2 * Copyright (C) 2012 ROCKCHIP, Inc.
4 * This software is licensed under the terms of the GNU General Public
5 * License version 2, as published by the Free Software Foundation, and
6 * may be copied, distributed, and modified under those terms.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 /* Rock-chips rfkill driver for wifi
17 #include <linux/kernel.h>
18 #include <linux/platform_device.h>
19 #include <linux/module.h>
20 #include <linux/rfkill.h>
21 #include <linux/init.h>
22 #include <linux/slab.h>
24 #include <linux/regulator/consumer.h>
25 #include <linux/delay.h>
26 #include <linux/rfkill-wlan.h>
27 #include <linux/rfkill-bt.h>
28 #include <linux/wakelock.h>
29 #include <linux/interrupt.h>
31 #include <linux/suspend.h>
32 #include <linux/proc_fs.h>
33 #include <linux/uaccess.h>
34 #include <linux/gpio.h>
35 #include <linux/rockchip/iomap.h>
36 #include <dt-bindings/gpio/gpio.h>
39 #include <linux/of_device.h>
40 #include <linux/of_gpio.h>
44 #define DBG(x...) printk(KERN_INFO "[WLAN_RFKILL]: "x)
49 #define LOG(x...) printk(KERN_INFO "[WLAN_RFKILL]: "x)
51 struct rfkill_wlan_data {
52 struct rksdmmc_gpio_wifi_moudle *pdata;
53 struct wake_lock wlan_irq_wl;
56 static struct rfkill_wlan_data *g_rfkill = NULL;
58 static const char wlan_name[] =
59 #if defined (CONFIG_BCM4330)
60 #if defined (CONFIG_BT_MODULE_NH660)
65 #elif defined (CONFIG_RK903)
66 #if defined(CONFIG_RKWIFI_26M)
71 #elif defined(CONFIG_BCM4329)
73 #elif defined(CONFIG_MV8787)
75 #elif defined(CONFIG_AP6210)
76 #if defined(CONFIG_RKWIFI_26M)
81 #elif defined(CONFIG_AP6330)
83 #elif defined(CONFIG_AP6476)
85 #elif defined(CONFIG_AP6493)
92 /***********************************************************
94 * Broadcom Wifi Static Memory
96 **********************************************************/
97 #define BCM_STATIC_MEMORY_SUPPORT 0
98 //===========================
99 #if BCM_STATIC_MEMORY_SUPPORT
100 #define PREALLOC_WLAN_SEC_NUM 4
101 #define PREALLOC_WLAN_BUF_NUM 160
102 #define PREALLOC_WLAN_SECTION_HEADER 24
103 #define WLAN_SKB_BUF_NUM 16
105 #define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_BUF_NUM * 128)
106 #define WLAN_SECTION_SIZE_1 (PREALLOC_WLAN_BUF_NUM * 128)
107 #define WLAN_SECTION_SIZE_2 (PREALLOC_WLAN_BUF_NUM * 512)
108 #define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_BUF_NUM * 1024)
109 #define WLAN_SECTION_SIZE_5 (PREALLOC_WLAN_BUF_NUM * 512)
111 static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];
113 struct wifi_mem_prealloc {
118 static struct wifi_mem_prealloc wifi_mem_array[5] = {
119 {NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER)},
120 {NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER)},
121 {NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER)},
122 {NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER)},
123 {NULL, (WLAN_SECTION_SIZE_5 + PREALLOC_WLAN_SECTION_HEADER)}
126 static int __init rockchip_init_wifi_mem(void)
131 for (i = 0 ; i < WLAN_SKB_BUF_NUM ; i++) {
132 wlan_static_skb[i] = dev_alloc_skb(
133 ((i < (WLAN_SKB_BUF_NUM / 2)) ? 4096 : 8192));
135 if (!wlan_static_skb[i])
139 for (i = 0 ; i < 5; i++) {
140 wifi_mem_array[i].mem_ptr =
141 kmalloc(wifi_mem_array[i].size, GFP_KERNEL);
143 if (!wifi_mem_array[i].mem_ptr)
149 pr_err("Failed to mem_alloc for WLAN\n");
150 for (j = 0 ; j < i ; j++)
151 kfree(wifi_mem_array[j].mem_ptr);
152 i = WLAN_SKB_BUF_NUM;
154 pr_err("Failed to skb_alloc for WLAN\n");
