[ALPS02268730] ANT:remove ANT+ kernel driver code

BUG=23460645

Change-Id: I303e1f49f6a5ae0bf8e9ae92de7403b9915298ca
CR-Id:ALPS02268730
Feature: MTK ANT+ Solution
Signed-off-by: Jun Wu <jun.wu@mediatek.com>

4 files changed, 1 insertions, 780 deletions

diff --git a/drivers/misc/mediatek/connectivity/common/combo/linux/Makefile b/drivers/misc/mediatek/connectivity/common/combo/linux/Makefile
index ab38676576c8..b07abbbe16a0 100644
--- a/drivers/misc/mediatek/connectivity/common/combo/linux/Makefile
+++ b/drivers/misc/mediatek/connectivity/common/combo/linux/Makefile
@@ -21,8 +21,4 @@ obj-$(CONFIG_MTK_COMBO_BT)	+= stp_chrdev_bt.o
 
 obj-$(CONFIG_MTK_COMBO_WIFI)	+= wmt_chrdev_wifi.o
 
-ifneq ($(filter "MT6630",$(CONFIG_MTK_COMBO_CHIP)),)
-obj-y 	+= stp_chrdev_ant.o
-endif
-
 endif
diff --git a/drivers/misc/mediatek/connectivity/common/combo/linux/stp_chrdev_ant.c b/drivers/misc/mediatek/connectivity/common/combo/linux/stp_chrdev_ant.c
deleted file mode 100644
index eb7afc00c09d..000000000000
--- a/drivers/misc/mediatek/connectivity/common/combo/linux/stp_chrdev_ant.c
+++ /dev/null
@@ -1,735 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/cdev.h>
-#include <linux/sched.h>
-#include <asm/current.h>
-#include <asm/uaccess.h>
-#include <linux/fcntl.h>
-#include <linux/poll.h>
-#include <linux/delay.h>
-#include <linux/time.h>
-#include "osal_typedef.h"
-#include "stp_exp.h"
-#include "wmt_exp.h"
-
-MODULE_LICENSE("Dual BSD/GPL");
-
-
-#define ANT_DRIVER_NAME "mtk_stp_ANT_chrdev"
-#define ANT_DEV_MAJOR 197	/* never used number */
-static PINT8 ANT_BUILT_IN_PATCH_FILE_NAME;
-static PINT8 ANT_BUILT_IN_PATCH_FILE_NAME_E1 = "/system/etc/firmware/ANT_RAM_CODE_E1.BIN";
-static PINT8 ANT_BUILT_IN_PATCH_FILE_NAME_E2 = "/system/etc/firmware/ANT_RAM_CODE_E2.BIN";
-
-#define PFX                         "[MTK-ANT] "
-#define ANT_LOG_DBG                  3
-#define ANT_LOG_INFO                 2
-#define ANT_LOG_WARN                 1
-#define ANT_LOG_ERR                  0
-
-#define COMBO_IOC_ANT_HWVER           6
-#define COMBO_IOCTL_ANT_IC_HW_VER	7
-#define COMBO_IOCTL_ANT_IC_FW_VER	8
-#define COMBO_IOCTAL_ANT_DOWNLOAD_FIRMWARE 9
-
-#define COMBO_IOC_MAGIC        0xb0
-#define COMBO_IOCTL_FW_ASSERT  _IOWR(COMBO_IOC_MAGIC, 0, void*)
-#define COMBO_IOCTL_BT_IC_HW_VER  _IOWR(COMBO_IOC_MAGIC, 1, int)
-#define COMBO_IOCTL_BT_IC_FW_VER  _IOWR(COMBO_IOC_MAGIC, 2, int)
-
-static UINT32 gDbgLevel = ANT_LOG_INFO;
-
-#define ANT_DBG_FUNC(fmt, arg...)	\
-do { if (gDbgLevel >= ANT_LOG_DBG)	\
-		pr_warn(PFX "%s: "  fmt, __func__ , ##arg);	\
-} while (0)
-#define ANT_INFO_FUNC(fmt, arg...)	\
-do { if (gDbgLevel >= ANT_LOG_INFO)	\
-		pr_warn(PFX "%s: "  fmt, __func__ , ##arg);	\
-} while (0)
-#define ANT_WARN_FUNC(fmt, arg...)	\
-do { if (gDbgLevel >= ANT_LOG_WARN)	\
-		pr_err(PFX "%s: "  fmt, __func__ , ##arg);	\
-} while (0)
-#define ANT_ERR_FUNC(fmt, arg...)	\
