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Fri, 12 Jul 2019 01:58:54 +0000 From: To: CC: , , , , , , , Subject: [PATCH v2 05/16] wilc1000: add wilc_wlan_cfg.c Thread-Topic: [PATCH v2 05/16] wilc1000: add wilc_wlan_cfg.c Thread-Index: AQHVOFVbjOwWdHElO0GO3dM32GKxng== Date: Fri, 12 Jul 2019 01:58:54 +0000 Message-ID: <1562896697-8002-6-git-send-email-ajay.kathat@microchip.com> References: <1562896697-8002-1-git-send-email-ajay.kathat@microchip.com> In-Reply-To: <1562896697-8002-1-git-send-email-ajay.kathat@microchip.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: BM1PR0101CA0026.INDPRD01.PROD.OUTLOOK.COM (2603:1096:b00:1a::12) To BN6PR11MB3985.namprd11.prod.outlook.com (2603:10b6:405:7b::14) x-mailer: git-send-email 2.7.4 x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [49.205.218.233] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 94dc806c-bc76-4431-f899-08d7066c7e1c x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(2017052603328)(7193020);SRVR:BN6PR11MB1425; 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Signed-off-by: Ajay Singh --- .../wireless/microchip/wilc1000/wilc_wlan_cfg.c | 495 +++++++++++++++++++++ 1 file changed, 495 insertions(+) create mode 100644 drivers/net/wireless/microchip/wilc1000/wilc_wlan_cfg.c diff --git a/drivers/net/wireless/microchip/wilc1000/wilc_wlan_cfg.c b/drivers/net/wireless/microchip/wilc1000/wilc_wlan_cfg.c new file mode 100644 index 0000000..9dc5de4 --- /dev/null +++ b/drivers/net/wireless/microchip/wilc1000/wilc_wlan_cfg.c @@ -0,0 +1,495 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. + * All rights reserved. + */ + +#include "wilc_wlan_if.h" +#include "wilc_wlan.h" +#include "wilc_wlan_cfg.h" +#include "wilc_wfi_netdevice.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} +}; + +/******************************************** + * + * Configuration Functions + * + ********************************************/ + +static int wilc_wlan_cfg_set_byte(u8 *frame, u32 offset, u16 id, u8 val8) +{ + u8 *buf; + + if ((offset + 4) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + buf[2] = 1; + buf[3] = 0; + buf[4] = val8; + return 5; +} + +static int wilc_wlan_cfg_set_hword(u8 *frame, u32 offset, u16 id, u16 val16) +{ + u8 *buf; + + if ((offset + 5) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + buf[2] = 2; + buf[3] = 0; + buf[4] = (u8)val16; + buf[5] = (u8)(val16 >> 8); + + return 6; +} + +static int wilc_wlan_cfg_set_word(u8 *frame, u32 offset, u16 id, u32 val32) +{ + u8 *buf; + + if ((offset + 7) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + buf[2] = 4; + buf[3] = 0; + buf[4] = (u8)val32; + buf[5] = (u8)(val32 >> 8); + buf[6] = (u8)(val32 >> 16); + buf[7] = (u8)(val32 >> 24); + + return 8; +} + +static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str, + u32 size) +{ + u8 *buf; + + if ((offset + size + 4) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + buf[2] = (u8)size; + buf[3] = (u8)(size >> 8); + + if (str && size != 0) + memcpy(&buf[4], str, size); + + return (size + 4); +} + +static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size) +{ + u8 *buf; + u32 i; + u8 checksum = 0; + + if ((offset + size + 5) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + buf[2] = (u8)size; + buf[3] = (u8)(size >> 8); + + if ((b) && size != 0) { + memcpy(&buf[4], b, size); + for (i = 0; i < size; i++) + checksum += buf[i + 4]; + } + + buf[size + 4] = checksum; + + return (size + 5); +} + +/******************************************** + * + * Configuration