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From:   <Ajay.Kathat@microchip.com>
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        <Claudiu.Beznea@microchip.com>, <Venkateswara.Kaja@microchip.com>,
        <Ajay.Kathat@microchip.com>
Subject: [PATCH v4 05/18] wilc1000: add wlan_cfg.c
Thread-Topic: [PATCH v4 05/18] wilc1000: add wlan_cfg.c
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Date:   Mon, 2 Mar 2020 16:34:33 +0000
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From: Ajay Singh <ajay.kathat@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@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/n=
et/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 subsidiari=
es.
+ * 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	=3D 0,
+	CFG_HWORD_CMD	=3D 1,
+	CFG_WORD_CMD	=3D 2,
+	CFG_STR_CMD	=3D 3,
+	CFG_BIN_CMD	=3D 4
+};
+
+static const struct wilc_cfg_byte g_cfg_byte[] =3D {
+	{WID_STATUS, 0},
+	{WID_RSSI, 0},
+	{WID_LINKSPEED, 0},
+	{WID_NIL, 0}
+};
+
+static const struct wilc_cfg_hword g_cfg_hword[] =3D {
+	{WID_NIL, 0}
+};
+
+static const struct wilc_cfg_word g_cfg_word[] =3D {
+	{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[] =3D {
+	{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) >=3D WILC_MAX_CFG_FRAME_SIZE)
+		return 0;
+
+	put_unaligned_le16(id, &frame[offset]);
+	put_unaligned_le16(1, &frame[offset + 2]);
+	frame[offset + 4] =3D val8;
+	return 5;
+}
+
+static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val1=
6)
+{
+	if ((offset + 5) >=3D 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) >=3D 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) >=3D WILC_MAX_CFG_FRAME_SIZE)
+		return 0;
+
+	put_unaligned_le16(id, &frame[offset]);
+	put_unaligned_le16(size, &frame[offset + 2]);
+	if (str && size !=3D 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 =3D 0;
+
+	if ((offset + size + 5) >=3D WILC_MAX_CFG_FRAME_SIZE)
+		return 0;
+
+	put_unaligned_le16(id, &frame[offset]);
+	put_unaligned_le16(size, &frame[offset + 2]);
+
+	if ((b) && size !=3D 0) {
+		memcpy(&frame[offset + 4], b, size);
+		for (i =3D 0; i < size; i++)
+			checksum +=3D frame[offset + i + 4];
+	}
+
+	frame[offset + size + 4] =3D 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 =3D 0, i =3D 0;
+	struct wilc_cfg *cfg =3D &wl->cfg;
+
+	while (size > 0) {
+		i =3D 0;
+		wid =3D get_unaligned_le16(info);
+
+		switch (FIELD_GET(WILC_WID_TYPE, wid)) {
+		case WID_CHAR:
+			while (cfg->b[i].id !=3D WID_NIL && cfg->b[i].id !=3D wid)
+				i++;
+
+			if (cfg->b[i].id =3D=3D wid)
+				cfg->b[i].val =3D info[4];
+
+			len =3D 3;
+			break;
+
+		case WID_SHORT:
+			while (cfg->hw[i].id !=3D WID_NIL && cfg->hw[i].id !=3D wid)
+				i++;
+
+			if (cfg->hw[i].id =3D=3D wid)
+				cfg->hw[i].val =3D get_unaligned_le16(&info[4]);
+
+			len =3D 4;
+			break;
+
+		case WID_INT:
+			while (cfg->w[i].id !=3D WID_NIL && cfg->w[i].id !=3D wid)
+				i++;
+
+			if (cfg->w[i].id =3D=3D wid)
+				cfg->w[i].val =3D get_unaligned_le32(&info[4]);
+
+			len =3D 6;
+			break;
+
+		case WID_STR:
+			while (cfg->s[i].id !=3D WID_NIL && cfg->s[i].id !=3D wid)
+				i++;
+
+			if (cfg->s[i].id =3D=3D wid)
+				memcpy(cfg->s[i].str, &info[2], info[2] + 2);
+
+			len =3D 2 + info[2];
+			break;
+
+		default:
+			break;
+		}
+		size -=3D (2 + len);
+		info +=3D (2 + len);
+	}
+}
+
+static void wilc_wlan_parse_info_frame(struct wilc *wl, u8 *info)
+{
+	u32 wid, len;
+
+	wid =3D get_unaligned_le16(info);
+
+	len =3D info[2];
+
+	if (len =3D=3D 1 && wid =3D=3D WID_STATUS) {
+		int i =3D 0;
+
+		while (wl->cfg.b[i].id !=3D WID_NIL &&
+		       wl->cfg.b[i].id !=3D wid)
+			i++;
+
