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
dhd_customer_oob_irq_map(unsigned long * irq_flags_ptr)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
dhd_customer_gpio_wlan_ctrl(int onoff)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
dhd_custom_get_mac_address(unsigned char * buf)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