Response Functions + * + ********************************************/ + +#define GET_WID_TYPE(wid) (((wid) >> 12) & 0x7) +static void wilc_wlan_parse_response_frame(struct wilc *wl, u8 *info, int size) +{ + u16 wid; + u32 len = 0, i = 0; + + while (size > 0) { + i = 0; + wid = get_unaligned_le16(info); + + switch (GET_WID_TYPE(wid)) { + case WID_CHAR: + do { + if (wl->cfg.b[i].id == WID_NIL) + break; + + if (wl->cfg.b[i].id == wid) { + wl->cfg.b[i].val = info[4]; + break; + } + i++; + } while (1); + len = 3; + break; + + case WID_SHORT: + do { + struct wilc_cfg_hword *hw = &wl->cfg.hw[i]; + + if (hw->id == WID_NIL) + break; + + if (hw->id == wid) { + hw->val = get_unaligned_le16(&info[4]); + break; + } + i++; + } while (1); + len = 4; + break; + + case WID_INT: + do { + struct wilc_cfg_word *w = &wl->cfg.w[i]; + + if (w->id == WID_NIL) + break; + + if (w->id == wid) { + w->val = get_unaligned_le32(&info[4]); + break; + } + i++; + } while (1); + len = 6; + break; + + case WID_STR: + do { + if (wl->cfg.s[i].id == WID_NIL) + break; + + if (wl->cfg.s[i].id == wid) { + memcpy(wl->cfg.s[i].str, &info[2], + (info[2] + 2)); + break; + } + i++; + } while (1); + 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; + + do { + if (wl->cfg.b[i].id == WID_NIL) + break; + + if (wl->cfg.b[i].id == wid) { + wl->cfg.b[i].val = info[3]; + break; + } + i++; + } while (1); + } +} + +/******************************************** + * + * Configuration Exported Functions + * + ********************************************/ + +int wilc_wlan_cfg_set_wid(u8 *frame, u32 offset, u16 id, u8 *buf, int size) +{ + u8 type = (id >> 12) & 0xf; + 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) +{ + u8 *buf; + + if ((offset + 2) >= WILC_MAX_CFG_FRAME_SIZE) + return 0; + + buf = &frame[offset]; + + buf[0] = (u8)id; + buf[1] = (u8)(id >> 8); + + return 2; +} + +int wilc_wlan_cfg_get_wid_value(struct wilc *wl, u16 wid, u8 *buffer, + u32 buffer_size) +{ + u32 type = (wid >> 12) & 0xf; + int i, ret = 0; + + i = 0; + if (type == CFG_BYTE_CMD) { + do { + if (wl->cfg.b[i].id == WID_NIL) + break; + + if (wl->cfg.b[i].id == wid) { + memcpy(buffer, &wl->cfg.b[i].val, 1); + ret = 1; + break; + } + i++; + } while (1); + } else if (type == CFG_HWORD_CMD) { + do { + if (wl->cfg.hw[i].id == WID_NIL) + break; + + if (wl->cfg.hw[i].id == wid) { + memcpy(buffer, &wl->cfg.hw[i].val, 2); + ret = 2; + break; + } + i++; + } while (1); + } else if (type == CFG_WORD_CMD) { + do { + if (wl->cfg.w[i].id == WID_NIL) + break; + + if (wl->cfg.w[i].id == wid) { + memcpy(buffer, &wl->cfg.w[i].val, 4); + ret = 4; + break; + } + i++; + } while (1); + } else if (type == CFG_STR_CMD) { + do { + u32 id = wl->cfg.s[i].id; + + if (id == WID_NIL) + break; + + if (id == wid) { + u16 size = get_unaligned_le16(wl->cfg.s[i].str); + + if (buffer_size >= size) { + memcpy(buffer, &wl->cfg.s[i].str[2], + size); + ret = size; + } + break; + } + i++; + } while (1); + } + 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; + + /* + * The valid types of response messages are + * 'R' (Response), + * 'I' (Information), and + * 'N' (Network Information) + */ + + switch (msg_type) { + case 'R': + wilc_wlan_parse_response_frame(wilc, frame, size); + rsp->type = WILC_CFG_RSP; + rsp->seq_no = msg_id; + break; + + case 'I': + 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 'N': + wilc_network_info_received(wilc, frame - 4, size + 4); + break; + + case 'S': + 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); +}