-do { if (gDbgLevel >= ANT_LOG_ERR)	\
-		pr_err(PFX "%s: "   fmt, __func__ , ##arg);	\
-} while (0)
-
-#define VERSION "1.0"
-/* #define BT_NVRAM_CUSTOM_NAME "/data/BT_Addr" */
-
-static INT32 ANT_devs = 1;	/* device count */
-static INT32 ANT_major = ANT_DEV_MAJOR;	/* dynamic allocation */
-module_param(ANT_major, uint, 0);
-static struct cdev ANT_cdev;
-
-static UINT8 i_buf[MTKSTP_BUFFER_SIZE];	/* input buffer of read() */
-static UINT8 o_buf[MTKSTP_BUFFER_SIZE];	/* output buffer of write() */
-static struct semaphore wr_mtx, rd_mtx;
-static wait_queue_head_t inq;	/* read queues */
-static DECLARE_WAIT_QUEUE_HEAD(ANT_wq);
-static INT32 flag;
-static volatile INT32 retflag;
-/*
-static unsigned char g_bt_bd_addr[10] = {0x01, 0x1a, 0xfc, 0x06, 0x00, 0x55, 0x66, 0x77, 0x88, 0x00};
-static unsigned char g_nvram_btdata[8];
-*/
-static INT32 read_ram_code_length = 300;
-static int ANT_Power(unsigned long ver);
-/*
-static INT32 nvram_read(PINT8 filename, PINT8 buf, ssize_t len, INT32 offset)
-{
-    struct file *fd;
-    //ssize_t ret;
-    INT32 retLen = -1;
-
-    mm_segment_t old_fs = get_fs();
-    set_fs(KERNEL_DS);
-
-    fd = filp_open(filename, O_WRONLY | O_CREAT, 0644);
-
-    if (IS_ERR(fd)) {
-	BT_ERR_FUNC("failed to open!!\n");
-	return -1;
-    }
-    do {
-	if ((fd->f_op == NULL) || (fd->f_op->read == NULL)) {
-	    BT_ERR_FUNC("file can not be read!!\n");
-	    break;
-	}
-
-	if (fd->f_pos != offset) {
-	    if (fd->f_op->llseek) {
-		if (fd->f_op->llseek(fd, offset, 0) != offset) {
-		    BT_ERR_FUNC("[nvram_read] : failed to seek!!\n");
-		    break;
-		}
-	    } else {
-		fd->f_pos = offset;
-	    }
-	}
-
-	retLen = fd->f_op->read(fd,
-				buf,
-				len,
-				&fd->f_pos);
-
-    } while (false);
-
-    filp_close(fd, NULL);
-
-    set_fs(old_fs);
-
-    return retLen;
-}
-
-
-INT32 platform_load_nvram_data(PINT8 filename, PINT8 buf, INT32 len)
-{
-    //INT32 ret;
-    BT_INFO_FUNC("platform_load_nvram_data ++ BDADDR\n");
-
-    return nvram_read(filename, buf, len, 0);
-}
-*/
-
-static VOID ant_cdev_rst_cb(ENUM_WMTDRV_TYPE_T src,
-			    ENUM_WMTDRV_TYPE_T dst,
-			    ENUM_WMTMSG_TYPE_T type, PVOID buf, UINT32 sz)
-{
-
-	/*
-	   To handle reset procedure please
-	 */
-	ENUM_WMTRSTMSG_TYPE_T rst_msg;
-
-	/*ANT_DBG_FUNC("sizeof(ENUM_WMTRSTMSG_TYPE_T) = %zd\n", sizeof(ENUM_WMTRSTMSG_TYPE_T));*/
-	if (sz <= sizeof(ENUM_WMTRSTMSG_TYPE_T)) {
-		memcpy((PINT8)&rst_msg, (PINT8)buf, sz);
-		ANT_DBG_FUNC("src = %d, dst = %d, type = %d, buf = 0x%x sz = %d, max = %d\n", src,
-			      dst, type, rst_msg, sz, WMTRSTMSG_RESET_MAX);
-		if ((src == WMTDRV_TYPE_WMT) && (dst == WMTDRV_TYPE_ANT)
-		    && (type == WMTMSG_TYPE_RESET)) {
-			if (rst_msg == WMTRSTMSG_RESET_START) {
-				ANT_INFO_FUNC("ANT restart start!\n");
-				retflag = 1;
-				wake_up_interruptible(&inq);
-				/*reset_start message handling */