155 for (j = 0 ; j < i ; j++)
156 dev_kfree_skb(wlan_static_skb[j]);
161 void *rockchip_mem_prealloc(int section, unsigned long size)
163 if (section == PREALLOC_WLAN_SEC_NUM)
164 return wlan_static_skb;
166 if ((section < 0) || (section > 5))
170 return wifi_mem_array[4].mem_ptr;
172 if (wifi_mem_array[section].size < size)
175 return wifi_mem_array[section].mem_ptr;
178 void *rockchip_mem_prealloc(int section, unsigned long size) { return NULL;}
180 EXPORT_SYMBOL(rockchip_mem_prealloc);
182 /**************************************************************************
184 * get wifi power state Func
186 *************************************************************************/
187 static int wifi_power_state = 0;
188 int rfkill_get_wifi_power_state(int *power, int *vref_ctrl_enable)
190 struct rfkill_wlan_data *mrfkill = g_rfkill;
192 if (mrfkill == NULL) {
193 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
197 if (mrfkill->pdata->vref_ctrl_enble)
198 *vref_ctrl_enable = 1;
199 *power = wifi_power_state;
204 /**************************************************************************
206 * wifi reference voltage control Func
208 *************************************************************************/
209 int rockchip_wifi_ref_voltage(int on)
211 struct rfkill_wlan_data *mrfkill = g_rfkill;
212 struct rksdmmc_gpio *vddio;
213 struct regulator *ldo = NULL;
217 LOG("%s: %d\n", __func__, on);
219 if (mrfkill == NULL) {
220 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
224 if (!mrfkill->pdata->vref_ctrl_enble) {
225 LOG("%s: wifi io reference voltage control is disabled.\n", __func__);
229 if (!rfkill_get_bt_power_state(&power, &toggle)) {
231 LOG("%s: wifi shouldn't control io reference voltage, BT is running!\n", __func__);
236 if (mrfkill->pdata->ioregulator.power_ctrl_by_pmu) {
239 int level = mrfkill->pdata->ioregulator.enable;
240 int voltage = 1000 * mrfkill->pdata->sdio_vol;
242 ldostr = mrfkill->pdata->ioregulator.pmu_regulator;
243 if (ldostr == NULL) {
244 LOG("%s: wifi io reference voltage set to be controled by pmic, but which one?\n", __func__);
247 ldo = regulator_get(NULL, ldostr);
248 if (ldo == NULL || IS_ERR(ldo)) {
249 LOG("\n\n\n%s get ldo error,please mod this\n\n\n", __func__);
253 regulator_set_voltage(ldo, voltage, voltage);
254 LOG("%s: %s enabled, level = %d\n", __func__, ldostr, voltage);
255 ret = regulator_enable(ldo);
256 LOG("wifi turn on io reference voltage.\n");
258 LOG("%s: %s disabled\n", __func__, ldostr);
259 while (regulator_is_enabled(ldo) > 0) {
260 ret = regulator_disable(ldo);
262 LOG("wifi shut off io reference voltage.\n");
268 vddio = &mrfkill->pdata->power_n;
271 if (gpio_is_valid(vddio->io)) {
272 gpio_set_value(vddio->io, vddio->enable);
276 LOG("wifi turn on io reference voltage.\n");
278 if (gpio_is_valid(vddio->io)) {
279 gpio_set_value(vddio->io, !(vddio->enable));
283 LOG("wifi shut off io reference voltage.\n");
290 /**************************************************************************
292 * Wifi Power Control Func
296 *************************************************************************/
297 int rockchip_wifi_power(int on)
299 struct rfkill_wlan_data *mrfkill = g_rfkill;
300 struct rksdmmc_gpio *poweron, *reset;
301 struct regulator *ldo = NULL;
305 LOG("%s: %d\n", __func__, on);
307 if (mrfkill == NULL) {
308 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
