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>
37 #include <linux/skbuff.h>
38 #include <linux/rockchip/cpu.h>
40 #include <linux/rockchip/grf.h>
41 #include <linux/rockchip/common.h>
42 #include <linux/regmap.h>
43 #include <linux/mfd/syscon.h>
46 #include <linux/of_device.h>
47 #include <linux/of_gpio.h>
51 #define DBG(x...) printk(KERN_INFO "[WLAN_RFKILL]: "x)
56 #define LOG(x...) printk(KERN_INFO "[WLAN_RFKILL]: "x)
58 struct rfkill_wlan_data {
59 struct rksdmmc_gpio_wifi_moudle *pdata;
60 struct wake_lock wlan_irq_wl;
63 static struct rfkill_wlan_data *g_rfkill = NULL;
64 static int power_set_time = 0;
66 static const char wlan_name[] =
67 #if defined (CONFIG_BCM4330)
68 #if defined (CONFIG_BT_MODULE_NH660)
73 #elif defined (CONFIG_RK903)
74 #if defined(CONFIG_RKWIFI_26M)
79 #elif defined(CONFIG_BCM4329)
81 #elif defined(CONFIG_MV8787)
83 #elif defined(CONFIG_AP6210)
84 #if defined(CONFIG_RKWIFI_26M)
89 #elif defined(CONFIG_AP6330)
91 #elif defined(CONFIG_AP6476)
93 #elif defined(CONFIG_AP6493)
100 static char wifi_chip_type_string[64];
101 int get_wifi_chip_type(void)
104 if (strcmp(wifi_chip_type_string, "ap6210") == 0) {
106 } else if (strcmp(wifi_chip_type_string, "ap6212") == 0) {
108 } else if (strcmp(wifi_chip_type_string, "rk901") == 0) {
110 } else if (strcmp(wifi_chip_type_string, "rk903") == 0) {
112 } else if (strcmp(wifi_chip_type_string, "ap6181") == 0) {
114 } else if (strcmp(wifi_chip_type_string, "ap6234") == 0) {
116 } else if (strcmp(wifi_chip_type_string, "ap6330") == 0) {
118 } else if (strcmp(wifi_chip_type_string, "ap6335") == 0) {
120 } else if (strcmp(wifi_chip_type_string, "ap6354") == 0) {
122 } else if (strcmp(wifi_chip_type_string, "ap6441") == 0) {
124 } else if (strcmp(wifi_chip_type_string, "ap6476") == 0) {
126 } else if (strcmp(wifi_chip_type_string, "ap6493") == 0) {
128 } else if (strcmp(wifi_chip_type_string, "rtl8188eu") == 0) {
129 type = WIFI_RTL8188EU;
130 } else if (strcmp(wifi_chip_type_string, "rtl8192du") == 0) {
131 type = WIFI_RTL8192DU;
132 } else if (strcmp(wifi_chip_type_string, "rtl8723as") == 0) {
133 type = WIFI_RTL8723AS;
134 } else if (strcmp(wifi_chip_type_string, "rtl8723bs_vq0") == 0) {
135 type = WIFI_RTL8723BS_VQ0;
136 } else if (strcmp(wifi_chip_type_string, "rtl8723bs") == 0) {
137 type = WIFI_RTL8723BS;
138 } else if (strcmp(wifi_chip_type_string, "rtl8723au") == 0) {
139 type = WIFI_RTL8723AU;
140 } else if (strcmp(wifi_chip_type_string, "rtl8723bu") == 0) {
141 type = WIFI_RTL8723BU;
142 } else if (strcmp(wifi_chip_type_string, "rtl8189es") == 0) {
143 type = WIFI_RTL8189ES;
144 } else if (strcmp(wifi_chip_type_string, "rtl8812au") == 0) {
145 type = WIFI_RTL8812AU;
146 } else if (strcmp(wifi_chip_type_string, "esp8089") == 0) {
153 EXPORT_SYMBOL(get_wifi_chip_type);
155 /***********************************************************
157 * Broadcom Wifi Static Memory
159 **********************************************************/
161 #define BCM_STATIC_MEMORY_SUPPORT 0
163 #define BCM_STATIC_MEMORY_SUPPORT 0
165 //===========================
166 #if BCM_STATIC_MEMORY_SUPPORT
