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 <linuxver.h>
  18 #include <osl.h>
  19 #include <bcmutils.h>
  20
  21 #include <dngl_stats.h>
  22 #include <dhd.h>
  23
  24 #include <wlioctl.h>
  25 #include <wl_iw.h>
  26
  27 #define WL_ERROR(x) printf x
  28 #define WL_TRACE(x)
  29
  30 #ifdef CUSTOMER_HW
  31 extern void bcm_wlan_power_off(int);
  32 extern void bcm_wlan_power_on(int);
  33 #endif                          /* CUSTOMER_HW */
  34 #ifdef CUSTOMER_HW2
  35 int wifi_set_carddetect(int on);
  36 int wifi_set_power(int on, unsigned long msec);
  37 int wifi_get_irq_number(unsigned long *irq_flags_ptr);
  38 #endif
  39
  40 #if defined(OOB_INTR_ONLY)
  41
  42 #if defined(BCMLXSDMMC)
  43 extern int sdioh_mmc_irq(int irq);
  44 #endif                          /* (BCMLXSDMMC)  */
  45
  46 #ifdef CUSTOMER_HW3
  47 #include <mach/gpio.h>
  48 #endif
  49
  50 /* Customer specific Host GPIO defintion  */
  51 static int dhd_oob_gpio_num = -1;       /* GG 19 */
  52
  53 module_param(dhd_oob_gpio_num, int, 0644);
  54 MODULE_PARM_DESC(dhd_oob_gpio_num, "DHD oob gpio number");
  55
  56 int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr)
  57 {
  58         int host_oob_irq = 0;
  59
  60 #ifdef CUSTOMER_HW2
  61         host_oob_irq = wifi_get_irq_number(irq_flags_ptr);
  62
  63 #else                           /* for NOT  CUSTOMER_HW2 */
  64 #if defined(CUSTOM_OOB_GPIO_NUM)
  65         if (dhd_oob_gpio_num < 0)
  66                 dhd_oob_gpio_num = CUSTOM_OOB_GPIO_NUM;
  67 #endif
  68
  69         if (dhd_oob_gpio_num < 0) {
  70                 WL_ERROR(("%s: ERROR customer specific Host GPIO is NOT defined\n",
  71                         __func__));
  72                 return dhd_oob_gpio_num;
  73         }
  74
  75         WL_ERROR(("%s: customer specific Host GPIO number is (%d)\n",
  76                   __func__, dhd_oob_gpio_num));
  77
  78 #if defined CUSTOMER_HW
  79         host_oob_irq = MSM_GPIO_TO_INT(dhd_oob_gpio_num);
  80 #elif defined CUSTOMER_HW3
  81         gpio_request(dhd_oob_gpio_num, "oob irq");
  82         host_oob_irq = gpio_to_irq(dhd_oob_gpio_num);
  83         gpio_direction_input(dhd_oob_gpio_num);
  84 #endif                          /* CUSTOMER_HW */
  85 #endif                          /* CUSTOMER_HW2 */
  86
  87         return host_oob_irq;
  88 }
  89 #endif                          /* defined(OOB_INTR_ONLY) */
  90
  91 /* Customer function to control hw specific wlan gpios */
  92 void dhd_customer_gpio_wlan_ctrl(int onoff)
  93 {
  94         switch (onoff) {
  95         case WLAN_RESET_OFF:
  96                 WL_TRACE(("%s: call customer specific GPIO to insert WLAN RESET\n",
  97                         __func__));
  98 #ifdef CUSTOMER_HW
  99                 bcm_wlan_power_off(2);
 100 #endif                          /* CUSTOMER_HW */
 101 #ifdef CUSTOMER_HW2
 102                 wifi_set_power(0, 0);
 103 #endif
 104                 WL_ERROR(("=========== WLAN placed in RESET ========\n"));
 105                 break;
 106
 107         case WLAN_RESET_ON:
 108                 WL_TRACE(("%s: callc customer specific GPIO to remove WLAN RESET\n",
 109                         __func__));
 110 #ifdef CUSTOMER_HW
 111                 bcm_wlan_power_on(2);
 112 #endif                          /* CUSTOMER_HW */
 113 #ifdef CUSTOMER_HW2
 114                 wifi_set_power(1, 0);
 115 #endif
 116                 WL_ERROR(("=========== WLAN going back to live  ========\n"));
 117                 break;
 118
 119         case WLAN_POWER_OFF:
 120                 WL_TRACE(("%s: call customer specific GPIO to turn off WL_REG_ON\n",
 121                         __func__));
 122 #ifdef CUSTOMER_HW
 123                 bcm_wlan_power_off(1);
 124 #endif                          /* CUSTOMER_HW */
 125                 break;
 126
 127         case WLAN_POWER_ON:
 128                 WL_TRACE(("%s: call customer specific GPIO to turn on WL_REG_ON\n",
 129                         __func__));
 130 #ifdef CUSTOMER_HW
 131                 bcm_wlan_power_on(1);
 132 #endif                          /* CUSTOMER_HW */
 133                 /* Lets customer power to get stable */
 134                 udelay(200);
 135                 break;
 136         }
 137 }
 138
 139 #ifdef GET_CUSTOM_MAC_ENABLE
 140 /* Function to get custom MAC address */
 141 int dhd_custom_get_mac_address(unsigned char *buf)
 142 {
 143         WL_TRACE(("%s Enter\n", __func__));
 144         if (!buf)
 145                 return -EINVAL;
 146
 147         /* Customer access to MAC address stored outside of DHD driver */
 148
 149 #ifdef EXAMPLE_GET_MAC
 150         /* EXAMPLE code */
 151         {
 152                 struct ether_addr ea_example = {
 153                         {0x00, 0x11, 0x22, 0x33, 0x44, 0xFF} };
 154                 bcopy((char *)&ea_example, buf, sizeof(struct ether_addr));
 155         }
 156 #endif                          /* EXAMPLE_GET_MAC */
 157
 158         return 0;
 159 }
 160 #endif                          /* GET_CUSTOM_MAC_ENABLE */