312 if (!rfkill_get_bt_power_state(&power, &toggle)) {
313 if (toggle == true && power == 1) {
314 LOG("%s: wifi shouldn't control the power, it was enabled by BT!\n", __func__);
320 rockchip_wifi_ref_voltage(1);
322 if (mrfkill->pdata->mregulator.power_ctrl_by_pmu) {
325 int level = mrfkill->pdata->mregulator.enable;
327 ldostr = mrfkill->pdata->mregulator.pmu_regulator;
328 if (ldostr == NULL) {
329 LOG("%s: wifi power set to be controled by pmic, but which one?\n", __func__);
332 ldo = regulator_get(NULL, ldostr);
333 if (ldo == NULL || IS_ERR(ldo)) {
334 LOG("\n\n\n%s get ldo error,please mod this\n\n\n", __func__);
338 regulator_set_voltage(ldo, 3000000, 3000000);
339 LOG("%s: %s enabled\n", __func__, ldostr);
340 ret = regulator_enable(ldo);
341 wifi_power_state = 1;
342 LOG("wifi turn on power.\n");
344 LOG("%s: %s disabled\n", __func__, ldostr);
345 while (regulator_is_enabled(ldo) > 0) {
346 ret = regulator_disable(ldo);
348 wifi_power_state = 0;
349 LOG("wifi shut off power.\n");
355 poweron = &mrfkill->pdata->power_n;
356 reset = &mrfkill->pdata->reset_n;
359 if (gpio_is_valid(poweron->io)) {
360 gpio_set_value(poweron->io, poweron->enable);
364 if (gpio_is_valid(reset->io)) {
365 gpio_set_value(reset->io, reset->enable);
369 wifi_power_state = 1;
370 LOG("wifi turn on power. %d\n", poweron->io);
372 if (gpio_is_valid(poweron->io)) {
373 gpio_set_value(poweron->io, !(poweron->enable));
377 if (gpio_is_valid(reset->io)) {
378 gpio_set_value(reset->io, !(reset->enable));
381 wifi_power_state = 0;
382 LOG("wifi shut off power.\n");
387 rockchip_wifi_ref_voltage(0);
391 EXPORT_SYMBOL(rockchip_wifi_power);
393 /**************************************************************************
395 * Wifi Sdio Detect Func
397 *************************************************************************/
398 #include <linux/mmc/host.h>
399 extern int mmc_host_rescan(struct mmc_host *host, int val);
400 int rockchip_wifi_set_carddetect(int val)
402 return mmc_host_rescan(NULL, val);//NULL => SDIO host
404 EXPORT_SYMBOL(rockchip_wifi_set_carddetect);
406 /**************************************************************************
408 * Wifi Get Interrupt irq Func
410 *************************************************************************/
411 int rockchip_wifi_get_oob_irq(void)
413 struct rfkill_wlan_data *mrfkill = g_rfkill;
414 struct rksdmmc_gpio *wifi_int_irq;
416 LOG("%s: Enter\n", __func__);
418 if (mrfkill == NULL) {
419 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
423 wifi_int_irq = &mrfkill->pdata->wifi_int_b;
424 if (gpio_is_valid(wifi_int_irq->io)) {
425 return gpio_to_irq(wifi_int_irq->io);
426 //return wifi_int_irq->io;
428 LOG("%s: wifi OOB pin isn't defined.\n", __func__);
433 EXPORT_SYMBOL(rockchip_wifi_get_oob_irq);
435 /**************************************************************************
439 *************************************************************************/
440 int rockchip_wifi_reset(int on)
444 EXPORT_SYMBOL(rockchip_wifi_reset);
446 /**************************************************************************
448 * Wifi MAC custom Func
450 *************************************************************************/
451 #include <linux/etherdevice.h>
452 u8 wifi_custom_mac_addr[6] = {0,0,0,0,0,0};
453 extern char GetSNSectorInfo(char * pbuf);
454 int rockchip_wifi_mac_addr(unsigned char *buf)
458 char mac_buf[20] = {0};