167 #define PREALLOC_WLAN_SEC_NUM 4
168 #define PREALLOC_WLAN_BUF_NUM 160
169 #define PREALLOC_WLAN_SECTION_HEADER 0
170 #define WLAN_SKB_BUF_NUM 16
172 #define WLAN_SECTION_SIZE_0 (12 * 1024)
173 #define WLAN_SECTION_SIZE_1 (12 * 1024)
174 #define WLAN_SECTION_SIZE_2 (32 * 1024)
175 #define WLAN_SECTION_SIZE_3 (136* 1024)
176 #define WLAN_SECTION_SIZE_4 (4 * 1024)
177 #define WLAN_SECTION_SIZE_5 (64 * 1024)
178 #define WLAN_SECTION_SIZE_6 (4 * 1024)
179 #define WLAN_SECTION_SIZE_7 (4 * 1024)
181 static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM+1];
183 struct wifi_mem_prealloc {
188 static struct wifi_mem_prealloc wifi_mem_array[8] = {
189 {NULL, (WLAN_SECTION_SIZE_0)},
190 {NULL, (WLAN_SECTION_SIZE_1)},
191 {NULL, (WLAN_SECTION_SIZE_2)},
192 {NULL, (WLAN_SECTION_SIZE_3)},
193 {NULL, (WLAN_SECTION_SIZE_4)},
194 {NULL, (WLAN_SECTION_SIZE_5)},
195 {NULL, (WLAN_SECTION_SIZE_6)},
196 {NULL, (WLAN_SECTION_SIZE_7)}
199 static int rockchip_init_wifi_mem(void)
204 for (i = 0 ; i < WLAN_SKB_BUF_NUM ; i++) {
205 wlan_static_skb[i] = dev_alloc_skb(
206 ((i < (WLAN_SKB_BUF_NUM / 2)) ? (PAGE_SIZE*1) : (PAGE_SIZE*2)));
208 if (!wlan_static_skb[i])
212 wlan_static_skb[i] = dev_alloc_skb((PAGE_SIZE*4));
213 if (!wlan_static_skb[i])
216 for (i = 0 ; i <= 7; i++) {
217 wifi_mem_array[i].mem_ptr =
218 kmalloc(wifi_mem_array[i].size, GFP_KERNEL);
220 if (!wifi_mem_array[i].mem_ptr)
226 pr_err("Failed to mem_alloc for WLAN\n");
227 for (j = 0 ; j < i ; j++)
228 kfree(wifi_mem_array[j].mem_ptr);
229 i = WLAN_SKB_BUF_NUM;
231 pr_err("Failed to skb_alloc for WLAN\n");
232 for (j = 0 ; j < i ; j++)
233 dev_kfree_skb(wlan_static_skb[j]);
234 dev_kfree_skb(wlan_static_skb[j]);
239 void *rockchip_mem_prealloc(int section, unsigned long size)
241 //printk("rockchip_mem_prealloc: section = %d, size = %d\n", section, size);
242 if (section == PREALLOC_WLAN_SEC_NUM)
243 return wlan_static_skb;
245 if ((section < 0) || (section > 7))
248 if (wifi_mem_array[section].size < size)
251 return wifi_mem_array[section].mem_ptr;
254 void *rockchip_mem_prealloc(int section, unsigned long size) { return NULL;}
256 EXPORT_SYMBOL(rockchip_mem_prealloc);
258 /**************************************************************************
260 * get wifi power state Func
262 *************************************************************************/
263 static int wifi_power_state = 0;
264 int rfkill_get_wifi_power_state(int *power, int *vref_ctrl_enable)
266 struct rfkill_wlan_data *mrfkill = g_rfkill;
268 if (mrfkill == NULL) {
269 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
273 if (mrfkill->pdata->vref_ctrl_enble)
274 *vref_ctrl_enable = 1;
275 *power = wifi_power_state;
280 /**************************************************************************
282 * wifi reference voltage control Func
284 *************************************************************************/
285 int rockchip_wifi_ref_voltage(int on)
287 struct rfkill_wlan_data *mrfkill = g_rfkill;
288 struct rksdmmc_gpio *vddio;
289 struct regulator *ldo = NULL;
293 LOG("%s: %d\n", __func__, on);