-
-			} else if (rst_msg == WMTRSTMSG_RESET_END) {
-				ANT_INFO_FUNC("ANT restart end!\n");
-				retflag = 2;
-				wake_up_interruptible(&inq);
-				/*reset_end message handling */
-			}
-		}
-	} else {
-		/*message format invalid */
-		ANT_INFO_FUNC("message format invalid!\n");
-	}
-}
-
-VOID ANT_event_cb(VOID)
-{
-	ANT_DBG_FUNC("ANT_event_cb()\n");
-
-	flag = 1;
-	wake_up(&ANT_wq);
-	/* finally, awake any reader */
-	wake_up_interruptible(&inq);	/* blocked in read() and select() */
-}
-
-unsigned int ANT_poll(struct file *filp, poll_table *wait)
-{
-	UINT32 mask = 0;
-
-/* down(&wr_mtx); */
-	/*
-	 * The buffer is circular; it is considered full
-	 * if "wp" is right behind "rp". "left" is 0 if the
-	 * buffer is empty, and it is "1" if it is completely full.
-	 */
-	if (mtk_wcn_stp_is_rxqueue_empty(ANT_TASK_INDX)) {
-		poll_wait(filp, &inq, wait);
-
-		/* empty let select sleep */
-		if ((!mtk_wcn_stp_is_rxqueue_empty(ANT_TASK_INDX)) || retflag)
-			mask |= POLLIN | POLLRDNORM;	/* readable */
-	} else {
-		mask |= POLLIN | POLLRDNORM;	/* readable */
-	}
-
-	/* do we need condition? */
-	mask |= POLLOUT | POLLWRNORM;	/* writable */
-/* up(&wr_mtx); */
-	return mask;
-}
-
-
-ssize_t ANT_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos)
-{
-	INT32 retval = 0;
-	INT32 written = 0;
-
-	down(&wr_mtx);
-	/*ANT_DBG_FUNC("%s: count %d pos %lld\n", __func__, count, *f_pos);*/
-	if (retflag) {
-		if (retflag == 1) {	/* reset start */
-			retval = -88;
-			ANT_INFO_FUNC("MT662x reset Write: start\n");
-		} else if (retflag == 2) {	/* reset end */
-			retval = -99;
-			ANT_INFO_FUNC("MT662x reset Write: end\n");
-		}
-		goto OUT;
-	}
-
-	if (count > 0) {
-		INT32 copy_size = (count < MTKSTP_BUFFER_SIZE) ? count : MTKSTP_BUFFER_SIZE;
-
-		if (copy_from_user(&o_buf[0], &buf[0], copy_size)) {
-			retval = -EFAULT;
-			goto OUT;
-		}
-		/* pr_warn("%02x ", val); */
-
-		written = mtk_wcn_stp_send_data(&o_buf[0], copy_size, ANT_TASK_INDX);
-		if (0 == written) {
-			retval = -ENOSPC;
-		/*no windowspace in STP is available, native process should not call BT_write with no delay at all */
-		/*ANT_ERR_FUNC
-			    ("target packet length:%d, write success length:%d, retval = %d.\n",
-			     count, written, retval);*/
-		} else {
-			retval = written;
-		}
-
-	} else {
-		retval = -EFAULT;
-	/*ANT_ERR_FUNC("target packet length:%d is not allowed, retval = %d.\n", count,
-			     retval);*/
-	}
-
- OUT:
-	up(&wr_mtx);
-	return retval;
-}
-
-ssize_t ANT_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
-{
-	INT32 retval = 0;
-	INT32 i = 0;
-
-	down(&rd_mtx);
-
-	/*ANT_DBG_FUNC("ANT_read(): count %d pos %lld\n", count, *f_pos);*/
-	if (retflag) {
-		if (retflag == 1) {	/* reset start */
-			retval = -88;
-			ANT_INFO_FUNC("MT662x reset Read: start\n");
-		} else if (retflag == 2) {	/* reset end */
-			retval = -99;