459 LOG("%s: enter.\n", __func__);
462 if(is_zero_ether_addr(wifi_custom_mac_addr)) {
464 char *tempBuf = kmalloc(512, GFP_KERNEL);
466 GetSNSectorInfo(tempBuf);
467 for (i = 506; i <= 511; i++)
468 wifi_custom_mac_addr[i-506] = tempBuf[i];
475 sprintf(mac_buf,"%02x:%02x:%02x:%02x:%02x:%02x",wifi_custom_mac_addr[0],wifi_custom_mac_addr[1],
476 wifi_custom_mac_addr[2],wifi_custom_mac_addr[3],wifi_custom_mac_addr[4],wifi_custom_mac_addr[5]);
477 LOG("falsh wifi_custom_mac_addr=[%s]\n", mac_buf);
479 if (is_valid_ether_addr(wifi_custom_mac_addr)) {
480 if (2 == (wifi_custom_mac_addr[0] & 0x0F)) {
481 LOG("This mac address come into conflict with the address of direct, ignored...\n");
485 LOG("This mac address is not valid, ignored...\n");
489 #if defined(CONFIG_RKWIFI)
490 memcpy(buf, wifi_custom_mac_addr, 6);
492 memcpy(buf, mac_buf, strlen(mac_buf));//realtek's wifi use this branch
497 EXPORT_SYMBOL(rockchip_wifi_mac_addr);
499 /**************************************************************************
501 * wifi get country code func
503 *************************************************************************/
504 struct cntry_locales_custom {
505 char iso_abbrev[4]; /* ISO 3166-1 country abbreviation */
506 char custom_locale[4]; /* Custom firmware locale */
507 int custom_locale_rev; /* Custom local revisin default -1 */
510 static struct cntry_locales_custom country_cloc;
512 void *rockchip_wifi_country_code(char *ccode)
514 struct cntry_locales_custom *mcloc;
516 LOG("%s: set country code [%s]\n", __func__, ccode);
517 mcloc = &country_cloc;
518 memcpy(mcloc->custom_locale, ccode, 4);
519 mcloc->custom_locale_rev = 0;
523 EXPORT_SYMBOL(rockchip_wifi_country_code);
524 /**************************************************************************/
526 static int rockchip_wifi_voltage_select(void)
528 struct rfkill_wlan_data *mrfkill = g_rfkill;
531 if (mrfkill == NULL) {
532 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
535 voltage = mrfkill->pdata->sdio_vol;
536 if (voltage > 2700 && voltage < 3500) {
537 writel_relaxed(0x00100000, RK_GRF_VIRT+0x380); //3.3
538 LOG("%s: wifi & sdio reference voltage: 3.3V\n", __func__);
539 } else if (voltage > 1500 && voltage < 1950) {
540 writel_relaxed(0x00100010, RK_GRF_VIRT+0x380); //1.8
541 LOG("%s: wifi & sdio reference voltage: 1.8V\n", __func__);
543 LOG("%s: unsupport wifi & sdio reference voltage!\n", __func__);
550 static int rfkill_rk_setup_gpio(struct rksdmmc_gpio *gpio, const char* prefix, const char* name)
552 if (gpio_is_valid(gpio->io)) {
554 sprintf(gpio->name, "%s_%s", prefix, name);
555 ret = gpio_request(gpio->io, gpio->name);
557 LOG("Failed to get %s gpio.\n", gpio->name);
566 static int wlan_platdata_parse_dt(struct device *dev,
567 struct rksdmmc_gpio_wifi_moudle *data)
569 struct device_node *node = dev->of_node;
573 enum of_gpio_flags flags;
578 memset(data, 0, sizeof(*data));
580 ret = of_property_read_u32(node, "sdio_vref", &value);
582 LOG("%s: Can't get sdio vref.", __func__);
585 data->sdio_vol = value;
587 if (of_find_property(node, "vref_ctrl_enable", NULL)) {
588 LOG("%s: enable wifi io reference voltage control.\n", __func__);
589 data->vref_ctrl_enble = true;
590 if (of_find_property(node, "vref_ctrl_gpio", NULL)) {
591 gpio = of_get_named_gpio_flags(node, "vref_ctrl_gpio", 0, &flags);
592 if (gpio_is_valid(gpio)){
593 data->vddio.io = gpio;
594 data->vddio.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