295 if (mrfkill == NULL) {
296 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
300 if (!mrfkill->pdata->vref_ctrl_enble) {
301 LOG("%s: wifi io reference voltage control is disabled.\n", __func__);
305 if (!rfkill_get_bt_power_state(&power, &toggle)) {
307 LOG("%s: wifi shouldn't control io reference voltage, BT is running!\n", __func__);
312 if (mrfkill->pdata->ioregulator.power_ctrl_by_pmu) {
315 int level = mrfkill->pdata->ioregulator.enable;
316 int voltage = 1000 * mrfkill->pdata->sdio_vol;
318 ldostr = mrfkill->pdata->ioregulator.pmu_regulator;
319 if (ldostr == NULL) {
320 LOG("%s: wifi io reference voltage set to be controled by pmic, but which one?\n", __func__);
323 ldo = regulator_get(NULL, ldostr);
324 if (ldo == NULL || IS_ERR(ldo)) {
325 LOG("\n\n\n%s get ldo error,please mod this\n\n\n", __func__);
329 if(cpu_is_rk3036() || cpu_is_rk312x())
331 /*regulator_set_voltage(ldo, voltage, voltage);
332 LOG("%s: %s enabled, level = %d\n", __func__, ldostr, voltage);
333 ret = regulator_enable(ldo);
334 LOG("wifi turn on io reference voltage.\n");*/
336 regulator_set_voltage(ldo, voltage, voltage);
337 LOG("%s: %s enabled, level = %d\n", __func__, ldostr, voltage);
338 ret = regulator_enable(ldo);
339 LOG("wifi turn on io reference voltage.\n");
342 LOG("%s: %s disabled\n", __func__, ldostr);
343 while (regulator_is_enabled(ldo) > 0) {
344 ret = regulator_disable(ldo);
346 LOG("wifi shut off io reference voltage.\n");
352 vddio = &mrfkill->pdata->power_n;
355 if (gpio_is_valid(vddio->io)) {
356 gpio_set_value(vddio->io, vddio->enable);
360 LOG("wifi turn on io reference voltage.\n");
362 if (gpio_is_valid(vddio->io)) {
363 gpio_set_value(vddio->io, !(vddio->enable));
367 LOG("wifi shut off io reference voltage.\n");
374 /**************************************************************************
376 * Wifi Power Control Func
380 *************************************************************************/
381 int rockchip_wifi_power(int on)
383 struct rfkill_wlan_data *mrfkill = g_rfkill;
384 struct rksdmmc_gpio *poweron, *reset;
385 struct regulator *ldo = NULL;
389 LOG("%s: %d\n", __func__, on);
391 if (mrfkill == NULL) {
392 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
396 if (mrfkill->pdata->wifi_power_remain && power_set_time) {
397 LOG("%s: wifi power is setted to be remain on. skip anything to the power control", __func__);
399 } else power_set_time++;
401 if (!rfkill_get_bt_power_state(&power, &toggle)) {
402 if (toggle == true && power == 1) {
403 LOG("%s: wifi shouldn't control the power, it was enabled by BT!\n", __func__);
409 rockchip_wifi_ref_voltage(1);
411 if (mrfkill->pdata->mregulator.power_ctrl_by_pmu) {
414 int level = mrfkill->pdata->mregulator.enable;
416 ldostr = mrfkill->pdata->mregulator.pmu_regulator;
417 if (ldostr == NULL) {
418 LOG("%s: wifi power set to be controled by pmic, but which one?\n", __func__);
421 ldo = regulator_get(NULL, ldostr);
422 if (ldo == NULL || IS_ERR(ldo)) {
423 LOG("\n\n\n%s get ldo error,please mod this\n\n\n", __func__);
427 regulator_set_voltage(ldo, 3000000, 3000000);