-			ANT_INFO_FUNC("MT662x reset Read: end\n");
-		}
-		goto OUT;
-	}
-
-	if (count > MTKSTP_BUFFER_SIZE)
-		count = MTKSTP_BUFFER_SIZE;
-	retval = mtk_wcn_stp_receive_data(i_buf, count, ANT_TASK_INDX);
-
-	while (retval == 0) {	/* got nothing, wait for STP's signal */
-		/*If nonblocking mode, return directly O_NONBLOCK is specified during open() */
-		if (filp->f_flags & O_NONBLOCK) {
-			ANT_DBG_FUNC("Non-blocking ANT_read()\n");
-			retval = -EAGAIN;
-			goto OUT;
-		}
-
-		ANT_DBG_FUNC("ANT_read(): wait_event 1\n");
-		wait_event(ANT_wq, flag != 0);
-		ANT_DBG_FUNC("ANT_read(): wait_event 2\n");
-		flag = 0;
-
-		retval = mtk_wcn_stp_receive_data(i_buf, count, ANT_TASK_INDX);
-		ANT_DBG_FUNC("ANT_read(): mtk_wcn_stp_receive_data() = %d\n", retval);
-	}
-
-	ANT_DBG_FUNC("ANT_read() read buffer is:");
-
-	while (i < retval) {
-		ANT_DBG_FUNC("[%d]:0x%x\n", i, i_buf[i]);
-		i++;
-	}
-
-	ANT_DBG_FUNC("ANT_read(): mtk_wcn_stp_receive_data() = %d\n", retval);
-	/* we got something from STP driver */
-	if (copy_to_user(buf, i_buf, retval)) {
-		retval = -EFAULT;
-		goto OUT;
-	}
-
- OUT:
-	up(&rd_mtx);
-	ANT_DBG_FUNC("ANT_read(): retval = %d\n", retval);
-	return retval;
-}
-
-/* int BT_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) */
-long ANT_unlocked_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	INT32 retval = 0;
-	UINT32 hw_version = 0;
-	UINT32 fw_version = 0;
-	MTK_WCN_BOOL bRet = MTK_WCN_BOOL_TRUE;
-	ENUM_WMTHWVER_TYPE_T hw_ver_sym = WMTHWVER_INVALID;
-
-	ANT_DBG_FUNC("ANT_ioctl(): cmd (%d)\n", cmd);
-	switch (cmd) {
-#if 0
-	case 0:		/* enable/disable STP */
-		/* George: STP is controlled by WMT only */
-		/* mtk_wcn_stp_enable(arg); */
-		break;
-#endif
-	case 1:		/* send raw data */
-		ANT_DBG_FUNC("ANT_ioctl(): disable raw data from ANT dev\n");
-		retval = -EINVAL;
-		break;
-	case COMBO_IOC_ANT_HWVER:
-		/*get combo hw version */
-		hw_ver_sym = mtk_wcn_wmt_hwver_get();
-
-		/*ANT_INFO_FUNC("ANT_ioctl(): get hw version = %d, sizeof(hw_ver_sym) = %d\n",
-			      hw_ver_sym, sizeof(hw_ver_sym)); */
-		if (copy_to_user((int __user *)arg, &hw_ver_sym, sizeof(hw_ver_sym)))
-			retval = -EFAULT;
-		break;
-
-	case COMBO_IOCTL_FW_ASSERT:
-		/* BT trigger fw assert for debug */
-		ANT_INFO_FUNC("ANT Set fw assert......\n");
-		/* bRet = mtk_wcn_wmt_assert(WMTDRV_TYPE_ANT, arg); temp mark */
-		if (bRet == MTK_WCN_BOOL_TRUE) {
-			ANT_INFO_FUNC("ANT Set fw assert OK\n");
-			retval = 0;
-		} else {
-			ANT_INFO_FUNC("ANT Set fw assert Failed\n");
-			retval = (-1000);
-		}
-		break;
-	case COMBO_IOCTL_ANT_IC_HW_VER:
-		ANT_DBG_FUNC("get hw version setup 1\n");
-		hw_version = mtk_wcn_wmt_ic_info_get(WMTCHIN_HWVER);
-		if (copy_to_user((int __user *)arg, &hw_version, sizeof(hw_version)))
-			retval = -EFAULT;
-		break;
-	case COMBO_IOCTL_ANT_IC_FW_VER:
-		ANT_DBG_FUNC("get fw version setup 2\n");