595 data->ioregulator.power_ctrl_by_pmu = false;
596 LOG("%s: get property: vref_ctrl_gpio = %d, flags = %d.\n", __func__, gpio, flags);
599 data->vref_ctrl_enble = false;
600 LOG("%s: vref_ctrl_gpio defined invalid, disable wifi io reference voltage control.\n", __func__);
603 data->ioregulator.power_ctrl_by_pmu = true;
604 ret = of_property_read_string(node, "vref_pmu_regulator", &strings);
606 LOG("%s: Can not read property: vref_pmu_regulator.\n", __func__);
607 data->vref_ctrl_enble = false;
608 data->ioregulator.power_ctrl_by_pmu = false;
610 LOG("%s: wifi io reference voltage controled by pmu(%s).\n", __func__, strings);
611 sprintf(data->ioregulator.pmu_regulator, "%s", strings);
613 ret = of_property_read_u32(node, "vref_pmu_enable_level", &value);
615 LOG("%s: Can not read property: vref_pmu_enable_level.\n", __func__);
616 data->vref_ctrl_enble = false;
617 data->ioregulator.power_ctrl_by_pmu = false;
619 LOG("%s: wifi io reference voltage controled by pmu(level = %s).\n", __func__, (value == 1)?"HIGH":"LOW");
620 data->ioregulator.enable = value;
624 data->vref_ctrl_enble = false;
625 LOG("%s: disable wifi io reference voltage control.\n", __func__);
628 if (of_find_property(node, "power_ctrl_by_pmu", NULL)) {
629 data->mregulator.power_ctrl_by_pmu = true;
630 ret = of_property_read_string(node, "power_pmu_regulator", &strings);
632 LOG("%s: Can not read property: power_pmu_regulator.\n", __func__);
633 data->mregulator.power_ctrl_by_pmu = false;
635 LOG("%s: wifi power controled by pmu(%s).\n", __func__, strings);
636 sprintf(data->mregulator.pmu_regulator, "%s", strings);
638 ret = of_property_read_u32(node, "power_pmu_enable_level", &value);
640 LOG("%s: Can not read property: power_pmu_enable_level.\n", __func__);
641 data->mregulator.power_ctrl_by_pmu = false;
643 LOG("%s: wifi power controled by pmu(level = %s).\n", __func__, (value == 1)?"HIGH":"LOW");
644 data->mregulator.enable = value;
647 data->mregulator.power_ctrl_by_pmu = false;
648 LOG("%s: wifi power controled by gpio.\n", __func__);
649 gpio = of_get_named_gpio_flags(node, "WIFI,poweren_gpio", 0, &flags);
650 if (gpio_is_valid(gpio)){
651 data->power_n.io = gpio;
652 data->power_n.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
653 LOG("%s: get property: WIFI,poweren_gpio = %d, flags = %d.\n", __func__, gpio, flags);
654 } else data->power_n.io = -1;
655 gpio = of_get_named_gpio_flags(node, "WIFI,reset_gpio", 0, &flags);
656 if (gpio_is_valid(gpio)){
657 data->reset_n.io = gpio;
658 data->reset_n.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
659 LOG("%s: get property: WIFI,reset_gpio = %d, flags = %d.\n", __func__, gpio, flags);
660 } else data->reset_n.io = -1;
661 gpio = of_get_named_gpio_flags(node, "WIFI,host_wake_irq", 0, &flags);
662 if (gpio_is_valid(gpio)){
663 data->wifi_int_b.io = gpio;
664 data->wifi_int_b.enable = flags;
665 LOG("%s: get property: WIFI,host_wake_irq = %d, flags = %d.\n", __func__, gpio, flags);
666 } else data->wifi_int_b.io = -1;
673 #if defined(CONFIG_HAS_EARLYSUSPEND)
674 #include <linux/earlysuspend.h>
676 static void wlan_early_suspend(struct early_suspend *h)
678 LOG("%s :enter\n", __func__);
683 static void wlan_late_resume(struct early_suspend *h)
685 LOG("%s :enter\n", __func__);
690 struct early_suspend wlan_early_suspend {
691 .level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN - 20;