428 LOG("%s: %s enabled\n", __func__, ldostr);
429 ret = regulator_enable(ldo);
430 wifi_power_state = 1;
431 LOG("wifi turn on power.\n");
433 LOG("%s: %s disabled\n", __func__, ldostr);
434 while (regulator_is_enabled(ldo) > 0) {
435 ret = regulator_disable(ldo);
437 wifi_power_state = 0;
438 LOG("wifi shut off power.\n");
444 poweron = &mrfkill->pdata->power_n;
445 reset = &mrfkill->pdata->reset_n;
448 if (gpio_is_valid(poweron->io)) {
449 gpio_set_value(poweron->io, poweron->enable);
453 if (gpio_is_valid(reset->io)) {
454 gpio_set_value(reset->io, reset->enable);
458 wifi_power_state = 1;
459 LOG("wifi turn on power. %d\n", poweron->io);
461 if (gpio_is_valid(poweron->io)) {
462 gpio_set_value(poweron->io, !(poweron->enable));
466 if (gpio_is_valid(reset->io)) {
467 gpio_set_value(reset->io, !(reset->enable));
470 wifi_power_state = 0;
471 LOG("wifi shut off power.\n");
476 rockchip_wifi_ref_voltage(0);
480 EXPORT_SYMBOL(rockchip_wifi_power);
482 /**************************************************************************
484 * Wifi Sdio Detect Func
486 *************************************************************************/
487 #include <linux/mmc/host.h>
488 extern int mmc_host_rescan(struct mmc_host *host, int val, int irq_type);
489 int rockchip_wifi_set_carddetect(int val)
492 chip = get_wifi_chip_type();
494 /* irq_type : 0, oob; 1, cap-sdio-irq */
495 if (!strncmp(wifi_chip_type_string, "ap", 2) ||
496 !strncmp(wifi_chip_type_string, "rk", 2))
501 return mmc_host_rescan(NULL, val, irq_type);//NULL => SDIO host
503 EXPORT_SYMBOL(rockchip_wifi_set_carddetect);
505 /**************************************************************************
507 * Wifi Get Interrupt irq Func
509 *************************************************************************/
510 int rockchip_wifi_get_oob_irq(void)
512 struct rfkill_wlan_data *mrfkill = g_rfkill;
513 struct rksdmmc_gpio *wifi_int_irq;
515 LOG("%s: Enter\n", __func__);
517 if (mrfkill == NULL) {
518 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
522 wifi_int_irq = &mrfkill->pdata->wifi_int_b;
523 if (gpio_is_valid(wifi_int_irq->io)) {
524 return gpio_to_irq(wifi_int_irq->io);
525 //return wifi_int_irq->io;
527 LOG("%s: wifi OOB pin isn't defined.\n", __func__);
532 EXPORT_SYMBOL(rockchip_wifi_get_oob_irq);
534 /**************************************************************************
538 *************************************************************************/
539 int rockchip_wifi_reset(int on)
543 EXPORT_SYMBOL(rockchip_wifi_reset);
545 /**************************************************************************
547 * Wifi MAC custom Func
549 *************************************************************************/
550 #include <linux/etherdevice.h>
551 u8 wifi_custom_mac_addr[6] = {0,0,0,0,0,0};
552 extern char GetSNSectorInfo(char * pbuf);
553 int rockchip_wifi_mac_addr(unsigned char *buf)
555 char mac_buf[20] = {0};
556 LOG("%s: enter.\n", __func__);
559 if(is_zero_ether_addr(wifi_custom_mac_addr)) {
561 char *tempBuf = kmalloc(512, GFP_KERNEL);
563 GetSNSectorInfo(tempBuf);