-		fw_version = mtk_wcn_wmt_ic_info_get(WMTCHIN_FWVER);
-		if (copy_to_user((int __user *)arg, &fw_version, sizeof(fw_version)))
-			retval = -EFAULT;
-		break;
-	case COMBO_IOCTAL_ANT_DOWNLOAD_FIRMWARE:
-		return ANT_Power(arg);
-	default:
-		retval = -EFAULT;
-		ANT_DBG_FUNC("ANT_ioctl(): unknown cmd (%d)\n", cmd);
-		break;
-	}
-
-	return retval;
-}
-
-long ANT_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
-{
-	long ret;
-
-	pr_warn("%s: cmd (%d)\n", __func__, cmd);
-	ret = ANT_unlocked_ioctl(filp, cmd, arg);
-	pr_warn("%s: cmd (%d)\n", __func__, cmd);
-	return ret;
-}
-
-static INT32 ANT_DownLoad_RAM_Code(unsigned long ver)
-{
-	struct file *pPatchExtFile = NULL;
-	UINT8 pbPatchExtBin[read_ram_code_length];
-	INT32 lFileLen = 0;
-	INT32 download_status = 0;
-	UINT32 transport_length = 0;
-	INT32 download_number = 0;
-	INT32 i = 0;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-
-	switch (ver) {
-	case 1:
-		ANT_BUILT_IN_PATCH_FILE_NAME = ANT_BUILT_IN_PATCH_FILE_NAME_E1;
-		ANT_INFO_FUNC("download E1 patch\n");
-		break;
-	case 2:
-		ANT_BUILT_IN_PATCH_FILE_NAME = ANT_BUILT_IN_PATCH_FILE_NAME_E2;
-		ANT_INFO_FUNC("download E2 patch\n");
-		break;
-	default:
-		ANT_INFO_FUNC("Can not support RAM code version:%ld!\n", ver);
-		return 0;
-	}
-	pPatchExtFile = filp_open(ANT_BUILT_IN_PATCH_FILE_NAME, O_RDONLY, 0644);
-
-
-	if ((IS_ERR(pPatchExtFile))) {
-		ANT_ERR_FUNC("failed to open  %s\r\n", ANT_BUILT_IN_PATCH_FILE_NAME);
-		filp_close(pPatchExtFile, NULL);
-		set_fs(old_fs);
-		return 0;
-	}
-
-	ANT_INFO_FUNC("Open %s\r\n", ANT_BUILT_IN_PATCH_FILE_NAME);
-	/* Set the file at end */
-	lFileLen = pPatchExtFile->f_op->llseek(pPatchExtFile, 0, SEEK_END);
-
-	/*
-	   if(pPatchExtFile->f_op->llseek(pPatchExtFile, 0, SEEK_END) != 0){
-	   ANT_ERR_FUNC("llseek ant rom code file fails errno: %d\n");
-	   return 0;
-	   }
-	   lFileLen = ftell(pPatchExtFile);
-	 */
-	if (lFileLen < 0) {
-		ANT_ERR_FUNC("Patch ext error len %d\n", lFileLen);
-		filp_close(pPatchExtFile, NULL);
-		return 0;
-	}
-	ANT_DBG_FUNC("Patch ext file size %d\n", lFileLen);
-	/* rewind(pPatchExtFile); */
-	pPatchExtFile->f_op->llseek(pPatchExtFile, 0, SEEK_SET);
-	/* loop number */
-	download_number = lFileLen / read_ram_code_length;
-	ANT_DBG_FUNC("The send file loop number is %d\n", download_number);
-
-	/* read down load ram code and down load it to controller side */
-	i = 0;
-
-	/* for(int i = 0 ; i <= download_number ; i ++ ){ */
-	while ((i <= download_number)) {
-		if (i < download_number) {
-			ANT_DBG_FUNC("The ram code file location is %llx\n",
-				      pPatchExtFile->f_pos);
-			if ((pPatchExtFile->f_op->
-			     read(pPatchExtFile, pbPatchExtBin,
-				  read_ram_code_length,
-				  &pPatchExtFile->f_pos)) < 0) {
-					ANT_ERR_FUNC
-					    ("fread ant rom code file fails errno\n");
-					filp_close(pPatchExtFile, NULL);
-					return 0;
-				}