692 .suspend = wlan_early_suspend;
693 .resume = wlan_late_resume;
697 static int rfkill_wlan_probe(struct platform_device *pdev)
699 struct rfkill_wlan_data *rfkill;
700 struct rksdmmc_gpio_wifi_moudle *pdata = pdev->dev.platform_data;
703 LOG("Enter %s\n", __func__);
707 pdata = kzalloc(sizeof(struct rksdmmc_gpio_wifi_moudle), GFP_KERNEL);
711 ret = wlan_platdata_parse_dt(&pdev->dev, pdata);
714 LOG("%s: No platform data specified\n", __func__);
721 rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
723 goto rfkill_alloc_fail;
725 rfkill->pdata = pdata;
728 LOG("%s: init gpio\n", __func__);
730 if (!pdata->mregulator.power_ctrl_by_pmu) {
731 ret = rfkill_rk_setup_gpio(&pdata->power_n, wlan_name, "wlan_poweren");
732 if (ret) goto fail_alloc;
734 ret = rfkill_rk_setup_gpio(&pdata->reset_n, wlan_name, "wlan_reset");
735 if (ret) goto fail_alloc;
738 wake_lock_init(&(rfkill->wlan_irq_wl), WAKE_LOCK_SUSPEND, "rfkill_wlan_wake");
740 // Turn off wifi power as default
741 if (gpio_is_valid(pdata->power_n.io))
743 gpio_direction_output(pdata->power_n.io, !pdata->power_n.enable);
746 rockchip_wifi_voltage_select();
748 #if BCM_STATIC_MEMORY_SUPPORT
749 rockchip_init_wifi_mem();
752 #if defined(CONFIG_HAS_EARLYSUSPEND)
753 register_early_suspend(wlan_early_suspend);
756 LOG("Exit %s\n", __func__);
770 static int rfkill_wlan_remove(struct platform_device *pdev)
772 struct rfkill_wlan_data *rfkill = platform_get_drvdata(pdev);
774 LOG("Enter %s\n", __func__);
776 wake_lock_destroy(&rfkill->wlan_irq_wl);
778 if (gpio_is_valid(rfkill->pdata->power_n.io))
779 gpio_free(rfkill->pdata->power_n.io);
781 if (gpio_is_valid(rfkill->pdata->reset_n.io))
782 gpio_free(rfkill->pdata->reset_n.io);
784 // if (gpio_is_valid(rfkill->pdata->vddio.io))
785 // gpio_free(rfkill->pdata->vddio.io);
787 // if (gpio_is_valid(rfkill->pdata->bgf_int_b.io))
788 // gpio_free(rfkill->pdata->bgf_int_b.io);
790 // if (gpio_is_valid(rfkill->pdata->gps_sync.io))
791 // gpio_free(rfkill->pdata->gps_sync.io);
793 // if (gpio_is_valid(rfkill->pdata->ANTSEL2.io))
794 // gpio_free(rfkill->pdata->ANTSEL2.io);
796 // if (gpio_is_valid(rfkill->pdata->ANTSEL3.io))
797 // gpio_free(rfkill->pdata->ANTSEL3.io);
799 // if (gpio_is_valid(rfkill->pdata->GPS_LAN.io))
800 // gpio_free(rfkill->pdata->GPS_LAN.io);
808 static int rfkill_wlan_suspend(struct platform_device *pdev, pm_message_t state)
810 LOG("Enter %s\n", __func__);
814 static int rfkill_wlan_resume(struct platform_device *pdev)
816 LOG("Enter %s\n", __func__);
821 static struct of_device_id wlan_platdata_of_match[] = {
822 { .compatible = "wlan-platdata" },
825 MODULE_DEVICE_TABLE(of, wlan_platdata_of_match);
828 static struct platform_driver rfkill_wlan_driver = {
829 .probe = rfkill_wlan_probe,
830 .remove = rfkill_wlan_remove,
831 .suspend = rfkill_wlan_suspend,
832 .resume = rfkill_wlan_resume,
834 .name = "wlan-platdata",
835 .owner = THIS_MODULE,
836 .of_match_table = of_match_ptr(wlan_platdata_of_match),
840 static int __init rfkill_wlan_init(void)
842 LOG("Enter %s\n", __func__);
843 return platform_driver_register(&rfkill_wlan_driver);
846 static void __exit rfkill_wlan_exit(void)
848 LOG("Enter %s\n", __func__);
849 platform_driver_unregister(&rfkill_wlan_driver);
852 module_init(rfkill_wlan_init);
853 module_exit(rfkill_wlan_exit);
855 MODULE_DESCRIPTION("rock-chips rfkill for wifi v0.1");
856 MODULE_AUTHOR("gwl@rock-chips.com");
857 MODULE_LICENSE("GPL");