564 for (i = 445; i <= 450; i++)
565 wifi_custom_mac_addr[i-445] = tempBuf[i];
572 sprintf(mac_buf,"%02x:%02x:%02x:%02x:%02x:%02x",wifi_custom_mac_addr[0],wifi_custom_mac_addr[1],
573 wifi_custom_mac_addr[2],wifi_custom_mac_addr[3],wifi_custom_mac_addr[4],wifi_custom_mac_addr[5]);
574 LOG("falsh wifi_custom_mac_addr=[%s]\n", mac_buf);
576 if (is_valid_ether_addr(wifi_custom_mac_addr)) {
577 if (2 == (wifi_custom_mac_addr[0] & 0x0F)) {
578 LOG("This mac address come into conflict with the address of direct, ignored...\n");
582 LOG("This mac address is not valid, ignored...\n");
586 memcpy(buf, wifi_custom_mac_addr, 6);
590 EXPORT_SYMBOL(rockchip_wifi_mac_addr);
592 /**************************************************************************
594 * wifi get country code func
596 *************************************************************************/
597 struct cntry_locales_custom {
598 char iso_abbrev[4]; /* ISO 3166-1 country abbreviation */
599 char custom_locale[4]; /* Custom firmware locale */
600 int custom_locale_rev; /* Custom local revisin default -1 */
603 static struct cntry_locales_custom country_cloc;
605 void *rockchip_wifi_country_code(char *ccode)
607 struct cntry_locales_custom *mcloc;
609 LOG("%s: set country code [%s]\n", __func__, ccode);
610 mcloc = &country_cloc;
611 memcpy(mcloc->custom_locale, ccode, 4);
612 mcloc->custom_locale_rev = 0;
616 EXPORT_SYMBOL(rockchip_wifi_country_code);
617 /**************************************************************************/
619 #define RK3368_GRF_IO_VSEL 0x900
620 static int rockchip_wifi_voltage_select(void)
622 struct rfkill_wlan_data *mrfkill = g_rfkill;
625 if (mrfkill == NULL) {
626 LOG("%s: rfkill-wlan driver has not Successful initialized\n", __func__);
630 voltage = mrfkill->pdata->sdio_vol;
631 if (cpu_is_rk3288()) {
632 if (voltage > 2700 && voltage < 3500) {
633 writel_relaxed(0x00100000, RK_GRF_VIRT+0x380); //3.3
634 LOG("%s: wifi & sdio reference voltage: 3.3V\n", __func__);
635 } else if (voltage > 1500 && voltage < 1950) {
636 writel_relaxed(0x00100010, RK_GRF_VIRT+0x380); //1.8
637 LOG("%s: wifi & sdio reference voltage: 1.8V\n", __func__);
639 LOG("%s: unsupport wifi & sdio reference voltage!\n", __func__);
642 } else if(cpu_is_rk3036() || cpu_is_rk312x()) {
644 #ifdef CONFIG_MFD_SYSCON
645 if (voltage > 2700 && voltage < 3500) {
646 regmap_write(mrfkill->pdata->grf, RK3368_GRF_IO_VSEL, ((1<<3)<<16)|(0<<3)); //3.3
647 LOG("%s: wifi & sdio reference voltage: 3.3V\n", __func__);
648 } else if (voltage > 1500 && voltage < 1950) {
649 regmap_write(mrfkill->pdata->grf, RK3368_GRF_IO_VSEL, ((1<<3)<<16)|(1<<3)); //1.8
650 LOG("%s: wifi & sdio reference voltage: 1.8V\n", __func__);
654 LOG("%s: unsupport wifi & sdio reference voltage!\n", __func__);
662 static int rfkill_rk_setup_gpio(struct rksdmmc_gpio *gpio, const char* prefix, const char* name)
664 if (gpio_is_valid(gpio->io)) {
666 sprintf(gpio->name, "%s_%s", prefix, name);
667 ret = gpio_request(gpio->io, gpio->name);
669 LOG("Failed to get %s gpio.\n", gpio->name);
678 static int wlan_platdata_parse_dt(struct device *dev,