-				ANT_DBG_FUNC("The %d second read file\n", i);
-		} else {
-			ANT_DBG_FUNC("The ram code file location is %llx\n",
-				      pPatchExtFile->f_pos);
-			if ((pPatchExtFile->f_op->
-			     read(pPatchExtFile, pbPatchExtBin,
-				  (lFileLen - (i * read_ram_code_length)),
-				  &pPatchExtFile->f_pos)) < 0) {
-				ANT_ERR_FUNC("fread ant rom code file fails errno\n");
-				filp_close(pPatchExtFile, NULL);
-				return 0;
-			}
-			ANT_DBG_FUNC("The last read file\n");
-		}
-		/* set lengnth and status */
-		if (0 == i) {
-			download_status = WMT_ANT_RAM_START_PKT;
-				transport_length = read_ram_code_length;
-		} else if ((i != download_number) && (0 != i)) {
-			download_status = WMT_ANT_RAM_CONTINUE_PKT;
-			transport_length = read_ram_code_length;
-		} else {
-			download_status = WMT_ANT_RAM_END_PKT;
-			transport_length = lFileLen - (i * read_ram_code_length);
-		}
-		if (WMT_ANT_RAM_DOWN_FAIL ==
-		    mtk_wcn_wmt_ant_ram_ctrl(WMT_ANT_RAM_DOWNLOAD, (PUINT8)(&pbPatchExtBin),
-					     transport_length, download_status)) {
-			ANT_ERR_FUNC("Download ant rom code file fails\n");
-			filp_close(pPatchExtFile, NULL);
-			return 0;
-		}
-			i++;
-	}
-		/*
-		   pbPatchExtBin = (unsigned char*)malloc(lFileLen);
-		   if(pbPatchExtBin){
-		   size_t szReadLen = fread(pbPatchExtBin, 1, lFileLen, pPatchExtFile);
-		   dwPatchExtLen = szReadLen;
-		   }
-		 */
-	filp_close(pPatchExtFile, NULL);
-	set_fs(old_fs);
-	return 1;
-}
-
-static int ANT_Power(unsigned long ver)
-{
-	INT32 status = mtk_wcn_wmt_ant_ram_ctrl(WMT_ANT_RAM_GET_STATUS, 0, 0, 0);
-
-	if (WMT_ANT_RAM_NOT_EXIST == status) {
-		if (1 == ANT_DownLoad_RAM_Code(ver)) {
-			ANT_INFO_FUNC("ANT Download RAM code is Successful\n");
-			return 0;
-		}
-		ANT_INFO_FUNC("ANT Download RAM code is Fail\n");
-		return -1;
-	}
-
-	if (WMT_ANT_RAM_EXIST == status)
-		ANT_INFO_FUNC("ANT Fimeware side Ramcode is ready");
-	return 0;
-}
-
-static int ANT_open(struct inode *inode, struct file *file)
-{
-	ANT_INFO_FUNC("%s: major %d minor %d (pid %d)\n", __func__,
-		      imajor(inode), iminor(inode), current->pid);
-	if (current->pid == 1)
-		return 0;
-#if 1				/* GeorgeKuo: turn on function before check stp ready */
-	/* turn on BT */
-	if (MTK_WCN_BOOL_FALSE == mtk_wcn_wmt_func_on(WMTDRV_TYPE_ANT)) {
-		ANT_WARN_FUNC("WMT turn on ANT fail!\n");
-		return -ENODEV;
-	}
-	retflag = 0;
-	mtk_wcn_wmt_msgcb_reg(WMTDRV_TYPE_ANT, ant_cdev_rst_cb);
-	ANT_INFO_FUNC("WMT register ANT rst cb!\n");
-#endif
-
-	if (mtk_wcn_stp_is_ready()) {
-#if 0				/* GeorgeKuo: turn on function before check stp ready */
-		/* turn on BT */
-		if (MTK_WCN_BOOL_FALSE == mtk_wcn_wmt_func_on(WMTDRV_TYPE_ANT)) {
-			ANT_WARN_FUNC("WMT turn on ANT fail!\n");
-			return -ENODEV;
-		}
-#endif
-		mtk_wcn_stp_set_bluez(0);
-
-		ANT_DBG_FUNC("Now it's in MTK ANT Mode\n");
-		ANT_DBG_FUNC("WMT turn on ANT OK!\n");
