drivers/net/wireless/rockchip_wlan/rtl8723cs/platform/platform_ARM_SUN50IW1P1_sdio.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2013 Realtek Corporation. All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * this program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  *
  19  ******************************************************************************/
  20 /*
  21  * Description:
  22  *      This file can be applied to following platforms:
  23  *      CONFIG_PLATFORM_ARM_SUN50IW1P1
  24  */
  25 #include <drv_types.h>
  26 #ifdef CONFIG_GPIO_WAKEUP
  27 #include <linux/gpio.h>
  28 #endif
  29
  30 #ifdef CONFIG_MMC
  31 #if defined(CONFIG_PLATFORM_ARM_SUN50IW1P1)
  32 extern void sunxi_mmc_rescan_card(unsigned ids);
  33 extern void sunxi_wlan_set_power(int on);
  34 extern int sunxi_wlan_get_bus_index(void);
  35 extern int sunxi_wlan_get_oob_irq(void);
  36 extern int sunxi_wlan_get_oob_irq_flags(void);
  37 #endif
  38 #ifdef CONFIG_GPIO_WAKEUP
  39 extern unsigned int oob_irq;
  40 #endif
  41 #endif /* CONFIG_MMC */
  42
  43 /*
  44  * Return:
  45  *      0:      power on successfully
  46  *      others: power on failed
  47  */
  48 int platform_wifi_power_on(void)
  49 {
  50         int ret = 0;
  51
  52 #ifdef CONFIG_MMC
  53         {
  54
  55 #if defined(CONFIG_PLATFORM_ARM_SUN50IW1P1)
  56                 int wlan_bus_index = sunxi_wlan_get_bus_index();
  57                 if (wlan_bus_index < 0)
  58                         return wlan_bus_index;
  59
  60                 sunxi_wlan_set_power(1);
  61                 mdelay(100);
  62                 sunxi_mmc_rescan_card(wlan_bus_index);
  63 #endif
  64                 RTW_INFO("%s: power up, rescan card.\n", __FUNCTION__);
  65
  66 #ifdef CONFIG_GPIO_WAKEUP
  67 #if defined(CONFIG_PLATFORM_ARM_SUN50IW1P1)
  68                 oob_irq = sunxi_wlan_get_oob_irq();
  69 #endif
  70 #endif /* CONFIG_GPIO_WAKEUP */
  71         }
  72 #endif /* CONFIG_MMC */
  73
  74         return ret;
  75 }
  76
  77 void platform_wifi_power_off(void)
  78 {
  79 #ifdef CONFIG_MMC
  80 #if defined(CONFIG_PLATFORM_ARM_SUN50IW1P1)
  81         int wlan_bus_index = sunxi_wlan_get_bus_index();
  82         if (wlan_bus_index < 0)
  83                 return;
  84
  85         sunxi_mmc_rescan_card(wlan_bus_index);
  86         mdelay(100);
  87         sunxi_wlan_set_power(0);
  88 #endif
  89         RTW_INFO("%s: remove card, power off.\n", __FUNCTION__);
  90 #endif /* CONFIG_MMC */
  91 }