = str_vals;
+ /* store the string cfg parameters */
+ wl->cfg.s[i].id = WID_FIRMWARE_VERSION;
+ wl->cfg.s[i].str = str_vals->firmware_version;
+ i++;
+ wl->cfg.s[i].id = WID_MAC_ADDR;
+ wl->cfg.s[i].str = str_vals->mac_address;
+ i++;
+ wl->cfg.s[i].id = WID_ASSOC_RES_INFO;
+ wl->cfg.s[i].str = str_vals->assoc_rsp;
+ i++;
+ wl->cfg.s[i].id = WID_NIL;
+ wl->cfg.s[i].str = NULL;
+ return 0;
+
+out_s:
+ kfree(wl->cfg.s);
+out_w:
+ kfree(wl->cfg.w);
+out_hw:
+ kfree(wl->cfg.hw);
+out_b:
+ kfree(wl->cfg.b);
+ return -ENOMEM;
+}
+
+void wilc_wlan_cfg_deinit(struct wilc *wl)
+{
+ kfree(wl->cfg.b);
+ kfree(wl->cfg.hw);
+ kfree(wl->cfg.w);
+ kfree(wl->cfg.s);
+ kfree(wl->cfg.str_vals);
+}
--
2.24.0
More information about the devel
mailing list