static wilc_spi_t g_spi;
 
-static int spi_read(u32, u8 *, u32);
-static int spi_write(u32, u8 *, u32);
+static int wilc_spi_read(u32, u8 *, u32);
+static int wilc_spi_write(u32, u8 *, u32);
 
 /********************************************
  *
  *
  ********************************************/
 
-static int spi_write_reg(u32 addr, u32 data)
+static int wilc_spi_write_reg(u32 addr, u32 data)
 {
        int result = N_OK;
        u8 cmd = CMD_SINGLE_WRITE;
        return result;
 }
 
-static int spi_write(u32 addr, u8 *buf, u32 size)
+static int wilc_spi_write(u32 addr, u8 *buf, u32 size)
 {
        int result;
        u8 cmd = CMD_DMA_EXT_WRITE;
        return 1;
 }
 
-static int spi_read_reg(u32 addr, u32 *data)
+static int wilc_spi_read_reg(u32 addr, u32 *data)
 {
        int result = N_OK;
        u8 cmd = CMD_SINGLE_READ;
        return 1;
 }
 
-static int spi_read(u32 addr, u8 *buf, u32 size)
+static int wilc_spi_read(u32 addr, u8 *buf, u32 size)
 {
        u8 cmd = CMD_DMA_EXT_READ;
        int result;
  *
  ********************************************/
 
-static int spi_clear_int(void)
+static int wilc_spi_clear_int(void)
 {
        u32 reg;
 
-       if (!spi_read_reg(WILC_HOST_RX_CTRL_0, ®)) {
+       if (!wilc_spi_read_reg(WILC_HOST_RX_CTRL_0, ®)) {
                PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_HOST_RX_CTRL_0);
                return 0;
        }
        reg &= ~0x1;
-       spi_write_reg(WILC_HOST_RX_CTRL_0, reg);
+       wilc_spi_write_reg(WILC_HOST_RX_CTRL_0, reg);
        return 1;
 }
 
-static int spi_deinit(void *pv)
+static int wilc_spi_deinit(void *pv)
 {
        /**
         *      TODO:
        return 1;
 }
 
-static int spi_sync(void)
+static int wilc_spi_sync(void)
 {
        u32 reg;
        int ret;
        /**
         *      interrupt pin mux select
         **/
-       ret = spi_read_reg(WILC_PIN_MUX_0, ®);
+       ret = wilc_spi_read_reg(WILC_PIN_MUX_0, ®);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
                return 0;
        }
        reg |= BIT(8);
-       ret = spi_write_reg(WILC_PIN_MUX_0, reg);
+       ret = wilc_spi_write_reg(WILC_PIN_MUX_0, reg);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
                return 0;
        /**
         *      interrupt enable
         **/
-       ret = spi_read_reg(WILC_INTR_ENABLE, ®);
+       ret = wilc_spi_read_reg(WILC_INTR_ENABLE, ®);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
                return 0;
        }
        reg |= BIT(16);
-       ret = spi_write_reg(WILC_INTR_ENABLE, reg);
+       ret = wilc_spi_write_reg(WILC_INTR_ENABLE, reg);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
                return 0;
        return 1;
 }
 
-static int spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
+static int wilc_spi_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
 {
        u32 reg;
        u32 chipid;
 
        if (isinit) {
 
-               if (!spi_read_reg(0x1000, &chipid)) {
+               if (!wilc_spi_read_reg(0x1000, &chipid)) {
                        PRINT_ER("[wilc spi]: Fail cmd read chip id...\n");
                        return 0;
                }
        /**
         *      make sure can read back chip id correctly
         **/
-       if (!spi_read_reg(0x1000, &chipid)) {
+       if (!wilc_spi_read_reg(0x1000, &chipid)) {
                PRINT_ER("[wilc spi]: Fail cmd read chip id...\n");
                return 0;
        }
        return 1;
 }
 
-static void spi_max_bus_speed(void)
+static void wilc_spi_max_bus_speed(void)
 {
        g_spi.spi_max_speed();
 }
 
-static void spi_default_bus_speed(void)
+static void wilc_spi_default_bus_speed(void)
 {
 }
 
-static int spi_read_size(u32 *size)
+static int wilc_spi_read_size(u32 *size)
 {
        int ret;
 
                u32 tmp;
                u32 byte_cnt;
 
-               ret = spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
+               ret = wilc_spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
                if (!ret) {
                        PRINT_ER("[wilc spi]: Failed read WILC_VMM_TO_HOST_SIZE ...\n");
                        goto _fail_;
 
 
 
-static int spi_read_int(u32 *int_status)
+static int wilc_spi_read_int(u32 *int_status)
 {
        int ret;
 
                u32 tmp;
                u32 byte_cnt;
 
-               ret = spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
+               ret = wilc_spi_read_reg(WILC_VMM_TO_HOST_SIZE, &byte_cnt);
                if (!ret) {
                        PRINT_ER("[wilc spi]: Failed read WILC_VMM_TO_HOST_SIZE ...\n");
                        goto _fail_;
 
                                happended = 0;
 
-                               spi_read_reg(0x1a90, &irq_flags);
+                               wilc_spi_read_reg(0x1a90, &irq_flags);
                                tmp |= ((irq_flags >> 27) << IRG_FLAGS_OFFSET);
 