679 struct rksdmmc_gpio_wifi_moudle *data)
681 struct device_node *node = dev->of_node;
685 enum of_gpio_flags flags;
690 memset(data, 0, sizeof(*data));
692 #ifdef CONFIG_MFD_SYSCON
693 data->grf = syscon_regmap_lookup_by_phandle(node, "rockchip,grf");
694 if (IS_ERR(data->grf)) {
695 LOG("can't find rockchip,grf property\n");
700 ret = of_property_read_string(node, "wifi_chip_type", &strings);
702 LOG("%s: Can not read wifi_chip_type, set default to rkwifi.\n", __func__);
703 strcpy(wifi_chip_type_string, "rkwifi");
705 strcpy(wifi_chip_type_string, strings);
707 LOG("%s: wifi_chip_type = %s\n", __func__, wifi_chip_type_string);
709 if(cpu_is_rk3036() || cpu_is_rk312x()){
710 /* ret = of_property_read_u32(node, "sdio_vref", &value);
712 LOG("%s: Can't get sdio vref.", __func__);
715 data->sdio_vol = value;*/
717 ret = of_property_read_u32(node, "sdio_vref", &value);
719 LOG("%s: Can't get sdio vref.", __func__);
722 data->sdio_vol = value;
725 if (of_find_property(node, "keep_wifi_power_on", NULL)) {
726 data->wifi_power_remain = true;
727 LOG("%s: wifi power will enabled while kernel starting and keep on.\n", __func__);
729 data->wifi_power_remain = false;
730 LOG("%s: enable wifi power control.\n", __func__);
733 if (of_find_property(node, "vref_ctrl_enable", NULL)) {
734 LOG("%s: enable wifi io reference voltage control.\n", __func__);
735 data->vref_ctrl_enble = true;
736 if (of_find_property(node, "vref_ctrl_gpio", NULL)) {
737 gpio = of_get_named_gpio_flags(node, "vref_ctrl_gpio", 0, &flags);
738 if (gpio_is_valid(gpio)){
739 data->vddio.io = gpio;
740 data->vddio.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
741 data->ioregulator.power_ctrl_by_pmu = false;
742 LOG("%s: get property: vref_ctrl_gpio = %d, flags = %d.\n", __func__, gpio, flags);
745 data->vref_ctrl_enble = false;
746 LOG("%s: vref_ctrl_gpio defined invalid, disable wifi io reference voltage control.\n", __func__);
749 data->ioregulator.power_ctrl_by_pmu = true;
750 ret = of_property_read_string(node, "vref_pmu_regulator", &strings);
752 LOG("%s: Can not read property: vref_pmu_regulator.\n", __func__);
753 data->vref_ctrl_enble = false;
754 data->ioregulator.power_ctrl_by_pmu = false;
756 LOG("%s: wifi io reference voltage controled by pmu(%s).\n", __func__, strings);
757 sprintf(data->ioregulator.pmu_regulator, "%s", strings);
759 ret = of_property_read_u32(node, "vref_pmu_enable_level", &value);
761 LOG("%s: Can not read property: vref_pmu_enable_level.\n", __func__);
762 data->vref_ctrl_enble = false;
763 data->ioregulator.power_ctrl_by_pmu = false;
765 LOG("%s: wifi io reference voltage controled by pmu(level = %s).\n", __func__, (value == 1)?"HIGH":"LOW");
766 data->ioregulator.enable = value;
770 data->vref_ctrl_enble = false;
771 LOG("%s: disable wifi io reference voltage control.\n", __func__);
774 if (of_find_property(node, "power_ctrl_by_pmu", NULL)) {
775 data->mregulator.power_ctrl_by_pmu = true;
776 ret = of_property_read_string(node, "power_pmu_regulator", &strings);
778 LOG("%s: Can not read property: power_pmu_regulator.\n", __func__);