+		if (wl->cfg.b[i].id =3D=3D wid)
+			wl->cfg.b[i].val =3D info[3];
+	}
+}
+
+/********************************************
+ *
+ *      Configuration Exported Functions
+ *
+ ********************************************/
+
+int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size=
)
+{
+	u8 type =3D FIELD_GET(WILC_WID_TYPE, id);
+	int ret =3D 0;
+
+	switch (type) {
+	case CFG_BYTE_CMD:
+		if (size >=3D 1)
+			ret =3D wilc_wlan_cfg_set_byte(frame, offset, id, *buf);
+		break;
+
+	case CFG_HWORD_CMD:
+		if (size >=3D 2)
+			ret =3D wilc_wlan_cfg_set_hword(frame, offset, id,
+						      *((u16 *)buf));
+		break;
+
+	case CFG_WORD_CMD:
+		if (size >=3D 4)
+			ret =3D wilc_wlan_cfg_set_word(frame, offset, id,
+						     *((u32 *)buf));
+		break;
+
+	case CFG_STR_CMD:
+		ret =3D wilc_wlan_cfg_set_str(frame, offset, id, buf, size);
+		break;
+
+	case CFG_BIN_CMD:
+		ret =3D 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) >=3D 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 =3D FIELD_GET(WILC_WID_TYPE, wid);
+	int i, ret =3D 0;
+	struct wilc_cfg *cfg =3D &wl->cfg;
+
+	i =3D 0;
+	if (type =3D=3D CFG_BYTE_CMD) {
+		while (cfg->b[i].id !=3D WID_NIL && cfg->b[i].id !=3D wid)
+			i++;
+
+		if (cfg->b[i].id =3D=3D wid) {
+			memcpy(buffer, &cfg->b[i].val, 1);
+			ret =3D 1;
+		}
+	} else if (type =3D=3D CFG_HWORD_CMD) {
+		while (cfg->hw[i].id !=3D WID_NIL && cfg->hw[i].id !=3D wid)
+			i++;
+
+		if (cfg->hw[i].id =3D=3D wid) {
+			memcpy(buffer, &cfg->hw[i].val, 2);
+			ret =3D 2;
+		}
+	} else if (type =3D=3D CFG_WORD_CMD) {
+		while (cfg->w[i].id !=3D WID_NIL && cfg->w[i].id !=3D wid)
+			i++;
+
+		if (cfg->w[i].id =3D=3D wid) {
+			memcpy(buffer, &cfg->w[i].val, 4);
+			ret =3D 4;
+		}
+	} else if (type =3D=3D CFG_STR_CMD) {
+		while (cfg->s[i].id !=3D WID_NIL && cfg->s[i].id !=3D wid)
+			i++;
+
+		if (cfg->s[i].id =3D=3D wid) {
+			u16 size =3D get_unaligned_le16(cfg->s[i].str);
+
+			if (buffer_size >=3D size) {
+				memcpy(buffer, &cfg->s[i].str[2], size);
+				ret =3D 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 =3D frame[0];
+	msg_id =3D frame[1];      /* seq no */
+	frame +=3D 4;
+	size -=3D 4;
+	rsp->type =3D 0;
+
+	switch (msg_type) {
+	case WILC_RESP_MSG_TYPE_CONFIG_REPLY:
+		wilc_wlan_parse_response_frame(wilc, frame, size);
+		rsp->type =3D WILC_CFG_RSP;
+		rsp->seq_no =3D msg_id;
+		break;
+
+	case WILC_RESP_MSG_TYPE_STATUS_INFO:
+		wilc_wlan_parse_info_frame(wilc, frame);
+		rsp->type =3D WILC_CFG_RSP_STATUS;
+		rsp->seq_no =3D 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 =3D msg_id;
+		break;
+	}
+}
+
+int wilc_wlan_cfg_init(struct wilc *wl)
+{
+	struct wilc_cfg_str_vals *str_vals;
+	int i =3D 0;
+
+	wl->cfg.b =3D kmemdup(g_cfg_byte, sizeof(g_cfg_byte), GFP_KERNEL);
+	if (!wl->cfg.b)
+		return -ENOMEM;
+
+	wl->cfg.hw =3D kmemdup(g_cfg_hword, sizeof(g_cfg_hword), GFP_KERNEL);
+	if (!wl->cfg.hw)
+		goto out_b;
+
+	wl->cfg.w =3D kmemdup(g_cfg_word, sizeof(g_cfg_word), GFP_KERNEL);
+	if (!wl->cfg.w)
+		goto out_hw;
+
+	wl->cfg.s =3D kmemdup(g_cfg_str, sizeof(g_cfg_str), GFP_KERNEL);
+	if (!wl->cfg.s)
+		goto out_w;
+
+	str_vals =3D kzalloc(sizeof(*str_vals), GFP_KERNEL);
+	if (!str_vals)
+		goto out_s;
+
+	wl->cfg.str_vals =3D str_vals;
+	/* store the string cfg parameters */
+	wl->cfg.s[i].id =3D WID_FIRMWARE_VERSION;
+	wl->cfg.s[i].str =3D str_vals->firmware_version;
+	i++;
+	wl->cfg.s[i].id =3D WID_MAC_ADDR;
+	wl->cfg.s[i].str =3D str_vals->mac_address;
+	i++;
+	wl->cfg.s[i].id =3D WID_ASSOC_RES_INFO;
+	wl->cfg.s[i].str =3D str_vals->assoc_rsp;
+	i++;
+	wl->cfg.s[i].id =3D WID_NIL;
+	wl->cfg.s[i].str =3D 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);
+}
--=20
2.24.0