                                if (g_spi.nint > 5) {
-                                       spi_read_reg(0x1a94, &irq_flags);
+                                       wilc_spi_read_reg(0x1a94, &irq_flags);
                                        tmp |= (((irq_flags >> 0) & 0x7) << (IRG_FLAGS_OFFSET + 5));
                                }
 
        return ret;
 }
 
-static int spi_clear_int_ext(u32 val)
+static int wilc_spi_clear_int_ext(u32 val)
 {
        int ret;
 
                        for (i = 0; i < g_spi.nint; i++) {
                                /* No matter what you write 1 or 0, it will clear interrupt. */
                                if (flags & 1)
-                                       ret = spi_write_reg(0x10c8 + i * 4, 1);
+                                       ret = wilc_spi_write_reg(0x10c8 + i * 4, 1);
                                if (!ret)
                                        break;
                                flags >>= 1;
                        }
                        if (!ret) {
-                               PRINT_ER("[wilc spi]: Failed spi_write_reg, set reg %x ...\n", 0x10c8 + i * 4);
+                               PRINT_ER("[wilc spi]: Failed wilc_spi_write_reg, set reg %x ...\n", 0x10c8 + i * 4);
                                goto _fail_;
                        }
                        for (i = g_spi.nint; i < MAX_NUM_INT; i++) {
                        if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
                                tbl_ctl |= BIT(1);
 
-                       ret = spi_write_reg(WILC_VMM_TBL_CTL, tbl_ctl);
+                       ret = wilc_spi_write_reg(WILC_VMM_TBL_CTL, tbl_ctl);
                        if (!ret) {
                                PRINT_ER("[wilc spi]: fail write reg vmm_tbl_ctl...\n");
                                goto _fail_;
                                /**
                                 *      enable vmm transfer.
                                 **/
-                               ret = spi_write_reg(WILC_VMM_CORE_CTL, 1);
+                               ret = wilc_spi_write_reg(WILC_VMM_CORE_CTL, 1);
                                if (!ret) {
                                        PRINT_ER("[wilc spi]: fail write reg vmm_core_ctl...\n");
                                        goto _fail_;
        return ret;
 }
 
-static int spi_sync_ext(int nint /*  how mant interrupts to enable. */)
+static int wilc_spi_sync_ext(int nint /*  how mant interrupts to enable. */)
 {
        u32 reg;
        int ret, i;
        /**
         *      interrupt pin mux select
         **/
-       ret = spi_read_reg(WILC_PIN_MUX_0, ®);
+       ret = wilc_spi_read_reg(WILC_PIN_MUX_0, ®);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_PIN_MUX_0);
                return 0;
        }
        reg |= BIT(8);
-       ret = spi_write_reg(WILC_PIN_MUX_0, reg);
+       ret = wilc_spi_write_reg(WILC_PIN_MUX_0, reg);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_PIN_MUX_0);
                return 0;
        /**
         *      interrupt enable
         **/
-       ret = spi_read_reg(WILC_INTR_ENABLE, ®);
+       ret = wilc_spi_read_reg(WILC_INTR_ENABLE, ®);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR_ENABLE);
                return 0;
        for (i = 0; (i < 5) && (nint > 0); i++, nint--) {
                reg |= (BIT((27 + i)));
        }
-       ret = spi_write_reg(WILC_INTR_ENABLE, reg);
+       ret = wilc_spi_write_reg(WILC_INTR_ENABLE, reg);
        if (!ret) {
                PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR_ENABLE);
                return 0;
        }
        if (nint) {
-               ret = spi_read_reg(WILC_INTR2_ENABLE, ®);
+               ret = wilc_spi_read_reg(WILC_INTR2_ENABLE, ®);
                if (!ret) {
                        PRINT_ER("[wilc spi]: Failed read reg (%08x)...\n", WILC_INTR2_ENABLE);
                        return 0;
                        reg |= BIT(i);
                }
 
-               ret = spi_read_reg(WILC_INTR2_ENABLE, ®);
+               ret = wilc_spi_read_reg(WILC_INTR2_ENABLE, ®);
                if (!ret) {
                        PRINT_ER("[wilc spi]: Failed write reg (%08x)...\n", WILC_INTR2_ENABLE);
                        return 0;
  *
  ********************************************/
 struct wilc_hif_func hif_spi = {
-       spi_init,
-       spi_deinit,
-       spi_read_reg,
-       spi_write_reg,
-       spi_read,
-       spi_write,
-       spi_sync,
-       spi_clear_int,
-       spi_read_int,
-       spi_clear_int_ext,
-       spi_read_size,
-       spi_write,
-       spi_read,
-       spi_sync_ext,
-       spi_max_bus_speed,
-       spi_default_bus_speed,
+       wilc_spi_init,
+       wilc_spi_deinit,
+       wilc_spi_read_reg,
+       wilc_spi_write_reg,
+       wilc_spi_read,
+       wilc_spi_write,
+       wilc_spi_sync,
+       wilc_spi_clear_int,
+       wilc_spi_read_int,
+       wilc_spi_clear_int_ext,
+       wilc_spi_read_size,
+       wilc_spi_write,
+       wilc_spi_read,
+       wilc_spi_sync_ext,
+       wilc_spi_max_bus_speed,
+       wilc_spi_default_bus_speed,
 };