779 data->mregulator.power_ctrl_by_pmu = false;
781 LOG("%s: wifi power controled by pmu(%s).\n", __func__, strings);
782 sprintf(data->mregulator.pmu_regulator, "%s", strings);
784 ret = of_property_read_u32(node, "power_pmu_enable_level", &value);
786 LOG("%s: Can not read property: power_pmu_enable_level.\n", __func__);
787 data->mregulator.power_ctrl_by_pmu = false;
789 LOG("%s: wifi power controled by pmu(level = %s).\n", __func__, (value == 1)?"HIGH":"LOW");
790 data->mregulator.enable = value;
793 data->mregulator.power_ctrl_by_pmu = false;
794 LOG("%s: wifi power controled by gpio.\n", __func__);
795 gpio = of_get_named_gpio_flags(node, "WIFI,poweren_gpio", 0, &flags);
796 if (gpio_is_valid(gpio)){
797 data->power_n.io = gpio;
798 data->power_n.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
799 LOG("%s: get property: WIFI,poweren_gpio = %d, flags = %d.\n", __func__, gpio, flags);
800 } else data->power_n.io = -1;
801 gpio = of_get_named_gpio_flags(node, "WIFI,reset_gpio", 0, &flags);
802 if (gpio_is_valid(gpio)){
803 data->reset_n.io = gpio;
804 data->reset_n.enable = (flags == GPIO_ACTIVE_HIGH)? 1:0;
805 LOG("%s: get property: WIFI,reset_gpio = %d, flags = %d.\n", __func__, gpio, flags);
806 } else data->reset_n.io = -1;
807 gpio = of_get_named_gpio_flags(node, "WIFI,host_wake_irq", 0, &flags);
808 if (gpio_is_valid(gpio)){
809 data->wifi_int_b.io = gpio;
810 data->wifi_int_b.enable = flags;
811 LOG("%s: get property: WIFI,host_wake_irq = %d, flags = %d.\n", __func__, gpio, flags);
812 } else data->wifi_int_b.io = -1;
819 #if defined(CONFIG_HAS_EARLYSUSPEND)
820 #include <linux/earlysuspend.h>
822 static void wlan_early_suspend(struct early_suspend *h)
824 LOG("%s :enter\n", __func__);
829 static void wlan_late_resume(struct early_suspend *h)
831 LOG("%s :enter\n", __func__);
836 struct early_suspend wlan_early_suspend {
837 .level = EARLY_SUSPEND_LEVEL_BLANK_SCREEN - 20;
838 .suspend = wlan_early_suspend;
839 .resume = wlan_late_resume;
843 static void rfkill_wlan_early_suspend(void)
845 //LOG("%s :enter\n", __func__);
850 static void rfkill_wlan_later_resume(void)
852 //LOG("%s :enter\n", __func__);
857 static int rfkill_wlan_fb_event_notify(struct notifier_block *self,
858 unsigned long action, void *data)
861 struct fb_event *event = data;
862 int blank_mode = *((int *)event->data);
864 switch (blank_mode) {
865 case FB_BLANK_UNBLANK:
866 rfkill_wlan_later_resume();
868 case FB_BLANK_NORMAL:
869 rfkill_wlan_early_suspend();
872 rfkill_wlan_early_suspend();
879 static struct notifier_block rfkill_wlan_fb_notifier = {
880 .notifier_call = rfkill_wlan_fb_event_notify,
884 static int rfkill_wlan_probe(struct platform_device *pdev)
886 struct rfkill_wlan_data *rfkill;
887 struct rksdmmc_gpio_wifi_moudle *pdata = pdev->dev.platform_data;
890 LOG("Enter %s\n", __func__);
894 pdata = kzalloc(sizeof(struct rksdmmc_gpio_wifi_moudle), GFP_KERNEL);
898 ret = wlan_platdata_parse_dt(&pdev->dev, pdata);
901 LOG("%s: No platform data specified\n", __func__);
908 rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
910 goto rfkill_alloc_fail;
