drivers/staging/brcm80211/brcmfmac/dhd_custom_gpio.c

   1 /*
   2  * Copyright (c) 2010 Broadcom Corporation
   3  *
   4  * Permission to use, copy, modify, and/or distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  11  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  13  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  14  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include <linux/netdevice.h>
  18 #include <bcmutils.h>
  19
  20 #include <dngl_stats.h>
  21 #include <dhd.h>
  22
  23 #include <wlioctl.h>
  24 #include <wl_iw.h>
  25
  26 #define WL_ERROR(fmt, args...) printk(fmt, ##args)
  27 #define WL_TRACE(fmt, args...) no_printk(fmt, ##args)
  28
  29 #ifdef CUSTOMER_HW
  30 extern void bcm_wlan_power_off(int);
  31 extern void bcm_wlan_power_on(int);
  32 #endif                          /* CUSTOMER_HW */
  33 #ifdef CUSTOMER_HW2
  34 int wifi_set_carddetect(int on);
  35 int wifi_set_power(int on, unsigned long msec);
  36 int wifi_get_irq_number(unsigned long *irq_flags_ptr);
  37 #endif
  38
  39 #if defined(OOB_INTR_ONLY)
  40
  41 #if defined(BCMLXSDMMC)
  42 extern int sdioh_mmc_irq(int irq);
  43 #endif                          /* (BCMLXSDMMC)  */
  44
  45 #ifdef CUSTOMER_HW3
  46 #include <mach/gpio.h>
  47 #endif
  48
  49 /* Customer specific Host GPIO defintion  */
  50 static int dhd_oob_gpio_num = -1;       /* GG 19 */
  51
  52 module_param(dhd_oob_gpio_num, int, 0644);
  53 MODULE_PARM_DESC(dhd_oob_gpio_num, "DHD oob gpio number");
  54
  55 int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr)
  56 {
  57         int host_oob_irq = 0;
  58
  59 #ifdef CUSTOMER_HW2
  60         host_oob_irq = wifi_get_irq_number(irq_flags_ptr);
  61
  62 #else                           /* for NOT  CUSTOMER_HW2 */
  63 #if defined(CUSTOM_OOB_GPIO_NUM)
  64         if (dhd_oob_gpio_num < 0)
  65                 dhd_oob_gpio_num = CUSTOM_OOB_GPIO_NUM;
  66 #endif
  67
  68         if (dhd_oob_gpio_num < 0) {
  69                 WL_ERROR("%s: ERROR customer specific Host GPIO is NOT defined\n",
  70                          __func__);
  71                 return dhd_oob_gpio_num;
  72         }
  73
  74         WL_ERROR("%s: customer specific Host GPIO number is (%d)\n",
  75                  __func__, dhd_oob_gpio_num);
  76
  77 #if defined CUSTOMER_HW
  78         host_oob_irq = MSM_GPIO_TO_INT(dhd_oob_gpio_num);
  79 #elif defined CUSTOMER_HW3
  80         gpio_request(dhd_oob_gpio_num, "oob irq");
  81         host_oob_irq = gpio_to_irq(dhd_oob_gpio_num);
  82         gpio_direction_input(dhd_oob_gpio_num);
  83 #endif                          /* CUSTOMER_HW */
  84 #endif                          /* CUSTOMER_HW2 */
  85
  86         return host_oob_irq;
  87 }
  88 #endif                          /* defined(OOB_INTR_ONLY) */
  89
  90 /* Customer function to control hw specific wlan gpios */
  91 void dhd_customer_gpio_wlan_ctrl(int onoff)
  92 {
  93         switch (onoff) {
  94         case WLAN_RESET_OFF:
  95                 WL_TRACE("%s: call customer specific GPIO to insert WLAN RESET\n",
  96                          __func__);
  97 #ifdef CUSTOMER_HW
  98                 bcm_wlan_power_off(2);
  99 #endif                          /* CUSTOMER_HW */
 100 #ifdef CUSTOMER_HW2
 101                 wifi_set_power(0, 0);
 102 #endif
 103                 WL_ERROR("=========== WLAN placed in RESET ========\n");
 104                 break;
 105
 106         case WLAN_RESET_ON:
 107                 WL_TRACE("%s: callc customer specific GPIO to remove WLAN RESET\n",
 108                          __func__);
 109 #ifdef CUSTOMER_HW
 110                 bcm_wlan_power_on(2);
 111 #endif                          /* CUSTOMER_HW */
 112 #ifdef CUSTOMER_HW2
 113                 wifi_set_power(1, 0);
 114 #endif
 115                 WL_ERROR("=========== WLAN going back to live  ========\n");
 116                 break;
 117
 118         case WLAN_POWER_OFF:
 119                 WL_TRACE("%s: call customer specific GPIO to turn off WL_REG_ON\n",
 120                          __func__);
 121 #ifdef CUSTOMER_HW
 122                 bcm_wlan_power_off(1);
 123 #endif                          /* CUSTOMER_HW */
 124                 break;
 125
 126         case WLAN_POWER_ON:
 127                 WL_TRACE("%s: call customer specific GPIO to turn on WL_REG_ON\n",
 128                          __func__);
 129 #ifdef CUSTOMER_HW
 130                 bcm_wlan_power_on(1);
 131 #endif                          /* CUSTOMER_HW */
 132                 /* Lets customer power to get stable */
 133                 udelay(200);
 134                 break;
 135         }
 136 }
 137
 138 #ifdef GET_CUSTOM_MAC_ENABLE
 139 /* Function to get custom MAC address */
 140 int dhd_custom_get_mac_address(unsigned char *buf)
 141 {
 142         WL_TRACE("%s Enter\n", __func__);
 143         if (!buf)
 144                 return -EINVAL;
 145
 146         /* Customer access to MAC address stored outside of DHD driver */
 147
 148 #ifdef EXAMPLE_GET_MAC
 149         /* EXAMPLE code */
 150         {
 151                 u8 ea_example[ETH_ALEN] = {0x00, 0x11, 0x22, 0x33, 0x44, 0xFF};
 152                 memcpy(buf, ea_example, ETH_ALEN);
 153         }
 154 #endif                          /* EXAMPLE_GET_MAC */
 155
 156         return 0;
 157 }
 158 #endif                          /* GET_CUSTOM_MAC_ENABLE */