-		ANT_DBG_FUNC("STP is ready!\n");
-
-#if 0
-		platform_load_nvram_data(BT_NVRAM_CUSTOM_NAME,
-					 (char *)&g_nvram_btdata, sizeof(g_nvram_btdata));
-
-		ANT_INFO_FUNC
-		    ("Read NVRAM : BD address %02x%02x%02x%02x%02x%02x Cap 0x%02x Codec 0x%02x\n",
-		     g_nvram_btdata[0], g_nvram_btdata[1], g_nvram_btdata[2], g_nvram_btdata[3],
-		     g_nvram_btdata[4], g_nvram_btdata[5], g_nvram_btdata[6], g_nvram_btdata[7]);
-#endif
-
-		mtk_wcn_stp_register_event_cb(ANT_TASK_INDX, ANT_event_cb);
-		ANT_DBG_FUNC("mtk_wcn_stp_register_event_cb finish\n");
-
-
-/* #if 0 */
-		/* Query the RAM Code Status and download it */
-/* ANT_Power(); */
-
-/* #endif */
-	} else {
-		ANT_ERR_FUNC("STP is not ready\n");
-
-		/*return error code */
-		return -ENODEV;
-	}
-
-/* init_MUTEX(&wr_mtx); */
-	sema_init(&wr_mtx, 1);
-/* init_MUTEX(&rd_mtx); */
-	sema_init(&rd_mtx, 1);
-	ANT_INFO_FUNC("finish\n");
-
-	return 0;
-}
-
-static int ANT_close(struct inode *inode, struct file *file)
-{
-	ANT_INFO_FUNC("%s: major %d minor %d (pid %d)\n", __func__,
-		      imajor(inode), iminor(inode), current->pid);
-	if (current->pid == 1)
-		return 0;
-	retflag = 0;
-	mtk_wcn_wmt_msgcb_unreg(WMTDRV_TYPE_ANT);
-	mtk_wcn_stp_register_event_cb(ANT_TASK_INDX, NULL);
-
-	if (MTK_WCN_BOOL_FALSE == mtk_wcn_wmt_func_off(WMTDRV_TYPE_ANT)) {
-		ANT_INFO_FUNC("WMT turn off ANT fail!\n");
-		return -EIO;	/* mostly, native programmer will not check this return value. */
-	}
-	ANT_INFO_FUNC("WMT turn off ANT OK!\n");
-
-	return 0;
-}
-
-const struct file_operations ANT_fops = {
-	.open = ANT_open,
-	.release = ANT_close,
-	.read = ANT_read,
-	.write = ANT_write,
-	.unlocked_ioctl = ANT_unlocked_ioctl,
-	.compat_ioctl = ANT_compat_ioctl,
-	.poll = ANT_poll
-};
-
-#if REMOVE_MK_NODE
-struct class *stpant_class = NULL;
-#endif
-
-static int ANT_init(void)
-{
-	dev_t dev = MKDEV(ANT_major, 0);
-	INT32 alloc_ret = 0;
-	INT32 cdev_err = 0;
-#if REMOVE_MK_NODE
-	struct device *stpant_dev = NULL;
-#endif
-
-	/*static allocate chrdev */
-	alloc_ret = register_chrdev_region(dev, 1, ANT_DRIVER_NAME);
-	if (alloc_ret) {
-		ANT_ERR_FUNC("fail to register chrdev\n");
-		return alloc_ret;
-	}
-
-	cdev_init(&ANT_cdev, &ANT_fops);
-	ANT_cdev.owner = THIS_MODULE;
-
-	cdev_err = cdev_add(&ANT_cdev, dev, ANT_devs);
-	if (cdev_err)
-		goto error;
-#if REMOVE_MK_NODE		/* mknod replace */
-
-	stpant_class = class_create(THIS_MODULE, "stpant");
-	if (IS_ERR(stpant_class))
-		goto error;
-	stpant_dev = device_create(stpant_class, NULL, dev, NULL, "stpant");
-	if (IS_ERR(stpant_dev))
-		goto error;
-#endif
-
-	ANT_INFO_FUNC("%s driver(major %d) installed.\n", ANT_DRIVER_NAME, ANT_major);
-	retflag = 0;
-	mtk_wcn_stp_register_event_cb(ANT_TASK_INDX, NULL);
-
-	/* init wait queue */
-	init_waitqueue_head(&(inq));
-
-	return 0;
-
- error:
-#if REMOVE_MK_NODE
-	if (!IS_ERR(stpant_dev))
