1 /* 2 * Customer code to add GPIO control during WLAN start/stop 3 * Copyright (C) 1999-2010, Broadcom Corporation 4 * 5 * Unless you and Broadcom execute a separate written software license 6 * agreement governing use of this software, this software is licensed to you 7 * under the terms of the GNU General Public License version 2 (the "GPL"), 8 * available at http://www.broadcom.com/licenses/GPLv2.php, with the 9 * following added to such license: 10 * 11 * As a special exception, the copyright holders of this software give you 12 * permission to link this software with independent modules, and to copy and 13 * distribute the resulting executable under terms of your choice, provided that 14 * you also meet, for each linked independent module, the terms and conditions of 15 * the license of that module. An independent module is a module which is not 16 * derived from this software. The special exception does not apply to any 17 * modifications of the software. 18 * 19 * Notwithstanding the above, under no circumstances may you combine this 20 * software in any way with any other Broadcom software provided under a license 21 * other than the GPL, without Broadcom's express prior written consent. 22 * 23 * $Id: dhd_custom_gpio.c,v 1.1.4.8.4.1 2010/09/02 23:13:16 Exp $ 24 */ 25 26 27 #include <typedefs.h> 28 #include <linuxver.h> 29 #include <osl.h> 30 #include <bcmutils.h> 31 32 #include <dngl_stats.h> 33 #include <dhd.h> 34 35 #include <wlioctl.h> 36 #include <wl_iw.h> 37 38 #define WL_ERROR(x) printf x 39 #define WL_TRACE(x) 40 41 #ifdef CUSTOMER_HW 42 extern void bcm_wlan_power_off(int); 43 extern void bcm_wlan_power_on(int); 44 #endif /* CUSTOMER_HW */ 45 #ifdef CUSTOMER_HW2 46 int wifi_set_carddetect(int on); 47 int wifi_set_power(int on, unsigned long msec); 48 int wifi_get_irq_number(unsigned long *irq_flags_ptr); 49 int wifi_get_mac_addr(unsigned char *buf); 50 #endif 51 52 #if defined(OOB_INTR_ONLY) 53 54 #if defined(BCMLXSDMMC) 55 extern int sdioh_mmc_irq(int irq); 56 #endif /* (BCMLXSDMMC) */ 57 58 #ifdef CUSTOMER_HW3 59 #include <mach/gpio.h> 60 #endif 61 62 /* Customer specific Host GPIO defintion */ 63 static int dhd_oob_gpio_num = -1; /* GG 19 */ 64 65 module_param(dhd_oob_gpio_num, int, 0644); 66 MODULE_PARM_DESC(dhd_oob_gpio_num, "DHD oob gpio number"); 67 68 int dhd_customer_oob_irq_map(unsigned long *irq_flags_ptr) 69 { 70 int host_oob_irq = 0; 71 72 #ifdef CUSTOMER_HW2 73 host_oob_irq = wifi_get_irq_number(irq_flags_ptr); 74 75 #else /* for NOT CUSTOMER_HW2 */ 76 #if defined(CUSTOM_OOB_GPIO_NUM) 77 if (dhd_oob_gpio_num < 0) { 78 dhd_oob_gpio_num = CUSTOM_OOB_GPIO_NUM; 79 } 80 #endif 81 82 if (dhd_oob_gpio_num < 0) { 83 WL_ERROR(("%s: ERROR customer specific Host GPIO is NOT defined \n", 84 __FUNCTION__)); 85 return (dhd_oob_gpio_num); 86 } 87 88 WL_ERROR(("%s: customer specific Host GPIO number is (%d)\n", 89 __FUNCTION__, dhd_oob_gpio_num)); 90 91 #if defined CUSTOMER_HW 92 host_oob_irq = MSM_GPIO_TO_INT(dhd_oob_gpio_num); 93 #elif defined CUSTOMER_HW3 94 gpio_request(dhd_oob_gpio_num, "oob irq"); 95 host_oob_irq = gpio_to_irq(dhd_oob_gpio_num); 96 gpio_direction_input(dhd_oob_gpio_num); 97 #endif /* CUSTOMER_HW */ 98 #endif /* CUSTOMER_HW2 */ 99 100 return (host_oob_irq); 101 } 102 #endif /* defined(OOB_INTR_ONLY) */ 103 104 /* Customer function to control hw specific wlan gpios */ 105 void 106 dhd_customer_gpio_wlan_ctrl(int onoff) 107 { 108 switch (onoff) { 109 case WLAN_RESET_OFF: 110 WL_TRACE(("%s: call customer specific GPIO to insert WLAN RESET\n", 111 __FUNCTION__)); 112 #ifdef CUSTOMER_HW 113 bcm_wlan_power_off(2); 114 #endif /* CUSTOMER_HW */ 115 #ifdef CUSTOMER_HW2 116 wifi_set_power(0, 0); 117 #endif 118 WL_ERROR(("=========== WLAN placed in RESET ========\n")); 119 break; 120 121 case WLAN_RESET_ON: 122 WL_TRACE(("%s: callc customer specific GPIO to remove WLAN RESET\n", 123 __FUNCTION__)); 124 #ifdef CUSTOMER_HW 125 bcm_wlan_power_on(2); 126 #endif /* CUSTOMER_HW */ 127 #ifdef CUSTOMER_HW2 128 wifi_set_power(1, 0); 129 #endif 130 WL_ERROR(("=========== WLAN going back to live ========\n")); 131 break; 132 133 case WLAN_POWER_OFF: 134 WL_TRACE(("%s: call customer specific GPIO to turn off WL_REG_ON\n", 135 __FUNCTION__)); 136 #ifdef CUSTOMER_HW 137 bcm_wlan_power_off(1); 138 #endif /* CUSTOMER_HW */ 139 break; 140 141 case WLAN_POWER_ON: 142 WL_TRACE(("%s: call customer specific GPIO to turn on WL_REG_ON\n", 143 __FUNCTION__)); 144 #ifdef CUSTOMER_HW 145 bcm_wlan_power_on(1); 146 /* Lets customer power to get stable */ 147 OSL_DELAY(50); 148 #endif /* CUSTOMER_HW */ 149 break; 150 } 151 } 152 153 #ifdef GET_CUSTOM_MAC_ENABLE 154 /* Function to get custom MAC address */ 155 int 156 dhd_custom_get_mac_address(unsigned char *buf) 157 { 158 int ret = 0; 159 160 WL_TRACE(("%s Enter\n", __FUNCTION__)); 161 if (!buf) 162 return -EINVAL; 163 164 /* Customer access to MAC address stored outside of DHD driver */ 165 #ifdef CUSTOMER_HW2 166 ret = wifi_get_mac_addr(buf); 167 #endif 168 169 #ifdef EXAMPLE_GET_MAC 170 /* EXAMPLE code */ 171 { 172 struct ether_addr ea_example = {{0x00, 0x11, 0x22, 0x33, 0x44, 0xFF}}; 173 bcopy((char *)&ea_example, buf, sizeof(struct ether_addr)); 174 } 175 #endif /* EXAMPLE_GET_MAC */ 176 177 return ret; 178 } 179 #endif /* GET_CUSTOM_MAC_ENABLE */ 180