912 rfkill->pdata = pdata;
915 LOG("%s: init gpio\n", __func__);
917 if (!pdata->mregulator.power_ctrl_by_pmu) {
918 ret = rfkill_rk_setup_gpio(&pdata->power_n, wlan_name, "wlan_poweren");
919 if (ret) goto fail_alloc;
921 ret = rfkill_rk_setup_gpio(&pdata->reset_n, wlan_name, "wlan_reset");
922 if (ret) goto fail_alloc;
925 wake_lock_init(&(rfkill->wlan_irq_wl), WAKE_LOCK_SUSPEND, "rfkill_wlan_wake");
927 // Turn off wifi power as default
928 if (gpio_is_valid(pdata->power_n.io))
930 gpio_direction_output(pdata->power_n.io, !pdata->power_n.enable);
933 if (pdata->wifi_power_remain)
935 rockchip_wifi_power(1);
938 rockchip_wifi_voltage_select();
940 #if BCM_STATIC_MEMORY_SUPPORT
941 rockchip_init_wifi_mem();
944 #if defined(CONFIG_HAS_EARLYSUSPEND)
945 register_early_suspend(wlan_early_suspend);
948 fb_register_client(&rfkill_wlan_fb_notifier);
950 LOG("Exit %s\n", __func__);
964 static int rfkill_wlan_remove(struct platform_device *pdev)
966 struct rfkill_wlan_data *rfkill = platform_get_drvdata(pdev);
968 LOG("Enter %s\n", __func__);
970 wake_lock_destroy(&rfkill->wlan_irq_wl);
972 fb_unregister_client(&rfkill_wlan_fb_notifier);
974 if (gpio_is_valid(rfkill->pdata->power_n.io))
975 gpio_free(rfkill->pdata->power_n.io);
977 if (gpio_is_valid(rfkill->pdata->reset_n.io))
978 gpio_free(rfkill->pdata->reset_n.io);
980 // if (gpio_is_valid(rfkill->pdata->vddio.io))
981 // gpio_free(rfkill->pdata->vddio.io);
983 // if (gpio_is_valid(rfkill->pdata->bgf_int_b.io))
984 // gpio_free(rfkill->pdata->bgf_int_b.io);
986 // if (gpio_is_valid(rfkill->pdata->gps_sync.io))
987 // gpio_free(rfkill->pdata->gps_sync.io);
989 // if (gpio_is_valid(rfkill->pdata->ANTSEL2.io))
990 // gpio_free(rfkill->pdata->ANTSEL2.io);
992 // if (gpio_is_valid(rfkill->pdata->ANTSEL3.io))
993 // gpio_free(rfkill->pdata->ANTSEL3.io);
995 // if (gpio_is_valid(rfkill->pdata->GPS_LAN.io))
996 // gpio_free(rfkill->pdata->GPS_LAN.io);
1004 static int rfkill_wlan_suspend(struct platform_device *pdev, pm_message_t state)
1006 LOG("Enter %s\n", __func__);
1010 static int rfkill_wlan_resume(struct platform_device *pdev)
1012 LOG("Enter %s\n", __func__);
1017 static struct of_device_id wlan_platdata_of_match[] = {
1018 { .compatible = "wlan-platdata" },
1021 MODULE_DEVICE_TABLE(of, wlan_platdata_of_match);
1024 static struct platform_driver rfkill_wlan_driver = {
1025 .probe = rfkill_wlan_probe,
1026 .remove = rfkill_wlan_remove,
1027 .suspend = rfkill_wlan_suspend,
1028 .resume = rfkill_wlan_resume,
1030 .name = "wlan-platdata",
1031 .owner = THIS_MODULE,
1032 .of_match_table = of_match_ptr(wlan_platdata_of_match),
1036 static int __init rfkill_wlan_init(void)
1038 LOG("Enter %s\n", __func__);
1039 return platform_driver_register(&rfkill_wlan_driver);
1042 static void __exit rfkill_wlan_exit(void)
1044 LOG("Enter %s\n", __func__);
1045 platform_driver_unregister(&rfkill_wlan_driver);
1048 module_init(rfkill_wlan_init);
1049 module_exit(rfkill_wlan_exit);
1051 MODULE_DESCRIPTION("rock-chips rfkill for wifi v0.1");
1052 MODULE_AUTHOR("gwl@rock-chips.com");
1053 MODULE_LICENSE("GPL");