-		device_destroy(stpant_class, dev);
-	if (!IS_ERR(stpant_class)) {
-		class_destroy(stpant_class);
-		stpant_class = NULL;
-	}
-#endif
-
-	if (cdev_err == 0)
-		cdev_del(&ANT_cdev);
-
-	if (alloc_ret == 0)
-		unregister_chrdev_region(dev, ANT_devs);
-
-	return -1;
-}
-
-static void ANT_exit(void)
-{
-	dev_t dev = MKDEV(ANT_major, 0);
-
-	retflag = 0;
-
-	mtk_wcn_stp_register_event_cb(ANT_TASK_INDX, NULL);	/* unregister event callback function */
-#if REMOVE_MK_NODE
-	device_destroy(stpant_class, dev);
-	class_destroy(stpant_class);
-	stpant_class = NULL;
-#endif
-
-	cdev_del(&ANT_cdev);
-	unregister_chrdev_region(dev, ANT_devs);
-
-	ANT_INFO_FUNC("%s driver removed.\n", ANT_DRIVER_NAME);
-}
-
-#ifdef MTK_WCN_REMOVE_KERNEL_MODULE
-
-int mtk_wcn_stpant_drv_init(VOID)
-{
-	return ANT_init();
-}
-EXPORT_SYMBOL(mtk_wcn_stpant_drv_init);
-
-void mtk_wcn_stpant_drv_exit(VOID)
-{
-	return ANT_exit();
-}
-EXPORT_SYMBOL(mtk_wcn_stpant_drv_exit);
-
-#else
-
-module_init(ANT_init);
-module_exit(ANT_exit);
-
-#endif
diff --git a/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/Makefile b/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/Makefile
index 445654b13a18..25d00321bc73 100644
--- a/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/Makefile
+++ b/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/Makefile
@@ -17,8 +17,5 @@ endif
 	obj-y += gps_drv_init.o
 	obj-y += fm_drv_init.o
 	obj-y += wlan_drv_init.o
-ifneq ($(filter "MT6630",$(CONFIG_MTK_COMBO_CHIP)),)
-	obj-y += ant_drv_init.o
-endif
 
-endif
\ No newline at end of file
+endif
diff --git a/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/ant_drv_init.c b/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/ant_drv_init.c
deleted file mode 100644
index 54a9bf2babef..000000000000
--- a/drivers/misc/mediatek/connectivity/common/common_detect/drv_init/ant_drv_init.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
-* Copyright (C) 2011-2014 MediaTek Inc.
-*
-* This program is free software: you can redistribute it and/or modify it under the terms of the
-* GNU General Public License version 2 as published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
-* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-* See the GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License along with this program.
-* If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#ifdef DFT_TAG
-#undef DFT_TAG
-#endif
-#define DFT_TAG         "[ANT-MOD-INIT]"
-
-#include "wmt_detect.h"
-#include "ant_drv_init.h"
-
-int do_ant_drv_init(int chip_id)
-{
-	int i_ret = -1;
-
-	WMT_DETECT_INFO_FUNC("start to do ANT driver init\n");
-	switch (chip_id) {
-	case 0x6630:
-		i_ret = mtk_wcn_stpant_drv_init();
-		WMT_DETECT_INFO_FUNC("finish ANT driver init, i_ret:%d\n", i_ret);
-		break;
-	default:
-		WMT_DETECT_ERR_FUNC("chipid is not 6630,ANT is not supported!\n");
-	}
-	return i_ret;
-}